WO2020220788A1

WO2020220788A1 - Air fryer convenient for processing

Info

Publication number: WO2020220788A1
Application number: PCT/CN2020/074704
Authority: WO
Inventors: 王旭宁; 于晓航; 张雪岩; 魏云杰; 金恩来; 张铮
Original assignee: 九阳股份有限公司
Priority date: 2019-04-30
Filing date: 2020-02-11
Publication date: 2020-11-05
Also published as: TW202041182A

Abstract

Disclosed is an air fryer, comprising a machine base (15) and a cover body (10) connected to the machine base (15), wherein the machine base (15) is provided with a holding cavity (150); the holding cavity (150) is internally provided with a fryer assembly; the cover body (10) is provided with a hot air assembly; the hot air assembly comprises an air guide plate (111), a hot air fan (112) and a heating member (113); the machine base (15) is further internally provided with a steam generation device; the steam generation device comprises a steam generator (6) and a steam pipeline; and the steam generator (6) is in communication with the holding cavity (150) via the steam pipeline to introduce steam into the holding cavity (150).

Description

A convenient air fryer

This application claims the priority of the following Chinese patent applications:

Submitted to the Chinese Patent Office on April 30, 2019, the application number is 201910357834.0, and the invention title is "a multifunctional cooking appliance".

It was submitted to the Chinese Patent Office on April 30, 2019, the application number is 201910357810.5, and the invention title is "A reliable processing air fryer".

Submitted to the Chinese Patent Office on October 11, 2019, the application number is 201910961791.7, and the title of the invention is "a convenient air fryer".

The entire content is incorporated into this application by reference.

Technical field

The invention relates to the field of food processing, in particular to an air fryer that is convenient for processing.

Background technique

The existing air fryer, especially an air fryer including a stirring device, usually includes a cover body and a base. The cover body is provided with a hot air fan and a heating element. The base is provided with a containing cavity, and the containing cavity is provided with an internal The pot and the stirring device are arranged in the inner pot. The air fryer relies on a hot air fan and a heating element to heat and grill the food materials placed in the inner pot to complete the processing of the food materials. The stirring device is provided to further stir and turn the ingredients in the inner pot, especially for small and dispersed ingredients, which are not easy to be processed uniformly when the ingredients are piled up. The stirring device can solve this problem.

However, this kind of air fryer has relatively single processing function and can only be used for grilling ingredients, and continuous grilling of ingredients will also make the ingredients too dry. When processing meat, it will cause the meat ingredients to lose too much water and affect the meat. The taste of the ingredients.

In response to the above problems, the application number CN201720587695.7 discloses an air fryer, which is equipped with a water storage device in the inner pot, and water is injected into the water storage device. During the working process, the water in the water storage device will be heated to form steam , The steam enters the containing cavity, which increases the temperature in the containing cavity, thereby improving the taste of the food.

However, this air fryer directly installs the water storage device in the containing cavity. During the working process, if there is water in the water storage device, the function of increasing steam can be realized. There is no water in the water storage device or the water is evaporated. The purpose of heating the accommodating cavity can no longer be achieved, and the water storage device is arranged in the accommodating cavity. If the set program does not require steam heating, but if the user injects water into the water storage device, the steam cannot be controlled during processing The production of food, on the contrary, makes the food materials unable to be better processed. The water storage device only relies on the heating element of the air fryer itself to achieve heating. As the temperature in the accommodating cavity rises, the steam generation speed increases, but the steam speed cannot be controlled, which cannot meet the needs of fast steam generation functions. ; And because the water storage device will absorb the heat generated by some heating elements, the overall processing efficiency of the air fryer is also reduced.

When using the air fryer, the user expects to observe the food inside the cavity at the same time during the processing. At this time, it is necessary to install an observation window on the cover, but because the hot air component occupies a larger proportion of the volume of the cover, the observation window It is impossible to set a large area, and when the user observes from the observation window, the food material cannot be completely observed, which affects the control of the food material processing process. Another existing method is to raise the hot air component and the observation window to enlarge the area of the observation window from the vertical space to realize the complete observation function. However, this causes the height of the cover and the whole machine to increase, and the center of gravity moves up. The working stability is reduced, there is a risk of tipping when the cover is opened, and the volume is increased. The space above the accommodating cavity that cannot be used for processing increases, resulting in waste of space and energy, and inconvenient storage when using the whole machine.

In summary, the existing technology has a complex structure and a single function, which only partially solves the defects of the existing problems. For example, when a user needs a large amount of steam to achieve the function of pure steam, the demand cannot be met.

Summary of the invention

The purpose of the present invention is to provide an air fryer that is convenient to process.

In order to solve at least one of the above technical problems, the present invention provides an air fryer, comprising a base and a cover connected to the base, the base is provided with a containing cavity, and the containing cavity is provided with a fryer The cover body is provided with a hot air assembly, the hot air assembly includes an air deflector, a hot air fan and a heating element, and a steam generating device is also provided in the base, the steam generating device includes a steam generator and a steam pipe The steam generator communicates with the containing cavity through a steam pipeline to pass steam into the containing cavity.

Preferably, the fryer assembly includes an inner pot and a stirring device arranged in the inner pot, and the air fryer further includes a driving device for driving the stirring device, and the driving device includes a driving source and a The drive shaft is hollow, and the steam pipeline communicates with the drive shaft and passes steam into the containing cavity through the hollow drive shaft.

Preferably, the drive shaft is located at the center of the bottom of the accommodating cavity, the drive shaft includes a drive section and a connection section that communicate with each other, the drive section is in communication with the steam generator, and the connection section is arranged on the inner pot And it is detachably connected with the driving section, and the connecting section drives the stirring device.

Preferably, the drive shaft further includes a one-way valve and a triggering portion respectively disposed on the drive section and the connecting section, and when the drive section and the connecting section are connected to each other, the triggering section triggers the one-way valve to conduct the drive section And connect the segment.

Preferably, the steam generating device further includes an air inlet cavity, the air inlet cavity is in communication with the steam generator through an air inlet, one end of the steam pipeline is inserted into the air inlet cavity to achieve conduction, and One end extends into the accommodating cavity, and the part of the steam pipeline located in the air inlet cavity is provided with a vent hole that leads the air inlet cavity and the steam pipeline.

Preferably, the steam pipeline penetrates the air inlet cavity and the protruding end is closed, and the vent is provided on a side wall of the steam pipeline located in the air inlet cavity.

Preferably, the air inlet cavity is disc-shaped, the air inlet is arranged along the radial direction of the air inlet cavity, and the center of the air inlet does not pass through the center of the air inlet cavity, the air inlet The center of the cavity is provided with an air outlet for inserting the steam pipeline, and the drive shaft is inserted into the air inlet cavity along the axial direction.

Preferably, a contraction step is provided in the air inlet cavity, and the contraction step extends into the internal space of the air inlet cavity, so that a buffer zone and a conduction area are formed inside the air inlet cavity, and the air inlet and the buffer The conduction area is communicated with the vent hole, and the equivalent cross-sectional area of the buffer zone is larger than the equivalent cross-sectional area of the conduction area.

Preferably, the fryer assembly includes an inner pot and a stirring device arranged in the inner pot, the stirring device includes a stirring paddle and a stirring blade, and the stirring paddle is provided with an air vent connecting the steam generator and the inner pot.

Preferably, the air outlet is arranged on the side wall of the upper end of the stirring paddle, the air outlet is provided in a plurality and evenly distributed, and the stirring blade is located below the air outlet in the axial direction.

Preferably, the cover body is hinged to the base, the cover body is provided with a transparent window, the center of the hot air assembly is offset from the center of the fryer assembly, and the distance from the center of the fryer assembly to the hinge center is The projection in the horizontal direction is L, and the distance from the center of the hot air assembly to the hinge center is projected in the horizontal direction as L1, L>L1, and the visible window is arranged around the hot air assembly and located above the fryer assembly.

Preferably, the cover is further provided with a steam discharge pipeline, the steam discharge pipeline includes an exhaust inlet, an exhaust pipe and an exhaust outlet, and the exhaust inlet is located on the top wall of the wind deflector.

Preferably, the horizontal projection of the distance between the exhaust inlet and the hinge center is L2, and L1>L2.

Preferably, the exhaust outlet is located on the top wall of the cover, and the distance between the exhaust outlet and the hinge center is projected as L3 in the horizontal direction, and L2>L3.

Preferably, the cover body is provided with a transparent window, the fryer assembly includes an inner pot, the visible window includes an outer window and an inner window attached to the inner pot, the outer window is inclined, and the inner The window extends horizontally, the outer window, the inner window and the cover are enclosed to form a visual cavity, and the outer window, the inner window and the cover are respectively provided with seals, so that the visual cavity forms a closed cavity.

Preferably, the inner window is attached to the upper end of the inner pot, the inner window is provided with a mounting hole, the air deflector penetrates the mounting hole to be connected with the inner window, and the air deflector is connected to the inner window. Seals are arranged between the inner windows.

Preferably, the cover body further includes a connecting piece, the outer window and the inner window are communicated through the connecting piece, a sealing ring is provided under the inner window, a flange is provided at the upper end of the inner pot, and the sealing ring is connected to the inner window. The flanging fits together.

The beneficial effects of the present invention are:

1. The easy-to-process air fryer of the present invention is additionally provided with a steam generator that provides steam to the containing cavity. Since the steam generator is set separately, it can control the steam volume, time, and operation of the steam generator. , And then the amount of steam entering the containing cavity, the time of entering the steam and the time of cutting off the steam are controllable, which can meet various needs such as pure steam and auxiliary steam. The steam generator is set up separately, without additional heating of the heating element in the containing cavity. It affects the normal operation of the air fryer; in addition, the steam generator is set separately, and the amount of water added is controllable, and even the external water source can be used to meet the demand for continuous water injection. Even if the steam needs to be temporarily increased during the processing process, just add water to the steam generator And turn on the steam generator to realize the steaming function without turning off and opening the air fryer for additional operations.

2. Set up a stirring device to meet the demand for stirring food during the work process. Further set the drive shaft for driving the stirring device to be hollow, the steam generator communicates with the drive shaft and the steam is passed into the inner pot through the hollow drive shaft. Relying on the existing structure in the existing product, it is only necessary to replace the drive shaft with a hollow The drive shaft can satisfy the function of injecting steam, the product changes are small, the parts to be replaced are small, and the product upgrade is convenient. The steam is transmitted by the drive shaft, which can realize the transmission of steam and power at the same time, meeting the multi-function requirements of the air fryer, and only need to set a common transmission path to realize the transmission of steam and power, with simple structural requirements. The steam depends on the drive shaft for transmission. Relying on the existing sealing structure, it can meet the requirements of the drive structure and steam transmission at the same time. The technical requirements are simple. Since the sealing structure technology of the drive shaft itself is mature, it is particularly important for the sealing of the whole machine. The sealing requirements of steam transmission are greatly reduced, and the reliability of steam transmission is guaranteed; steam transmission in the drive shaft can better prevent steam from entering the drive system, especially the drive motor, so as to better solve the problem of steam leakage.

3. Since the stirring device is usually set at the bottom of the inner pot to stir the ingredients in the inner pot, the drive shaft is set at the center of the bottom of the inner pot. In this way, the drive source and the drive shaft are set on the base, which is very important for the transmission path of the drive shaft. The requirement is the shortest, and the steam transmission path located in the drive shaft is also relatively short, which facilitates the rapid transmission of steam and guarantees the reliability of the seal. Set the drive shaft at the center of the bottom of the inner pot, and the steam outlet is usually set at the center of the bottom of the inner pot, so that the steam enters the inner pot from the bottom of the inner pot, and the steam itself rises, conforming to the characteristics of the steam itself, and can improve the steam processing Efficiency, set in the center of the inner pot, stirring and steam are evenly set in the whole inner pot wind, there will be no dead corners, and the processing is even. The drive shaft is set as a drive section and a connecting section. The drive section is connected to the machine base. The connecting section is set on the inner pot so that the connecting section can be disassembled and assembled together with the inner pot. A sealing structure is provided between the connecting section and the inner pot. It can ensure the seal between the drive shaft and the inner pot and prevent steam from entering the machine base from the connection between the drive shaft and the inner pot. In addition, the connecting section is arranged on the inner pot. After the air fryer is processed, the connecting section and the stirring device can be disassembled and picked up along with the inner pot without disassembling the drive shaft and the stirring device, which is convenient for users to operate and use.

4. The drive shaft is equipped with a one-way valve and a trigger part, so that only after the drive section and the connecting section are installed in place, the steam delivery pipeline can conduct and realize steam transmission. When the connecting section is not installed, the one-way valve is not triggered. Steam will be transmitted into the inner pot, so when the steam function is not needed, no trigger structure is installed, and no steam will be generated. Even if the user accidentally triggers the steam generation function, no steam will enter the inner pot, which is effective Ensure the reliability of steam use. Further, the sealing element is arranged between the drive shaft and the air inlet cavity, which can further improve the reliability of the seal between the drive shaft and the air inlet cavity, instead of relying solely on the mechanical structure between the drive shaft and the air inlet cavity. In addition, the sealing element is also convenient for disassembly between the drive shaft and the air inlet cavity.

5. The air inlet cavity is set, and the steam pipeline can be connected by inserting, which ensures that the steam is transmitted by the hollow steam pipeline. At the same time, the steam pipeline can also be detached. In this way, for the cleaning of the steam pipeline, Maintenance and so on bring greater convenience. At the same time, for different products and different functional requirements, different steam lines can be replaced to achieve multi-functional purposes. For example, in a function that does not require stirring, only a hollow tube with a steam pipeline can be used to achieve steam transmission to meet the functional requirements of steaming. The hollow tube is no longer needed to achieve the driving function. Of course, the universal drive The shaft realizes the steam transmission, and the steaming function can be realized by controlling the driving source not to work in the program; for functions with different steam requirements, steam pipes with different transmission inner diameters can be replaced to meet the corresponding functions. When the steam function is not needed, a non-hollow steam pipe can be set to close the steam pipe to prevent the steam from leaking from the source. At the same time, the air inlet cavity is set, especially the air inlet cavity and the hollow steam pipeline have obvious differences in cross section. In this way, the steam generated by the steam generator will be buffered in the air inlet cavity and re-enter the air inlet cavity. It is internally gathered and passed into the steam pipeline. In this way, the possible pressure changes of the steam generator, especially the unstable pressure, will be relieved in the intake cavity, and a stable pressure steam is formed and transmitted into the containment cavity through the steam pipeline. Inside. At the same time, the water vapor or coalesced water droplets generated by the steam generator itself will also condense in the air inlet cavity without being further transmitted into the containing cavity, ensuring the purity of the steam entering the containing cavity and ensuring reliable food processing.

6. The drive shaft penetrates the air inlet cavity and the protruding end is closed. The drive source can drive the drive shaft at the lower end of the drive shaft. The structure is simple and the connection is convenient. The vent hole is arranged on the side wall of the drive shaft. When steam enters the drive shaft from the vent hole, it will change direction at the vent hole. At the same time, due to the swirling flow generated by the steam in the intake cavity, the steam can be concentrated in the drive shaft , The steam transmission efficiency in the drive shaft is high, and the transmission is stable and reliable, which makes the processing of the air fryer stable and reliable.

7. The air inlet cavity is set in a disc shape. On the one hand, the stability of the steam transmission pressure can be improved by changing the effective cross-sectional size of the steam transmission path. On the other hand, the disc-shaped air inlet cavity has the air inlet from the side. The wall enters and the air outlet is set in the center, which is conducive to the overall flow of steam. The steam gathers from the side wall to the center, which is also conducive to the stability of steam pressure. Furthermore, the disc-shaped air inlet cavity does not occupy more in the axial direction. The space is fully utilized for the large radial size of the air fryer itself, which will not change the size of the existing air fryer, and prevent the user satisfaction from being too large. The air inlet is arranged radially along the air inlet cavity, and the extended line of the air inlet center does not pass through the air inlet cavity center, and the drive shaft is inserted into the air inlet cavity from the axial direction, so that the air inlet enters into the air inlet cavity The steam will not be directly discharged from the air outlet, but will collide with the air inlet cavity on the path of the air inlet. The unstable steam directly generated by the steam generator will fully release the pressure in the air inlet cavity, and After re-accumulation in the air inlet cavity, it is discharged from the air outlet to form a stable pressure output. The drive shaft is inserted into the intake cavity from the axial direction, so that the direction of the steam changes when it enters the drive shaft. In particular, the steam entering the intake cavity will form a swirl in the intake cavity, and the center of the swirl That is, the center of the air inlet cavity, and the drive shaft is inserted from the center of the air inlet cavity, and the swirling steam is discharged from the drive shaft after gathering, and will not remain in the air inlet cavity, so that the overall steam transmission path is balanced and the transmission is stable and reliable.

8. Set a contraction step in the air inlet cavity to form a buffer zone and a conduction zone in the air inlet chamber, and the buffer zone's grade cross-sectional area is larger than the conduction zone grade cross-sectional area, so that the steam entering from the air inlet is generated in the buffer The pressure is relieved in the zone, and at the same time, the water droplets remaining in the steam will condense in the buffer zone. After the pressure is released by the buffer zone, the steam enters the conduction zone again. Due to the change of the cross section between the buffer zone and the conduction zone, the pressure of the steam entering the conduction zone increases, which is conducive for the steam to quickly enter the drive shaft from the ventilation hole and raise the steam. Reliability of transmission.

9. The stirring device is equipped with a stirring paddle. The stirring paddle is set on the upper end of the drive shaft to facilitate the disassembly and assembly of the stirring device. For functions that require a stirring device, a stirring device can be installed. When the stirring function is not required, the stirring device may not be installed and used Convenient. The stirring paddle is provided with steam that communicates the inside of the drive shaft and the inside of the inner pot, so that the steam is discharged from the stirring device, and then directly contacts the food materials, so as to process the food materials with high processing efficiency.

10. The vent hole is arranged on the side wall of the stirring blade and above the stirring blade. During the rotation of the stirring blade, the vent hole can continuously and uniformly pass steam into the inner pot, and the vent hole is located above the stirring blade, and the food does not touch the vent hole , It can effectively prevent the air outlet from being blocked by the food, and ensure the reliability and stability of the steam transmission pipeline.

11. Move the center of the hot air assembly away from the center of the fryer assembly, especially the distance from the center of the hot air assembly to the hinge center is less than the distance from the center of the fryer assembly to the hinge center, so that the distance between the center of the hot air assembly and the outer edge of the fryer assembly will increase, and the window will be visible. When the hot air component is arranged around the hot air component, the distance between the visible window from the outer edge of the hot air component to the outer edge of the frypot component increases, and the visible area increases. In this way, the ratio of the hot air component to the frypot component is ensured. The effective use of the window area improves the visual effect. Moreover, this arrangement directly increases the area of the visible window in the projected section, instead of using the angle of space to increase the viewing angle. The user can directly observe the state of the ingredients in the fryer assembly through the visible window without changing the angle. Observed. Due to the increase in the actual observation area of the viewing window, there is no need to increase the height of the cover to increase the vertical observation area. The height of the cover in the vertical direction can be reduced, which reduces the center of gravity of the cover and the whole. The handling and working stability have been greatly improved. The distance between the center of the hot air assembly and the hinge center is reduced, which is also beneficial to control the center of gravity of the cover and the whole machine. When the cover is opened or buckled, the center of the hot air assembly has a small rotation radius relative to the hinge center, and the linear speed of rotation is small. The torque and torque are small, and the user can easily control it with a small force. When the cover is in the open state, the distance between the center of the hot air assembly and the hinge center is small, and the height from the console is also small enough. Since most of the mass of the cover is concentrated in the hot air assembly, the center of gravity of the cover also shifts downward. This further improves the stability of the whole machine. The steam component is further provided, so that the air fryer has the steaming function at the same time, which expands the use function of the air fryer, and adding the steaming function does not require a special increase in product volume, the function is increased quickly, and the product practicability is better. Set the air inlet of the steam delivery pipeline away from the center of the hot air assembly. First, the steam enters the fryer assembly from the bottom wall, and the characteristics of the steam itself will move upwards. In this way, the steam entering the fryer assembly can quickly diffuse in the fryer assembly to fill the entire fryer assembly, and the processing efficiency is high; at the same time, The steam will not directly rise and impact the hot air components to prevent the steam from affecting the hot air components. Using the eccentric air flow formed by the hot air components, the steam will flow quickly along the air flow in the inner pot to heat the food, and the heating efficiency is high.

12. Set up a discharge pipeline on the cover. The exhaust inlet is located on the top wall of the air deflector. The steam is discharged from the discharge pipeline after rising and processing, which conforms to the direction of the natural flow of steam, even when the product only uses steam When the function of the hot air component does not work, the heating element and fan will not drive the internal heating and turbulence of the fryer component. The heat and flow direction of the steam itself can also satisfy the product’s support for the steaming function, and the heating efficiency can be guaranteed. Furthermore, when the fan is working, the air and steam at the exhaust inlet will be blown away, and the compressed steam will circulate more inside the fryer assembly, which is equivalent to increasing the pressure of the steam inside the fryer assembly. To a certain boost effect, thereby further improving the steam heating efficiency.

13. The distance between the exhaust inlet and the hinge center is less than the distance between the center of the hot air assembly and the hinge center, so that from the front side of the air fryer to the hinge center, the center of the fryer assembly (including the steam inlet) and the center of the hot air assembly are arranged in sequence And the exhaust inlet, the steam from the inlet to the outlet, can stay in the fryer assembly for enough time, fully ensuring the steam heating efficiency.

14. The exhaust outlet is more inclined to the hinged shaft than the exhaust inlet. After the steam is discharged from the exhaust outlet, it is far away from the user to prevent the exhaust steam from affecting or even scalding the user. This not only ensures the heating efficiency of the air fryer, but also makes the user Experience comfort is greatly improved.

15. At the same time, an outer window and an inner window are arranged, and the outer window is inclinedly arranged, and the inner window extends laterally to form a visual cavity surrounded by the cover. Extending the inner window horizontally does not occupy space in the vertical height, and also makes the overall height of the cover small enough to fully compress the height of the cover, that is, to ensure that the center of gravity of the cover and the whole machine moves down. Improve stability; at the same time, it can also reduce the size of the cover and the whole machine, avoiding the whole machine from occupying more space, which is very convenient for consumers to use and store. The visual cavity is provided to block the heat exchange between the inside and outside of the fryer assembly, avoiding the external temperature of the cover from being too high, and preventing damage to the user. At the same time, the visual cavity can also avoid condensation caused by the internal and external temperature, and avoid the failure to observe the inside of the fryer assembly due to condensation. The inclined setting of the outer window does not affect the setting of the inner window and the bottom surface of the cover, and will not increase the height of the cover and the whole machine. The inclined outer window increases the volume of the visual cavity and has better temperature insulation performance. Better results.

16. The inner window is attached to the upper end of the inner pot, which can further reduce the height of the window and the lid, further reduce the excess heating space above the fryer assembly, and make the product size as small as possible to meet consumers' pursuit of small size, control and The need to move easily. The installation hole is set directly on the inner window. The wind deflector penetrates the installation hole and is connected to the inner window. The wind deflector can directly act on the inside of the inner pot to ensure efficient heating and shorten the path of hot air flowing to the food. When monitoring the inner pot At temperature, the distance from the heating element is shorter, the monitoring is more accurate, and at the same time, it is more conducive to the control of the heating element. A seal is arranged between the wind deflector and the inner window to prevent hot air, especially steam, from entering the cover through the gap between the wind deflector and the inner window, and to prevent the components inside the cover from being damaged by high temperature or steam.

17. The inner window and the outer window are connected by a window connector, which ensures the reliability of the window connection. In particular, the inner window is set to a glass material that is more hygienic and convenient to clean, and the outer window is set to a plastic material that is more convenient to make curved shapes, and connected by connecting pieces to avoid the different effects of different materials. A sealing ring is arranged under the inner window, and a flange is arranged on the upper end of the inner pot to further improve the seal between the inner window and the inner pot.

Description of the drawings

The present invention will be further explained below in conjunction with the drawings:

Fig. 1 is a schematic structural diagram of the first embodiment of the air fryer of the present invention.

Figure 2 is a schematic diagram of the drive shaft structure of the first embodiment of the air fryer of the present invention.

Fig. 3 is an exploded schematic view of the drive shaft structure of the first embodiment of the air fryer of the present invention.

Fig. 4 is a structural diagram of the lower cover of the air inlet cavity of the air fryer according to the first embodiment of the present invention.

5 is a schematic diagram of the connection structure between the air intake cavity and the drive shaft of the air fryer according to the first embodiment of the present invention.

Fig. 6 is a partial enlarged view of part D in Fig. 5.

Fig. 7 is a cross-sectional view of the drive shaft structure of the air fryer according to the first embodiment of the present invention.

Fig. 8 is a schematic diagram of the connecting section of the air fryer according to the first embodiment of the present invention.

Fig. 9 is a structural diagram of the valve body of the check valve of the first embodiment of the air fryer of the present invention.

10 is a schematic diagram of the connecting structure of the driving section and the connecting section of the air fryer according to the first embodiment of the present invention.

11 is a cross-sectional view of the connecting section structure of the air fryer according to the first embodiment of the present invention.

Fig. 12 is a structural diagram of the connecting section of the air fryer according to the first embodiment of the present invention.

13 is a schematic diagram of the structure of the stirring device and the inner pot of the first embodiment of the air fryer of the present invention.

Fig. 14 is a partial enlarged schematic diagram of part A in Fig. 1.

Fig. 15 is a partial enlarged schematic diagram of part B in Fig. 1.

Figure 16 is a schematic view of the structure of the air fryer connector of the present invention.

Figure 17 is a schematic diagram of the horizontal projection structure of the air fryer of the present invention.

Figure 18 is a schematic diagram of the first position of the air fryer of the present invention.

Figure 19 is a schematic diagram of the second position of the air fryer of the present invention.

Fig. 20 is a partial enlarged schematic diagram of part C in Fig. 1.

Figure 21 is a schematic view of the drive shaft structure of the second embodiment of the air fryer of the present invention.

Figure 22 is a schematic diagram of the air intake cavity of the third embodiment of the air fryer of the present invention.

The names of the parts marked in the figure are as follows:

10. Cover; 100. Hinge shaft; 111. Air deflector; 1110. Mounting ring; 1111. First seal; 1112. Exhaust hole; 112. Hot air fan; 113. Heating element; 114. Fan motor; 115. Cold air fan; 116. Protective cover; 1221. Outer installation part; 1222. Internal installation part; 1223. Fixed rib; 1224. Fixed platform; 131. Control circuit board; 132. Air inlet; 133. Air outlet; 134. Control area 14. Motor bracket; 140. Positioning ring; 141. Fixed column; 142. Second seal; 15. Machine seat; 150. Receiving cavity; 1501. Through hole; 151. Inner pot; 1512. Connection hole; 152. Frying basket; 2. Air inlet cavity; 20. Air inlet; 21. Lower cover of air inlet cavity; 211. Transmission hole; 212. Ring rib; 213. Seal groove of lower cover; 214. Seal groove of air inlet cavity; 215 Drive source fixing frame; 216. Baffle; 22. Air inlet cavity upper cover; 221. Air outlet; 222. Upper cover annular protrusion; 223. Upper cover sealing groove; 23. Air inlet cavity lower seal; 231. Seal lip; 232. Seal ring rib; 24. Air inlet cavity seal; 25. Air inlet cavity upper seal; 26. Buffer zone; 27. Conduction area; 28. Air inlet grille; 3. Drive section; 30. Vent hole; 31. Lower section of the driving section; 310. Positioning hole; 311. Seal groove of the lower section; 312. Lower section ring rib; 313. Lower connecting plate; 314. Driving section wheel; 32. Upper section of the driving section; 321. Outer flower Key teeth; 322. Valve fixing ring; 323. Air hole; 324. Upper connecting plate; 325. Upper sealing groove; 326. Seal groove ring rib; 33. Driving section gasket; 34. One-way valve body; 341. Valve Spool; 342. Spool mounting groove; 343. Spool positioning ring; 344. Spool groove; 35. Spring; 36. One-way valve seal; 37. Drive section seal; 38. Shaft hole; 4. Connection Section; 41. Connecting section body; 411. Upper connecting body; 412. Lower connecting body; 413. Internal spline teeth; 414. Trigger part; 4140. Air passage; 415. Limit ring rib; 416. Connecting sealing groove 42. Lower fixing part; 421. Lower support ring; 422. Lower fixing ring; 43. Upper fixing part; 431. Upper limit ring; 432. Upper fixing ring; 44. Fixing part seal; 45. Connecting section seal 5. Stirring device; 50. Stirring paddle; 51. Stirring blade; 52. Air outlet; 6. Steam generator; 61. Steam pipe; 611. Steam pipe sealing ring; 62. Water tank; 63. Exhaust inlet; 64. .Exhaust outlet; 641. Pressure relief chamber; 642. Pressure relief cover; 643. Steam outlet; 65. Exhaust pipe; 7. Visual window; 70. Visual cavity; 71. Internal window; 710. Mounting hole; 711 Fixing plate; 7110. Fixing ring; 712. Third seal; 713. Fourth sealing ring; 7130. Sealing lip; 72. Outer window; 721. Fixed counterbore; 7 22. Fixing groove; 723. Mounting edge; 73. Connector; 731. Upper card slot; 732. Lower card slot; 733. Support rib; 734. Stud; 8. Drive source; 81. Drive shaft hole; 82 .Transmission belt.

Detailed ways

In order to explain the overall concept of the present application more clearly, a detailed description will be given below by way of example in conjunction with the accompanying drawings of the specification.

In the following description, many specific details are set forth in order to fully understand this application. However, this application can also be implemented in other ways different from those described here. Therefore, the scope of protection of this application is not covered by the specific details disclosed below. Limitations of the embodiment.

In addition, in the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal" "," "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings It is only for the convenience of describing the application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. The positional relationship of "upstream" and "downstream" is based on the positional relationship when the fluid flows normally.

In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first" and "second" may explicitly or implicitly include one or more of these features. In the description of this application, "multiple" means two or more than two, unless otherwise specifically defined.

In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and other terms should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection , Or integrated; it can be a mechanical connection, it can be an electrical connection, it can also be communication; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal communication of two components or the interaction relationship between two components . For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

In this application, unless expressly stipulated and defined otherwise, the “on” or “under” of the first feature on the second feature may be in direct contact with the first and second features, or indirectly through an intermediary. contact. In the description of this specification, descriptions with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean specific features described in conjunction with the embodiment or example , The structure, materials, or characteristics are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

The structure of the easy-to-process air fryer of the present invention is shown in Figures 1-23. It includes a cover 10 and a base 15. The cover 10 and the base 15 are hinged through a hinge shaft 100 so that the cover 10 can be It is rotatably arranged above the base 15. The base 15 is provided with an accommodating cavity 150. The accommodating cavity 150 is provided with a fryer assembly. The fryer assembly includes an inner pot 151. According to different processing requirements, the food can be directly placed in the inner pot 151, and the inner pot 151 is also The frying basket 152 or the stirring device 5 can be provided, or the frying basket 152 and the stirring device 5 can be provided at the same time, and a driving device for driving the stirring device is also provided in the base 15. Of course, for the ingredients that only need the steaming function, the fryer assembly may not be placed, and the ingredients can be directly placed in the containing cavity. The cover 10 includes a mounting part, and a hot air assembly is arranged in the mounting part. The hot air assembly includes an air deflector 111, a heating element 113, a hot air fan 112, and a fan motor 114. The hot air fan 112 and the heating element 113 are located on the air deflector. Below 111, the hot air fan 112 is arranged above the heating element 113, or the heating element 113 is arranged around the hot air fan 112. The air guide plate 111 isolates the heating element 113 and the hot air fan 112 from the inside of the cover 10 to prevent the hot air blown by the hot air fan 112 from being directly injected into the inside of the cover 10. When the cover 10 is fastened to the base 15, the heating element 113 and the hot air fan 112 are located above the accommodating cavity 150 and the inner pot 151, the heating element 113 generates heat, and the hot air fan heats the heating element 113 The generated heat is blown to the inner pot 151 to heat the food in the inner pot. At the same time, the heating element can also bake the food at the same time through heat radiation.

The air fryer also includes a steam generating device. The steam generating device includes a steam generator 6 and a steam pipeline. The steam generator passes steam into the containing cavity through the steam pipeline. In this way, the steam enters the accommodating cavity from the bottom of the accommodating cavity, and the steam naturally rises and flows. In this way, the flowing steam flows through the food material to process the food material, and the air intake from the bottom can improve the efficiency of steam processing.

It is understandable that the cover can also be snap-fitted or rotated and snap-fitted to the base.

By adding a steam generator, the air fryer of the present invention can realize the functions of combining pure roasting, pure steaming, and steaming and roasting. To achieve pure roasting, just turn on the heating element and the hot air fan to form a circulating hot air in the inner pot for heating and grilling. To realize the pure steaming function, just turn on the steam generator and inject steam into the inner pot through the drive shaft to realize the steaming function. To realize the steaming and roasting function, only need to turn on the heating element, hot air fan and steam generator at the same time to realize the functions of heating and steaming at the same time. At the same time, the drive shaft can drive the stirring device to stir the food in the inner pot when the function is required, so as to make the processing more uniform.

Example one:

As a first embodiment of the easy-to-process air fryer of the present invention, as shown in Figures 1-20, the air fryer further includes an air intake cavity 2 communicating with the steam generator 6 and a drive shaft, the drive shaft being hollow Is arranged to form a steam pipeline, the air inlet cavity 2 is communicated with the steam generator 6 through an air inlet 20, and the drive shaft is inserted into the air inlet cavity 2 to achieve conduction. A water tank 62 is also provided in the machine base 15, and the water tank 62 is connected with the steam generator and provides a water source for the steam generator. The water tank 62 is located on the front side of the bottom of the machine base, and the water tank 62 is located outside the accommodating cavity 150 and partially wraps the accommodating cavity. In this way, the heat generated outside the accommodating cavity is absorbed by the water tank instead of being transferred to the user, and the user experience is better. At the same time, the water in the water tank is heated and the steam generator is used to quickly generate steam.

As shown in Figures 1 and 2, the drive shaft is arranged at the center of the bottom of the accommodating cavity, and the bottom wall of the accommodating cavity is provided with a through hole 1501. The drive shaft extends out of the housing of the base through the through hole 1501 and extends into the housing. In the cavity, the drive shaft includes a drive section 3 and a connecting section 4 that are connected to each other. The drive section 3 is inserted into the air inlet cavity 2, and the connecting section 4 is disposed on the inner pot 151. The connecting section 4 The stirring device 5 is further driven. For the existing air fryer, the usual technology is to set the drive shaft at the center of the bottom of the inner pot, so that the stirring device can easily stir the ingredients in the inner pot, and the present invention does not need to change the existing drive shaft and the inner pot. The structure is set. On the basis of the existing structure, the drive shaft is hollowed to meet the simultaneous realization of power transmission and steam transmission and meet the multi-functional requirements of the air fryer. In addition, setting the drive shaft at the center of the bottom also facilitates the uniform distribution of steam in the inner pot, and makes the processing more uniform and reliable for the steaming function.

As shown in Figures 2 and 3, the air intake chamber 2 is in the shape of a disc. The air intake chamber 2 includes a lower air intake chamber cover 21 and an upper air intake chamber cover 22. The upper cover 22 of the air cavity is buckled with each other, and an air inlet space is formed inside. The air inlet 20 is arranged on the side wall of the lower cover 21 of the air inlet cavity, and the air inlet 20 is located at the bottom of the air inlet cavity 2, so that the air inlet 20 realizes air intake from the bottom of the air inlet space. The upper cover 22 of the air inlet cavity is provided with an air outlet 221 in the center, and the lower cover 21 of the air inlet cavity is oppositely provided with a transmission hole 211. The driving section 3 is inserted into the air inlet cavity 2 through the air outlet 221 and is driven by the transmission hole 211. Extend the air inlet cavity 2 so that the drive section 3 penetrates the air inlet cavity 2, the lower end of the drive section 3 is closed, and the side wall of the drive section 3 located in the air inlet cavity 2 is provided with a communicating air inlet cavity 2 and The vent 30 inside the driving section 3, the lower end of the driving shaft 3 is in transmission connection with the driving device, and the driving device includes a driving source 8, so that the driving source 8 is used to drive the driving shaft 3. Preferably, the driving source 8 is a driving motor , The power shaft of the driving source 8 is a motor shaft. The driving section 3 is further connected with the connecting section 4 and drives the stirring device 5 through the driving section 4.

As shown in FIGS. 3-6, the inner wall of the lower cover 21 of the air intake chamber is provided with an upwardly extending annular rib 212, the annular rib 212 is arranged around the transmission hole 211, and the annular rib 212 forms a lower cover The sealing groove 213 is provided with an air inlet cavity lower sealing member 23 at the lower cover sealing groove 213. When the driving section 3 passes through the air inlet cavity 2 through the transmission hole 211, the air inlet cavity lower sealing member 23 is sleeved It is outside the driving section 3 and is respectively attached to the lower cover 21 and the driving section 3 of the air intake chamber for sealing the lower cover 21 and the driving section 3 of the air intake chamber. As shown in FIG. 6, the lower sealing member 23 of the air intake cavity is provided with a sealing lip 231 that is attached to the driving section 3, a sealing ring rib 232 that is attached to the surface of the sealing groove 213 of the lower cover, and a sealing lip 231 The sealing ring rib 232 can increase the abutment area of the lower sealing member 23 of the air intake cavity with the driving section 3 and the sealing groove 213 of the lower cover, and improve the sealing performance. By setting the annular ribs, on the one hand, the fluid area inside the air inlet cavity can be changed. On the other hand, the annular ribs naturally form grooves for installing the seals, which improves the structure and space utilization, and the annular ribs extend inward , Will not increase the volume occupied by the air intake cavity inside the air fryer, and can also improve the reliability of the seal.

The inner wall of the upper cover 22 of the air intake chamber is provided with an upper cover annular protrusion 222 extending downward, the upper cover annular protrusion 222 is arranged around the air outlet 221, and the upper cover annular protrusion 222 is arranged opposite to the annular rib 212, The ring-shaped rib 212 and the upper cover ring-shaped protrusion 222 form a buffer zone 26 and a conduction area 27 in the air inlet chamber 2. The buffer zone 26 is in communication with the air inlet 20, and the conduction zone 27 is in communication with the air inlet 20. The air holes 30 are connected. The annular protrusion 222 of the upper cover forms an upper cover sealing groove 223 on the outer wall of the upper cover of the air inlet cavity. The upper cover sealing groove 223 is provided with an upper air inlet cavity sealing member 25, and the driving section 3 is inserted into the air outlet 221. When the air inlet chamber 2 is used, the upper air inlet chamber seal 25 is sleeved outside the driving section 3, and is respectively attached to the upper air inlet chamber cover 22 and the driving section 3, for matching the upper air inlet chamber cover 22 and Drive section 3 is sealed. Preferably, the upper seal 25 of the air inlet cavity and the lower seal 23 of the air inlet cavity have the same structure, so that during production and assembly, there is no need to distinguish the upper and lower seals, which improves the production efficiency of the product.

The surface where the lower cover 21 of the air inlet cavity and the upper cover 22 of the air inlet cavity are fixedly connected is provided with an air inlet cavity sealing groove 214, and the air inlet cavity sealing member 24 is provided at the air inlet cavity sealing groove 214. When 21 is engaged with the upper cover 22 of the air inlet cavity, the air inlet cavity sealing member 24 is attached to the lower cover 21 and the upper cover 22 of the air inlet cavity respectively to seal the air inlet cavity 2. The inner wall of the lower cover 21 of the air inlet cavity is also provided with a baffle 216, which is arranged opposite to the air inlet 20. When steam enters the air inlet from the air inlet 20, it will directly impact the baffle 216, thereby further Release the impact force of the steam itself to ensure the stability of the steam pressure in the intake cavity.

As shown in Figures 3-9, the driving section 3 includes a driving section lower section 31 and a driving section upper section 32. The driving section lower section 31 and the driving section upper section 32 are fixedly connected, and the driving section lower section 31 penetrates the air inlet cavity 2 and In communication with the air inlet cavity 2, the upper section 32 of the driving section passes through the housing of the base 15 and extends into the containing cavity 150. The bottom end of the lower section 31 of the driving section is also provided with a positioning hole 310 connected to the driving source 8. Preferably, the motor shaft of the drive source 8 is inserted into the positioning hole, the motor shaft is provided with a drive shaft hole 81, and a drive pin is provided at the drive shaft hole 81 and the positioning hole 310 to fix the drive source and the drive section. . The outer wall of the lower cover 21 of the air intake chamber is also provided with a driving source fixing frame 215 for fixing the driving source 8. Generally, the driving source 8 is fixed to the driving source fixing frame 215 by screws. In this way, the drive source is directly fixed on the outer side wall of the air inlet cavity, and the drive source and the air inlet cavity can be set as a complete set of components, which facilitates the production and assembly of the drive shaft and the air inlet cavity; the drive source directly drives the drive shaft without additional The transmission structure has high transmission efficiency.

The side wall of the lower section 31 of the driving section located in the air inlet cavity 2 is provided with vent holes 30. The vent holes 30 are provided in multiple and are evenly distributed along the radial direction of the lower section 31 of the driving section, so that even if the drive shaft is rotating At this time, the steam that enters the drive shaft from the air intake cavity also enters uniformly, without the problem of excessive air intake from a certain direction.

The upper end of the lower section 31 of the driving section is provided with a lower connecting plate 313, the lower end of the upper section 32 of the driving section is provided with an upper connecting plate 324, and the upper surface of the lower connecting plate 313 is also provided with a lower sealing groove 311, and the lower section is sealed The groove 311 is provided with a driving section sealing gasket 33, the lower connecting plate 313 and the upper connecting plate 324 are connected by screws to fix the driving section 3, and the driving section sealing gasket 33 is attached to the lower connecting plate respectively 313 and the upper connecting plate 324 to close the driving section. The inner wall of the lower section 31 of the driving section extends upward to form a lower ring rib 312, which can be inserted into the cavity of the upper section 32 of the driving section. Set the drive section as two separate sections. The length of each section does not need to be set too long to prevent the internal hollow size of the drive section from being difficult to produce and process. At the same time, the drive section also needs to be set with a check valve, which can be set to two sections. Realize different functions separately, and then assemble the two to form the driving section after combining separately, which is convenient and quick. The lower ring rib is further set, and the lower ring rib is inserted into the upper section of the driving section, which increases the connection between the upper section of the driving section and the lower section of the driving section, so that the sealing performance between the driving sections is improved, and the steam is generated by the driving section. The lower section flows upward, and naturally follows the ring ribs of the lower section into the upper section of the driving section, which can prevent steam from leaking out through the gap between the two sections.

The drive shaft further includes a one-way valve and a trigger part located in the drive section 3 and the connecting section 4, wherein the one-way valve is arranged on the drive section 3. The inner wall of the upper section 32 of the driving section is provided with a valve fixing ring 322 extending inward, and the valve fixing ring 322 has an air passage hole 323 in the center, and steam can pass through and be transmitted through the air passage hole 323. A one-way valve is provided at the valve fixing ring 322, and the one-way valve includes a one-way valve body 34, a spring 35 and a one-way valve seal 36. The one-way valve body 34 penetrates the air passage 323, and the spring 35 and the one-way valve seal 36 are located on both sides of the valve fixing ring 322, respectively. The one-way valve body 34 includes a spool post 341, a spool installation groove 342 is provided at the lower end of the spool post 341, the one-way valve seal 36 is disposed in the spool installation groove 342, and the valve The upper end of the stem 341 is provided with a valve core positioning ring 343, the spring 35 can abut against the valve core positioning ring 343 and drive the valve core column 341, and further drive the one-way valve seal 36 to close the air passage 323, the spool column 341 is further provided with a spool groove 344, the spool groove 344 penetrates the spool positioning ring 343, and the driving section 3 is conducted when the one-way valve seal 36 opens the air hole 323. By setting a one-way valve and setting a triggering part on the connecting section, the drive shaft is turned on only when the connecting section is installed. This prevents the steam generator from generating steam into the containing cavity when the steam generator switch is triggered by mistake, ensuring Reliable food processing.

The upper section 32 of the driving section is inserted into the connecting section 4 and is in transmission communication with the connecting section 4. A transmission spline is provided between the upper section 32 of the driving section and the connecting section 4, wherein the upper end of the upper section 32 of the driving section is provided on the outer side wall There are external spline teeth 321. The external spline teeth 321 are ribs extending axially along the upper section 32 of the driving section, and a plurality of ribs are uniformly distributed. An upper sealing groove 325 is further provided at the upper end of the outer spline tooth 321, a driving section seal 37 is provided at the upper sealing groove 325, and a sealing groove ring rib 326 is also provided on the inner wall of the upper sealing groove 325. The groove ring rib 326 is used to limit the driving section sealing member 37 to prevent the driving section sealing member 37 from falling off. By setting the spline, the plug-in fit between the driving section and the connecting section is simple, which is convenient for the disassembly of the connecting section; a sealing structure is set at the upper end of the driving section to improve the sealing performance between the driving section and the connecting section, and further prevent the steam leakage of the drive shaft .

As shown in Figures 3-12, the bottom center of the inner pot 151 is provided with a connecting hole 1512, and the connecting hole 1512 is arranged opposite to the through hole 1501. The connecting section 4 includes a connecting section body 41, a lower fixing member 42 and an upper fixing member 43. The connecting section body 41 penetrates the connecting hole 1512, and the connecting section body 41 is rotatably fixed at the connecting hole 1512 by the lower fixing member 42 and the upper fixing member 43. The lower fixing member 42 includes a lower supporting ring 421 and a lower fixing ring 422, and the upper fixing member 43 includes an upper limit ring 431 and an upper fixing ring 432, wherein the lower fixing ring 422 and the upper fixing ring 432 are arranged oppositely, The inner pot 151 is sandwiched between the two, and a fixing member sealing member 44 is also provided between the upper fixing ring 432 and the inner pot 151. The connecting segment body 41 is placed on the lower support ring 421 and limited in the axial direction. The connecting segment body 41 is inserted into the upper limit ring 431 along with the lower support ring 421 and limited in the radial direction, so that it is now fixed After the member 42 is fixedly connected to the upper fixing member 43, the connecting section body 41 can only rotate in the axial direction.

The connecting section body 41 is further divided into an upper connecting body 411 and a lower connecting body 412, wherein the upper connecting body 411 is connected to the stirring device and used to drive the stirring device, and the lower connecting body 412 is in communication with the driving section 3. The inner wall of the lower connecting body 412 is provided with inner spline teeth 413. The inner spline teeth 413 are ribs arranged along the axial direction on the inner wall of the lower connecting body 412, and are provided in multiples. Preferably, the inner spline teeth and The number of external spline teeth is the same. The inner wall of the lower connecting body 412 is also provided with a triggering portion 414, the triggering portion 414 includes a ring rib arranged inside the lower connecting body 412 and extending downward, and the triggering portion 414 can push the one-way valve body 34 to open the one-way valve, The side wall of the trigger part 414 is also provided with an air passage 4140 for steam to pass through. The upper end of the outer side wall of the lower connecting body 412 is further provided with a limiting ring rib 415, the limiting ring rib 415 is rotatably mounted on the lower support ring 421, and the limiting ring rib 415 further forms a connecting sealing groove 416 A connecting section sealing member 45 is provided at the connecting sealing groove 416, and the connecting section sealing member 45 can be attached to the inner wall of the upper limit ring 431 to seal the connecting section and the inner pot. By setting the lower fixing part and the upper fixing part, the connecting section can be rotatably fixed on the inner pot. In this way, when the inner pot is installed, the connecting section and the driving section can be connected, and after the processing is completed, take it directly Under the inner pot, the connecting section is separated with the inner pot to facilitate the operation of the inner pot and the ingredients in the inner pot.

As shown in FIGS. 2-13, the stirring device 5 includes a stirring blade 50, a stirring blade 51 and an air outlet 52, and the stirring blade 51 is arranged on the side wall of the stirring blade 50. Preferably, the mixing blade 51 is set in one piece. This is mainly because the air fryer usually only needs to flip the ingredients during the working process, and the required torque and speed are not high, and a single blade can meet the mixing requirements. . The stirring paddle 50 is detachably connected to the connecting section 4. Preferably, the upper connecting body 411 is configured as a flat shaft, and the inner wall of the stirring paddle 50 is provided with a limiting structure that cooperates with the flat shaft. The air outlet holes 52 are arranged on the side wall of the upper end of the stirring paddle 50, the air outlet holes 52 are arranged in multiple and uniformly distributed, and at the same time, the stirring blade 51 is located below the air outlet holes 52 in the axial direction. By arranging vents on the stirring paddle, the steam injected into the drive shaft can enter the inner pot along the stirring device. When the stirring device is working, the steam can be evenly distributed in the inner pot space along with the rotation of the stirring device. This makes the air fryer process more uniform and reliable food materials. At the same time, the vent hole is located above the mixing blade, and the food material is not easy to touch the vent hole, which can effectively prevent the vent hole from being blocked by the food material and ensure the reliability and stability of the steam transmission pipeline.

As shown in Figures 1-16, the hot air assembly is located above the fryer assembly. The hot air fan 112 rotates and blows air to flow through the heating element 113, so that the air is heated and blocked by the air deflector 111 and flows into the interior. Inside the pot 151, the ingredients in the inner pot 151 are processed. Usually, the ingredients are placed on the frying basket 152. The frying basket 152 is provided with mesh holes for air flow. In order to facilitate the access to the inner pot 151, the There are handles on both sides of the inner pot 151. In this way, the hot air passes through the bottom of the frying basket 152 and upwards through the ingredients to heat the ingredients, and the air flowing through the ingredients is blown by the hot air fan 112 and passes through the heating element 113 again to be heated, so as to be heated in the inner pot. Form a cycle.

The horizontal projection length of the center of the fryer assembly from the center of the hinge axis is L, and the projection length of the distance between the center of the hot air assembly and the center of the hinge axis in the horizontal direction is L1, L>L1. The center of the hot air assembly is deviated from the center of the fryer assembly, so that the air in the inner pot circulates to form a turbulent flow, the front and rear air currents collide with each other, and the hot air that collides with each other can fully contact the food materials to heat the food materials. Further, setting L>L1 makes the center of the hot air assembly closer to the center of the hinge axis relative to the center of the fryer assembly. This is because when the lid is opened, it will rotate around the hinge axis to open the fryer assembly. Increase, the linear speed and rotation torque of the corresponding point increase, and the main mass of the cover is concentrated on the hot air assembly, which offsets the hot air assembly to the center of the hinge axis. When the cover rotates, the rotation radius of the hot air assembly is smaller, and the rotation line The speed and rotating torque are smaller, and the user can more easily control the cover, and the operation of the cover is more stable during the opening process. The product will not be shaken due to greater speed and kinetic energy. However, in the present application, the surrounding visible window is further combined to make the effective observation area of the visible window extend backward, which increases the effective observation area of the visible window.

The mounting part includes a mounting cavity. A fan motor 114 and a cold air fan 115 are arranged in the mounting cavity. The motor shaft of the fan motor 114 passes through the air guide plate 111 and is used to drive the hot air fan 112. 115 is arranged at the other end of the fan motor 114, and is jointly driven by the fan motor. In order to prevent the user from accidentally touching the hot air fan 112 and the heating element 113, a protective cover 116 is also provided under the heating element. The protective cover 116 shields the hot air fan 112 and the heating element 113, and is provided with vents so as not to Affect the normal flow of air.

The cover 10 is also provided with a transparent window 7, which is arranged around the hot air assembly and is located above the inner pot 151. In this way, the user can observe the state of the processed food in the inner pot 151 through the visible window 7. In this embodiment, the visible window 7 includes an inner window 71 and an outer window 72, and the inner window 71 extends laterally. Preferably, the inner window 71 is made of glass and is arranged in a plane shape. When the cover body 10 is closed on the base 15, the inner window 71 is attached to the upper end of the inner pot 151, which is convenient for the user to directly observe the inner pot. At the same time, the inner window 71 made of glass material also facilitates the user to clean the inner side of the cover 10. The outer window 72 is arranged obliquely, the inner window 71 and the outer window 72 are fixedly connected to the outside by a connecting piece 73, and the inner side is respectively fixedly connected to the mounting portion. The inner window 71, the outer window 72 and the mounting part enclose a visible cavity 70. Preferably, the mounting portion is vertically extended, so that the mounting portion is cylindrical. The inner side of the inner window 71 is connected to the bottom of the mounting portion, and the inner side of the outer window 72 extends to the middle section of the mounting portion. In this way, the outer window 72 divides the mounting portion into an outer mounting portion 1221 and an inner mounting portion 1222. Preferably, the side wall of the inner mounting portion 1222 shrinks rearwardly than the outer mounting portion 1221, so that the side wall of the mounting portion is stepped, so that in the horizontal direction, the inner window 71 is larger than the outer window 72. When the user observes the inner pot through the visible window, the user can directly observe the inner pot from the inner side of the outer window 72 to the inner side of the inner window 71 and observe the inner pot instead of from the outer window. 72 more observations of the inner mounting part 1222.

A motor bracket 14 for fixing the fan motor 114 is also provided in the mounting portion, and the air deflector 111 and the heating element 113 are also fixed to the motor bracket 14. The outer edge of the motor bracket 14 is provided with a fixing column 141, the outer window 72 is provided with a fixing counterbore 721, the outer mounting portion 1221 is provided with a fixing table 1224, the fixing table 1224, the fixing counterbore 721 and the fixing column 141 cooperate with each other and are fixed by screws. The outer mounting portion 1221 is further provided with a fixing rib 1223 at the bottom of the outer edge, the outer window 72 is correspondingly provided with a fixing groove 722, and the fixing rib 1223 is inserted into the fixing groove 722 to fix the outer mounting portion 1221 and the outer window 72 .

The motor bracket 14 extends downward to form a positioning ring 140, the wind deflector 111 is in the shape of a trumpet that opens downward, and extends outward at the lower end to form a mounting ring 1110. The inner window 71 has a mounting hole 710. The wind deflector 111 passes through the mounting hole, and the inner window 71 is placed on the mounting ring 1110. When the mounting ring 1110 is fixed to the motor bracket 14, the positioning ring 140 contacts the upper surface of the inner window 71 and presses the inner window 71 to oppose The inner window 71 is positioned. Preferably, a first sealing member 1111 is provided between the inner window 71 and the mounting ring 1110, and a second sealing member 142 is provided between the inner window 71 and the positioning ring 140. The surfaces where the first sealing member 1111 and the second sealing member 142 are attached to the accessory are also provided with sealing ribs. When the inner window 71, the motor bracket 14 and the wind deflector 111 are installed in place with each other, the sealing element ensures that the visual cavity and the installation part are isolated from the accommodating cavity.

As shown in FIGS. 15 and 16, the inner window 71 and the outer window 72 are fixedly connected by the connecting member 73. Preferably, the cover 10 further includes a fixing plate 711, and the fixing plate 711 is made of a metal material, such as stainless steel. In this way, the bottom surface of the cover body 10 is made of stainless steel and glass sanitary material, and it is convenient for the user to clean. The inner side of the fixing plate 711 is folded upward to form a fixing ring 7110, the fixing ring 7110 is attached to the bottom surface of the inner window 71, and the outer side of the fixing plate 711 is fixedly connected with the connecting member 73, and after being installed in place, the inner window is pushed The upper surface of 71 is attached to the connecting member 73 to fix the inner window 71. A third sealing member 712 is provided between the inner window 71 and the connecting member 73, and a fourth sealing member 713 is provided between the inner window 71 and the fixing ring 7110. The fourth sealing member 713 extends downward to form a sealing lip 7130. When the cover 10 is closed with the base 15, the sealing lip 7130 is attached to the upper end of the inner pot 151 to seal the inner pot and the inner window . Preferably, the upper end of the inner pot 151 is provided with an outward flange, and the sealing lip 7130 is attached to the flange. The upper and lower surfaces of the outer edge of the connecting member 73 are respectively provided with an upper slot 731 and a lower slot 732. The bottom of the outer window 72 is provided with a mounting edge 723. The mounting edge 723 is inserted into the upper slot 731 to fix the Said outside window 72. The outer edge of the fixing plate 711 is inserted into the lower slot 732, and the inner side of the lower slot 732 is also provided with support ribs 733 and studs 734. The fixing plate 711 is fixed to the connecting member 73 by the studs 734.

As shown in Figure 17, the projection of the air fryer on the horizontal plane is a brief view, the projection of the center of the hinge shaft 100 on the horizontal plane is O, the projection of the center of the hot air assembly on the horizontal plane is P, the center of the fryer assembly The projection on the horizontal plane is Q, the line between the center of the hot air assembly and the hinge center is OP, the line between the center of the fryer assembly and the hinge center is OQ, and the angle between the two is α, α≤10° . Preferably, the α=0°, that is, the projections of the center of the fryer assembly, the center of the hot air assembly, and the hinge center on the horizontal plane are in a line. The advantage of this setting is that the angle between the two is small, especially directly on a line, so that the length and area of the window located at the front of the air fryer, that is, the user’s side, is the largest, ensuring The user can conveniently observe the ingredients in the fryer assembly from the viewing window. If the included angle is set too large, although it does not affect the area of the visible window, the visible window deviates from the user's position, which makes it inconvenient for the user to observe; at the same time, the hot air component is relatively deviated to one side and the center of gravity is offset. When the cover is opened , The biased hot air component increases the shaking of the cover, which in turn makes the product unstable, manipulates the stool, and even risks the product to fall.

As shown in Figures 18 and 19, the cover 10 and the base 15 respectively include a processing area and a connection area. As shown by the arrow, normal users control the air fryer on the front side, so the processing area is set in the air fryer. The front side of the pot, and the connection area is arranged on the back side of the processing area, that is, the side away from the user. In this way, when the lid is in an open state, it is inclined to the connection area, thereby ensuring that the fryer assembly in the processing area can Fully open, convenient for users to operate normally.

In this embodiment, the fryer assembly is configured in a barrel shape, the processing area of the base 15 is configured to be a cylindrical shape that is matched with it, and the connection area of the base 15 is configured to form a matched cylinder. The main body shape of the base 15 is formed by tangent connection on the outside. The connecting area of the cover body 10 is cylindrical with the same radius as the connecting area of the base 15, and the processing area of the cover body 10 is set in a cylindrical shape with the same radius as the connecting area, and is connected tangentially on the outside to form the cover 10 The main body shape and constitute the mounting part. The visible window 7 is arranged around the processing area of the cover body 10, the bottom of which matches the shape of the base 15 and the upper part is connected with the cover body, so that the visible window 7 is formed into an irregular curved surface. Specifically, the outer window 72 has a curved surface shape, and the inner window 71 has a planar shape.

The effective radius of the fryer assembly is R, and the projection distance of the center of the fryer assembly from the center of the hinge axis on the horizontal plane is L, and 1.1≤L/R≤2. The advantage of this arrangement is that the connection area is set on the rear side of the machine base. When the cover is opened, the cover rotates backwards. From the user's point of view, the fryer assembly can be fully opened, which is convenient for the user to access the fryer assembly. Manipulation of ingredients. If the L/R setting is too small, the connection area between the lid body and the machine base is not clearly separated from the processing area, and the distance between the outer side of the fryer assembly and the center of the hinge axis is too small. When the lid body is opened, the distance between the lid body and the fryer assembly Insufficient separation is not conducive to the user's manipulation of the ingredients in the fryer assembly. Moreover, the cover is relatively close to the fryer assembly. When the user manipulates the ingredients in the fryer assembly, it is easy for the user to touch the hot air assembly. Risk of component injury. If the L/R setting is too large, the rotation radius of the cover is too large, especially the hot air assembly has a large rotation radius, the cover opening takes up more space, and the torsion and kinetic energy received during the opening of the cover are relatively large. Large, that is, it does not use the control machine, but also increases the shaking when the product is opened, and the whole machine is unstable.

The top of the mounting part is set to be flat, the front side of the mounting part is provided with a control area 134, and the inside of the installation cavity is provided with a control circuit board 131 corresponding to the control area 134. In this embodiment, the control area is set as a touch switch, and the corresponding function is displayed in the control area only when the product is powered on. The installation cavity is provided with an air inlet 132 and an air outlet 133 communicating with the outside, the air inlet 132 is provided in two, which are respectively located on both sides of the top of the installation part, and the air outlet 133 is located behind the installation part side. The cold air fan 115 sucks in the external cold air from the air inlet 132, flows through the control circuit board 131, the fan motor 114 and other components, and then discharges it from the air outlet 133 to avoid excessive temperature in the installation cavity from affecting the components. The air inlet 132 and the air outlet 133 can be arranged as a plurality of evenly distributed small holes to avoid the danger of extending into the installation cavity from the air inlet or the air outlet, and also to prevent insects from crawling in. Set the air inlet on both sides, and the cold air can flow directly to the circuit board and fan motor after entering, increasing the cooling efficiency; set the air outlet on the back side, the hot air discharged will not affect the user, and at the same time, avoid The discharged hot air is sucked into the installation cavity again.

As shown in FIG. 20, the cover body 10 is also provided with a steam discharge pipeline. The steam discharge pipeline includes an exhaust inlet 63, an exhaust outlet 64, and an exhaust pipe 65. The exhaust pipe 65 is connected to the exhaust inlet 63. And exhaust outlet 64. The exhaust inlet 63 is located on the top wall of the wind deflector 111, the top wall of the wind deflector 111 is provided with an exhaust hole 1112, and the exhaust inlet 63 is sealed and installed in the exhaust hole 1112. The exhaust outlet 64 includes a pressure relief chamber 641 and a pressure relief cover 642, and the pressure relief cover 642 is provided with a steam outlet 643. The pressure relief bin 641 is in the shape of a funnel with a large top and a small bottom. The bottom of the pressure relief bin 641 is connected to the exhaust inlet 63 through an exhaust pipe 65. The upper part of the pressure relief bin 641 is covered by a pressure relief cover 642. Set the steam outlet 643. The steam enters the steam discharge pipeline from the exhaust inlet 63, and enters the pressure relief bin 641 through the exhaust pipe 65. Due to the increase in volume, the steam will condense in the pressure relief bin 641, thereby avoiding excessive steam discharge. Inconvenience, the excess steam is further discharged through the steam outlet 643. The steam outlet 643 is set to the rear without affecting the user. It is inclined upward so that the steam can be quickly discharged and dissipated in the upward direction.

The projection distance of the center of the fryer assembly to the hinge axis on the horizontal plane is L, that is, the distance between the air inlet of the steam delivery pipeline and the center of the hinge axis is L, and the center of the hot air assembly is The projection distance of the hinge axis on the horizontal plane is L1, the projection distance of the center of the exhaust inlet from the center of the hinge axis on the horizontal plane is L2, and the projection span of the center of the exhaust outlet from the center of the hinge axis on the horizontal plane For L3, L>L1>L2>L3. In this way, after the steam is injected into the fryer assembly from the steam delivery pipeline, it is evenly dispersed from the center of the fryer assembly to the surroundings. At the same time, the steam naturally rises and spreads, so that the steam can be quickly injected into the fryer assembly and process the food, while the hot air assembly The eccentric setting prevents the steam from the center intake from directly impacting the hot air components, avoiding the rapid aging of the hot air components under steam impact, and ensuring the normal service life of the hot air components. The eccentrically arranged hot air component can also function as a turbulence for steam when it needs to be blown and processed, so that the steam can process the food more efficiently. Compared with the hot air assembly, the exhaust inlet is closer to the center of the hinged shaft, so that the exhaust inlet and the steam inlet are relatively farther apart, the steam travels in the fryer assembly relatively longer, and the steam use efficiency is higher. When the hot air assembly is working, because the exhaust inlet is located on the top wall of the air deflector, the fan blows the steam and keeps the steam away from the exhaust inlet, making it difficult for the steam to be directly discharged from the exhaust inlet, so that the steam forms a certain amount inside the fryer assembly. Pressure can process the food more efficiently. The exhaust outlet is closer to the hinge axis on the horizontal plane than the exhaust inlet, so that the exhaust outlet is further away from the user. The steam discharged from the exhaust outlet will not affect the user. At the same time, the steam outlet is discharged diagonally backward , Farther away from users, safer and more reliable to use.

In summary, by hollowing the drive shaft, the steaming function can be added and the function of the existing product can be expanded on the basis of no major changes to the existing product, and compared with the prior art, only a humidification structure is added inside , The present invention is equipped with a controllable steam generator. During the processing process, the steam intake time and air intake volume can be controlled. Moreover, the independent setting of the steam generator will not affect the efficiency of the heating element of the air fryer itself. The processing efficiency of the fryer itself is guaranteed. By deviating the hot air assembly from the fryer assembly and placing the hot air assembly closer to the center of the hinge axis, the turbulence improvement caused by the eccentricity of the hot air assembly can be met. In particular, the effective use area of the visible window at the user's position is increased, so that the user can conveniently observe the state of the accommodating cavity through the visible window, and can completely observe the inside of the fryer assembly without changing the viewing angle. With the increase of the observation area, the viewing window does not need to increase in the height direction, so that the cover and the overall height are reduced, that is, the space occupied by the whole machine is compressed, and the effective utilization ratio of the containing cavity is increased, and the waste of heat energy is avoided. The reduction in the height of the cover and the arrangement of the hot air assembly toward the hinge axis make the hot air assembly closer to the hinge axis. When the cover is opened, the torque and linear velocity of the hot air assembly are smaller, and the kinetic energy is small, which is convenient for the user to handle the cover. The control, the cover and the whole are more stable in control. The additional steam component of the air fryer expands the use function of the product, not only has a baking function, but also can realize different combinations of single steaming, single baking, baking + steaming, etc., to improve user satisfaction. The steam inlet is arranged in the center of the fryer assembly to facilitate the rapid injection of steam into the fryer assembly and improve the steaming processing efficiency. The center of the heating component and the fryer component, that is, the steam inlet is eccentrically arranged, which not only has the effect of turbulence, but also prevents the direct impact of steam on the heating component. The heating element is relatively close to the center of the hinge axis, which ensures the visible area of the visible window at the user's position. Preferably, the viewable window includes an outer window and an inner window, and constitutes a closed visual cavity. The visual cavity can block the temperature difference between the inside and outside of the containing cavity, avoid condensation due to the temperature difference, and ensure reliable observation.

It is understandable that the cover body and the base can be arranged separately, and the cover body is directly buckled on the base.

It is understandable that the cover body and the base can be separately arranged, and the cover body and the base are rotatably buckled.

It is understandable that the drive shaft and the air inlet cavity are sealed by mutually fitting flat surfaces, and no separate sealing element is required.

It is understandable that the air inlet may be arranged at the upper end or the lower end surface of the air inlet cavity; or, the air inlet may be arranged on the side wall of the air inlet cavity and located in the middle of the air inlet cavity End or upper end.

It is understandable that the air inlet and the air hole are located on the same axis, but the air inlet and the air hole are arranged in a staggered manner.

It is understandable that the air inlet cavity is provided with an air outlet, the drive shaft is inserted into the air inlet cavity through the air outlet and the lower end is located in the air inlet cavity, and the bottom or side wall of the drive shaft is provided with a guide A vent hole that passes through the drive shaft and the air inlet cavity, or the drive shaft is hollow and penetrates through both ends, and the air inlet cavity directly communicates with the drive shaft through a shaft hole at the lower end of the drive shaft.

It is understandable that the air inlet cavity is provided with an air outlet, the drive shaft is hollow and penetrates both ends, the lower end of the drive shaft is in contact with the outer surface of the air inlet cavity, and the air inlet cavity is connected to the air outlet through the air outlet. The drive shaft is connected.

It is understandable that the stirring blades may be provided in multiples, and they may be evenly distributed along the radial direction of the stirring blade; or, the stirring blades may be provided in multiples, and the stirring blades may be arranged in a staggered axial direction.

It can be understood that a gap is provided between the stirring device and the drive shaft, and steam can be injected into the inner pot from the gap between the stirring device and the drive shaft, instead of a separate exhaust hole.

It is understandable that the air outlet hole may be located below the stirring blade in the axial direction.

It can be understood that the air outlet may be provided at the top of the stirring blade.

It is understandable that the steam exhaust channel may be provided on the base.

It is understandable that the one-way valve is arranged in the connecting section, and the triggering portion is arranged in the driving section. For different processing function requirements, the inner pot needs to be set with different sealing requirements. For example, when the inner pot needs to rotate fluid-like ingredients, such as porridge or hot pot function, you only need to continuously inject steam into the inner pot to complete the porridge or hot pot. Heating, but at this time, the inner pot needs to have leak-proof sealing performance. The one-way valve is set in the connection section to ensure the controllability of the steam transmission path, and the one-way valve can prevent the food in the inner pot from entering the steam through the drive shaft The generator improves the transmission reliability and the safety performance of the whole machine.

It is understandable that the drive shaft may be integrally provided, and the drive shaft extends into the inner pot to drive the stirring device and realize steam transmission.

It is understandable that the drive shaft is integrally provided, and the drive shaft and the air inlet cavity are detachably provided. Preferably, the drive shaft can be arranged on the inner pot and detached with the inner pot.

It is understandable that the drive shaft and the steam generator are arranged on the cover body, the drive shaft extends into the containing cavity from the cover body, the stirring device is located in the inner pot, and the drive shaft and the The stirring device is connected to drive the stirring device, and the steam generator injects steam into the inner pot through a hollow drive shaft.

It is understandable that the base can also be set in a square or elliptical column shape in cross section, or set in a table shape with a large top and a small bottom, a small top and a large bottom, etc., to achieve appearance requirements according to different shapes.

It can be understood that the visible window is arranged in a single layer.

It is understandable that the lateral extension of the inner window means that the main body is arranged laterally instead of being completely flat. For example, a curved surface with a certain arc or a wave shape can be arranged.

It can be understood that the setting of the visible window around the hot air assembly not only means that it is completely contained in the projection direction, but can also be set in a "C" shape, that is, the main part is contained.

It is understandable that the visible window is attached to the upper end of the inner pot through a sealing member; or, the visible window goes deep into the fryer assembly and is attached to the inner pot.

It is understandable that the inner window is directly connected to the outside of the outer window, and is fixedly connected by means of ultrasound, welding, screw connection and the like.

Example two.

As the second embodiment of the easy-to-process air fryer of the present invention, the main difference from the first embodiment is that the air fryer is not provided with an air inlet cavity.

As shown in Figure 21, the air fryer includes a steam generator, and a steam pipe 61 is provided in the base. The drive shaft is hollow, and the hollow drive shaft runs through, so that a shaft hole 38 is formed at the lower end of the drive shaft, the steam tube 61 can be inserted into the shaft hole 38, and the outer side wall of the steam tube is also provided with steam The pipe sealing ring 611 is sleeved outside the steam pipe 61 and is attached to the inner wall of the drive shaft when the steam pipe 61 is inserted into the drive shaft to seal the steam pipe and the drive shaft.

The drive shaft includes a drive section 3, the drive section 3 is provided with a drive section wheel 314, the drive source 8 is provided with a transmission belt 82, and the drive source 8 drives the drive section wheel 314 through the transmission belt 82 to drive The drive shaft. The driving source 8 is fixed on the inner wall of the base.

The advantage of this arrangement is that the steam generator is directly connected to the drive shaft through the steam pipe, and the steam pipe is directly plugged into the drive shaft. The structure is simple to realize, and the steaming function can be met by adding a steam generator. At the same time, the steam generator It can be arranged outside the accommodating cavity, does not occupy the power consumption of the heating element of the air fryer itself, and ensures the stable and reliable processing of the air fryer itself. The sealing structure is arranged between the steam pipe and the drive shaft to further ensure the reliability of steam transmission. Even if the drive shaft rotates relative to the steam pipe, the reliability of steam transmission can be ensured. The steam pipe is directly inserted into the drive shaft, and the steam can be quickly transmitted up the hollow drive shaft. This is also the direction in which the steam itself naturally rises. If the steam goes down in the opposite direction, it will be affected by the rising buoyancy of the steam itself and the subsequent air. Pressure, the possibility of steam leakage is further reduced. The drive source drives the drive shaft to rotate through the belt, and the large transmission ratio of the belt itself makes the drive source selectivity greatly improved, and a lower cost and higher speed motor can be used to meet the drive requirements.

It is understandable that the driving source is provided with driving teeth, the driving shaft is provided with driven teeth, and the driving source directly or indirectly drives the driving shaft.

It can be understood that the steam pipe is sleeved outside the drive shaft, and the steam generator is in communication with the drive shaft through the steam pipe.

Example three.

As the third embodiment of the easy-to-process air fryer of the present invention, the main difference from the first embodiment is that an air intake grille is further provided in the air intake cavity.

As shown in FIG. 22, the air inlet cavity includes an air inlet 20 and an air outlet 221. The air inlet is located on the side of the air inlet cavity 2, and the air outlet 221 is located at the side of the air inlet cavity 2. In the center, the inner wall of the air intake cavity is also provided with an air intake grill 28, the air intake grill 28 is arranged on the inner side wall of the air intake cavity 2, and the air intake grill 28 spirally rises to enter the intake air The steam in the cavity 2 can spirally rise along the air intake grille 28 and be discharged through the air outlet 221.

By setting the intake grille, the movement path of the steam in the intake cavity is more controllable. On the one hand, when steam enters the intake cavity, due to the changes in volume and effective cross-section, the pressure of the steam is released and re-accumulates in the intake cavity to form steam with stable pressure, which is then transmitted to the containing cavity through the drive shaft to ensure The processing of the air fryer is reliable; on the other hand, the intake grill extends the steam movement path in the intake cavity, and the corresponding steam stays in the intake cavity for a long time, making the pressure from the steam generator unstable The steam is fully released in the air inlet cavity, so that the pressure of the steam discharged from the air inlet cavity is stable and controllable, thereby making the air fryer stable and reliable during the processing process.

It is understandable that the air intake grille is arranged in multiples, and they are arranged at intervals.

It is understandable that the air inlet is located at the bottom of the side wall of the air inlet cavity, and the air outlet is located at the top of the side wall of the air inlet cavity and is arranged opposite to the air inlet. The steam generator further includes The steam pipe located at the air outlet, the steam generator is in communication with the drive shaft through the steam pipe.

It can be understood that the air inlet is located at the top of the side wall of the air inlet cavity, and the air outlet is located at the bottom of the air inlet cavity or the bottom of the side wall, and steam enters the air inlet cavity from the upper part and exits the air inlet cavity from the lower part. Due to the upward buoyancy of the steam itself, the oppositely arranged air inlet cavity makes the steam in the air inlet cavity better discharged from the air outlet only by the subsequent compression of steam, and the volume change in the air inlet cavity makes After the steam pressure is released, re-accumulated, and pressurized, the final steam pressure is controllable and stable, which ensures the stability and reliability of food processing. When the steam is pressed downwards, the water droplets remaining in the steam are condensed and finally collected in the intake cavity, and then discharged through the drainage structure, etc., ensuring that the steam entering the containing cavity is pure and efficient.

The above are only the preferred embodiments of the present invention and are not used to limit the scope of implementation of the present invention. That is, all equivalent changes and modifications made in accordance with the present invention are covered by the scope of the claims of the present invention. Give another example.

Claims

An air fryer is characterized in that it comprises a base and a cover connected with the base, the base is provided with an accommodating cavity, a fryer assembly is arranged in the accommodating cavity, and the cover is provided with The hot air assembly, the hot air assembly includes an air deflector, a hot air fan and a heating element, a steam generating device is also provided in the base, and the steam generating device includes a steam generator and a steam pipeline through which the steam generator passes The steam pipeline communicates with the containing cavity to pass steam into the containing cavity.
The air fryer of claim 1, wherein the fryer assembly comprises an inner pot and a stirring device arranged in the inner pot, and the air fryer further comprises a driving device for driving the stirring device, the The driving device includes a driving source and a driving shaft arranged on the machine base, the driving shaft is hollow, the steam pipeline is connected with the driving shaft and the steam is passed into the containing cavity through the hollow driving shaft.
The air fryer according to claim 2, wherein the drive shaft is located at the center of the bottom of the accommodating cavity, the drive shaft includes a drive section and a connecting section that communicate with each other, and the drive section is in communication with the steam generator, The connecting section is arranged on the inner pot and is detachably connected with the driving section, and the connecting section drives the stirring device.
The air fryer according to claim 3, wherein the drive shaft further comprises a one-way valve and a trigger part respectively arranged on the drive section and the connection section, and when the drive section and the connection section are connected to each other The trigger part triggers the one-way valve to conduct the drive section and the connection section.
The air fryer of claim 1, wherein the steam generating device further comprises an air inlet cavity, the air inlet cavity communicates with the steam generator through an air inlet, and one end of the steam pipe is inserted into the The air inlet cavity is connected with each other, and the other end extends into the accommodating cavity. The part of the steam pipeline located in the air inlet cavity is provided with a vent hole that leads the air inlet cavity and the steam pipeline.
The air fryer according to claim 5, wherein the steam pipeline penetrates the air inlet cavity and the extension end is closed, and the vent hole is provided in a part of the steam pipeline located in the air inlet cavity Side wall.
The air fryer according to claim 5, wherein the air inlet cavity is disk-shaped, the air inlet is arranged along the radial direction of the air inlet cavity, and the center of the air inlet does not pass through The center of the air inlet cavity is provided with an air outlet into which the steam pipeline is inserted, and the drive shaft is inserted into the air inlet cavity along the axial direction.
The air fryer according to claim 5, wherein a contraction step is provided in the air inlet cavity, and the contraction step extends into the inner space of the air inlet cavity, so that a buffer zone and a In the conduction area, the air inlet is in communication with the buffer zone, the conduction zone is in communication with the vent hole, and the equivalent cross-sectional area of the buffer zone is larger than the equivalent cross-sectional area of the conduction zone.
The air fryer according to claim 1, wherein the fryer assembly comprises an inner pot and a stirring device arranged in the inner pot, the stirring device comprises a stirring blade and a stirring blade, and the stirring blade is provided with a communication The steam generator and the vent of the inner pot.
The air fryer according to claim 9, wherein the vent holes are arranged on the side wall of the upper end of the stirring paddle, the vent holes are arranged in a plurality and are arranged uniformly, and the stirring blades are located in the axial direction. Below the vent hole.
The air fryer of claim 1, wherein the cover is hinged to the base, a transparent window is provided on the cover, and the center of the hot air assembly is offset from the center of the fryer assembly , The distance from the center of the fryer assembly to the hinge center is projected as L in the horizontal direction, and the distance from the center of the hot air assembly to the hinge center is projected as L1 in the horizontal direction, L>L1, and the visible window is arranged around the hot air assembly and located at the Above the fryer assembly.
The air fryer according to claim 11, wherein the cover body is further provided with a steam discharge pipeline, and the steam discharge pipeline includes an exhaust inlet, an exhaust pipe, and an exhaust outlet, the exhaust inlet Located on the top wall of the wind deflector.
The air fryer according to claim 12, wherein the horizontal projection of the distance between the exhaust inlet and the hinge center is L2, L1>L2.
The air fryer according to claim 13, wherein the exhaust outlet is located on the top wall of the cover, and the distance between the exhaust outlet and the hinge center is projected as L3 in the horizontal direction, and L2>L3.
The air fryer of claim 1, wherein the cover is provided with a transparent window, the fryer assembly includes an inner pot, and the window includes an outer window and an inner window that is attached to the inner pot , The outer window is arranged obliquely, the inner window extends laterally, the outer window, the inner window and the cover are enclosed to form a visual cavity, and the outer window, the inner window and the cover are respectively provided with seals, so that The visible cavity forms a closed cavity.
The air fryer according to claim 15, wherein the inner window is attached to the upper end of the inner pot, the inner window is provided with a mounting hole, and the air deflector penetrates the mounting hole to communicate with the inner The window is connected, and a sealing element is arranged between the wind deflector and the inner window.
The air fryer according to claim 15, wherein the cover body further comprises a connecting member, the outer window and the inner window are communicated through the connecting member, a sealing ring is provided under the inner window, and the upper end of the inner pot Flanging is provided, and the sealing ring is attached to the flanging.