Stewing type air fryer with bottom heating function
By designing a stewing-style inner pot assembly with bottom heating in the air fryer, the problem of the difficulty in stewing existing air fryers has been solved, and the sealing of the inner pot assembly and the life of the components have been improved. It is suitable for a variety of body structures.
Patent Information
- Application Number
- CN202520394323.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-07
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2035-03-07
AI Technical Summary
Existing air fryers are difficult to use with an inner pot structure for stewing, and the inner pot structure lacks a lid for stewing, which affects sealing and component lifespan.
Design a stewing-type air fryer with bottom heating. The inner pot assembly can be used for both air frying and stewing. The upper part of the inner pot is equipped with a fan and an electric heating element, and the bottom heating element is an IH coil heating plate or an electric heating element. The inner pot lid has an exhaust hole, and the machine body is equipped with a steam channel and an NTC temperature sensor to achieve sealing and temperature control.
It enables flexible switching between air frying and stewing cooking methods, improves the sealing of the inner pot assembly and the lifespan of components, and is suitable for left-right or top-bottom dual-cavity body structures.
Smart Images

Figure CN223799675U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to air fryer, it is a kind of stew formula air fryer with bottom heating. BACKGROUND
[0002] Air fryer is a kind of new type household appliance using high-speed air circulation technology to food, and the food made by it can reduce 80% oil compared with traditional electric fryer, easy to clean in daily use, safe and economical, and it is favored by people. Some air fryers on the market realize bottom heating through the IH coil heating disc at bottom, such as Chinese patent document disclosed in application publication No.CN119257464A, application publication date 2025.01.07, invention name "bottom IH coil heating disc air fryer". The inner pot bottom of the air fryer is provided with soup pot, so as to have inner pot steam cooking function. Some air fryers realize steam cooking function through the spray hole at upper portion or bottom in pot body and water tank of machine head. Even if some air fryers of them are provided with sealed pot cover at inner pot, it still needs the spray hole at bottom to realize steam generation and cooking. But the above-mentioned products and similar products are less used for stewing mode cooking with inner pot structure, and such stewing cooking mode is same as steam cooking mode, and the sealing requirement in machine body is higher, and the hole diameter at fan blade and heating pipe is easy to produce steam flow channel, so as to affect the service life and use of parts. At the same time, stewing cooking mode is different from steam cooking mode, and generally needs to realize the heating of inner pot through bottom heating element, without the design of spray structure. SUMMARY
[0003] To overcome the above-mentioned shortcomings, the utility model aims at providing a kind of stew formula air fryer with bottom heating to the field, so that it solves the technical problems that existing air fryer product is difficult to use inner pot structure for stewing mode cooking, and the inner pot structure under stewing mode cooking lacks pot cover setting. Its purpose is realized by the following technical scheme.
[0004] The application discloses a stewing type air fryer with bottom heating, which is characterized in that a inner pot assembly is arranged in the opening of one side of the body of the air fryer; the structure design points of the air fryer are as follows: the inner pot assembly is a stewing and frying pot assembly, or the inner pot assembly is a replaceable stewing pot assembly, the inner pot in the corresponding inner pot assembly is a stewing and frying integrated pot or a stewing pot, and at least a first fan blade and an electric heating pipe are arranged in the recesses on the top or back of the metal heat insulation layer above the inner pot of the inner pot assembly, and the first fan blade is connected with the motor shaft of the motor penetrating through the metal heat insulation layer; a bottom heating element is arranged at the bottom of the metal heat insulation layer below the inner pot of the body, the bottom heating element is an IH coil heating disc, a cast iron / aluminum electric heating disc or another electric heating pipe, the bottom heating element is connected with the controller circuit board in the body through a line together with the motor and the electric heating pipe; when the bottom heating element is the IH coil heating disc, a heat dissipation fan is arranged below the IH coil heating disc in the body, a PCB circuit board is arranged in the heat dissipation fan, an NTC temperature sensor is arranged at the center of the IH coil heating disc, and the end of the NTC temperature sensor is in contact with the bottom of the inner pot; an inner pot cover is arranged at the opening of the inner pot of the inner pot assembly, and an exhaust hole is arranged on one side of the inner pot cover, so that the air fryer can be used as a single cavity structure, the above structure can be used as an air frying cooking mode and can also be used as a stewing cooking mode, the same inner pot assembly or the corresponding inner pot assembly can be used in the two modes, when the stewing cooking mode is used, the soup and rice pot with the pot cover and the exhaust hole on one side of the pot cover does not need to be put into the inner pot assembly, the air frying or stewing functions can be realized through the inner pot assembly, the electric heating pipe above the inner pot assembly is convenient for steam drying removal during stewing cooking, or the steam is discharged through the steam passage under the double cavity structure, and when the bottom heating element is the IH coil heating disc, the IH electromagnetic module of the IH coil heating disc can further generate a magnetic field to induct a ferrite, generate resistance and large current, and the coil circuit board triggers the IH coil heating disc, the motor and the electric heating pipe to work, that is, the IH coil heating disc is used as a micro switch.
[0005] The body is a left-right double cavity body or an up-down double cavity body, the inner pot assembly is arranged on one side of the left-right double cavity body or the bottom or top of the up-down double cavity body, and the other cavity in the corresponding side of the inner pot assembly is provided with an air frying cavity mechanism or a steam frying cavity mechanism.
[0006] The corresponding fan blade and electric heating pipe above the inner pot assembly on one side of the left-right double cavity body and on the bottom or top of the up-down double cavity body are omitted. The above structure makes the independent stewing side cavity have better sealing performance, is less affected by other components and has a longer service life; meanwhile, the inner pot cover can also be omitted.
[0007] Further, the exhaust hole top of the inner pot cover of the inner pot assembly is provided with a steam sealing ring, the steam sealing ring is fixedly arranged at one end of the steam channel part, one steam channel opening, another NTC temperature sensor is arranged at the top of the steam channel part at the end, another steam channel opening at the other end of the steam channel part extends to one side of the machine body, and the steam channel part is fixedly arranged in the machine body.
[0008] The inner pot cover of the inner pot assembly is sealingly and sunkenly buckled and fixed to the pot opening of the inner pot, or one side of the inner pot cover is hingedly fixed to one side of the pot opening of the inner pot, and the cover opening or the cover opening below the cover opening is provided with a pot cover sealing ring.
[0009] One side of the inner pot cover of the inner pot assembly is hingedly fixed to one side of the shell of the inner pot, and an inner container is arranged in the shell of the inner pot; the shell of the inner pot is directly placed into the opening on one side of the machine body, or the shell of the inner pot is slid into the slide rail on one side of the opening of the machine body through the lifting ears symmetrically arranged on two sides, or is directly placed into the openings on one side and two walls of the machine body.
[0010] The outer diameter of the inner pot assembly on one side of the opening of the machine body is provided with a handle, and a corresponding cover shell is arranged, so that the inner pot assembly is convenient to access, and the machine body has good integrity.
[0011] The top or back of the metal heat insulation layer in the machine body is provided with a second fan blade, the second fan blade and the first fan blade are connected through the motor shaft penetrating the metal heat insulation layer, the second fan blade is connected with the controller circuit board in the machine body through a line; the first fan blade is a hardware centrifugal stirring fan blade or a metal wind wheel stirring fan blade, the second fan blade is a plastic centrifugal heat dissipation fan blade or a metal centrifugal heat dissipation fan blade, the first fan blade is arranged in a corresponding air guide cover, and the second fan blade is arranged in a corresponding heat dissipation cover. The above is an embodiment of the air fryer with double fan blades, which can also be applied to the corresponding left and right double-cavity machine body and the upper and lower double-cavity machine body.
[0012] The metal heat insulation layer above the inner pot of the inner pot assembly is provided with another NTC temperature sensor, so that the temperature of the cavity center point is mapped through the temperature of the NTC temperature sensor, and the temperature of the cavity center point is accurately controlled.
[0013] The utility model discloses structure design is reasonable, application range is wide, and the structure form is various, and air fry, stewing is convenient to use, and it is suitable to be used as stewing formula air fryer with bottom heating, and the structure improvement of similar products. DRAWINGS
[0014] Figure 1 It is the working principle structure schematic diagram of embodiment one of the utility model.
[0015] Figure 2 It is Figure 1 The partial explosion structure schematic diagram of the use state of embodiment one of the utility model, and part of the machine body is omitted in the drawing.
[0016] Figure 3 is Figure 2 The improved partial explosion structure diagram of the embodiment two, wherein the IH coil heating disc is replaced by a cast iron / aluminum electric heating disc.
[0017] Figure 4 is the working principle structure diagram of the embodiment two of the utility model.
[0018] Figure 5 is Figure 4 The main component explosion structure diagram of the embodiment two, wherein the machine body and the handle are omitted.
[0019] Figure 6 is Figure 5 The cross section structure diagram of the embodiment three in use state, wherein the machine body is a left-right double cavity machine body.
[0020] Figure 7 is the improved three-dimensional structure diagram of the inner pot assembly of the utility model.
[0021] Figure 8 is Figure 7 The inner pot assembly explosion structure diagram, wherein the machine body inner steam passage piece and other related components are added.
[0022] Figure 9 is Figure 8 The cross section structure diagram of the embodiment four in use state, wherein the machine body is an up-down double cavity machine body, and an NTC temperature sensor is added at the IH coil heating disc.
[0023] Figure 10 is Figure 9 The right view structure diagram.
[0024] Figure 11 is Figure 8 The cross section structure diagram of the embodiment five in use state two, wherein the machine body is another up-down double cavity machine body, and an NTC temperature sensor is added at the IH coil heating disc.
[0025] Figure 12 is Figure 11 The improved structure diagram, wherein the IH coil heating disc is replaced by a cast iron / aluminum electric heating disc.
[0026] Drawing serial number and name: 1, inner pot assembly, 101, inner pot cover, 1011, exhaust hole, 102, inner pot, 1021, outer shell, 1022, inner container, 103, handle, 104, pot cover sealing ring, 2, machine body, 3, motor, 4, first fan blade, 5, second fan blade, 6, electric heating tube, 7, IH coil heating disc, 8, heat dissipation fan, 9, NTC temperature sensor, 10, cast iron / aluminum electric heating disc, 11, steam passage piece, 12, steam sealing ring. Implementation
[0027] The structure and use of this utility model will now be further described with reference to the accompanying drawings. Figures 1-3 In the first embodiment shown, the air fryer body 2 has an inner pot assembly 1 inside an opening on one side. The inner pot assembly is either a stewing and frying pot assembly or a replacement stewing and cooking pot assembly. The inner pot 102 in the corresponding inner pot assembly is either a stewing and frying pot or a stewing and cooking pot. The groove on the back of the metal insulation layer above the inner pot of the inner pot assembly has a first fan blade 4, a second fan blade 5, and an electric heating tube 6. The first fan blade and the second fan blade are connected by a motor shaft at a motor 3 that passes through the metal insulation layer. A bottom heating element is provided at the bottom of the metal insulation layer below the inner pot of the body. The bottom heating element is an IH coil heating plate 7 or a cast iron / aluminum electric heating plate 10. Furthermore, the bottom heating element can also be another electric heating tube. When the bottom heating element is an IH coil heating plate, a cooling fan 8 is installed inside the machine body below the IH coil heating plate. A PCB circuit board is installed inside the cooling fan. An NTC temperature sensor 9 may be installed at the center of the IH coil heating plate, with the protruding end of the NTC temperature sensor contacting the bottom of the inner pot. Another NTC temperature sensor 9 is installed on the metal heat insulation layer above the inner pot of the inner pot assembly. The corresponding components of the bottom heating element, along with the corresponding NTC temperature sensor, motor, and heating element, are connected to the controller circuit board inside the machine body via wiring. An inner pot lid 101 is provided at the opening of the inner pot of the aforementioned inner pot assembly. An exhaust vent 1011 is provided on one side of the inner pot lid. The inner pot lid of the inner pot assembly is sealed and fixed to the opening of the inner pot in a recessed manner. Simultaneously, a handle 103 and a corresponding cover are provided on the outer diameter of the inner pot assembly on the opening side of the machine body. The aforementioned second fan blade is located on top of the metal heat insulation layer inside the machine body. The first fan blade is a metal centrifugal stirring fan blade or a metal impeller stirring fan blade, and the second fan blade is a plastic centrifugal cooling fan blade or a metal centrifugal cooling fan blade. The first fan blade is located inside the corresponding air guide shroud, and the second fan blade is located inside the corresponding heat dissipation shroud.
[0028] like Figures 4-6 In the second and third embodiments shown, the groove at the top of the metal insulation layer above the inner pot of the inner pot assembly is provided with a first fan blade, a second fan blade, and an electric heating tube; furthermore, the above-mentioned machine body can also be a left and right double-cavity machine body, with the inner pot assembly disposed on one side of the left and right double-cavity machine body, and the other side cavity corresponding to the inner pot assembly is provided with an air frying cavity mechanism or a steam frying cavity mechanism.
[0029] like Figures 7-12In the fourth and fifth embodiments, the inner pot cover of the inner pot assembly is hingedly fixed to one side of the pot opening of the inner pot, and a pot cover sealing ring 104 is arranged on the cover opening of the inner pot cover or below the cover opening; specifically, the inner pot cover of the inner pot assembly is hingedly fixed to one side of the outer shell 1021 of the inner pot, and an inner container 1022 is arranged in the outer shell of the inner pot; the outer shell of the inner pot is directly placed into the opening on one side of the machine body, or the outer shell of the inner pot is slid into the sliding rail on one side of the opening of the machine body through the two symmetrically arranged lifting ears, or is directly placed into the opening on one side of the machine body and the openings on the two walls. The machine body is a double-cavity machine body, the inner pot assembly is arranged at the bottom of the double-cavity machine body, a steam sealing ring 12 is arranged at the top of the exhaust hole of the inner pot cover of the inner pot assembly, the steam sealing ring is fixedly arranged at one end of the bottom of the steam passage piece 11, and the other NTC temperature sensor arranged at the metal heat insulation layer above the inner pot of the inner pot assembly is arranged at the top of the steam passage piece at the end, the other steam passage opening at the other end of the steam passage piece extends out of one side of the machine body, and the steam passage piece is fixedly arranged in the machine body. At the same time, the corresponding fan blade and electric heating tube above the inner pot assembly at the bottom of the double-cavity machine body are omitted.
[0030] In addition to the functions and use modes of the air fryer, when the stewing function is adopted, the bottom heating body heats the inner pot, the liquid temperature of the inner pot rises, the food in the inner pot is stewed and cooked, and steam is generated, which is connected by the steam sealing piece, discharged to the outside of the machine through the steam passage, or dried and removed by the electric heating tube above the inner pot.
[0031] The above is intended to illustrate the technical means of the present application, and is not intended to limit the technical range of the present application. Those skilled in the art can make obvious improvements or replacements to the present application in combination with the existing common knowledge, which also falls within the protection scope of the claims of the present application.
Claims
1. A stewing air fryer with bottom heating, the body (2) of the stewing air fryer is provided with an inner pot assembly (1) in the open side; characterized in that The inner pot assembly (1) is a stewing and frying pot assembly, or the inner pot assembly is a replacement stewing pot assembly, and the inner pot (102) in the corresponding inner pot assembly is a stewing and frying integrated pot or a stewing pot. The top or back recess of the metal heat insulation layer above the inner pot of the inner pot assembly is provided with at least a first fan blade (4) and an electric heating tube (6). The first fan blade is connected through the motor shaft of the motor (3) penetrating the metal heat insulation layer. The bottom metal heat insulation layer of the body (2) is provided with a bottom heating element. The bottom heating element is an IH coil heating disc (7), a cast iron / aluminum electric heating disc (10) or another electric heating tube. The corresponding components of the bottom heating element, the motor and the electric heating tube are connected with the controller circuit board in the body through a line. When the bottom heating element is the IH coil heating disc, the body below the IH coil heating disc is provided with a cooling fan (8). The cooling fan is provided with a PCB circuit board. The center of the IH coil heating disc is provided with an NTC temperature sensor (9). The end of the NTC temperature sensor extends and abuts against the bottom of the inner pot. The pot opening of the inner pot of the inner pot assembly is provided with an inner pot cover (101). One side of the inner pot cover is provided with an exhaust hole (1011).
2. The bottom-heated braising air fryer of claim 1, wherein The body (2) is a left-right double-cavity body or an up-down double-cavity body. The inner pot assembly (1) is arranged on one side of the left-right double-cavity body or the bottom or top of the up-down double-cavity body. The other side cavity of the inner pot assembly is provided with an air-frying cavity mechanism or a steaming and frying cavity mechanism.
3. The bottom-heated braising air fryer of claim 2, wherein The body (2) is a left-right double-cavity body or an up-down double-cavity body. The inner pot assembly (1) on one side of the left-right double-cavity body and the bottom or top of the up-down double-cavity body is omitted with corresponding fan blades and electric heating tubes (5).
4. The bottom-heated braising air fryer of claim 3, wherein The top of the exhaust hole (1011) of the inner pot cover (101) of the inner pot assembly (1) is provided with a steam sealing ring (12). The steam sealing ring is fixedly arranged at one end of the bottom of the steam passage piece (11) and a steam passage opening. Another NTC temperature sensor (9) is arranged at the top of the steam passage piece at the end. Another steam passage opening at the other end of the steam passage piece extends to one side of the body (2). The steam passage piece is fixedly arranged in the body.
5. The bottom-heated braising air fryer of claim 1, wherein The inner pot cover (101) of the inner pot assembly (1) is sealingly and sunkenly buckled and fixed to the pot opening of the inner pot (102). Or one side of the inner pot cover of the inner pot assembly is hingedly fixed to one side of the pot opening of the inner pot. The cover opening of the inner pot cover or below the cover opening is provided with a pot cover sealing ring (104).
6. The bottom-heated braising air fryer of claim 5, wherein One side of the inner pot cover (101) of the inner pot assembly (1) is hingedly fixed to one side of the outer shell (1021) of the inner pot (102). The outer shell of the inner pot is provided with an inner container (1022). The outer shell of the inner pot is directly put into the opening of one side of the body (2), or the outer shell of the inner pot is slid into the sliding rail of one side of the opening of the body through the two symmetrically arranged lifting ears, or is directly put into the opening of one side of the body and the two walls.
7. The bottom-heated braising air fryer of claim 1, wherein The outer diameter of the inner pot assembly (1) on one side of the opening of the body (2) is provided with a handle (103) and a corresponding cover shell.
8. The bottom-heated braising air fryer of claim 1, wherein The top or back of the metal heat insulation layer in the machine body (2) is provided with a second fan blade (5), the second fan blade and the first fan blade (4) are connected through the motor shaft at the motor (3) penetrating the metal heat insulation layer, and the second fan blade is connected with the controller circuit board in the machine body through a line; the first fan blade is a hardware centrifugal stirring fan blade or a metal wind wheel stirring fan blade, the second fan blade is a plastic centrifugal heat dissipation fan blade or a metal centrifugal heat dissipation fan blade, the first fan blade is arranged in a corresponding air guide cover, and the second fan blade is arranged in a corresponding heat dissipation cover.
9. The bottom heated braising air fryer of claim 1, wherein Another NTC temperature sensor (9) is arranged on the metal heat insulation layer above the inner pot (102) of the inner pot assembly (1).
Citation Information
Patent Citations
Air fryer with IH coil heating plate at bottom
CN119257464A