Airfoil-shaped splitter back blowing air fryer

Abstract

The utility model relates to a wing-shaped splitter back blowing air fryer, and aims to solve the technical problems of poor split-flow and backflow effects of hot air in a hot air cavity and poor hot air circulation effect caused by poor design of a split-flow structure in a machine body of an existing similar product. The air fryer is characterized in that the front portion of one end of a top hardware flow guide cover of the air fryer is bent downwards and aligned with the inner side of a fryer opening of a fryer body, and the top hardware flow guide cover and brims symmetrically arranged on the two sides of the top hardware flow guide cover are connected with top plate openings of hardware side plates into a whole to form a rectangle; an opening in the rear part of the other end of the top hardware flow guide cover is shrunk and is aligned and communicated with a channel hole raised at the edge of the hardware side plate above the through hole; a tongue opening which is bent inwards is formed in the edge of a protruding part above a channel hole of a hardware side plate in a rear opening of the top hardware flow guide cover, splitter pieces which are obliquely arranged in parallel are symmetrically arranged on the two sides of the position, above the tongue opening, of the top hardware flow guide cover, and the two ends of each splitter piece tilt downwards to be in a wing shape.

Description

Technical Field

[0001] This utility model relates to an air fryer, specifically an airfoil-shaped splitter back-blowing air fryer. Background Technology

[0002] An air fryer is a new type of household appliance that uses high-speed air circulation technology to fry food. Compared to traditional electric fryers, it reduces the amount of oil in the food by 80%, is easy to clean in daily use, and is both safe and economical, making it very popular. To improve the efficiency of air fryers, some models have fan blades at the rear and diversion plates or ribs in the metal lining above the opening for airflow distribution. Examples include Chinese patent application number 202321019193.6, authorized on October 3, 2023, entitled "An Air Fryer"; and Chinese patent application number 202420431369.7, authorized on December 3, 2024, entitled "A Modular Air Fryer." However, the internal diversion structure design of these products and similar products is suboptimal, resulting in poor diversion and recirculation of hot air within the hot air chamber, and ineffective hot air circulation. Summary of the Invention

[0003] To overcome the above-mentioned shortcomings, the purpose of this utility model is to provide an airfoil-shaped diffuser back-blowing air fryer, thereby solving the technical problem that the poor design of the diffuser structure inside the body of existing similar products leads to poor diversion and recirculation of hot air in the hot air cavity, and poor hot air circulation. This objective is achieved through the following technical solution.

[0004] An air fryer with a splitter vane and back-blowing design is disclosed. The air fryer has a handle and basket assembly housed within a metal liner with an opening on one side of the body. The metal liner includes a metal side plate, a top metal air guide, and a metal bottom plate. The motor shaft of a motor located at the back of the body is connected to both a metal centrifugal fan and a plastic centrifugal fan. The plastic centrifugal fan is housed within the back metal air guide on the back of the metal side plate. The motor is fixedly mounted on the back of the back metal air guide. At least the middle of the back of the metal side plate opposite the metal centrifugal fan has equidistantly distributed through holes. A honeycomb perforation is provided on one side of the back of the pot corresponding to the through hole. An electric heating element is housed inside the top metal flow guide shroud above the pot opening. One end of the top metal flow guide shroud bends downwards and aligns with the inner side of the pot opening. This end of the top metal flow guide shroud and the symmetrically arranged cap edges on both sides are integrated with the top opening of the metal side plate, forming a rectangle. The other end of the top metal flow guide shroud has a constricted rear opening that aligns with and communicates with a protruding channel hole on the edge of the metal side plate above the through hole. The motor and electric heating element are connected to the control panel assembly inside the machine via wiring. A key structural design feature is that the protruding portion above the channel hole on the metal side plate within the rear opening of the top metal flow guide shroud has an inwardly curved tongue-shaped opening. Symmetrically arranged, obliquely parallel flow dividers are positioned on both sides of the top metal flow guide shroud above the tongue-shaped opening, with both ends of the flow dividers curving downwards into a wing shape. The aforementioned airflow divider is installed in the top metal air guide shroud and located in the channel between the top metal air guide shroud and the metal side plate. When airflow is generated from the metal centrifugal fan, it is dispersed through the top airfoil divider under the convergence of the back metal air guide shroud, flowing towards the front of the top metal air guide shroud and downwards into the pot body. It then flows back to the metal centrifugal fan through the honeycomb holes in the pot body and the openings on the metal side plate. Simultaneously, the aforementioned airflow divider uses a simple airfoil surface, resulting in less turbulence resistance in the entire airflow channel. Therefore, it does not significantly affect the airflow rate in the entire circulation channel, easily meeting the baking performance requirements of food. Furthermore, the generated noise is also lower; adding an airflow divider to the back metal air guide shroud would produce significantly more airflow noise.

[0005] The metal side plate has stepped edges on both sides of the tongue, which facilitates changing the direction of airflow. The airflow travels further on the side with the longer tongue, while the airflow tends to flow downwards on the side with the shorter tongue, returning directly to the central hole.

[0006] The central axis between the flow dividers is set at an angle of 60-80 degrees to the flow dividers, with the optimal angle being 65 degrees.

[0007] The two ends of the flow divider are respectively flared outwards and tilted at an angle of 95-120 degrees, with the optimal angle being 100 degrees.

[0008] The metal side panel has symmetrically spaced auxiliary holes on the outer side of the through holes, thereby further improving the ventilation effect at the back of the metal side panel.

[0009] The top metal air guide is provided with a frame mounting hole in the middle, and a lamp mounting hole is provided at the downward bend of the top metal air guide. The heating tube is mounted in the frame mounting hole of the top metal air guide, and the lighting component is mounted in the lamp mounting hole of the top metal air guide.

[0010] This utility model has a simple and reasonable structural design, is easy to disassemble, replace and clean, and has good hot air diversion, recirculation and circulation effects inside the machine, with low turbulence resistance and noise; it is suitable for use as an airfoil-shaped diffuser back-blowing air fryer, as well as for structural improvements of similar products. Attached Figure Description

[0011] Figure 1 This is a partial exploded structural diagram of an embodiment of the present invention.

[0012] Figure 2 yes Figure 1 A three-dimensional magnified schematic diagram of the inverted state of the shunt.

[0013] Figure 3 yes Figure 1 Schematic diagram of the rear structure of the hardware side panel.

[0014] Figure 4 yes Figure 1 A schematic diagram of the internal structure of the top metal air guide cover.

[0015] Figure 5 yes Figure 1 The schematic diagram of the cross-sectional structure of Embodiment 1 shows that the body is a single-cavity structure.

[0016] Figure 6 yes Figure 1 The schematic diagram of the cross-sectional structure of Embodiment 2 shows that the body has an upper and lower double cavity structure.

[0017] Attached Figures and Their Names: 1. Back Metal Airflow Deflector, 2. Metal Centrifugal Fan Blade, 3. Metal Side Plate, 301. Tongue, 302. Through Hole, 303. Auxiliary Hole, 4. Diverter Plate, 5. Top Metal Airflow Deflector, 501. Frame Mounting Hole, 502. Lamp Mounting Hole, 6. Metal Centrifugal Fan Blade, 7. Plastic Centrifugal Fan Blade, 8. Metal Base Plate, 9. Motor, 10. Heating Element. Implementation

[0018] The structure and use of this utility model will now be further described with reference to the accompanying drawings. Figure 1-6As shown, the air fryer has a handle and frying basket assembly inside a metal liner with an opening on one side of the body. The metal liner includes a metal side plate 3, a top metal air guide shroud 5, and a metal bottom plate 8. The motor shaft of the motor 9 at the back of the body is connected to both a metal centrifugal fan 6 and a plastic centrifugal fan 7. The plastic centrifugal fan is located inside the back metal air guide shroud 1 on the back of the metal side plate. The motor is fixedly located on the back of the back metal air guide shroud. Equally spaced through holes 302 are provided in the middle of the back of the metal side plate opposite to the metal centrifugal fan. A honeycomb perforation is provided on one side of the back of the pot body corresponding to the through holes. An electric heating element 10 is located inside the top metal air guide shroud above the pot opening. One end of the front bends downward and aligns with the inner side of the pot opening. The top metal flow guide and the symmetrically arranged cap edges on both sides of this end are integrated with the top opening of the metal side plate to form a rectangle. The other end of the top metal flow guide has a constricted opening at the rear and is aligned with and communicates with the protruding channel hole on the edge of the metal side plate above the through hole. The motor and heating element are connected to the control panel assembly inside the machine through wiring. The protruding part above the channel hole of the metal side plate in the rear opening of the top metal flow guide has an inwardly bent tongue 301. On both sides of the top metal flow guide above the tongue, there are obliquely parallel diverter plates 4. The two ends of the diverter plates are respectively curved downward to form a wing shape.

[0019] The tongue-shaped sides of the aforementioned hardware side plate have stepped high and low edges; the central axis between the diverter plates is set at an angle of 60-80 degrees to the diverter plates, with an optimal angle of 65 degrees; the two ends of the diverter plates are respectively set at an angle of 95-120 degrees, with an optimal angle of 100 degrees. At the same time, auxiliary holes 303 are symmetrically distributed at equal intervals on the outer side of the through hole 302 of the hardware side plate; the top hardware guide shroud has a frame mounting hole 501 in the middle, and a lamp mounting hole 502 is provided at the downward bend of the top hardware guide shroud. The heating element's hanging bracket is set in the frame mounting hole of the top hardware guide shroud, and the lighting component is set in the lamp mounting hole of the top hardware guide shroud.

[0020] When using the air fryer, remove the pot body using the corresponding handle basket assembly, place food inside the pot or on the rack inside the pot, and then reinsert the lower pot body into the lower unit using the handle basket assembly. Press the corresponding cooking button on the control panel assembly, and the food inside the pot will be automatically processed and cooked.

Claims

1. An air fryer with airfoil-shaped deflector back-blowing air, the hardware lining of the open side of the machine body is provided with a handle basket assembly, the hardware lining includes hardware side plate (3), top hardware fairing (5) and hardware bottom plate (8), the motor shaft of the motor (9) in the back of the machine body is connected with hardware centrifugal fan blade (6) and plastic centrifugal fan blade (7) at the same time, the plastic centrifugal fan blade is arranged in the back hardware fairing (1) of the back of the hardware side plate, the motor is fixedly arranged at the back of the back hardware fairing, at least the middle of the back of the opposite hardware side plate of the hardware centrifugal fan blade is provided with equidistantly distributed through holes (302), the back of the pot body is provided with honeycomb holes corresponding to the through holes, the top hardware fairing above the pot opening is provided with an electric heating tube (10), one end of the top hardware fairing is bent downward and aligned with the inner side of the pot opening, the end of the top hardware fairing and the symmetrically arranged hat along on both sides are integrated with the top plate opening of the hardware side plate to form a rectangle, the other end of the top hardware fairing is contracted and aligned with the through hole of the protruding channel hole of the edge of the hardware side plate above the through hole, the motor and the electric heating tube are connected with the control panel assembly in the machine body through lines respectively; characterized in that The edge of the raised part above the through hole of the rear opening of the top hardware fairing (5) is provided with an inwardly curved tongue (301), and the top hardware fairing is symmetrically provided with a slanting parallel flow splitter (4) on both sides above the tongue.

2. The airfoil fin back blast air air popper of claim 1, wherein The two sides of the tongue (301) of the hardware side plate (3) are stepped edges.

3. The airfoil shunt back-blast air popper of claim 1, wherein The middle axis between the flow splitters (4) is arranged at an angle of 60-80 degrees with the flow splitters, and the optimal angle is 65 degrees.

4. The airfoil shunt backed impingement air fryer of claim 1, wherein The two ends of the flow splitter (4) are respectively outwardly opened and raised to form a wing type, and are arranged at an angle of 95-120 degrees, and the optimal angle is 100 degrees.

5. The finned diverter back-blast air popper of claim 1 wherein The outer side of the through hole (302) of the hardware side plate (3) is symmetrically provided with equidistant auxiliary holes (303).

6. The finned diverter back-blast air popper of claim 1 wherein The top hardware fairing (5) is provided with a frame mounting hole (501) in the middle, and the top hardware fairing is provided with a lamp body mounting hole (502) at the downward bending part; the hoisting support of the electric heating pipe (10) is arranged in the frame mounting hole of the top hardware fairing, and the lighting assembly is arranged in the lamp body mounting hole of the top hardware fairing.

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