Air purification device and air purification workbench

Abstract

Provided in the present invention are an air purification device and an air purification workbench. The air purification device comprises a main body and an extension assembly. The main body internally comprises a power supply module, a control unit, an ion generator and an airflow generation module. The control unit is electrically connected to the power module. The ion generator is electrically connected to the power module and controlled by the control unit to generate ions. The airflow generation module is electrically connected to the power module and controlled by the control unit to generate an airflow. The extension assembly is connected to the main body and communicates with the ion generator and the airflow generation module. The extension assembly has an opening, the opening being configured to release an airflow containing ions. The air purification device of the present invention can effectively remove dust and suspended particles.

Description

Air purification device and air purification workbench TECHNICAL FIELD

[0001] The present application relates to air purification technology, in particular to an air purification device and its intelligentization and workbench application. BACKGROUND

[0002] During dental diagnosis and treatment, such as tooth grinding, polishing or artificial correction material processing, dust containing PM2.5, PM10 fine suspended particles and biological source suspended particles (PM) including viruses, bacteria and pollen may be generated, which may cause harm to the health of the operator after long-term exposure. During manicure operation, similar suspended particles and dust, even including mold, may be generated during nail polishing and artificial nail processing. During diagnosis and treatment of otolaryngology and dentistry, medical staff may directly or indirectly contact bacteria due to close contact with the patient's oral cavity, causing infection and transmission. Dental grinding personnel, manicure operators, otolaryngology doctors and dentists all belong to close-range suspended particle operating personnel. However, the existing air purification equipment cannot immediately purify the instantaneously released dust and suspended particles, and cannot effectively prevent close-range suspended particle operating personnel from inhaling dust and suspended particles.

[0003] The existing air purification equipment cannot prevent imperfect dust and suspended particles from spreading to the entire environment to cause more widespread pollution, and cannot immediately treat instantaneously released dust and suspended particles, resulting in close-range suspended particle operating personnel inhaling dust and suspended particles first, and the remaining airflow circulating to the air purification equipment for air purification. Therefore, dental clinics, otolaryngology clinics, manicure studios and other similar fields need an air purification technology that can immediately purify the air, isolate patients and medical staff, and reduce the concentration of suspended particles to protect the health of operators and customers. SUMMARY

[0004] The purpose of the present application is to provide an air purification device that can effectively remove dust and suspended particles to ensure fresh breathing air.

[0005] In order to achieve the above purpose, the present application provides an air purification device comprising a body and an extension assembly. The body comprises a power module, a control unit, an ion generator and an airflow generation module. The ion generator can generate "negative ions" or "ion groups". Negative ions can include one or a combination of O2 - , O - , O2 - (superoxide anion), O - (monatomic oxygen anion), OH - (hydroxyl ion), NO3 - or Cl - . Ion groups can include positive and negative oxygen ions (O2- O2 + hydroxyl radical (·OH), hydrogen peroxide (H2O2) trace gaseous molecules or water cluster ions (H + (H2O)n, OH - (H2O)n). The control unit is electrically connected to the power module. The ion generator is electrically connected to the power module and controlled by the control unit to generate ions. The airflow generator is electrically connected to the power module and controlled by the control unit to generate airflow. An extension assembly is connected to the body and in communication with the ion generator and the airflow generator. The extension assembly has an opening configured to release the airflow containing ions.

[0006] In an embodiment of the present application, the air purification device further comprises an image recognition module electrically connected to the control unit to detect the presence of a user approaching the device and to activate the ion generator and the airflow generator according to the detection result.

[0007] In an embodiment of the present application, the air purification device further comprises an image recognition module electrically connected to the control unit to obtain an image containing a pollution source; wherein the control unit controls the operation mode of the ion generator and the airflow generator according to the image.

[0008] In an embodiment of the present application, the control unit comprises a database, a comparison module and a processing unit. The database is used to store a trained image recognition model. The comparison module is configured to compare the image with the model data in the database to identify the pollution source and its location. The processing unit is used to output a control signal according to the comparison result of the comparison module to control the operation of the ion generator and the airflow generator.

[0009] In an embodiment of the present application, the air purification device further comprises an adjustable nozzle assembly. The adjustable nozzle assembly is electrically connected to the control unit, and includes a nozzle and an adjusting mechanism. The nozzle is arranged at the opening of the extension assembly, and the adjusting mechanism is connected to the nozzle and configured to drive the nozzle to adjust the angle of the nozzle. The control unit further drives the adjustable nozzle assembly to automatically adjust the angle of the nozzle according to the control signal, so as to guide the airflow to the pollution source. In a specific example, the control unit can accurately regulate the output parameters of the airflow generation module, so that the outlet air speed is maintained within the range of 0.2 m / s to 3.5 m / s, the corresponding outlet gas volume flow is 0.8 LPM to 25 LPM, and the outlet air pressure is controlled within the range of 0.4 Pa to 7.5 Pa. In addition, the outlet angle of the airflow can be set to an inclination angle of 10 degrees to 20 degrees relative to the position of the user, so as to ensure that the ion-containing airflow can effectively guide the dust and suspended particles to the emission position, and achieve the effect of locking the dust and suspended particles without blowing them away.

[0010] In an embodiment of the present application, the image recognition model stored in the database is obtained by labeling and learning training a plurality of context images containing dust or suspended particles, and is used to identify the pollution degree or position of the pollution source.

[0011] In an embodiment of the present application, the extension assembly comprises an extension part and a nozzle part connected to the extension part. The nozzle part has a V-shaped cross section, and the opposite surfaces of the nozzle part have ion release openings and airflow release openings.

[0012] In an embodiment of the present application, the air purification device further comprises a mounting assembly. The mounting assembly is configured to mount the body on a carrying device or as a wearing element. The carrying device is a dental treatment chair, an ear-nose-throat treatment chair, a manicure workbench, a dental treatment table, an administrative window workbench, an office table, or a general desk.

[0013] The present application further provides an air purification workbench. The air purification workbench comprises a workbench and the air purification device. The air purification device is mounted on the workbench and electrically connected to the power supply and the control system of the workbench. The control system of the workbench integrates the operation of the ion generator and the airflow generation module. The workbench is a dental treatment table or a manicure workbench.

[0014] In an embodiment of the present application, the air purification device is a rechargeable device, which can be carried on the body and used in different environments to isolate and clean suspended particles.

[0015] In an embodiment of the present application, the air purification device described above comprises a starting element; electrically connected to the power module and controlled by the control unit to start or stop. The starting element includes but is not limited to infrared light distance sensor, optical sensor, mechanical / pressure sensor, capacitive / electromagnetic sensor, acoustic sensor, thermal sensor, chemical / biological sensor and wireless signal sensor.

[0016] As described above, the air purification device of the present application can provide clean and fresh air in the breathing area of the user or the working environment through ion generation and airflow guidance, achieving the basic effect of instant purification and comfortable breathing. Further, the present application can be combined with the image recognition module and the control unit for dynamic adjustment, so that the purified airflow is accurately guided to the source of dust or suspended particles, thereby improving the purification efficiency and reducing energy consumption. In addition, the air purification device of the present application can be integrated into a diagnosis table, a manicure workbench or other work platforms, becoming a part of the work process, having multiple application values of direct use and intelligent control, and being suitable for various environments and needs. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 is a structural schematic diagram of an air purification device according to a first embodiment of the present application.

[0018] Fig. 2 is a structural schematic diagram of an air purification device according to a second embodiment of the present application.

[0019] Fig. 3 is a structural schematic diagram of an air purification device according to a third embodiment of the present application.

[0020] Fig. 4 is a structural schematic diagram of an air purification device according to a fourth embodiment of the present application.

[0021] Fig. 5 is a structural schematic diagram of an air purification device according to a fifth embodiment of the present application.

[0022] Fig. 6 is a structural schematic diagram of an air purification device according to a sixth embodiment of the present application.

[0023] Fig. 7 is a structural schematic diagram of an air purification device according to a seventh embodiment of the present application.

[0024] Fig. 8a and Fig. 8b are examples of photos of pollution sources used in the present application.

[0025] Fig. 9 is a structural schematic diagram of an air purification device according to an embodiment of the present application.

[0026] Fig. 10 is a structural schematic diagram of an adjustable nozzle assembly according to an embodiment of the present application.

[0027] Fig. 11 is a structural schematic diagram of an air purification workbench according to an embodiment of the present application. DETAILED DESCRIPTION

[0028] In order to make the above and other objects, features and advantages of the present application more comprehensible, specific embodiments accompanied by drawings are described in detail as follows. Moreover, the directional terms mentioned in the present application, such as upper, lower, top, bottom, front, back, left, right, inner, outer, side, periphery, center, horizontal, transverse, vertical, longitudinal, axial, radial, uppermost or lowermost, are only referred to the direction of the accompanying drawings. Therefore, the directional terms are used to describe and understand the present application, but not to limit the present application.

[0029] Referring to FIG. 1, an air purifying device 1 is disclosed, which comprises a main body 11 and an extension assembly 13 connected to the main body 11. The main body 11 is provided with a power module 111, a control unit 112, an ion generator 113 and an airflow generating module 114. The control unit 112 is electrically connected to the power module 111, and further controls the operation of the ion generator 113 and the airflow generating module 114 to generate an airflow containing ions. The airflow containing ions can be transported through the extension assembly 13 and released from the opening 13a to achieve the effect of air purification.

[0030] In the present embodiment, the extension assembly 13 can have a tubular structure and can be integrally formed with the shell of the main body 11. Therefore, the tube 113a of the ion generator 113 and the tube 114a of the airflow generating module 114 can respectively extend from the main body 11 into the extension assembly 13 and reach the opening 13a thereof to guide the airflow containing ions out. In a specific embodiment, the tube 113a of the ion generator 113 can also communicate with the tube 114a of the airflow generating module 114, so that the ions are mixed with the airflow before being released through the opening 13a. In summary, the extension assembly 13 is connected to the main body 11 and communicates with the ion generator 113 and the airflow generating module 114, and the opening 13a of the extension assembly 13 is used to release the airflow containing ions, wherein the ion generator 113 and the airflow generating module 114 can operate cooperatively to direct the airflow containing ions to output through the extension assembly 13 to improve the air purification efficiency.

[0031] In addition, the air purifying device 1 of the present embodiment further comprises a mounting assembly 15 for fixing the main body 11 to a supporting device T1. For example, the mounting assembly 15 can be arranged between the main body 11 and the extension assembly 13 and jointly configured as a clamping structure to clamp and fix the air purifying device 1 to the edge of a table top. In a specific embodiment, the extension assembly 13 can have a flexible tubular structure and can be bent into an L shape to extend from the side edge of the table top to above the table top to facilitate guiding the airflow to a specified area. Furthermore, the mounting assembly 15 can be covered with a dust collection pad 151 to receive and adsorb dust particles attached to the ions.

[0032] Referring to FIG. 2, a structural diagram of an air purification device according to a second embodiment of the present application is shown. The second embodiment discloses a variation of the air purification device, which is modified and extended from the structure of the first embodiment, and can achieve the same air purification effect. It should be noted that, for the purpose of comparison, the same elements in the following embodiments as those in the first embodiment will be marked with the same reference numerals, and their structures and functions can be referred to the foregoing description. Only the structural differences and newly added elements will be described in the following.

[0033] As shown in FIG. 2, the air purification device of the second embodiment is further integrated into an air purification workbench 2. The air purification workbench 2 includes a body 21 and an extension assembly 23 connected to the body 21. The body 21 is provided with a power module 111, a control unit 112, an ion generator 113, and an air flow generation module 114. The control unit 112 is electrically connected to the power module 111, and controls the operation of the ion generator 113 and the air flow generation module 114 to generate ion-containing air flow. The ion-containing air flow is guided through the extension assembly 23 and released from an opening 23a to achieve the air purification effect.

[0034] In the second embodiment, the body 21 can be directly embedded in the interior of a bearing device T2. Specifically, the bearing device T2 is a workbench, and a mounting space can be formed on the tabletop of the workbench to accommodate the body 21, so that the extension assembly 23 can pass through the body 21 to the outside of the workbench. The opening of the mounting space can constitute an air flow back-suction end 21a, and a dust collection filter pad 152 can be further provided. When the air flow generation module 114 is operated, the external air flow is sucked into the body 21 through the air flow back-suction end 21a, first passes through the dust collection filter pad 152 to filter suspended particles, and then releases the clean air flow from the extension assembly 23 and the opening 23a to the work area. Through the cooperation of the air flow back-suction end 21a and the air flow generation module 114, a local circulating closed air flow loop can be established to continuously suck suspended particles, thereby improving the air purification efficiency.

[0035] Referring to FIG. 3, the air purifying device of the present application can also be implemented as a portable structure, which can be carried by the user and used as needed to achieve the isolation and cleaning effect of the suspended particles. The air purifying device 3 of the present embodiment includes a body 31 and an extension assembly 33 connected to the body 31. The body 31 is provided with a power module 111, a control unit 112, an ion generator 113, and an air flow generating module 114. The control unit 112 is electrically connected to the power module 111 and further controls the operation of the ion generator 113 and the air flow generating module 114 to generate ion-containing air flow. The ion-containing air flow is guided through the extension assembly 33 and released from the opening thereof to achieve the air purifying effect. The power module 111 is a rechargeable battery.

[0036] In the present embodiment, the extension assembly 33 includes an extension portion 331 and a nozzle portion 332 in communication with each other, wherein the cross section of the nozzle portion 332 is V-shaped. The extension portion 331 is provided with ion transmission channels 331a and gas transmission channels 331b spaced apart from each other, one end of the ion transmission channels 331a is connected to the ion generator 113, the other end is communicated to one surface of the nozzle portion 332 and forms an ion release port 332a; one end of the gas transmission channels 331b is connected to the air flow generating module 114, the other end extends to the other surface of the nozzle portion 332 and forms an air flow release port 332b. Further, the nozzle portion 332 has an included angle a1 between the two surfaces, ranging from 10 degrees to 170 degrees, so that the ion and air flow can be mixed between the two surfaces of the nozzle portion 332 and then transported to the predetermined area. In addition, the extension assembly 33 is a flexible structure that can be bent or twisted as needed to guide the air flow and ions towards the desired target area.

[0037] In other embodiments, the air purifying device 3 can also be installed at different positions through a mounting assembly. For example, as shown in FIG. 4, the mounting assembly 41 can be configured as a wearing element, such as an ear hook, to fix the extension assembly 33 on the user's ear. The user can be a medical staff, a patient or a manicurist, etc., so as to provide a local air purifying effect during use. In addition, the present embodiment can further be combined with a wearable dust collection apron 42 to assist in adsorbing suspended particles and improving the purification efficiency.

[0038] As shown in the embodiment of FIG. 5, the mounting assembly 51 can be configured as a hanger, which can be hung to fix the body 31 of the air purifying device 3 behind a carrier device T3. The carrier device T3 can be a dental or otolaryngological treatment chair, a manicure work desk, a dental treatment table, an administrative window work desk, an office desk, or a general desk. In use, the extension assembly 33 can be extended from the body 31 to a predetermined position in front of the carrier device T3 to direct the ion-containing airflow to the use area and form an air curtain isolation effect. The directional airflow forms an air barrier to separate the user's mouth and nose area from the external area to block the flow and exchange of air, suspended particles, microorganisms, or odors, thereby achieving the air purification effect. Further, the airflow back-suction end design can also be used to suck the airflow containing suspended particles back and filter the airflow before entering the airflow generation module 114 to be sprayed out of the air outlet in the form of clean airflow, forming a closed airflow loop to precisely and efficiently block the spread of suspended particles. In this mode, the airflow generated by the airflow generation module can be adjusted to an outlet wind speed of 0.2 m / s to 3.5 m / s, an outlet gas volume flow of 0.8 LPM to 5 LPM, and an outlet wind pressure of 0.4 Pa to 7.5 Pa. The outlet air angle is inclined by 10 degrees to 20 degrees towards the user to maintain the stability of the air curtain.

[0039] As shown in the embodiment of FIG. 6, the mounting assembly 61 can be configured as a pivot seat, which is provided with a rotatable sleeve holder 62. The body 31 of the air purifying device 3 is fixed behind a carrier device T4, which can be a dental or otolaryngological treatment chair. The extension assembly 33 can be inserted into the sleeve holder 62, and the sleeve holder 62 has an opening 62a. In use, the sleeve holder 62 can be flipped to correspond to the mouth or nose position of the user when seated on the carrier device T4. Therefore, the ion-containing airflow transported by the extension assembly 33 can be guided to the user's mouth and nose position through the sleeve holder 62, thereby ensuring that clean and fresh air is continuously maintained in the user's breathing range.

[0040] In some embodiments, the air purifying device can also be used with an image recognition module. As shown in FIG. 7, the air purifying device 7 is a portable structure, which includes a body 71, an extension assembly 73 connected to the body 71, and a nozzle 75 arranged at the open end of the extension assembly 73. The body 71 is provided with a power supply module 111, a control unit 112, an ion generator 113, and an airflow generation module 114. The control unit 112 is electrically connected to the power supply module 111 and further controls the operation of the ion generator 113 and the airflow generation module 114 to generate ions and airflow, respectively.

[0041] The ions generated by the ion generator 113 can be transmitted to the extension assembly 73 via the pipe 113a and introduced into the nozzle 75; the airflow generated by the airflow generator module 114 can be transmitted to the extension assembly 73 via the pipe 114a and introduced into the nozzle 75. The two are mixed inside the nozzle 75 to form an airflow containing ions and released from the opening 75a of the nozzle 75 to achieve the air purification effect. In the embodiment, the body 71 is provided with an airflow suction end 71a, and a dust collection screen is arranged at the opening of the airflow suction end 71a. When the airflow generator module 114 is in operation, external airflow can be sucked in through the airflow suction end 71a, filtered to remove suspended particles, and then output as clean airflow. Therefore, the filtering and re-output of the airflow suction end can form a local circulation airflow loop together with the airflow released from the nozzle 75, thereby further improving the air purification efficiency.

[0042] In the embodiment of FIG. 7, the nozzle 75 can be provided with an image recognition module 77 for detecting the presence of a user approaching the device. The control unit 112 can start or stop the operation of the ion generator 113 and the airflow generator module 114 according to the detection result of the image recognition module 77, so that the air purification device 7 operates only when needed to save energy and improve use convenience. In a specific example, the image recognition module 77 can be a single camera, a video camera, or a combination of multiple cameras. Through the image recognition module 77, image information can be obtained, which can include suspended particle concentration judgment and position judgment for further analysis and judgment by the control unit 112. In other embodiments, an activation element 79 can be installed to sense the approach of a user and start or stop the device. The activation element 79 can be installed on the nozzle 75 and electrically connected to the power module 111 and controlled by the control unit 112. The activation element 79 can include various types of sensors, such as optical sensors, such as visible light sensors (photoresistors, photodiodes), laser ranging (ToF, Time of Flight), or image sensors for human / object recognition through image and AI algorithms; mechanical or pressure sensors, such as micro switches, pressure sensors (for detecting weight or seat cushion pressure), or vibration sensors; capacitive / electromagnetic sensors, such as capacitive touch sensors, inductive sensors, or magnetic reed switches; acoustic sensors, such as microphones (voice control / speech recognition), or ultrasonic sensors; thermal sensors, such as pyroelectric infrared (PIR) sensors or temperature sensors; chemical / biological sensors, such as gas sensors (CO2, VOC, PM2.5), humidity sensors, or biological signal sensors (heart rate, skin resistance, brain waves); wireless signal sensing, such as Bluetooth, NFC, RFID proximity detection, or mmWave Radar for precise detection of human presence and motion. Through the above-mentioned sensors, the activation element 79 can be applied in different situations to achieve the functions of automatic on / off and user detection.

[0043] In an embodiment, the image recognition module 77 is configured to obtain images containing the source of contamination, such as the dust eruption during the process of grinding fingernails as shown in FIG. 8a, or the location where dust accumulates when grinding dentures as shown in FIG. 8b. Further, as shown in FIG. 9, the control unit 112 includes a database 112a, a comparison module 112b, and a processing unit 112c. The database 112a is used to store a trained image recognition model, which is obtained by labeling and learning training based on a plurality of context images containing dust or suspended particles, for identifying the contamination level or location of the source of contamination. In a specific example, the training process can include: collecting a plurality of images containing the source of dust or suspended particle eruption, and images without dust; performing data labeling; selecting a suitable model architecture for training and verification; and storing the trained image recognition model in the database. The comparison module 112b is configured to compare the images obtained by the image recognition module 77 with the model data in the database 112a to identify the contamination level and location of the source of contamination; and the processing unit 112c is configured to output a control signal according to the comparison result to adjust the operation mode of the ion generator 113 and the airflow generation module 114, such as air volume, air speed, opening or closing timing, and supply time, to achieve the purpose of intelligently adjusting the amount of ion output and the size of airflow, so that the device of the present application can perform real-time air purification control according to the actual contamination situation.

[0044] In an embodiment, referring to FIGS. 7, 9, and 10, in order to improve the purification effect on the source of contamination, the nozzle 75 of the air purification device 7 can be replaced by an adjustable nozzle assembly 115, which is arranged at the opening end of the extension assembly 73 and is driven by the control unit 112 to automatically adjust the jet angle to accurately guide the ion-containing airflow to the source of contamination. The adjustable nozzle assembly 115 is electrically connected to the control unit 112, and includes a nozzle 115a and an adjustment mechanism 115b. The nozzle 115a is arranged at the opening of the extension assembly 73, and the adjustment mechanism 115b is connected to the nozzle 115a and is configured to drive the nozzle 115a to rotate, thereby changing the guiding angle of the airflow. Specifically, the nozzle 115a can be configured as a rotatable spherical seat. The tube 113a of the ion generator 113 and the tube 114a of the airflow generation module 114 respectively guide ions and airflow into the interior of the spherical seat, and the adjustment mechanism 115b drives the spherical seat to rotate or yaw, so that the nozzle 115a turns and changes the direction of the airflow to guide the airflow to the source of contamination.

[0045] In this way, the spray angle of the nozzle 115a can be automatically adjusted according to the control instruction of the control unit 112 to accurately guide the airflow to the pollution source position, and the external airflow is sucked into the airflow return end 71a and output after filtration, forming a local circulating closed airflow loop with the airflow released by the nozzle 115a, and accurately and efficiently blocking the diffusion of suspended particles. In a specific example, the adjusting mechanism 115b can be a micro servo motor, an electromagnetic actuator or a piezoelectric actuator, so as to realize multi-angle and instant spray direction adjustment.

[0046] In some embodiments, the air purification device of the present application can also be installed on a workbench, such as a dental treatment table or a manicure workbench, and can be electrically connected with the power supply and control system of the workbench. Therefore, the workbench control system can integrate the operation of the ion generator and the airflow generation module, so that the air purification function becomes part of the diagnosis and treatment or operation process. For example, as shown in FIG. 11, the air purification workbench 8 includes a workbench 81 and an air purification device 7, which can be installed on one side of the workbench 81; in other examples, it can also be arranged above, below or embedded in the workbench structure to meet different application requirements.

[0047] It should be understood that the various embodiments described in the present application are not independent of each other, but can be combined or replaced with each other. For example, the structure of the portable air purification device can be used interchangeably with the configuration installed on the treatment chair or workbench, and the image recognition module and adjustable nozzle assembly can also be selected or omitted according to actual needs.

[0048] As described above, the air purification device provided by the present application can provide clean and fresh air in the breathing area of the user or the working environment through ion generation and airflow guidance, achieving the basic effect of instant purification and comfortable breathing. Further, the present application can be dynamically adjusted in cooperation with the image recognition module and the control unit, so that the purification airflow can accurately guide to the source of dust or suspended particles, ensure that the airflow containing ions can effectively lock the dust and suspended particles at the emission position, and avoid blowing them away to cause secondary diffusion, so as to improve the purification efficiency and reduce energy consumption. In addition, the air purification device of the present application can be integrated into a treatment table, a manicure workbench or other operation platform to become part of the work process, and has multiple application values of direct use and intelligent control, and is suitable for various environments and needs.

[0049] Although the present application has been disclosed with a preferred embodiment, it is not intended to limit the present application, and any person skilled in the art can make various modifications and modifications without departing from the spirit and scope of the present application, therefore the protection scope of the present application shall be subject to the appended claims.

Claims

1. An air purification device, characterized by, The device comprises: a body, the interior of which comprises: a power module; a control unit electrically connected to the power module; an ion generator electrically connected to the power module and controlled by the control unit to generate ions; and an air flow generating module electrically connected to the power module and controlled by the control unit to generate air flow, the air flow generating module, when in operation, can suck in external air flow through the air flow suction end provided on the body, output clean air flow after filtering treatment, and further form a closed air flow loop to continuously suck in suspended particles; and an extension assembly connected to the body and in communication with the ion generator and the air flow generating module, the extension assembly has an opening for releasing air flow containing ions; wherein the ion generator and the air flow generating module work cooperatively to direct the air flow containing ions to be output through the extension assembly.

2. The air cleaning device of claim 1, wherein, The air flow generating module is configured to generate air flow with an outlet wind speed controlled at 0.2 m / s to 3.5 m / s; the outlet air volume flow is controlled at 0.8 LPM to 25 LPM; the outlet air pressure is controlled at 0.4 Pa to 7.5 Pa, and the outlet air angle is inclined at 10 degrees to 20 degrees relative to the position of the user.

3. The air cleaning device of claim 1, wherein, Further comprising: a start-up element electrically connected to the power module and the control unit, the start-up element is used to detect the presence of the user approaching the device, and start the ion generator and the air flow generating module according to the detection result.

4. The air cleaning device of claim 3, wherein, The start-up element is selected from at least one of infrared light distance sensor, optical sensor, mechanical or pressure sensor, capacitive or electromagnetic sensor, acoustic sensor, thermal sensor, chemical or biological sensor, and wireless signal sensor.

5. The air cleaning device of claim 1, wherein, Further comprising: an image recognition module electrically connected to the control unit to obtain an image containing a pollution source; wherein the control unit controls the operation mode of the ion generator and the air flow generating module according to the image, intelligently adjusts the amount of ion output and the size of air flow; and an adjustable nozzle assembly is provided at the opening of the extension assembly and driven by the control unit to automatically adjust the jet angle, guiding the air flow containing ions to the pollution source.

6. The air cleaning device of claim 1, wherein, Further comprising: an image recognition module electrically connected to the control unit to obtain an image containing a pollution source, wherein the control unit comprises: a database for storing trained image recognition models; a comparison module configured to compare the image with the model data in the database to identify the pollution source and its position; and a processing unit for outputting control signals according to the comparison result of the comparison module to control the operation of the ion generator and the air flow generating module, intelligently adjusting the amount of ion output and the size of air flow.

7. The air cleaning device of claim 6, wherein, The image recognition model stored in the database is obtained by labeling and learning training based on multiple situation images containing dust or suspended particles, for identifying the pollution degree or position of the pollution source.

8. The air cleaning device of claim 1, wherein, Further comprising: An adjustable nozzle assembly electrically connected to the control unit, comprising a nozzle disposed at the opening of the extension assembly and an adjustment mechanism connected to the nozzle and configured to drive the nozzle to rotate to change the angle of the air flow; Wherein the control unit further drives the adjustable nozzle assembly to automatically adjust the nozzle angle according to a control signal to direct the air flow to the pollution source.

9. The air cleaning device of claim 1, wherein, Further comprising a mounting assembly configured to mount the body on a carrying device or as a wearing element, wherein the carrying device is a dental chair, an ear-nose-throat chair, a manicure workbench, a dental operating table, an administrative window workbench, an office table or a general desk.

10. An air purification workbench characterized by, Comprising: a workbench; and The air purification device of any one of claims 1 to 9 is mounted on the workbench and electrically connected to the power supply and control system of the workbench to integrate the operation of the ion generator and the air flow generation module by the control system. ​

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