CN221180197U - Hot air convection circulation type air fryer - Google Patents
Hot air convection circulation type air fryer Download PDFInfo
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- CN221180197U CN221180197U CN202321674669.XU CN202321674669U CN221180197U CN 221180197 U CN221180197 U CN 221180197U CN 202321674669 U CN202321674669 U CN 202321674669U CN 221180197 U CN221180197 U CN 221180197U
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Abstract
The utility model relates to a hot air convection circulation type air fryer, which comprises a fryer body, a fryer, a heating device, a wind wheel device and a control system, wherein a circulation air duct is arranged in the fryer body, a plurality of ventilation openings are formed in the left side wall and the right side wall of the fryer, and the circulation air duct comprises a return air duct attached to the left side wall of the fryer, a heating air duct attached to the right side wall of the fryer and a return air duct; the wind wheel device is arranged in the return air duct, and the air inlet of the wind wheel device corresponds to the return air inlet; the heating air duct is provided with an air outlet corresponding to the right side wall vent, and the heating device is arranged in the heating air duct and corresponds to the air outlet; the air fryer improves the phenomenon that the upper surface effect is better and the lower surface effect is poor on foods cooked by the existing air fryers in the market, and overcomes the defect that the existing air fryers in the market cannot provide balanced frying and baking for two or more layers of foods.
Description
Technical Field
The utility model relates to the field of kitchen appliance manufacturing, in particular to a hot air convection circulation type air fryer.
Background
FIG. 1 is a schematic diagram of a conventional air fryer in the market, wherein the basic structure comprises a fryer 100, a fryer chassis 102, an electric heating tube 102, a fan 103 and a fan motor 104, and the heating device of the air fryer of the structure is arranged on the upper surface, and the air is stirred by the rotation of the fan to enable the hot air to sink along the side wall area of the fryer, and the hot air flows upwards along the central area of the fryer.
Disclosure of Invention
The utility model aims to solve the existing problems and provide the hot air convection circulation type air fryer which is simple and reasonable in structure and has the main effects of improving the phenomenon that the upper surface effect of foods cooked by the existing air fryer in the market is better and the lower surface effect is poor, and overcoming the defect that the balanced frying and baking of two or more layers of foods cannot be provided.
The utility model provides a hot-blast convection current circulation formula air fryer, includes the pot body, fryer, heating device, wind wheel device and control system, be equipped with the circulation wind channel in the pot body, the fryer is arranged in the circulation wind channel, and all offered a plurality of air vent that supplies the air to cross on its left side wall and the right side wall, the vent can be by gap or aperture constitution.
The circulating air duct comprises an air return air duct attached to the left side wall of the fryer, a heating air duct attached to the right side wall of the fryer, and a return air duct for conducting the air return air duct and the heating air duct; the wind wheel device is arranged in the return air duct, and the air inlet of the wind wheel device corresponds to the return air inlet; the air outlet is formed in the heating air duct corresponding to the vent hole in the right side wall, the heating device is arranged in the heating air duct, and the heating device corresponds to the air outlet.
The aim of the utility model can be also solved by adopting the following technical measures:
As a more specific scheme, the return air duct connected between the air outlet of the return air duct and the air inlet of the heating air duct may be formed by any one of the front return air duct, the rear return air duct, and the lower return air duct alone, or by any combination of two or more of the front return air duct, the rear return air duct, and the lower return air duct.
The front backflow air duct is characterized in that the side wall of the front backflow air duct is attached to the front side wall of the fryer, an air inlet pipe orifice of the front backflow air duct is connected with a front air outlet pipe orifice of the return air duct, and an air outlet pipe orifice of the front backflow air duct is connected with a front air inlet pipe orifice of the heating air duct.
The rear reflux air duct is characterized in that the side wall of the rear reflux air duct is attached to the rear side wall of the fryer, the air inlet pipe opening of the rear reflux air duct is connected with the rear air outlet pipe opening of the return air duct, and the air outlet pipe opening of the rear reflux air duct is connected with the rear air inlet pipe opening of the heating air duct.
The lower reflux air duct is attached to the lower part of the bottom of the frying pan, the air inlet pipe opening of the lower reflux air duct is connected with the bottom air outlet of the return air duct, and the air outlet pipe opening of the lower reflux air duct is connected with the bottom air inlet of the heating air duct.
As a further proposal, the circulating air duct is defined and formed by surrounding air duct components, and the air duct components are made of metal materials or high-temperature resistant nonmetallic materials.
As a further scheme, the cross section of the cavity of the circulating air duct is rectangular.
As a further proposal, the outer surfaces of all the side walls of the circulating air duct, which are not attached to the frying pan, are coated with high-temperature resistant heat insulation materials.
As a further solution, the heating means is an electric heater for converting thermal energy by electric energy or a gas heat exchanger for converting thermal energy by gas.
As a further scheme, the electric heater mainly comprises a resistance heating structure, and the resistance heating structure is an electric heating tube.
As a further scheme, the gas heat exchanger comprises a plurality of thin pipes which are vertically arranged at intervals and penetrate through the upper pipe wall and the lower pipe wall of the heating air duct, the thin pipes form a heat pipe matrix structure, the gas heat exchanger in the heating air duct can also be of other non-heat pipe matrix structures, and a pipe type combustion furnace end, a gas valve and an ignition device are arranged below the gas heat exchanger.
The flame of the combustion of the tubular combustion furnace head passes through each heat pipe in the heat pipe matrix structure from bottom to top, so that each heat pipe generates high temperature, and the high temperature heat pipe matrix enables the air flow in the heating air duct to be heated to high temperature.
The fuel gas can be tank butane gas, natural gas or liquefied petroleum gas.
As a further scheme, the frying pan is internally provided with a cavity, a convection air channel is formed between the air outlet and the air return opening through the cavity, the convection air channel forms a part of a circulating air channel, and the frying pan is assembled and disassembled in the convection air channel in a drawing mode through the side of the pan body or is assembled and disassembled in the convection air channel in a sinking mode through the upper part of the pan body.
The control system is connected with the wind wheel motor and the electric heater or with a gas valve and an ignition device in the gas heat exchanger, and the control system realizes various frying functions of the thermal cycle air fryer by regulating and controlling the power and duration of the heating device.
The main working mechanism of the air circulation air fryer is as follows:
The circulating air channel is formed by the return air channel, the return air channel and the heating air channel which are connected through the cavity, and the circulating air channel is attached to the fryer between the return air inlet of the return air channel and the air outlet of the heating air channel, so that air in the inner cavity of the fryer forms closed convection circulation through the circulating air channel.
When the heating device works, the wind wheel motor is electrified, the centrifugal wind wheel rotates, air in the fryer is sucked into the return air duct, air flow with certain air pressure is generated in the return air duct, the air flow is forced to enter the heating air duct along the return air duct, and the air is heated by the heating device in the heating air duct and enters the fryer again, so that convection circulation of hot air in the fryer is formed, continuous heating is achieved, and continuous high-temperature air convection circulation type cooking is formed for food in the fryer.
The beneficial effects of the utility model are as follows:
1. the phenomenon that the upper surface effect is better and the lower surface effect is poor when the existing air fryer is used for frying food in the market is improved.
2. Overcomes the defect that the prior air fryer in the market can not uniformly fry and bake two or more layers of foods.
3. The gas can be used as a heating source to produce and manufacture gas-type air fryer products.
Drawings
FIG. 1 is a schematic diagram of the basic structure of a current air fryer product in the market today.
Fig. 2 is a schematic top view of a back-flow duct alone as a back-flow duct.
FIG. 3 is a schematic top view of a combination of a front return air duct and a rear return air duct as a return air duct.
Fig. 4 is a schematic front view of a structure in which a lower return air duct is solely used as the return air duct.
Fig. 5 is a schematic diagram of a heating device with an electrothermal tube structure.
FIG. 6 is a schematic view of a heating device in the form of a heat pipe matrix and a tubular burner.
Fig. 7 is a basic structure and a hot air circulation schematic of embodiment 1.
Fig. 8 is a basic structure and a hot air circulation schematic of embodiment 2.
Fig. 9 is a basic structure and a hot air circulation schematic of embodiment 3.
Fig. 10 is a basic structure and a hot air circulation schematic of embodiment 4.
Fig. 11 is a basic structure and a hot air circulation schematic of embodiment 5.
Fig. 12 is a right side view appearance schematic diagram of example 5.
The reference numerals of fig. 1 are: 100 is the fryer, 102 is the fryer chassis, 102 is the electrothermal tube, 103 is the fan, 104 is the fan motor.
The reference numerals of fig. 2 to 12 are: 10 is a pot body, 20 is a fryer, 20-1 is a vent of the left side wall of the fryer, 20-2 is a vent of the right side wall of the fryer, 20-3 is a fryer cover or a top observation window, 20-4 is a oven door, 30 is a heating device, 30-1 is an electric heating tube, 30-2 is a gas heat exchanger, 30-2-1 is a tube type combustion oven head, 40 is a control system, 50-1 is a return air duct, 50-2 is a heating air duct, 50-3 is a return air duct, 50-3-1 is a front return air duct, 50-3-2 is a rear return air duct, 50-3-3 is a lower return air duct, 50-4 is a high temperature resistant heat insulation material, 60 is a centrifugal wind wheel, and 60-1 is a wind wheel motor.
Detailed Description
The utility model will be further described with reference to the drawings and examples.
Specific example 1:
As shown in fig. 2 to 5 and 7: the utility model provides a hot-blast convection current circulation formula air fryer, includes pot body 10, fryer 20, heating device 30, wind wheel device and control system 40, be equipped with the circulation wind channel in the pot body 10, fryer 20 is arranged in the circulation wind channel, and all offered a plurality of air vent 20-1, 20-2 that supply the air to cross on its left side wall and the right side wall, air vent 20-1, 20-2 can be by gap or aperture constitution.
The circulating air duct comprises an air return air duct 50-1 attached to the left side wall of the fryer, a heating air duct 50-2 attached to the right side wall of the fryer, and a return air duct 50-3 for conducting the air return air duct 50-1 and the heating air duct 50-2; the air return duct 50-1 is provided with an air return opening 50-1-1 corresponding to the air vent 20-1 on the left side wall, the wind wheel device is arranged in the air return duct 50-1, and the air inlet of the wind wheel device corresponds to the air return opening 50-1-1; an air outlet 50-2-1 is formed in the heating air duct 50-2 corresponding to the air vent 20-2 in the right side wall, the heating device 30 is arranged in the heating air duct 50-2, and the heating device 30 corresponds to the air outlet 50-2-1.
The rear return air duct 50-3-2 is employed alone as the return air duct 50-3.
The circulating air duct is formed by surrounding and limiting an air duct component, and the air duct component is made of a metal material or a high-temperature-resistant nonmetallic material.
The cross section of the cavity of the circulating air duct is rectangular.
The outer surfaces of all the side walls, which are not attached to the frying pan, of the circulating air duct are coated with high-temperature-resistant heat insulation materials 50-4.
The heating device 30 adopts the structure of an electric heating tube 30-1.
In order to achieve a sufficiently high frying temperature of the closed circulating air through the fryer, the full power of the heating tube 30-1 is between 1300W and 2500W.
The frying pan 20 is installed and removed in the frying air duct in a drawing mode through the side of the pan body 10 or in the frying air duct in a sinking mode through the upper part of the pan body 10.
The wind wheel device comprises a wind wheel motor 60-1 and a centrifugal wind wheel 60 connected to an output shaft of the wind wheel motor, an air inlet of the centrifugal wind wheel 60 corresponds to the air return opening 50-1-1, and the control system 40 is connected with the wind wheel motor 60-1 and an electric heater.
When the air fryer is electrified, a certain frying function is selected and then started, the electric heating tube 30-1 is electrified and heated, the centrifugal wind wheel 60 rotates to suck air in the inner cavity of the fryer 20 into the return air duct 50-1, and air flow with certain air pressure is generated in the return air duct, the air flow is forced to enter the heating air duct 50-2 along the return air duct 50-3-1, the air is heated by the electric heating tube 30-1 in the heating air duct 50-2 and then enters the inner cavity of the fryer 20 again, so that the air in the inner cavity of the fryer 20 is continuously heated in a convection circulation mode, and the air convection circulation type high Wen Pengzha or baking is formed for food in the fryer.
The control system 40 controls the power and duration of the electric heating tube 30-1 to achieve various cooking functions of the hot air convection circulation air fryer by selecting different cooking functions.
Specific example 2:
As shown in fig. 8, the embodiment 2 is structurally characterized in that a combination of a front return air duct 50-3-1 and a rear return air duct 50-3-2 is adopted as the return air duct 50-3, 2 centrifugal wind wheels 60 are arranged in a cavity of the return air duct 50-2-1, 2 wind wheel motors 60-1 are also arranged, the fryer 20 enters the fryer body in a sinking manner through the upper part of the fryer body 10, the rest of the structure is the same as that of the embodiment, and the hot air circulation and the frying process of food are basically the same as that of the embodiment 1.
And 3, specific implementation:
As shown in FIG. 9, the embodiment 3 is characterized in that a lower return air duct 50-3-3 is used as the separate return air duct 50-3, the fryer 20 is drawn into the fryer body through the front side of the fryer body 10 or is sunk into the fryer body through the upper side of the fryer body 10, the rest of the structure is the same as that of the embodiment, and the hot air circulation and the cooking process of food are basically the same as that of the embodiment 1.
And (4) specific implementation:
As shown in FIG. 10, embodiment 4 is characterized in that a gas heat exchanger 30-2 is used as a heating device as shown in FIG. 6, and a tube type burner 30-2-1, a gas control valve and an ignition device are also provided.
Since the lower wall of the heating duct 50-2 is occupied by the gas heat exchanger 30-2, embodiment 4 cannot employ the structure of the lower return duct, but can employ the structure of the rear return duct, or the combined structure of the front and rear return ducts.
In order to achieve a sufficiently high cooking temperature of the closed circulating air through the fryer, the full heat capacity of the tubular burner is between 2000W and 5000W.
The control system 40 is connected with the wind wheel motor 60-1, the gas control valve and the ignition device, and the control system realizes various cooking functions of the gas thermal cycle air fryer by controlling the opening size and the duration of the gas control valve.
The hot air circulation of example 4 and the frying process of the food were also substantially identical to example 1.
And (5) specific implementation:
As shown in fig. 11 and 12, the embodiment 5 is structurally characterized in that the fryer is replaced by a larger-sized oven liner, a plurality of layers of baking nets are arranged in the oven liner, an openable glass door is arranged in front of the pot body, a rear reflux air duct or a lower reflux air duct can be used as a separate reflux air duct, a rear reflux air duct and a lower reflux air duct can be used as combined reflux air ducts, and the rest of the structures are the same as those of the embodiment 1.
The hot air circulation of example 5 and the baking process for food were also substantially identical to the frying process of example 1.
The foregoing is a preferred embodiment of the utility model showing and describing the general principles, features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the foregoing embodiments, which have been described in the foregoing embodiments and description merely illustrates the principles of the utility model, and various changes and modifications may be made therein without departing from the spirit and scope of the utility model as defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a hot-blast convection current circulation formula air fryer, includes pot body (10), fryer (20), heating device (30), wind wheel device and control system (40), be equipped with the circulation wind channel in the pot body (10), in the circulation wind channel was arranged in to fryer (20), and all offered a plurality of air supply air vent (20-1, 20-2) that cross on its left side wall and the right side wall, its characterized in that: the circulating air duct comprises an air return air duct (50-1) attached to the left side wall of the fryer, a heating air duct (50-2) attached to the right side wall of the fryer, and a return air duct (50-3) for conducting the air return air duct (50-1) and the heating air duct (50-2); the air return duct (50-1) is provided with an air return opening (50-1-1) corresponding to the ventilation opening (20-1) on the left side wall of the fryer (20), the wind wheel device is arranged in the air return duct (50-1), and the air inlet of the wind wheel device corresponds to the air return opening (50-1-1); an air outlet (50-2-1) is formed in the heating air duct (50-2) corresponding to the ventilation opening (20-2) in the right side wall of the fryer (20), and the heating device (30) is arranged in the heating air duct (50-2) and corresponds to the air outlet (50-2-1).
2. The heated air convection circulation air fryer of claim 1, wherein: the backflow air duct (50-3) is formed by any one of a front backflow air duct (50-3-1), a rear backflow air duct (50-3-2) and a lower backflow air duct (50-3-3) singly or by any combination of two or more of the front backflow air duct (50-3-1), the rear backflow air duct (50-3-2) and the lower backflow air duct (50-3-3).
3. The heated air convection circulation air fryer of claim 1, wherein: the circulating air duct is formed by surrounding and limiting an air duct component, and the air duct component is made of a metal material or a high-temperature-resistant nonmetallic material.
4. The heated air convection circulation air fryer of claim 1, wherein: the cross section of the cavity of the circulating air duct is rectangular.
5. The heated air convection circulation air fryer of claim 1, wherein: the outer surfaces of all the side walls, which are not attached to the frying pan, of the circulating air duct are coated with high-temperature-resistant heat insulation materials (50-4).
6. The heated air convection circulation air fryer of claim 1, wherein: the heating device (30) is an electric heater for converting heat energy by electric energy or a gas heat exchanger (30-2) for converting heat energy by gas.
7. The heated air convection circulation air fryer of claim 6, wherein: the electric heater mainly comprises a resistance heating structure, and the resistance heating structure is an electric heating tube (30-1).
8. The heated air convection circulation air fryer of claim 6, wherein: the gas heat exchanger (30-2) comprises a plurality of thin pipes which are vertically arranged at intervals and penetrate through the upper pipe wall and the lower pipe wall of the heating air duct (50-2), the plurality of thin pipes form a heat pipe matrix structure, and a pipe type combustion furnace end (30-2-1), a gas valve and an ignition device are arranged below the gas heat exchanger (30-2).
9. The heated air convection circulation air fryer of claim 1, wherein: the frying pan is characterized in that a cavity is arranged in the pan body (10), a frying air channel is formed between the air outlet (50-2-1) and the air return opening (50-1-1) through the cavity, the frying air channel forms a part of the circulating air channel, and the frying pan (20) is arranged in the frying air channel in a drawing mode through the side of the pan body (10) or is arranged in the frying air channel in a sinking mode through the upper part of the pan body (10).
10. The heated air convection circulation air fryer of claim 6, wherein: the control system (40) is connected with the wind wheel motor (60-1) and an electric heater or connected with a gas valve and an ignition device in the wind wheel motor (60-1) and the gas heat exchanger (30-2), and the control system (40) realizes various frying functions of the thermal cycle air fryer through regulating and controlling the power and duration of the heating device (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321674669.XU CN221180197U (en) | 2023-06-28 | 2023-06-28 | Hot air convection circulation type air fryer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321674669.XU CN221180197U (en) | 2023-06-28 | 2023-06-28 | Hot air convection circulation type air fryer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221180197U true CN221180197U (en) | 2024-06-21 |
Family
ID=91516237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321674669.XU Active CN221180197U (en) | 2023-06-28 | 2023-06-28 | Hot air convection circulation type air fryer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221180197U (en) |
-
2023
- 2023-06-28 CN CN202321674669.XU patent/CN221180197U/en active Active
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