An air fryer

Abstract

An air fryer, including a heating head part, having a cover, the cover including at least an upper shell, and a heating tube protection lower cover, the heating tube protection lower cover being arranged in the lower space of the cover through a heating tube support, the heating tube protection lower cover being provided with a plurality of heat air vents on the bottom, and a heating element cooperating to blow hot air into a hot air exhaust channel; an output motor is arranged in the upper shell, and a transmission shaft is fixed with a heating fan blade; characterized in that the cover is internally provided with a heating tube upper cover, thereby dividing the space in the cover into an upper cavity and a lower cavity; the lower cavity is used to arrange the heating tube and the heating fan blade; the upper cavity above the top of the heating tube upper cover is provided with a cold air assembly as a cooling mechanism; the cold air assembly includes a cooling fan blade, which is also fixed on the transmission shaft of the output motor; the upper shell and the motor cover are provided with a cold air outlet on the side, and the air outlet is arranged to communicate with the mixing chamber outside the mixing cover; after cooling, the mixed waste air is discharged through the exhaust port, the temperature of the waste gas is reduced, and the structure is reasonably arranged, thereby prolonging the service life of the electronic components, preventing accidental start, being easy to operate, and being safer.

Description

Technical Field

[0001] This utility model relates to the field of air fryer technology, and in particular to an air fryer. Background Technology

[0002] An air fryer is a cooking appliance that primarily heats and bakes food using rapidly circulating hot air. It utilizes air instead of the hot oil found in a frying pan to cook food; the hot air also removes surface moisture, achieving a similar effect to deep-frying. It can be understood as using high-temperature "air" as a medium to "fry" food. Air fryers on the market are mainly controlled by knobs or LCD touchscreens. The cooking process between the pot and the heating element is generally divided into two types: a semi-covered type and a covered type. With a semi-covered design, only the front of the pot is visible during cooking. While a covered type allows you to see the entire cooking process, the heating element is housed within the lid, leading to a cramped space and potentially reduced lifespan of electronic components due to heat dissipation issues over time. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide an air fryer in which, in addition to the hot air component, a cold air component is also provided in the lid to help the lid cool down quickly and to exhaust the exhaust gas at a lower temperature. Furthermore, the structure is reasonably arranged to extend the service life of electronic components.

[0004] The technical solution of this utility model is: an air fryer, comprising:

[0005] A heating head component has a cover, which includes at least an upper shell and a lower cover for a heating tube. The lower cover for the heating tube is installed in the lower part of the cover via a heating tube support. Multiple heat-permeable air vents are distributed at the bottom of the lower cover for hot air exhaust. A hot air assembly is installed in the upper shell, which includes a heating tube as a heating element and a heating fan blade to blow hot air into the hot air exhaust channel. An output motor is installed in the upper shell, and a drive shaft is provided at the bottom. The drive shaft is fixed with the heating fan blade.

[0006] The pot body is made of glass, and the top of the pot body and the lid are detachably assembled together.

[0007] A base is detachably mounted on the bottom of the pot body;

[0008] The feature is that: the cover body is provided with a heating tube cover, thereby dividing the internal space of the cover body into an upper cavity and a lower cavity; the lower cavity is used to arrange the heating tube and heating fan blades and their hot air outlet; the upper cavity above the top of the heating tube cover is provided with a cold air assembly as a cold air exhaust channel; the output motor is fixed above the top of the heating tube cover through a motor cover.

[0009] The lower part of the motor cover extends out of the bottom opening of the upper shell and continues to extend downward, thus forming the lower part of the cover, so that the motor cover and the upper shell are joined together to form the cover.

[0010] A cooling air assembly includes cooling fan blades, which are also fixed on the drive shaft of the output motor.

[0011] A cold air outlet is opened on the side of the upper shell and the motor cover, which is connected to the hot air outlet and arranged in the mixing chamber between the upper shell and the heating tube cover.

[0012] One exhaust vent is located outside the mixing chamber and is connected to the mixing chamber. After cooling, the mixed exhaust air is discharged through the exhaust vent.

[0013] Furthermore, the mixing chamber is equipped with a mixing cover that snaps onto the motor cover for easy assembly.

[0014] Furthermore, the top center of the upper shell is provided with a panel hole, and a control panel is fixed in the panel hole. The control panel is electrically connected to the output motor to realize the control function. Cold air inlets are distributed on the side of the panel hole to facilitate air intake.

[0015] Furthermore, the top of the output motor is equipped with a power board, which is located in a cool air exhaust channel that facilitates heat dissipation, preventing the heat generated by the output motor and its power board from affecting and reducing the lifespan of electronic components.

[0016] Furthermore, the rear surface of the upper shell is recessed to form a handle structure for easy use.

[0017] Furthermore, the motor cover is equipped with a switch base, in which a micro switch assembly is installed. The micro switch assembly includes micro switch contacts, which are located below the micro switch. An elastic gasket is provided on the top of the micro switch. A movable ring is fixed around the bottom of the heating element cover. The shape of the movable ring is roughly consistent with the rim of the pot, allowing the movable ring to fit with the rim of the pot. Multiple spring supports are distributed at intervals around the top of the movable ring, enabling the movable ring and the motor cover to achieve an elastic floating connection. The heating element cover has a fixing hole at a corresponding position, fixing a contact post. The contact post abuts against the contacts of the micro switch on the motor cover, improving safety during use.

[0018] Preferably, the switch housing is arranged diagonally on the motor cover, and two sets of micro switch assemblies are also arranged diagonally, so that the micro switch assemblies are installed in their own switch housings.

[0019] Furthermore, the cross-sectional shape of the spring bracket is mountain-shaped, with a spring column in the middle, on which a spring is fitted, so that the spring is supported between the spring bracket and the motor cover. The two sides of the spring bracket are buckles, which can be moved up and down to be fastened into the buckle seats of the motor cover.

[0020] Preferably, four spring supports are used, spaced apart at the top of the movable ring.

[0021] Furthermore, the bottom of the pot body is provided with multiple adhesive blocks through an adhesive application process, distributed in the corners of the pot body, and the top of the corresponding base is provided with a matching fixing groove to achieve limiting and fixing.

[0022] Furthermore, the base has a U-shaped cross-section, handles on both sides, and multiple anti-slip pads on the bottom.

[0023] Finally: A baking tray is placed inside the pot. The baking tray has fixing holes around its perimeter. The bottom surface of the corresponding L-shaped silicone feet has fixing buckles that match the baking tray to achieve a snap-fit ​​fixation and prevent the baking tray from directly contacting the bottom or wall of the pot.

[0024] Compared with existing technologies, the advantages of this application are as follows: A hot air exhaust channel and a cold air exhaust channel are designed inside the lid. The motor, power board, and control panel are all located within the cold air exhaust channel, allowing the cold air component to help dissipate heat from the motor, power board, and control panel, thereby reducing heat transfer from the heating element. It also works in conjunction with the hot air component to rapidly cool the exhaust air that needs to be discharged from the lid within the mixing chamber before expelling it from the air fryer, reducing safety hazards. Furthermore, an elastic floating mechanism that cooperates with the pot body is designed inside the lid, allowing the micro-switch component on the motor cover to work with it, preventing accidental heating activation when the pot and lid are not properly closed, further reducing safety hazards. The overall structure is compact and reasonable, easy to assemble, convenient to operate, and has good safety and reliability. Attached Figure Description

[0025] Figure 1 This is a front view of the present invention.

[0026] Figure 2 This is a schematic diagram of the exploded structure of this utility model.

[0027] Figure 3 This is a schematic diagram of the exploded structure of this utility model.

[0028] Figure 4 This is a schematic diagram of the exploded structure of the cover.

[0029] Figure 5 This is a schematic diagram of the exploded structure of the cover.

[0030] Figure 6 This is a schematic diagram of the exploded structure of the cover.

[0031] Figure 7 This is a cross-sectional view of the present invention.

[0032] Figure 8 A schematic diagram of the assembly of the spring bracket and the motor cover.

[0033] Figure 9 This is a side view of the silicone feet.

[0034] Figure 10 This is a three-dimensional sectional view of the silicone feet.

[0035] 1. Lid; 2. Upper shell; 3. Lower cover of heating element; 4. Hot air exhaust duct; 5. Hot air assembly; 6. Heating element; 7. Heating fan blades; 8. Output motor; 9. Drive shaft; 10. Pot body; 11. Cold air assembly; 12. Cooling fan blades; 13. Exhaust vent; 14. Handle structure; 15. Panel hole; 16. Control panel; 17. Power board; 18. Motor cover; 19. Microswitch assembly; 20. Microswitch contacts; 21. Elastic washer; 22. Movable ring. 23. Spring bracket; 24. Spring; 25. Rubber block; 26. Base; 27. Fixing groove; 28. Handle; 29. ​​Anti-slip feet; 30. Heating element lower cover; 31. Upper cavity; 32. Lower cavity; 33. Cold air exhaust duct; 34. Air inlet; 35. Hot air outlet; 36. Cold air outlet; 37. Mixing chamber; 38. Mixing cover; 39. Clip seat; 40. Contact post; 41. Baking tray; 42. Fixing clip; 43. Silicone feet; 44. Fixing buckle. Detailed Implementation

[0036] The embodiments of this utility model patent will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model patent, but should not be construed as limiting its scope. In the description of this utility model patent, unless otherwise stated, "multiple" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model patent. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0037] In the description of this utility model patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention patent based on the specific circumstances.

[0038] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0039] like Figures 1 to 10 An air fryer includes a base 26, a pot body 10, and a heating head assembly. The heating head assembly has a cover 1, which includes at least an upper shell 2 and a lower heating tube cover 30. The lower heating tube cover 30 is disposed in the lower space inside the cover 1 via a heating tube support 31. The bottom of the lower heating tube cover 30 has multiple heat-permeable air vents, serving as a hot air exhaust channel 4. A hot air assembly 5 is disposed in the upper shell 2, including a heating tube 6 as a heating element and a heating fan blade 7, which work together to blow hot air into the hot air exhaust channel 4. An output motor 8 is disposed in the upper shell 2, with a bottom... A drive shaft 9 is provided, and a heating fan blade 7 is fixed to the drive shaft 9. The pot body 10 is made of glass material, and the top of the pot body 10 is detachably assembled with the lid 1. The key improvement is that the lid 1 has a heating tube cover 3 inside, which divides the internal space of the lid 1 into an upper cavity 31 and a lower cavity 32. The lower cavity is used to arrange the heating tube 6 and the heating fan blade 7. A cold air assembly 11 is provided in the upper cavity above the top of the heating tube cover 3 to form a cold air exhaust duct 33. At the same time, the output motor 8 is also fixed to the top of the heating tube cover 3 through a motor cover 18. At that time, the lower part of the motor cover 18 extends out of the bottom opening of the upper shell 2 and continues to extend downward, thus forming the lower part of the cover 1. The motor cover 18 and the upper shell 2 are connected by screws to form the cover 1. The cold air assembly 11 includes a cooling fan blade 12, which is also fixed on the drive shaft 9 of the output motor 8. However, it is set above the top of the heating tube cover 3. Thus, the drive shaft 9 of the output motor 8 is equipped with the cooling fan blade 12 and the heating fan blade 7 from top to bottom. The cooling fan blade 12 and the heating fan blade 7 are respectively arranged above and below the heating tube cover 3. Correspondingly, a hot air outlet 35 is provided on the side of the heating tube cover 3, and a cold air outlet 36 is provided on the side of the upper shell 2 and the motor cover 18. They are connected to the mixing chamber 37 arranged between the upper shell 2 and the heating tube cover 3. The mixing chamber can be a mixing cover 38, which is fixed on the cover 1. Usually, the mixing cover 38 is connected to the motor cover by a snap-fit ​​structure. The exhaust port 13 is located on the outside of the mixing cover and communicates with the mixing chamber. After cooling, the mixed exhaust air is discharged through the exhaust port 13. In this way, the cold air assembly 11 and the hot air assembly 5 cooperate to achieve cooling and exhaust.

[0040] The top center of the upper shell 2 has a panel hole 15, within which a control panel 16 is fixed. The control panel 16 is electrically connected to the output motor 8 to achieve control functions. Furthermore, air inlets 34 are distributed along the sides of the panel hole 15, communicating with the upper cavity. A power board 17 is located on the top of the output motor 8 to prevent the heat from the output motor 8 and its power board 17 from affecting and reducing the lifespan of electronic components. A concave surface is provided on the rear surface of the upper shell 2 to form a handle structure 14. This handle structure 14 is recessed at the rear of the upper shell 2, resulting in a simple and aesthetically pleasing design.

[0041] The motor cover 18 is provided with a micro switch assembly 19. Preferably, there are two sets of micro switch assemblies 19 arranged diagonally. Each assembly includes a micro switch contact 20, which is located below the micro switch. The micro switch has an elastic pad 21 on top. Furthermore, a switch base is arranged diagonally on the motor cover 18 so that the micro switch assembly 19 is installed in its own switch base. The lower part of the cover 1 and the outer periphery of the heating tube lower cover 3 are elastically floatingly connected together. The bottom of the heating tube lower cover 3 is fixed with a movable ring 22. The shape of the movable ring 22 is roughly the same as the rim of the pot body 10, so that the movable ring 22 can fit with the rim of the pot body 10. Multiple spring supports 23 are distributed at intervals on the top of the movable ring 22. The cross-sectional shape of the spring support 23 is roughly in the shape of a mountain. The middle part is a spring column with a spring 24 sleeved on it, so that the spring 24 is supported between the spring support 23 and the motor cover 18. The two sides of the spring support 23 are buckles, which can be movably fastened into the buckle seat 39 of the motor cover 18, so that the movable ring 22 and the motor cover 18 are elastically floatingly connected. At the same time, the heating tube upper cover 3 has a fixing hole at the corresponding position, which fixes the abutment post 40 and abuts against the contact 20 of the micro switch on the motor cover 18. In this way, when the heating head component is placed on top of the pot body 10, the two micro switch components 19 will be in the closed state to allow the hot air component 5 to work. When the pot body 10 is separated from the heating head component or is not in the correct position, at least one micro switch component 19 will be in the open state to prevent the hot air component 5 from being started accidentally.

[0042] To facilitate positioning and fixation of the glass pot body 10 and prevent accidental slippage, multiple adhesive blocks 25 are applied to the bottom of the pot body 10 using an adhesive process. Typically, four blocks are used, distributed at the four corners of the pot body. The top of the corresponding base 26 has a matching fixing groove 27 for limiting and fixing. A baking tray 41 is placed inside the pot body 10. The baking tray 41 has four fixing holes 42 around its perimeter. The bottom surface of the corresponding inverted L-shaped silicone feet 43 has a fixing buckle 44 that matches the hole for locking and fixing, preventing the baking tray 41 from directly contacting the bottom or wall of the pot.

[0043] A base 26 is detachably mounted on the bottom of the pot body 10. The base 26 has a U-shaped cross-section and handles 28 on both sides. The bottom of the base 26 is provided with multiple anti-slip pads 29, preferably four anti-slip pads 29.

[0044] When using this product, the user needs to place the base 26 horizontally on a table or other horizontal surface, then place the pot body 10 in the base 26, and then place the heating head component on the pot body 10 containing the food. Due to gravity, the movable ring 22 around the lower cover 3 of the heating tube comes into contact with the rim of the pot body 10, causing the spring 24 to be compressed, thereby causing the upper cover 3 of the heating tube to float upward, driving the contact post to contact the micro switch component 19 on the motor cover 18. At this time, the micro switch component 19 will be in the closed state, allowing the hot air component 5 to work. The user starts the hot air component 5 through the control panel, and the output motor 8 drives the hot air component 5 to blow hot air into the hot air exhaust channel 4, thereby blowing it onto the food for cooking. At the same time, the cold air component 11 also works, mixing hot air and cold air in the mixing chamber to reduce the temperature of the exhaust gas, and the exhaust gas is finally discharged from the exhaust port 13.

Claims

1. An air fryer, comprising: A heating head component has a cover, which includes at least an upper shell and a lower cover for a heating tube. The lower cover for the heating tube is installed in the lower part of the cover via a heating tube support. Multiple heat-permeable air vents are distributed at the bottom of the lower cover for hot air exhaust. A hot air assembly is installed in the upper shell, which includes a heating tube as a heating element and a heating fan blade to blow hot air into the hot air exhaust channel. An output motor is installed in the upper shell, and a drive shaft is provided at the bottom. The drive shaft is fixed with the heating fan blade. The pot body is made of glass, and the top of the pot body and the lid are detachably assembled together. A base is detachably mounted on the bottom of the pot body; Its features are: The cover has a heating tube cover inside, which divides the internal space of the cover into an upper cavity and a lower cavity; the lower cavity is used to arrange the heating tube, heating fan blades and their hot air outlet; the upper cavity above the top of the heating tube cover has a cold air assembly as a cold air exhaust channel; the output motor is fixed above the top of the heating tube cover through a motor cover. The lower part of the motor cover extends out of the bottom opening of the upper shell and continues to extend downward, thus forming the lower part of the cover, so that the motor cover and the upper shell are joined together to form the cover. A cooling air assembly includes cooling fan blades, which are also fixed on the drive shaft of the output motor. A cold air outlet is opened on the side of the upper shell and the motor cover, which is connected to the hot air outlet and arranged in the mixing chamber between the upper shell and the heating tube cover. One exhaust vent is located outside the mixing chamber and is connected to the mixing chamber. After cooling, the mixed exhaust air is discharged through the exhaust vent.

2. An air fryer according to claim 1, characterized in that... The mixing chamber is fitted with a mixing cover that is snapped onto the motor cover.

3. An air fryer according to claim 1, characterized in that... The top center of the upper shell has a panel hole, and a control panel is fixed inside the panel hole. The control panel is electrically connected to the output motor to realize the control function. Cold air inlets are distributed on the side of the panel hole.

4. An air fryer according to claim 1, characterized in that... The output motor is equipped with a power board on top, which is located in a cool air exhaust channel that facilitates heat dissipation.

5. An air fryer according to claim 1, characterized in that... The rear surface of the upper shell is recessed to form a handle structure.

6. An air fryer according to claim 1, characterized in that... The motor cover is equipped with a switch base, in which a micro switch assembly is installed. The micro switch assembly includes micro switch contacts located below the micro switch. An elastic gasket is provided on the top of the micro switch. A movable ring is fixed around the bottom of the heating element cover. The shape of the movable ring is roughly the same as the rim of the pot, allowing the movable ring to fit with the rim of the pot. Multiple spring supports are distributed at intervals around the top of the movable ring, enabling the movable ring and the motor cover to achieve an elastic floating connection. The heating element cover has a fixing hole at a corresponding position, fixing a contact post. The contact post engages with the contacts of the micro switch on the motor cover.

7. An air fryer according to claim 6, characterized in that... The switch housings are arranged diagonally on the motor cover. Two sets of micro switch assemblies are also arranged diagonally, so that the micro switch assemblies are installed in their own switch housings.

8. An air fryer according to claim 6, characterized in that... The spring bracket has a mountain-shaped cross-section, with a spring column in the middle that houses the spring, which is supported between the spring bracket and the motor cover. The two sides of the spring bracket have buckles that can be movably fastened into the buckle holes of the motor cover.

9. An air fryer according to claim 8, characterized in that... The spring brackets are four in number, spaced apart at the top of the movable ring.

10. An air fryer according to claim 1, characterized in that... The bottom of the pot body is provided with multiple adhesive blocks through an adhesive application process, which are distributed in the corners of the pot body. The top of the corresponding base is provided with a matching fixing groove to achieve limiting and fixing.

11. An air fryer according to claim 1, characterized in that... The base has a U-shaped cross-section, with handles on both sides, and multiple anti-slip pads on the bottom.

12. An air fryer according to claim 1, characterized in that... The pot contains a baking tray with fixing holes around its perimeter. The bottom surface of the corresponding L-shaped silicone feet has a fixing buckle that matches the baking tray to achieve a snap-fit ​​fixation and prevent the baking tray from directly contacting the bottom or wall of the pot.

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