Air fryer using static electricity to separate oil smoke
By installing an electrostatic adsorption device inside the air fryer, oil fume particles are adsorbed onto the honeycomb collection plate, solving the problems of oil accumulation and oil fume emission, and achieving efficient oil fume purification and convenient cleaning.
Patent Information
- Application Number
- CN202610115224.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-28
- Publication Date
- 2026-03-20
AI Technical Summary
Existing air fryers tend to accumulate grease and emit fumes directly during use, affecting user health and kitchen air quality.
An electrostatic adsorption device is installed inside the air fryer. The electrostatic electrode needle module charges the oil fume particles and adsorbs them onto the honeycomb collection plate under the action of an electric field, thereby achieving efficient capture of oil fumes.
It effectively removes cooking fumes, improves purification efficiency, simplifies cleaning and maintenance processes, and improves the cooking environment.
Smart Images

Figure CN121694585A_ABST
Abstract
Description
Technical Field
[0001] The present invention belongs to the technical field of air fryers, and particularly relates to an air fryer that applies a detachable electrostatic adsorption device to adsorb and separate oil fume. Background Art
[0002] An air fryer is a kitchen appliance that uses high-speed circulating hot air to heat and cook food, and forms a crispy texture similar to frying on the surface of the food through the continuous action of high-temperature air flow. However, during the long-term use of existing air fryers, a large amount of grease is likely to accumulate inside, and the oil fume-containing gas is directly discharged into the indoor environment during operation, which affects the health of users and the air quality in the kitchen. Summary of the Invention
[0003] To solve the above technical problems existing in the prior art, meet the need for washing a small number of dishes, improve the cleanliness of the dishes, and enhance the convenience of residue disposal, the present invention provides an air fryer that applies electrostatic separation of oil fume. The air fryer of the present invention sets an electrostatic adsorption device at key positions in the exhaust or the inner cavity, makes the oil fume particles charged through high-voltage ionization, and is directionally adsorbed onto the collection plate under the action of an electric field, thereby achieving efficient capture of oil fume.
[0004] The technical solution adopted by the present invention to solve its technical problems is as follows:
[0005] An air fryer that applies electrostatic separation of oil fume, including an air fryer body, characterized in that an electrostatic adsorption device is provided in the inner cavity of the air fryer body, and the electrostatic adsorption device is detachably arranged at the upper part of the inner cavity of the air fryer; wherein:
[0006] The air fryer body includes a housing (11), a frying basket (12), a fan (13), and a heating wire (14). The housing (11) has an inner cavity. The frying basket (12) is slidably arranged in the inner cavity of the housing (11). A handle is provided on the part of the frying basket (12) exposed outside the housing (11). The handle is integrated with a button. When the user presses the button, the frying basket (12) can be taken out of or put into the housing (11). The fan (13) and the heating wire (14) are both installed in the inner cavity of the housing (11) and are located above the frying basket (12). The heating wire (14) is arranged in a "return" shape around the fan (13). After being powered on, the heating wire (14) generates radiant heat, and the fan (13) operates to blow hot air downward to the frying basket (12) area, and a forced circulating hot air flow is formed in the inner cavity of the housing (11), thereby achieving uniform heating of food;
[0007] The electrostatic adsorption device includes an electrostatic collection module (21) and an electrostatic needle module (22);
[0008] The electrostatic collection module (21) includes a honeycomb collection plate (211) and a mounting block (212). The electrostatic electrode needle module (22) includes an ionization electrode needle (221) and an insulating shell (222) covering the outside of the ionization electrode needle (221). The honeycomb collection plate (211) and the ionization electrode needle (221) are arranged opposite to each other. When working, the ionization electrode needle (221) ionizes the surrounding air under the action of high voltage, generating a large number of positive and negative ions. Under the guidance of the fan (13), the positive and negative ions are fully mixed with the oil fume particles and make them charged, forming charged oil fume particles (311). The electrostatic collection module (21) is provided with a high voltage electric field. The charged oil fume particles (311) migrate towards the honeycomb collection plate (211) under the drive of the electric field force and finally adsorb onto the surface of the honeycomb collection plate (211), realizing the separation and collection of oil fumes.
[0009] Furthermore, the air fryer body is made entirely of metal, which is food-contact grade stainless steel or aluminum alloy.
[0010] Furthermore, the shell (11) has a cylindrical structure, and its inner wall and the inner liner are filled with high-temperature resistant insulation material, such as ceramic fiber or aluminum silicate cotton. This design can significantly reduce heat loss during cooking and improve energy efficiency.
[0011] Furthermore, the cooking cavity is provided with buckles on both sides, and the frying basket (12) is closed and connected to the shell (11) through the buckles.
[0012] Furthermore, the top of the air fryer body is provided with an installation groove, the bottom of which is connected to the inner cavity of the air fryer, and the electrostatic adsorption device is disposed in the installation groove.
[0013] The technical concept of this invention is to use electrostatic adsorption technology to adsorb the oil fume particles generated during the use of the air fryer onto a honeycomb collection plate, which can concentrate and collect the oil fume and help to remove it.
[0014] The working principle of this invention is as follows:
[0015] (1) Place the food to be cooked into the air fryer basket (12), close the latch, and then turn on the air fryer switch.
[0016] (2) After the air fryer starts operating, the resistance wire (14) is energized and heats up. The fan (13) pushes air through the resistance wire (14) to form a high-temperature circulating airflow, which heats the food. During this process, the food is heated and produces oil fumes. At the same time, the ionization electrode (221) in the electrostatic electrode module (22) undergoes corona discharge under high voltage, causing the surrounding gas to ionize and generate a large number of positive and negative ions. These positive and negative ions are mixed with the oil fume particles by the fan (13), causing the oil fume particles to become charged and form charged oil fume particles (311). Under the action of the electrostatic field, the charged oil fume particles (311) move directionally toward the honeycomb collection plate (211) of the electrostatic collection module (21) and are finally adsorbed onto the surface of the honeycomb collection plate (211), thereby realizing the electrostatic adsorption and capture of oil fumes.
[0017] (3) After cooking, the electrostatic adsorption device (2) as a whole or the honeycomb collection plate (211) can be disassembled for cleaning and maintenance so that it can be reused.
[0018] Compared with the prior art, the beneficial effects of the present invention are reflected in:
[0019] 1. This invention utilizes electrostatic adsorption technology to adsorb oil fume particles generated during air fryer use onto a honeycomb collection plate, which can concentrate and collect the oil fume, facilitating its removal;
[0020] 2. The electrostatic collection module, through its honeycomb structure design, can efficiently adsorb oil fume particles within the electrostatic collection system, thereby improving adsorption efficiency;
[0021] 3. The electrostatic adsorption device adopts a detachable design. When a lot of grease accumulates on the surface of the honeycomb collection plate, the user can remove it as a whole for cleaning, which greatly simplifies the cleaning and maintenance process.
[0022] 4. The present invention has a compact structure and is easy to install, which can significantly improve the purification efficiency of oil fumes and improve the cooking environment. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the overall structure of the air fryer of the present invention.
[0024] Figure 2 This is a cross-sectional view of the air fryer of the present invention.
[0025] Figure 3 This is a schematic diagram showing the location of the electrostatic adsorption device in the air fryer of the present invention.
[0026] Figure 4 This is a schematic diagram of the electrostatic adsorption device of the air fryer of the present invention.
[0027] Figure 5This is a front view of the electrostatic adsorption device of the air fryer of the present invention.
[0028] Figure 6 This is a schematic diagram of the movement of oil fume particles in the electrostatic adsorption device of the air fryer of the present invention. Detailed Implementation
[0029] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of the present invention.
[0030] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.
[0031] The present invention will now be described in detail with reference to the accompanying drawings and exemplary embodiments.
[0032] refer to Figures 1 to 6 An air fryer for electrostatic separation of cooking fumes according to the present invention includes an air fryer body, wherein an electrostatic adsorption device is provided in the inner cavity of the air fryer body, and the electrostatic adsorption device is detachably disposed in the upper part of the inner cavity of the air fryer; wherein:
[0033] The air fryer body includes a shell 11, a frying basket 12, a fan 13, and a heating wire 14. The shell 11 has an inner cavity, and the frying basket 12 is removably disposed within the inner cavity of the shell 11. The portion of the frying basket 12 exposed outside the shell 11 is provided with a handle, which integrates a button. The user can remove or place the frying basket 12 from the shell 11 by pressing the button. The fan 13 and the heating wire 14 are both installed in the inner cavity of the shell 11 and are located above the frying basket 12. The heating wire 14 is arranged in a "U" shape around the bottom of the fan 13. When powered on, the heating wire 14 generates radiant heat, and the fan 13 blows hot air downwards to the area of the frying basket 12, forming a forced circulation of hot airflow within the inner cavity of the shell 11, thereby achieving uniform heating of the food.
[0034] The electrostatic adsorption device includes an electrostatic collection module 21 and an electrostatic electrode needle module 22;
[0035] The electrostatic collection module 21 includes a honeycomb collection plate 211 and a mounting block 212. The electrostatic electrode needle module 22 includes an ionization electrode needle 221 and an insulating shell 222 covering the outside of the ionization electrode needle 221. The honeycomb collection plate 211 and the ionization electrode needle 221 are arranged opposite to each other. During operation, the ionization electrode needle 221 ionizes the surrounding air under high voltage, generating a large number of positive and negative ions. Under the guidance of the fan 13, the positive and negative ions are fully mixed with the oil fume particles and charged to form charged oil fume particles 311. The electrostatic collection module 21 is equipped with a high-voltage electric field. The charged oil fume particles 311 migrate towards the honeycomb collection plate 211 under the drive of the electric field force and are finally adsorbed on the surface of the honeycomb collection plate 211, realizing the separation and collection of oil fumes.
[0036] In this embodiment, the air fryer body is made entirely of metal, which is food-contact grade stainless steel or aluminum alloy.
[0037] In this embodiment, the shell 11 has a cylindrical structure, and its inner wall and the inner liner are filled with a high-temperature resistant insulation material, such as ceramic fiber or aluminum silicate cotton. This design can significantly reduce heat loss during cooking and improve energy efficiency.
[0038] In this embodiment, buckles are provided on both sides of the cooking cavity, and the frying basket 12 is closed and connected to the shell 11 through the buckles.
[0039] In this embodiment, the top of the air fryer body is provided with a mounting groove, the bottom of the mounting groove is connected to the inner cavity of the air fryer, and the electrostatic adsorption device is disposed in the mounting groove.
[0040] The working principle of this invention is as follows:
[0041] (1) Place the food to be cooked into the air fryer basket 12, close the latch, and then turn on the air fryer switch.
[0042] (2) After the air fryer starts operating, the resistance wire 14 is energized and heats up. The fan 13 pushes air through the resistance wire 14 to form a high-temperature circulating airflow, which heats the food. During this process, the food generates oil fumes due to heating. At the same time, the ionization electrode 221 in the electrostatic electrode module 22 undergoes corona discharge under high voltage, ionizing the surrounding gas and generating a large number of positive and negative ions. These positive and negative ions mix with the oil fume particles under the drive of the fan 13, charging the oil fume particles and forming charged oil fume particles 311. Under the action of the electrostatic field, the charged oil fume particles 311 move directionally towards the honeycomb collection plate 211 of the electrostatic collection module 21 and are finally adsorbed onto the surface of the honeycomb collection plate 211, thereby realizing the electrostatic adsorption and capture of oil fumes.
[0043] (3) After cooking, the electrostatic adsorption device 2 as a whole or the honeycomb collection plate 211 therein can be disassembled for cleaning and maintenance so that it can be reused.
[0044] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.
Claims
1. An air fryer that uses electrostatic separation of cooking fumes, comprising an air fryer body, characterized in that, The inner cavity of the air fryer main body is provided with an electrostatic adsorption device, and the electrostatic adsorption device is detachably arranged at the upper part of the inner cavity of the air fryer; wherein: The air fryer body includes a housing (11), a frying basket (12), a fan (13) and a heating wire (14). The housing (11) has an inner cavity. The frying basket (12) is slidably arranged in the inner cavity of the housing (11). A handle is arranged on the part of the frying basket (12) exposed outside the housing (11), and a button is integrated on the handle. When the user presses the button, the frying basket (12) can be taken out of or put into the housing (11); The fan (13) and the heating wire (14) are both installed in the inner cavity of the housing (11) and are located above the frying basket (12). The heating wire (14) is arranged in a "return" shape around the fan (13). After being powered on, the heating wire (14) generates radiant heat, and the fan (13) operates to blow hot air downward to the frying basket (12) area, and a forced circulating hot air flow is formed in the inner cavity of the housing (11), so as to uniformly heat the food; The electrostatic adsorption device includes an electrostatic collection module (21) and an electrostatic needle module (22); The electrostatic collection module (21) includes a honeycomb-shaped collection plate (211) and a mounting block (212). The electrostatic needle module (22) includes an ionization needle (221) and an insulating shell (222) covering the outside of the ionization needle (221). The honeycomb-shaped collection plate (211) is arranged opposite to the ionization needle (221); During operation, the ionization needle (221) ionizes the air around it under the action of high voltage, generating a large number of positive and negative ions. Under the guidance of the fan (13), the positive and negative ions are fully mixed with the oil fume particles and make them charged, forming charged oil fume particles (311); The electrostatic collection module (21) is provided with a high-voltage electric field. The charged oil fume particles (311) migrate towards the honeycomb-shaped collection plate (211) under the drive of the electric field force and are finally adsorbed on the surface of the honeycomb-shaped collection plate (211), realizing the separation and collection of oil fume.
2. An air fryer using electrostatic separation of oil fumes as described in claim 1, characterized in that, The air fryer main body is made of metal material as a whole, and the metal material is food-contact-grade stainless steel or aluminum alloy.
3. An air fryer using electrostatic separation of oil fumes as described in claim 1, characterized in that, The housing (11) is in a cylindrical structure, and a high-temperature resistant heat insulation material is filled between the inner wall of the housing (11) and the inner liner to reduce heat loss during cooking.
4. An air fryer for electrostatic separation of oil fumes as described in claim 1, characterized in that, Clips are respectively arranged on both sides of the cooking cavity, and the frying basket (12) is closed and connected with the housing (11) through the clips.
5. An air fryer using electrostatic separation of oil fumes as described in claim 1, characterized in that, An installation groove is opened at the top of the air fryer main body, the bottom of the installation groove is communicated with the inner cavity of the air fryer, and the electrostatic adsorption device is arranged in the installation groove.