Air fryer

Abstract

The utility model discloses an air fryer, which relates to the field of life electric appliances, solves the problem that the pressure state of a cooking cavity can be changed manually, and adopts the technical scheme that the air fryer mainly comprises a machine body, the machine body is provided with the cooking cavity and a mounting cavity which are separated from each other, and an exhaust component is arranged in the mounting cavity and comprises a pressure valve and a switch valve; the pressure valve and the switch valve are arranged in parallel, the cooking cavity is communicated with an external space through the pressure valve or the switch valve, the pressure valve is kept normally closed and is opened after the pressure intensity of the cooking cavity exceeds a threshold value, the switch valve comprises a driving motor and a first valve element, and a driving gear is arranged on an output shaft of the driving motor; a driven gear meshed with the driving gear is arranged on the first valve element, and the driving motor drives the first valve element to open or close the switch valve. The utility model is mainly used for realizing the automation of the switching of different pressure states of the cooking cavity by arranging the driving motor capable of driving the switch valve to move.

Description

Technical Field

[0001] The utility model relates to the field of household electrical appliances, in particular to an air fryer. Background Art

[0002] In the past, air fryers usually adopted normal pressure cooking. In order to meet the cooking requirements of different ingredients, existing air fryers are provided with a device capable of switching the internal pressure state of the cooking chamber, so as to realize the free switching between the normal pressure cooking mode and the micro-pressure cooking mode of the cooking chamber. For example, the prior art CN219629414U discloses an air fryer, comprising a body, the body being provided with a closed cooking chamber and a connecting channel connecting the cooking chamber with the external space, the connecting channel comprising a first channel, a second channel and an air outlet channel, the first channel and the second channel being connected with the external space through the air outlet channel, the first channel being provided with a pressure control device to keep the first channel normally closed. A pressure valve is provided in the second channel, and the switch rotary valve has an open valve position for keeping the second channel normally open and a closed valve position for keeping the second channel normally closed. When pressure cooking is required, the switch rotary valve only needs to be switched to the closed valve position. At this time, both the first channel and the second channel are in a closed state, and the cooking cavity is isolated from the external space, thereby increasing the pressure in the cooking cavity. After the pressure in the cooking cavity is greater than the threshold value of the pressure valve, the cooking cavity is connected with the external space through the first channel and the air outlet channel to achieve pressure relief, thereby keeping the pressure in the cooking cavity constant. However, this air fryer needs to rely on manual operation to change the pressure state of the cooking cavity. Utility Model Content

[0003] The utility model aims to provide an air fryer, which solves the problem that the pressure state of the cooking chamber can only be changed manually, and realizes the automation of switching between different pressure states of the cooking chamber by setting a driving motor that can drive the switch valve to move.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an air fryer includes a body, the body has a cooking cavity and an installation cavity separated from each other, an exhaust assembly is arranged in the installation cavity, the exhaust assembly includes a pressure valve and a switch valve, the pressure valve and the switch valve are arranged in parallel, the cooking cavity is connected to the external space through the pressure valve or the switch valve, the pressure valve remains normally closed and opens after the pressure in the cooking cavity exceeds a threshold value, the switch valve includes a driving motor and a first valve core, a driving gear is arranged on the output shaft of the driving motor, a driven gear meshing with the driving gear is arranged on the first valve core, and the driving motor drives the first valve core to open or close the switch valve.

[0005] After adopting the above technical scheme, the utility model has the following advantages: by setting a driving motor to drive the first valve core, the opening and closing switching of the switch valve is realized automatically, the output shaft of the driving motor is provided with a driving gear, and the first valve core is provided with a driven gear for meshing, when crispy baking cooking is required, the driving motor drives the first valve core to open the switch valve, at this time the cooking chamber is connected with the external space, and normal pressure cooking is carried out to keep the cooking chamber at normal pressure. Under normal pressure, the water vapor in the cooking chamber will be discharged to the external space, ensuring that French fries and other food with high water content can be quickly dehydrated and browned; when tender baking cooking is required, the driving motor drives the first valve core to close the switch valve, and the cooking chamber is connected with the external space. The pressure in the cooking chamber increases to a certain level for pressurized cooking. Only when the pressure in the cooking chamber exceeds the opening threshold of the pressure valve will the pressure valve open to release the pressure. Therefore, the water vapor in the cooking chamber is not easily discharged. At this time, the cooking chamber is disconnected from the external space, and micro-pressure cooking is performed, which can effectively maintain the freshness of meat ingredients and obtain cooked products that are crispy on the outside and tender on the inside. The gear transmission provides a stable and accurate transmission method for the opening and closing of the switch valve. The switch valve can switch automatically and quickly and accurately, which improves the user experience. There is no need to set exposed manual operating parts, the shell of the machine body no longer needs to have holes, the structural integrity is better, and there is no need to consider waterproofing issues, and the overall appearance is more beautiful.

[0006] Furthermore, the pressure valve includes a second valve core, the exhaust assembly includes a first shell and a second shell, the first shell is connected to the second shell and forms a first valve cavity and a second valve cavity, the first valve core is installed in the first valve cavity, and the second valve core is installed in the second valve cavity.

[0007] By adopting the above-mentioned technical solution, the first shell body is connected to the second shell body to form two valve chambers, and the valve chambers are independent of each other and do not interfere with each other. The pressure valve and the switch valve share a valve body structure, which not only saves space but also simplifies the installation structure. The exhaust component is divided into a first valve chamber and a second valve chamber, each of which adjusts the pressure state of the cooking chamber respectively. The first valve chamber of the switch valve cooperates with the first valve core to increase the pressure in the cooking chamber; the second valve chamber of the pressure valve cooperates with the second valve core to control the pressure state of the cooking chamber within a safe range.

[0008] Furthermore, the first shell is provided with an air inlet channel connected to the first valve cavity and the second valve cavity, and the air inlet channel is connected to the cooking cavity; and / or the second shell is provided with an air outlet channel connected to the first valve cavity and the second valve cavity, and the air outlet channel is connected to the external space.

[0009] By adopting the above-mentioned technical solution, the air inlet channel and the air outlet channel are both connected to the first valve cavity and the second valve cavity, which shortens the total length of the channel, simplifies the channel structure, and is conducive to the miniaturization of the exhaust component structure. The setting of the air inlet channel and the air outlet channel enables the cooking cavity to introduce or exhaust gas according to demand, adjust the cooking environment in the cooking cavity, and prevent insufficient humidity in the cooking cavity or excessive accumulation of steam in the cooking cavity from affecting the cooking effect.

[0010] Furthermore, the second housing is provided with a first limiting rib and a second limiting rib, and the first valve core is provided with a limiting portion, which rotates with the first valve core and moves between the first limiting rib and the second limiting rib.

[0011] By adopting the above-mentioned technical solution, the first limiting rib and the second limiting rib cooperate with the limiting part of the first valve core to limit the movement range of the first valve core, prevent the first valve core from rotating too much, ensure the accurate opening and closing switching of the switch valve, and improve the overall stability and reliability of the system.

[0012] Furthermore, the driving motor is fixed to the second shell, and the second shell is provided with a mounting groove for accommodating the driving motor.

[0013] By adopting the above-mentioned technical solution, the mounting groove accommodates the driving motor, which can reduce the overall space height occupied by the switch valve, and is conducive to the miniaturization of the switch valve.

[0014] Furthermore, the second shell protrudes laterally relative to the first shell to form a mounting portion, and the mounting groove is located in the mounting portion.

[0015] By adopting the above technical solution, the first shell can avoid the drive motor, making the overall structure of the exhaust assembly more compact.

[0016] Furthermore, a mounting bracket is provided in the mounting cavity, and a fastener passes through the drive motor, the second housing and is connected to the mounting bracket in sequence, thereby fixing the three into one.

[0017] By adopting the above technical solution, the drive motor and the second housing can be synchronously fixed in one installation, which simplifies the installation steps of the drive motor and the second housing and improves the installation efficiency.

[0018] Furthermore, the mounting bracket is provided with a support column connected to the fastener, and the drive motor passes through the mounting slot and is suspended and fixed by the support column.

[0019] By adopting the above-mentioned technical solution, the support column suspends and fixes the drive motor, which can more effectively utilize the internal space of the installation cavity and improve the heat dissipation effect of the drive motor, while reducing the possibility of the drive motor transmitting vibration to other components.

[0020] Furthermore, the exhaust assembly includes a micro switch, and the first valve core is provided with a triggering portion that can trigger the micro switch.

[0021] By adopting the above-mentioned technical solution, a triggering part that can trigger the microswitch is set on the first valve core, so that the microswitch can be triggered under specific conditions, the position of the first valve core can be judged in time, and the opening and closing status of the switch valve can be determined, thereby achieving precise control of the exhaust component.

[0022] Further, the pressure valve includes a second valve core, and the pressure valve uses the gravity of the second valve core to keep the pressure valve normally closed; or, the pressure valve includes a second valve core and an elastic member, and the elastic member acts on the second valve core to keep the pressure valve normally closed.

[0023] By adopting the above-mentioned technical solution, the pressure valve utilizes the gravity of the second valve core to remain normally closed. Gravity is relatively insensitive to external interference, the reliability of the pressure valve is improved, the number of parts is reduced, and the structure is simple. The elastic part applies precise force to the second valve core, and due to the flexibility of the elastic part, the sensitivity of the pressure valve can be adjusted by selecting a suitable elastic part to meet different usage requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The utility model is further described below in conjunction with the accompanying drawings:

[0025] Figure 1 This is a schematic diagram of the structure of the air fryer of the utility model;

[0026] Figure 2 It is a structural schematic diagram of the exhaust assembly in the utility model (I);

[0027] Figure 3 This is a schematic diagram of the structure of the exhaust assembly in the utility model (II);

[0028] Figure 4 This is a disassembled diagram of the exhaust assembly in the utility model;

[0029] Figure 5 It is a side view of the exhaust assembly in the utility model;

[0030] Figure 6 It is a cross-sectional view of the exhaust assembly in the utility model;

[0031] Figure numerals: body 1, switch valve 21, drive motor 211, output shaft 2111, first valve core 212, limiting portion 2121, driving gear 213, driven gear 214, pressure valve 22, second valve core 221, first shell 23, air inlet channel 231, mounting portion 232, second shell 24, first limiting rib 241, second limiting rib 242, mounting groove 243, air outlet channel 244, micro switch 25, support column 26, fastener 27, first sealing member 281, second sealing member 282. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0033] The terms "first", "second", etc. (if any) in the specification and claims of the present utility model are used to distinguish similar objects, rather than to describe a specific order or sequence. Even if "second" is used to distinguish a certain technical feature, it does not necessarily mean that it has "first". It should be understood that in the present utility model, "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. It should be understood that in the present utility model, "multiple" refers to two or more. "And / or" is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, X and / or Y can represent: X exists alone, X and Y exist at the same time, and Y exists alone. The character " / " generally indicates that the related objects before and after are in an "or" relationship. "Contains X, Y and Z", "Contains X, Y, Z" means that X, Y, and Z are all included, "Contains X, Y or Z" means that one of X, Y, and Z is included, and "Contains X, Y and / or Z" means that any one, any two, or three of X, Y, and Z are included.

[0034] The following specific embodiments are used to describe the technical solution of the utility model in detail. The following specific embodiments can be combined or replaced with each other according to actual conditions, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0035] like Figures 1 to 6As shown, the utility model provides an air fryer, including a body 1, the body 1 has a cooking cavity and an installation cavity separated from each other, an exhaust assembly is arranged in the installation cavity, the exhaust assembly includes a pressure valve 22 and a switch valve 21, the pressure valve 22 and the switch valve 21 are arranged in parallel, the cooking cavity is connected with the external space through the pressure valve 22 or the switch valve 21, the pressure valve 22 remains normally closed and opens after the pressure in the cooking cavity exceeds a threshold value, the switch valve 21 includes a driving motor 211 and a first valve core 212, a driving gear 213 is arranged on the output shaft 2111 of the driving motor 211, a driven gear 214 meshing with the driving gear 213 is arranged on the first valve core 212, and the driving motor 211 drives the first valve core 212 to open or close the switch valve 21. The driving motor 211 is arranged to drive the first valve core 212, so as to realize the automatic opening and closing switching of the switch valve 21. The output shaft 2111 of the driving motor 211 is provided with a driving gear 213, and the first valve core 212 is provided with a driven gear 214 for meshing. When crispy baking cooking is required, the driving motor 211 drives the first valve core 212 to open the switch valve 21. At this time, the cooking cavity is connected with the external space, and normal pressure cooking is performed to keep the cooking cavity at normal pressure. Under normal pressure, the water vapor in the cooking cavity will be discharged to the external space, ensuring that the food with high water content such as French fries can be quickly dehydrated and browned; when tender baking cooking is required, the driving motor 211 drives the first valve core 212 to close the switch valve 21. The pressure in the cooking cavity is closed, and pressure cooking is performed when the pressure in the cooking cavity increases to a certain level. Only when the pressure in the cooking cavity exceeds the opening threshold of the pressure valve 22, the pressure valve 22 will open to release the pressure. Therefore, the water vapor in the cooking cavity is not easily discharged. At this time, the cooking cavity is disconnected from the external space, and micro-pressure cooking is performed, which can effectively maintain the freshness and tenderness of meat ingredients and obtain cooked products that are crispy on the outside and tender on the inside. The gear transmission provides a stable and accurate transmission method for the opening and closing of the switch valve 21. The switch valve 21 can switch automatically quickly and accurately, and the user experience is improved. There is no need to set exposed manual operating components, and the shell of the machine body 1 no longer needs to be opened. The structural integrity is better, and there is no need to consider waterproofing issues, and the overall appearance is more beautiful.

[0036] In this embodiment, the pressure valve 22 includes a second valve core 221, and the exhaust assembly includes a first shell 23 and a second shell 24. The first shell 23 and the second shell 24 are connected to form a first valve cavity and a second valve cavity. The first valve core 212 is installed in the first valve cavity, and the second valve core 221 is installed in the second valve cavity. The first shell 23 and the second shell 24 are connected to form two valve cavities. The pressure valve and the switch valve share a valve body structure, which not only saves space but also simplifies the installation structure. The pressure valve 22 and the switch valve 21 are integrated into an exhaust assembly, which can effectively reduce the volume of the exhaust assembly, facilitate the installation of the exhaust assembly, and save the manufacturing cost of the exhaust assembly. The valve cavities are independent of each other and do not interfere with each other. The pressure state of the cooking cavity is adjusted respectively. The first valve cavity of the switch valve 21 cooperates with the first valve core 212 to increase the pressure in the cooking cavity; the second valve cavity of the pressure valve 22 cooperates with the second valve core 221 to control the pressure state of the cooking cavity within a safe range.

[0037] Specifically, the pressure valve 22 utilizes the gravity of the second valve core 221 to remain normally closed. Since gravity is relatively insensitive to external interference, the pressure valve 22 has a small number of parts, a simple structure and high reliability, and can maintain a stable normally closed state without interfering with the switch valve 21.

[0038] It is understandable that in other embodiments, an elastic member may be provided to act on the second valve core 221 to keep the pressure valve 22 normally closed. Due to the flexibility of the elastic member, the sensitivity of the pressure valve 22 may be adjusted by selecting a suitable elastic member to meet different usage requirements.

[0039] To facilitate the adjustment of the gas state in the cooking cavity, the first shell 23 is provided with an air inlet channel 231 connected to the first valve cavity and the second valve cavity, the air inlet channel 231 is connected to the cooking cavity, and the second shell 24 is provided with an air outlet channel 244 connected to the first valve cavity and the second valve cavity, the air outlet channel 244 is connected to the external space, and both the air inlet channel 231 and the air outlet channel 244 can be connected to the first valve cavity and the second valve cavity, shortening the channel length, simplifying the channel structure, and facilitating the miniaturization of the structure. The setting of the air inlet channel 231 and the air outlet channel 244 enables the cooking cavity to introduce or exhaust gas according to demand, adjust the cooking environment in the cooking cavity, and prevent insufficient humidity in the cooking cavity or excessive accumulation of steam in the cooking cavity from affecting the cooking effect.

[0040] Specifically, the second shell 24 is provided with a first limiting rib 241 and a second limiting rib 242, and the first valve core 212 is provided with a limiting portion 2121. The limiting portion 2121 rotates with the first valve core 212 and moves between the first limiting rib 241 and the second limiting rib 242. The first limiting rib 241 and the second limiting rib 242 cooperate with the limiting portion 2121 of the first valve core 212 to limit the movement range of the first valve core 212 and prevent the first valve core 212 from rotating too much, thereby ensuring accurate opening and closing switching of the switch valve 21 and improving the overall stability and reliability of the system.

[0041] In order to ensure effective sealing between the first shell 23 and the second shell 24 and reduce possible wear between the first valve core 212 and the second shell 24, a first seal 281 is provided between the first shell 23 and the second shell 24, and a second seal 282 is provided between the first valve core 212 and the second shell 24. In this embodiment, the first seal 281 and the second seal 282 are both rubber rings.

[0042] In this embodiment, the drive motor 211 is fixed to the second shell 24, and the second shell 24 is provided with an installation groove 243 for accommodating the drive motor 211. The installation groove 243 accommodates the drive motor 211, which can reduce the overall space height occupied by the switch valve 21, which is conducive to the miniaturization of the switch valve 21. The drive motor 211 is directly fixed to the second shell 24, which can simplify the component structure and reduce the risk of the drive motor 211 loosening or swinging during operation.

[0043] In addition, in order to improve the stability of the overall structure of the exhaust assembly, the second shell 24 protrudes laterally relative to the first shell 23 to form a mounting portion 232, and the mounting groove 243 is located at the mounting portion 232. The second shell 24 protrudes laterally relative to the first shell 23 to form the mounting portion 232, which provides an additional support structure. The first shell 23 can avoid the drive motor 211, making the overall structure of the exhaust assembly more compact, and also helps to improve the overall stability of the exhaust assembly.

[0044] Specifically, a mounting bracket is provided in the mounting cavity, and the fastener 27 passes through the drive motor 211 and the second housing 24 in sequence and is connected to the mounting bracket to fix the three together. The drive motor 211 and the second housing 24 are synchronously fixed in one installation, which simplifies the installation steps of the drive motor 211 and the second housing 24 and improves the installation efficiency. The installation bracket and the fastener 27 enhance the stability of the exhaust assembly installation, reduce the relative displacement between the components, and make the operation of the drive motor 211 reliable.

[0045] Specifically, the mounting bracket is provided with a support column 26 connected to a fastener 27, and the drive motor 211 passes through the mounting slot 243 and is suspended and fixed by the support column 26. The support column 26 suspends and fixes the drive motor 211, which can more effectively utilize the internal space of the mounting cavity and improve the heat dissipation effect of the drive motor 211, while reducing the possibility of the drive motor 211 transmitting vibration to other components.

[0046] In order to improve the accuracy of control, in this embodiment, the exhaust assembly includes a micro switch 25, and a triggering portion that can trigger the micro switch 25 is provided on the first valve core 212. By providing a triggering portion that can trigger the micro switch 25 on the first valve core 212, the micro switch 25 can be triggered under specific conditions, the position of the first valve core 212 can be judged in time, and the opening and closing status of the switch valve 21 can be determined, thereby achieving accurate control of the exhaust assembly.

[0047] In addition to the above-mentioned preferred embodiments, the present invention also has other implementation modes. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope of protection requested by the present invention.

Claims

1. An air fryer, comprising a body, the body having a cooking cavity and a mounting cavity separated from each other, an exhaust assembly being arranged in the mounting cavity, the exhaust assembly comprising a pressure valve and a switch valve, the pressure valve and the switch valve being arranged in parallel, the cooking cavity being connected to an external space through the pressure valve or the switch valve, the pressure valve being kept normally closed and being opened when the pressure in the cooking cavity exceeds a threshold value, It is characterized in that The switch valve comprises a driving motor and a first valve core. The output shaft of the driving motor is provided with a driving gear. The first valve core is provided with a driven gear meshing with the driving gear. The driving motor drives the first valve core to open or close the switch valve.

2. The air fryer according to claim 1, It is characterized in that The pressure valve includes a second valve core, the exhaust assembly includes a first shell and a second shell, the first shell is connected to the second shell and forms a first valve cavity and a second valve cavity, the first valve core is installed in the first valve cavity, and the second valve core is installed in the second valve cavity.

3. The air fryer according to claim 2, It is characterized in that The first shell is provided with an air inlet passage communicating with the first valve cavity and the second valve cavity, and the air inlet passage is communicated with the cooking cavity; and / or the second shell is provided with an air outlet passage communicating with the first valve cavity and the second valve cavity, and the air outlet passage is communicated with the external space.

4. The air fryer according to claim 2, It is characterized in that The second housing is provided with a first limiting rib and a second limiting rib, and the first valve core is provided with a limiting portion, which rotates with the first valve core and moves between the first limiting rib and the second limiting rib.

5. The air fryer according to claim 2, It is characterized in that The driving motor is fixed to the second shell, and the second shell is provided with a mounting groove for accommodating the driving motor.

6. The air fryer according to claim 5, It is characterized in that The second shell body protrudes laterally relative to the first shell body to form a mounting portion, and the mounting groove is located at the mounting portion.

7. The air fryer according to claim 2, It is characterized in that A mounting bracket is arranged in the mounting cavity, and a fastener passes through the driving motor, the second housing and is connected with the mounting bracket in sequence, thereby fixing the three into one body.

8. The air fryer according to claim 7, It is characterized in that The mounting bracket is provided with a supporting column connected with a fastener, and the driving motor passes through the mounting slot and is suspended and fixed by the supporting column.

9. The air fryer according to claim 1, It is characterized in that The exhaust assembly includes a micro switch, and a triggering portion capable of triggering the micro switch is provided on the first valve core.

10. The air fryer according to claim 1, It is characterized in that The pressure valve comprises a second valve core, and the pressure valve is kept normally closed by the gravity of the second valve core; or, the pressure valve comprises a second valve core and an elastic member, and the elastic member acts on the second valve core to keep the pressure valve normally closed.

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