Novel integrated fan blade for cooking utensil

Abstract

The utility model relates to a novel integrated fan blade for a cooking utensil, aiming at solving the technical problem that the existing similar cross-flow fan blade is lack of a hot air blade structure design, so that the cooling and cold and hot air circulation effects of the cooking utensil are poorer. Bodies of the fan blades comprise cold air blades and hot air blades, main bodies of the cold air blades are cross-flow fan blades, the bodies are arranged between a hardware heat insulation layer and a plastic heat insulation layer at a machine head in the machine body, and a shaded pole motor is arranged at the top of the body in the machine head; the main point is that the top of the outer side of the disc surface or the bottom of the inner side of the disc surface of the body is provided with a hot air blade which is integrally connected, and the blade body of the hot air blade is formed by bending outwards or bending outwards and extends out of a cold air blade rectangular through hole in the disc surface at the top of the cold air blade. The hot air blade rectangular through holes in one sides of the bottoms of the blade bodies are aligned with the cold air blade rectangular through holes in the top disc faces of the cold air blades of the body, and the blade bodies are distributed outwards at equal intervals with motor shaft insertion holes of the cold air blades and the hot air blades as the center.

Description

Technical Field

[0001] The utility model relates to an air fryer, and is a novel integrated impeller for cooking appliances. Background Art

[0002] An air fryer is a novel household appliance that uses high-speed air circulation technology to fry food. The food made by it can reduce 80% of the grease compared with traditional electric fryers. It is easy to clean in daily use, safe and economical, and is favored by people. Some of the existing air fryers adopt an impeller type or a cross-flow impeller structure design for the impeller, such as the application number 201920952354.4 disclosed in the Chinese patent literature, the authorization announcement date is May 26, 2023, and the utility model name is "An impeller and an air fryer with the impeller". The blades protrude downward on the lower end surface of the turntable and are circumferentially spaced around the edge of the turntable. Each blade is inclined along the rotation direction of the turntable. An air outlet is formed between adjacent two blades to make the passing air flow rotate. An air inlet for the air flow to enter is formed between the lower end surface of the turntable and each blade. However, the above products and similar products lack the structural design of hot air blades, and rarely adopt the blade structure in which the cold air blades and the hot air blades are integrally formed, resulting in poor heat dissipation and cold and hot air circulation effects of the cooking appliance, high production costs, and inconvenient production and assembly. Summary of the Invention

[0003] To overcome the above deficiencies, the purpose of the utility model is to provide a novel integrated impeller for cooking appliances to solve the technical problems that the existing similar cross-flow impellers lack the structural design of hot air blades, rarely adopt the blade structure in which the cold air blades and the hot air blades are integrally formed, resulting in poor heat dissipation and cold and hot air circulation effects of the cooking appliance, high production costs, and inconvenient production and assembly. The purpose is achieved through the following technical solutions.

[0004] A novel integrated impeller for a cooking appliance. The body of the impeller includes cold air blades and hot air blades. The cold air blades of the body are in the shape of a cylindrical disc. Oblique grids are equidistantly distributed on the cylindrical surface of the cold air blades of the body. The body is arranged between a metal heat insulation layer and a plastic heat insulation layer at the head of the machine body. At the top of the body inside the head, there is a shaded pole motor. The motor shaft of the shaded pole motor is connected to the body through the plastic heat insulation layer. Inside the machine body, a heating tube is arranged in a groove at the metal heat insulation layer above the mouth of the inner pot assembly. The key point of the structural design is that at the top outside the disc surface or the bottom inside the disc surface of the body, there are integrally connected hot air blades. The blade body of the hot air blades is bent outward, or bent outward and extends out of the rectangular through holes of the cold air blades at the top of the disc surface of the cold air blades. The rectangular through holes of the hot air blades on one side of the bottom of the blade body are aligned with the rectangular through holes of the cold air blades at the top of the disc surface of the body's cold air blades. The blade body is equidistantly distributed in a blade-like manner outward with the motor shaft insertion holes of the cold air blades and the hot air blades as the center. The above-mentioned machine body is a cooking appliance such as an air fryer that requires both cold air blades and hot air blades at the same time. This impeller facilitates the production and assembly of the corresponding cooking appliance and reduces costs.

[0005] The hot air blades of the body are metal wind blades formed by stamping a metal plate. The blade body of the hot air blades is integrally stamped and bent outward from the rectangular through holes of the hot air blades.

[0006] The cold air blades of the body are plastic cross-flow wind blades formed by integral injection molding, or metal cross-flow wind blades formed by stamping and then combined with the disc ring at the disc mouth.

[0007] The edge step at the disc surface of the body is limited in the central hole of the metal heat insulation layer. At the same time, the blade body of the hot air blades of the body extends out of the central hole of the metal heat insulation layer, and the cold air blades of the body are located in the cold air channel of the plastic heat insulation layer.

[0008] The cold air channel of the plastic heat insulation layer sinks in a ring shape. Cold air inlet holes are equidistantly distributed on the inner wall of the cold air channel. The air inlet holes are aligned with the cold air blades of the body in the cold air channel. The shaded pole motor is arranged on the sunken motor fixing sink at the top of the plastic heat insulation layer. The motor shaft of the shaded pole motor is connected to the motor shaft insertion hole of the body through the motor shaft through hole in the middle of the motor fixing sink of the plastic heat insulation layer. There is a cold air discharge port on one side of the cold air channel of the plastic heat insulation layer.

[0009] The top of the metal heat insulation layer is stamped to form a boss and a circular groove at the step, and the bottom notch of the plastic heat insulation layer is sleeved on the circular groove at the top step of the metal heat insulation layer. One side of the central hole at the boss on the top of the metal heat insulation layer is provided with a stamping hole for installing one end of the heating tube with a fixed flange. The wiring terminal of the heating tube extending out of the fixed flange and the shaded pole motor are connected to the PCB control component in the machine head through a circuit. The metal heat insulation layer is provided with stamping holes, and the stamping holes include cold air ventilation holes, microswitch through holes, water vapor discharge holes, heating tube clamp fixing holes, fuse fixing holes, NTC temperature sensing probe fixing holes, positioning pin through holes and / or screw through holes. The corresponding stamping holes are used for the installation of corresponding components and the exhaust of corresponding channels.

[0010] The pot body assembly is arranged in the chamber with an opening on one side of the machine body. The handle on one side of the pot body assembly extends out of the opening on one side of the machine body, and a grill is arranged at the bottom of the inner pot of the pot body assembly. The above is a specific embodiment of an air fryer.

[0011] The structure of the utility model is reasonably designed, the structure form of the fan blade is diverse, the heat dissipation and the cold and hot air circulation effect are good, and the application range is wide; it is suitable for use as a new integrated fan blade of cooking appliances such as air fryers, and the structure improvement of similar products. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic cross-sectional structure view of an embodiment of the utility model.

[0013] Figure 2 is Figure 1 a schematic internal structure view in the opened state of the outer shell at the machine body of

[0014] Figure 3 is Figure 1 a schematic three-dimensional structure view of the bottom of the body of

[0015] Figure 4 is Figure 1 a schematic three-dimensional structure view of the heating tube of

[0016] Figure 5 is Figure 1 a schematic three-component structure view in the opened state of the plastic heat insulation layer after the body is installed in the metal heat insulation layer, and the dotted line in the figure is the body.

[0017] Reference numerals and names of the drawings: 1. shaded pole motor, 2. plastic heat insulation layer, 201. cold air inlet hole, 202. motor fixing counterbore, 203. motor shaft through hole, 3. body, 301. cold air blade, 302. hot air blade, 3021. blade body, 4. metal heat insulation layer, 5. pot body assembly, 6. grill, 7. handle, 8. heating tube, 801. fixed flange, 802. wiring terminal, 9. PCB control component. Embodiment

[0018] Now, in combination with the attached drawings, the structure and use of the present utility model will be further described. As Figures 1-5 shown, the body 3 of the wind blade includes cold air blades 301 and hot air blades 302. The cold air blades of the body are in the shape of a cylindrical disk. Oblique grids are equidistantly distributed on the cylindrical surface of the cold air blades of the body. The body is arranged between the hardware heat insulation layer 4 and the plastic heat insulation layer 2 at the head of the machine body. At the top of the body inside the head, there is a shaded pole motor 1. The motor shaft of the shaded pole motor is connected to the body through the plastic heat insulation layer. Inside the machine body, a heating tube 8 is arranged in a groove at the hardware heat insulation layer above the mouth of the inner pot of the pot body assembly 5; the pot body assembly is arranged in a chamber with an opening on one side of the machine body. A handle 7 on one side of the pot body assembly extends out of the opening on one side of the machine body. A grill 6 is arranged at the bottom of the inner pot of the pot body assembly. At the top outside the disk surface or the bottom inside the disk surface of the above-mentioned body, there are hot air blades 302 connected as a whole. The blade body 3021 of the hot air blade is bent outward, or bent outward and extends out of the rectangular through-hole of the cold air blade at the top disk surface of the cold air blade 301. The rectangular through-hole of the hot air blade at one side of the bottom of the blade body is aligned with the rectangular through-hole of the cold air blade at the top disk surface of the cold air blade of the body. The blade body is distributed equidistantly in a blade shape outward with the motor shaft insertion holes of the cold air blade and the hot air blade as the center. The hot air blades of the body are hardware wind blades formed by stamping metal plates. The blade body of the hot air blade is integrally stamped and bent outward corresponding to the rectangular through-hole of the hot air blade. The cold air blades of the body are plastic cross-flow wind blades formed by integral injection molding, or hardware cross-flow wind blades formed by stamping and then combined with the disk ring at the disk opening. The number of the oblique grids of the above-mentioned cold air blades and the number of the blade bodies of the hot air blades are set according to needs. Generally, 27 oblique grids of the cold air blades and 6 blade bodies of the hot air blades are used.

[0019] At the same time, the edge step on the disk surface of the above-mentioned body is limited to the central hole of the hardware heat insulation layer. The blade body of the hot air blade of the body extends out of the central hole of the hardware heat insulation layer, and the cold air blade of the body is located in the cold air channel of the plastic heat insulation layer. The cold air channel of the plastic heat insulation layer sinks in a ring shape, and the inner wall of the cold air channel is provided with cold air inlet holes 201 evenly distributed. The cold air inlet holes are aligned with the cold air blades of the body in the cold air channel. The shaded pole motor is arranged on the motor fixing sink 202 sunken at the top of the plastic heat insulation layer. The motor shaft of the shaded pole motor passes through the motor shaft through hole 203 in the middle of the motor fixing sink at the plastic heat insulation layer and is connected to the motor shaft jack of the body. A cold air discharge port is arranged on one side of the cold air channel of the plastic heat insulation layer. A boss and a circular groove at the step are formed by stamping on the top of the hardware heat insulation layer. The bottom notch of the plastic heat insulation layer is sleeved on the circular groove at the top step of the hardware heat insulation layer. A stamping hole for installing one end fixed flange 801 of the heating tube is arranged on one side of the central hole at the boss on the top of the hardware heat insulation layer. The wiring terminal 802 of the heating tube extending out of the fixed flange and the shaded pole motor are connected to the PCB control component 9 in the machine head through a circuit. The hardware heat insulation layer is provided with installation holes formed by stamping. The installation holes include cold air ventilation holes, microswitch through holes, water vapor discharge holes, heating tube clamp fixing holes, fuse fixing holes, NTC temperature sensing probe fixing holes, positioning pin through holes and / or screw through holes.

[0020] During use, the pot body assembly is taken out of the air fryer through the handle. After the food is placed on the grill of the pot body assembly, the pot body is put back into the machine body through the handle. Finally, press the cooking button corresponding to the control panel at the PCB control component, and the corresponding food in the pot body can be automatically processed and cooked.

Claims

1. A novel integrated fan blade for a cooking utensil, the fan blade body (3) comprising a cold air blade (301) and a hot air blade (302), the cold air blade of the body being in the form of a cylindrical disk, the cold air blade of the body being provided with equidistantly distributed oblique grids on the cylindrical surface thereof, the body being arranged between a metal insulation layer (4) and a plastic insulation layer (2) at a head of the machine body, a shaded pole motor (1) being provided at the top of the body in the head, the motor shaft of the shaded pole motor being connected to the body via the plastic insulation layer, a heating pipe (8) being provided in a groove at the metal insulation layer above the pot mouth of a pot body assembly (5) in the machine body; characterized in that The top of the outer side of the disk surface or the bottom of the inner side of the disk surface of the body (3) is provided with an integral hot air blade (302); the sheet body (3021) of the hot air blade is bent outwardly, or is bent outwardly and extends out of the cold air blade rectangular through hole of the top disk surface at the cold air blade (301); the hot air blade rectangular through hole on one side of the bottom of the sheet body is aligned with the cold air blade rectangular through hole of the top disk surface at the cold air blade of the body; the sheet body is equidistantly distributed outwardly in a blade-like manner with the motor shaft insertion holes of the cold air blade and the hot air blade as the center.

2. The novel integrated fan blade for cooking utensils according to claim 1 is characterized in that The hot air blade (302) of the main body (3) is a metal blade formed by stamping a metal plate, and the sheet body (3021) of the hot air blade is formed by integrally stamping and bending outwards corresponding to the rectangular through hole of the hot air blade.

3. The novel integrated fan blade for cooking utensils according to claim 1 is characterized in that The cold air blades (301) of the main body (3) are plastic cross-flow blades that are integrally injection-molded, or metal cross-flow blades that are formed by stamping and coiling at the opening of the plate.

4. The novel integrated fan blade for cooking utensils according to claim 1 is characterized in that The edge step of the disk surface of the main body (3) is limited to the central hole of the metal insulation layer (4), and the sheet (3021) of the hot air blade (302) of the main body extends out of the central hole of the metal insulation layer, and the cold air blade (301) of the main body is located in the cold air channel of the plastic insulation layer (2).

5. The novel integrated fan blade for cooking utensils according to claim 4 is characterized in that The cold air channel of the plastic heat insulation layer (2) is sunken in a ring shape, and the inner wall of the cold air channel is provided with cold air inlet holes (201) distributed at equal intervals, and the cold air inlet holes are aligned with the cold air blades (301) of the body (3) in the cold air channel. The shaded-pole motor is arranged on a motor fixing sinking platform (202) sunken at the top of the plastic heat insulation layer, and the motor shaft of the shaded-pole motor (1) is connected to the motor shaft jack of the body through the motor shaft through hole (203) in the middle of the motor fixing sinking platform on the plastic heat insulation layer, and a cold air outlet is provided on one side of the cold air channel of the plastic heat insulation layer.

6. The novel integrated fan blade for cooking utensils according to claim 1 is characterized in that The top of the metal insulation layer (4) is punched to form a boss and a circular groove at the step, the bottom notch of the plastic insulation layer (2) is sleeved on the circular groove at the step at the top of the metal insulation layer, a punched hole for mounting a fixed flange (801) at one end of the heating tube (8) is provided on one side of the center hole at the top boss of the metal insulation layer, the plug-in terminal (802) of the heating tube extending from the fixed flange and the shaded-pole motor (1) are connected to the PCB control component (9) in the machine head through a line, and the metal insulation layer is provided with mounting holes formed by punching, the mounting holes comprising a cold air ventilation hole, a micro switch through hole, a water vapor exhaust hole, a heating tube clamp fixing hole, a fuse fixing hole, an NTC temperature sensor fixing hole, a positioning pin through hole and / or a screw through hole.

7. The novel integrated fan blade for cooking utensils according to claim 1, characterized in that The pot body assembly (5) is arranged in a cavity with an opening on one side of the machine body, a handle (7) on one side of the pot body assembly extends out of the opening on one side of the machine body, and a grill (6) is provided at the bottom of the inner pot of the pot body assembly.

Images