Air purifying device

Abstract

The utility model relates to air purification technical field discloses air purification device, including shell, air door mechanism, drive mechanism, air quality sensor and controller, the shell is equipped with first air outlet and second air outlet, air door mechanism is movably arranged at second air outlet, is used for adjusting the ventilation area of second air outlet, drive mechanism is transmission connection with air door mechanism, air quality sensor sets up on the shell, controller and drive mechanism and air quality sensor all communication connection, the utility model realizes intelligent control to air door mechanism, dynamic regulation second air outlet ventilation area, realizes the purification according to demand, closes second air outlet and reduces energy consumption and noise when air quality is good, opens first air outlet and second air outlet and accelerates air circulation and purification efficiency when pollution aggravates, the dynamic adjustment of second air outlet ventilation area can optimize the air inlet wind speed, enhances the adsorption capacity to the pollutant, enhances the purification performance while improving the intelligent and energy saving.

Description

Technical Field

[0001] This utility model relates to the field of air purification technology, and specifically to an air purification device. Background Technology

[0002] With the improvement of living standards and the enhancement of health awareness, air purifiers have become common equipment in modern homes and offices, used to remove pollutants such as particulate matter, allergens, and odors from the air and improve indoor air quality. Traditional air purifiers usually use fixed air outlets with a single airflow mode. When the air quality is good, the equipment still operates at a fixed power, resulting in energy waste. When the pollutant concentration increases, it limits the coverage and diffusion efficiency of the purified airflow, affecting the overall purification effect. Utility Model Content

[0003] In view of this, the present invention provides an air purification device to solve the problem that the single air outlet mode of the air purification device affects the overall purification effect.

[0004] This utility model provides an air purification device, comprising:

[0005] The outer casing is equipped with a first air outlet and a second air outlet;

[0006] A damper mechanism is movably disposed at the second air outlet to adjust the ventilation area of ​​the second air outlet;

[0007] The drive mechanism is connected to the damper mechanism in a transmission manner;

[0008] An air quality sensor is mounted on the housing.

[0009] The controller is communicatively connected to both the drive mechanism and the air quality sensor.

[0010] Beneficial Effects: By communicating with the controller, drive mechanism, and air quality sensor, intelligent control of the damper mechanism is achieved. The ventilation area of ​​the second air outlet can be dynamically adjusted based on pollutant concentration data detected by the air quality sensor. This not only enables on-demand purification—closing the second air outlet to reduce energy consumption and noise when air quality is good, but also simultaneously opening both the first and second air outlets to accelerate air circulation and purification efficiency when pollution intensifies—but also allows for dynamic adjustment of the second air outlet's ventilation area. This dynamic adjustment indirectly optimizes the inlet air velocity using fluid dynamics principles, and the appropriate change in inlet air velocity directly enhances the adsorption capacity for pollutants such as pet hair, further ensuring air purification effectiveness. This improves both intelligence and energy efficiency while strengthening overall purification performance. It also solves the problem of air purifiers having a single air outlet mode, which affects overall purification efficiency.

[0011] In one optional embodiment, the first air outlet is disposed on the top wall of the housing; multiple second air outlets are provided, and the multiple second air outlets are arranged circumferentially around the side wall of the housing, with each second air outlet corresponding to a damper mechanism.

[0012] Beneficial effects: By placing the first air outlet on the ceiling, it assists in the upward exhaust of air, promoting the vertical flow of air throughout the room. Multiple second air outlets circumferentially surround the side walls and correspond one-to-one with damper mechanisms, achieving circumferential, three-dimensional airflow, expanding the coverage of clean airflow, and rapidly diluting and replacing indoor pollutants without dead angles. Each second air outlet is equipped with an independent damper mechanism, enabling independent control of each outlet and facilitating maintenance.

[0013] In one optional embodiment, the housing is provided with an air inlet, and the air purification device further includes:

[0014] An air duct assembly is disposed inside the housing, and the inlet of the air duct assembly is connected to the air inlet. The air duct assembly has a first outlet and a second outlet, the first outlet being connected to the first air outlet and the second outlet being connected to the second air outlet.

[0015] A purification filter is installed on the airflow path between the air inlet and the inlet of the air duct assembly.

[0016] Beneficial effects: By installing a purification filter along the airflow path between the air inlet and the inlet of the duct assembly, the air entering the equipment is purified. The purified air is then distributed to the first outlet and the second outlet via the duct assembly. Since the first outlet is connected to the first air outlet and the second outlet is connected to the second air outlet, clean airflow can be output from the first air outlet and the second air outlet respectively, meeting different ventilation or purification needs.

[0017] In one alternative implementation, the duct assembly includes:

[0018] A duct housing is disposed inside the outer shell, and an installation space is formed between the outer side wall of the duct housing and the inner side wall of the outer shell, and the damper mechanism is rotatably disposed within the installation space.

[0019] Beneficial effects: By creating an independent installation space through the gap between the duct housing and the inner wall of the outer shell, the damper mechanism can be rotatably installed in this space. This not only makes effective use of the internal space and makes the overall layout more compact and reasonable, but also effectively avoids interference between the damper mechanism and other components during the movement of the damper mechanism by means of the independent installation space, ensuring the stability of the damper rotation process, thereby ensuring the reliability and stability of the ventilation area adjustment of the second air outlet.

[0020] In one optional implementation, the drive mechanism includes:

[0021] The first driving component is fixed to the outer casing;

[0022] A transmission assembly is disposed within the installation space, and the input end of the transmission assembly is connected to the output end of the first drive member, and the output end of the transmission assembly is connected to the damper mechanism in a transmission manner.

[0023] Beneficial effects: By fixing the first drive component to the housing, the stability of the power source installation and the reliability of power output are ensured. The transmission components are centrally located within the installation space, which not only makes full use of the structural space and makes the overall layout more compact, but also achieves smooth power transmission to the damper mechanism. Furthermore, the transmission components allow one first drive component to control multiple damper mechanisms simultaneously. In addition, the split structure reduces maintenance difficulty. If the first drive component or damper mechanism fails, it can be disassembled and repaired independently without disassembling the entire unit, effectively saving maintenance time and costs.

[0024] In one optional implementation, the transmission assembly includes:

[0025] The drive gear is connected to the output shaft of the first drive component;

[0026] The driven gear ring is arranged around the outer periphery of the air duct housing, meshes with the driving gear, and is connected to the damper mechanism for transmission.

[0027] Beneficial effects: The output shaft of the first driving component drives the active gear to rotate, which in turn drives the driven gear ring arranged around the air duct housing to rotate, ultimately transmitting power smoothly to the damper mechanism. The gear-ring meshing transmission method has a compact structure, saves installation space, and is stable and reliable in operation. At the same time, the surrounding driven gear ring can achieve synchronous linkage with multiple circumferentially arranged damper mechanisms, thereby completing centralized control of multiple dampers under the drive of a single driving source, effectively improving the system's integration and transmission efficiency.

[0028] In one optional implementation, the damper mechanism includes:

[0029] The airflow adjustment panel corresponds to the position of the second air outlet;

[0030] A transmission gear is located at one end of the air volume regulating plate and meshes with the driven gear ring.

[0031] Beneficial effects: By placing the transmission gear at one end of the airflow regulating plate and meshing it with the driven gear ring, the damper mechanism achieves direct power transmission from the transmission component to the airflow regulating plate. It can convert the rotation of the driven gear ring into the rotation of the airflow regulating plate. By controlling the rotation angle of the airflow regulating plate, the ventilation area of ​​the second air outlet is changed, thereby adjusting the airflow. At the same time, the gear meshing connection method is not only compact in structure, eliminating the need for additional connecting parts and simplifying the overall structure, but also effectively reduces the matching error between components, reduces energy loss in the intermediate transmission links, avoids lag or jamming problems that may occur during damper adjustment, improves transmission efficiency and operational reliability, and makes the damper mechanism adjustment more accurate and sensitive.

[0032] In one optional embodiment, the damper mechanism further includes a fixed shaft, and the airflow regulating plate and the transmission gear are both connected to the fixed shaft;

[0033] Along the axial direction of the duct housing, a first fixing ring and a second fixing ring are sequentially arranged in the installation space. The first fixing ring and the second fixing ring are both sleeved on the outer periphery of the duct housing, and the two ends of the fixing shaft are rotatably connected to the first fixing ring and the second fixing ring, respectively.

[0034] Beneficial effects: By setting the two ends of the fixed shaft to be rotatably connected to the first and second fixed rings sleeved on the outer periphery of the air duct housing, a uniform force support is provided for the air volume regulating plate, which enhances the stability of the air volume regulating plate during rotation, avoids tilting or shaking caused by unilateral force, and prevents the air volume regulating plate from shifting or getting stuck during airflow impact or rotation, thereby ensuring the accuracy of the second air outlet area adjustment and the stability of long-term operation.

[0035] In one alternative embodiment, the driven toothed ring is rotatably disposed on the second fixed ring.

[0036] Beneficial effects: By rotatably mounting the driven gear ring directly on the second fixed ring, a stable rotational support foundation is provided for the driven gear ring, enabling it to always rotate stably around the air duct housing along a preset trajectory. This effectively avoids adverse phenomena such as skewness, vibration, and even tooth breakage, improving the smoothness and accuracy of the meshing transmission between the driven gear ring and the driving gear, and ensuring that power is efficiently and stably transmitted to the damper mechanism.

[0037] In one alternative implementation, the duct assembly includes:

[0038] The second driving component is disposed inside the air duct housing;

[0039] The centrifugal impeller is located inside the air duct housing and is connected to the output shaft of the second drive component.

[0040] Beneficial effects: By fixing the second drive unit to the top wall of the housing and directly connecting its output shaft to the centrifugal impeller inside the air duct housing, the centrifugal impeller can be directly driven to rotate at high speed, thereby generating a powerful and concentrated centrifugal force, improving air intake efficiency and overall circulation power, and ensuring that the purified airflow is stably delivered to the first and second air outlets.

[0041] In one alternative embodiment, the duct housing is a volute.

[0042] Beneficial effects: By adopting the gradually expanding spiral structure of the volute, the airflow generated by the centrifugal impeller can be efficiently collected and smoothly guided along the spiral path, which helps to balance the airflow, reduce the generation of eddies and turbulence, and improve the stability and uniformity of the outlet airflow. Even under the condition of adjusting the ventilation area of ​​the air outlet, it can still ensure a stable air volume output and enhance the adaptability of the system. Attached Figure Description

[0043] To more clearly illustrate the technical solutions in the specific embodiments or related technologies of this utility model, the drawings used in the description of the specific embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0044] Figure 1 This is a schematic diagram of the structure of an air purification device according to an embodiment of the present utility model;

[0045] Figure 2 This is a side sectional view of the air purification device according to an embodiment of the present utility model;

[0046] Figure 3 for Figure 2 A magnified view of part A in the diagram;

[0047] Figure 4 This is a schematic diagram of the damper mechanism in the closed state according to an embodiment of the present utility model;

[0048] Figure 5 for Figure 4 A magnified view of part B in the diagram;

[0049] Figure 6 This is a schematic diagram of the damper mechanism in the open state according to an embodiment of the present utility model;

[0050] Figure 7 This is a schematic diagram of the damper mechanism according to an embodiment of the present utility model;

[0051] Figure 8 This is a schematic diagram of airflow in an air purification device according to an embodiment of the present invention.

[0052] Explanation of reference numerals in the attached figures:

[0053] 1. Outer casing; 11. First air outlet; 12. Second air outlet; 13. Air outlet grille;

[0054] 2. Damper mechanism; 21. Air volume regulating plate; 22. Transmission gear; 23. Fixed shaft;

[0055] 31. First driving component; 32. Transmission assembly; 321. Driving gear; 322. Driven gear ring;

[0056] 4. Air quality sensor;

[0057] 5. Duct assembly; 51. Duct housing; 511. Second outlet; 52. Second drive unit; 53. Centrifugal impeller;

[0058] 6. Purification filter;

[0059] 7. Installation space;

[0060] 8. First fixing ring;

[0061] 9. Second fixing ring. Detailed Implementation

[0062] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0063] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0064] In the description of this utility model, 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0065] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0066] The following is combined Figures 1 to 8 The following describes embodiments of the present invention.

[0067] According to an embodiment of the present invention, an air purification device is provided, including a housing 1, a damper mechanism 2, a drive mechanism, an air quality sensor 4, and a controller; the housing 1 is provided with a first air outlet 11 and a second air outlet 12; the damper mechanism 2 is movably disposed at the second air outlet 12 for adjusting the ventilation area of ​​the second air outlet 12; the drive mechanism is drivenly connected to the damper mechanism 2; the air quality sensor 4 is disposed on the housing 1; the controller is communicatively connected to both the drive mechanism and the air quality sensor 4.

[0068] In the above embodiment, the controller is communicatively connected to both the drive mechanism and the air quality sensor 4, enabling intelligent control of the damper mechanism 2. The ventilation area of ​​the second air outlet 12 can be dynamically adjusted based on the pollutant concentration data detected by the air quality sensor 4. This not only achieves on-demand purification—closing the second air outlet 12 to reduce energy consumption and noise when air quality is good, but also simultaneously opening the first air outlet 11 and the second air outlet 12 to accelerate air circulation and purification efficiency when pollution intensifies—but also allows for dynamic adjustment of the ventilation area of ​​the second air outlet 12. This can indirectly optimize the inlet air velocity using fluid dynamics principles, and the reasonable change in the inlet air velocity can directly enhance the adsorption capacity for pollutants such as pet hair, further ensuring the air purification effect. This improves both intelligence and energy efficiency while strengthening the overall purification performance. It solves the problem of air purifiers having a single air outlet mode, which affects the overall purification effect.

[0069] In a specific implementation, when the pollutant concentration data collected by the air quality sensor 4 is lower than the preset threshold, it indicates that the air quality is good, and the damper mechanism 2 will close the second air outlet 12 to reduce unnecessary energy consumption and airflow disturbance; when the collected pollutant concentration data is higher than the preset threshold, it indicates that the air quality needs to be improved, and the damper mechanism 2 will open the second air outlet 12 so that the purified air can be quickly diffused into the indoor space through the first air outlet 11 and the second air outlet 12 at the same time, thereby improving air circulation and purification efficiency.

[0070] In a specific embodiment, the first air outlet 11 is provided on the top wall of the outer casing 1, and an air outlet grille 13 is provided at the first air outlet 11.

[0071] In a specific embodiment, the air quality sensor 4 is one or more of a fine particulate matter (PM2.5) sensor, a formaldehyde sensor, a total volatile organic compound (TVOC) sensor, or an odor sensor. In this embodiment, the air quality sensor 4 is a fine particulate matter sensor.

[0072] Specifically, the controller is a microprocessor.

[0073] Specifically, the opening angle of the damper mechanism 2 can be dynamically adjusted in real time by the controller based on the pollutant concentration data collected in real time by the air quality sensor 4, thereby achieving intelligent optimization of ventilation effect. For example, when the PM2.5 concentration increases, the controller can automatically increase the opening angle of the damper mechanism 2 to enhance the air exchange efficiency.

[0074] In one embodiment, the first air outlet 11 is provided on the top wall of the housing 1; multiple second air outlets 12 are provided, and the multiple second air outlets 12 are arranged circumferentially around the side wall of the housing 1, and the second air outlets 12 correspond one-to-one with the damper mechanism 2.

[0075] In the above embodiment, by placing the first air outlet 11 on the top wall, it can assist in the upward exhaust of air and promote the vertical flow of the overall indoor airflow; by circumferentially surrounding the side walls with multiple second air outlets 12 corresponding one-to-one with the damper mechanism 2, circumferential three-dimensional air outlet is achieved, expanding the coverage of clean airflow and rapidly diluting and replacing indoor pollutants without dead angles. Each second air outlet 12 is equipped with an independent damper mechanism 2, realizing independent control of each second air outlet 12 and facilitating maintenance.

[0076] Specifically, multiple second air outlets 12 are arranged evenly around the circumference of the outer casing 1.

[0077] In one embodiment, the housing 1 is provided with an air inlet, and the air purification device further includes an air duct assembly 5 and a purification filter 6; the air duct assembly 5 is disposed inside the housing 1, and the inlet of the air duct assembly 5 is connected to the air inlet, the air duct assembly 5 has a first outlet and a second outlet 511, the first outlet is connected to a first air outlet 11, and the second outlet 511 is connected to a second air outlet 12; the purification filter 6 is disposed on the airflow path between the air inlet and the inlet of the air duct assembly 5.

[0078] In the above embodiment, a purification filter 6 is installed in the airflow path between the air inlet and the inlet of the air duct assembly 5 to purify the air entering the device. The purified air is distributed to the first outlet and the second outlet 511 via the air duct assembly 5. Since the first outlet is connected to the first air outlet 11 and the second outlet 511 is connected to the second air outlet 12, it is ensured that clean airflow can be output from the first air outlet 11 and the second air outlet 12 respectively, meeting different ventilation or purification needs.

[0079] In a specific embodiment, the first air outlet 11 is located on the top wall of the outer shell 1, the second air outlet 12 is located above the side wall of the outer shell 1, and the air inlet is located below the side wall of the outer shell 1; the air duct assembly 5 is fixed inside the top of the outer shell 1, the top wall of the air duct housing 51 is provided with a first outlet, the side wall of the air duct housing 51 is provided with a second outlet 511, the first outlet is connected to the first air outlet 11, and the second outlet 511 is connected to the second air outlet 12; the inlet of the air duct assembly 5 is located at the bottom of the air duct housing 51, and a hollow cylindrical purification filter 6 is provided below the air duct housing 51. The position of the purification filter 6 corresponds to the position of the air inlet below the side wall of the outer shell 1, forming a complete air duct path from bottom to top.

[0080] In one embodiment, the air duct assembly 5 includes an air duct housing 51 disposed inside the outer casing 1, and an installation space 7 is formed between the outer side wall of the air duct housing 51 and the inner side wall of the outer casing 1, and the damper mechanism 2 is rotatably disposed within the installation space 7.

[0081] In the above embodiment, by forming an independent installation space 7 through the gap between the duct housing 51 and the inner wall of the outer shell 1, the damper mechanism 2 is rotatably installed in this space. This not only makes effective use of the internal space and makes the overall layout more compact and reasonable, but also effectively avoids interference between the damper mechanism 2 and other components during the movement process by means of the independent installation space 7, ensuring the stability of the damper rotation process, thereby ensuring the reliability and stability of the ventilation area adjustment of the second air outlet 12.

[0082] In one embodiment, the drive mechanism includes a first drive member 31 and a transmission assembly 32; the first drive member 31 is fixed on the housing 1; the transmission assembly 32 is disposed in the installation space 7, and the input end of the transmission assembly 32 is connected to the output end of the first drive member 31, and the output end of the transmission assembly 32 is connected to the damper mechanism 2 in a transmission connection.

[0083] In the above embodiments, by fixing the first drive component 31 to the housing 1, the stability of the power source installation and the reliability of the power output are ensured. The transmission component 32 is centrally located within the installation space 7, which not only makes full use of the structural space and makes the overall layout more compact, but also realizes the smooth transmission of power to the damper mechanism 2. Furthermore, the transmission component 32 allows one first drive component 31 to control multiple damper mechanisms 2 simultaneously. In addition, the split structure reduces maintenance difficulty. If the first drive component 31 or the damper mechanism 2 malfunctions, it can be disassembled and repaired independently without disassembling the entire machine, effectively saving maintenance time and costs.

[0084] In one embodiment, the transmission assembly 32 includes a drive gear 321 and a driven gear ring 322; the drive gear 321 is connected to the output shaft of the first drive member 31; the driven gear ring 322 is arranged around the outer periphery of the air duct housing 51, meshes with the drive gear 321, and is connected to the damper mechanism 2 in a transmission manner.

[0085] In the above embodiment, the output shaft of the first driving member 31 drives the driving gear 321 to rotate, which in turn drives the driven gear ring 322 arranged around the air duct housing 51 to rotate, ultimately transmitting power smoothly to the damper mechanism 2. The gear and gear ring meshing transmission method has a compact structure, saving installation space 7, and is stable and reliable in operation. At the same time, the surrounding driven gear ring 322 can achieve synchronous linkage with multiple circumferentially arranged damper mechanisms 2, thereby completing centralized control of multiple dampers under the drive of a single driving source, effectively improving the system integration and transmission efficiency.

[0086] In one embodiment, the damper mechanism 2 includes an air volume regulating plate 21 and a transmission gear 22; the air volume regulating plate 21 corresponds to the position of the second air outlet 12; the transmission gear 22 is disposed at one end of the air volume regulating plate 21 and meshes with the driven gear ring 322.

[0087] In the above embodiment, the damper mechanism 2 directly transmits power from the transmission component 32 to the airflow regulating plate 21 by placing the transmission gear 22 at one end of the airflow regulating plate 21 and meshing it with the driven gear ring 322. This allows the rotation of the driven gear ring 322 to be converted into the rotation of the airflow regulating plate 21. By controlling the rotation angle of the airflow regulating plate 21, the ventilation area of ​​the second air outlet 12 is changed, thereby adjusting the airflow. At the same time, the gear meshing connection method is not only compact and eliminates the need for additional connecting parts, simplifying the overall structure, but also effectively reduces the fit error between components, reduces energy loss in the intermediate transmission links, avoids lag or jamming problems that may occur during damper adjustment, improves transmission efficiency and operational reliability, and makes the damper mechanism 2 more accurate and sensitive in its adjustment.

[0088] Specifically, the angle of the air volume regulating plate 21 can be adjusted within the range of 0° to 180°.

[0089] In one embodiment, the damper mechanism 2 further includes a fixed shaft 23, and the air volume regulating plate 21 and the transmission gear 22 are all connected to the fixed shaft 23; along the axial direction of the duct housing 51, a first fixed ring 8 and a second fixed ring 9 are sequentially arranged in the installation space 7, and the first fixed ring 8 and the second fixed ring 9 are both sleeved on the outer periphery of the duct housing 51, and the two ends of the fixed shaft 23 are rotatably connected to the first fixed ring 8 and the second fixed ring 9 respectively.

[0090] In the above embodiment, by setting the two ends of the fixed shaft 23 to be rotatably connected to the first fixed ring 8 and the second fixed ring 9 sleeved on the outer periphery of the air duct housing 51, a uniform force support is provided for the air volume regulating plate 21, which enhances the stability of the air volume regulating plate 21 during rotation, avoids tilting or shaking caused by unilateral force, and prevents the air volume regulating plate 21 from shifting or getting stuck during airflow impact or rotation, thereby ensuring the accuracy of the area adjustment of the second air outlet 12 and the stability of long-term operation.

[0091] In a specific implementation, the second fixing ring 9 is located below the first fixing ring 8, and the damper mechanism 2 is disposed between the first fixing ring 8 and the second fixing ring 9.

[0092] In one embodiment, the driven gear ring 322 is rotatably disposed on the second fixed ring 9.

[0093] In the above embodiment, by directly and rotatably mounting the driven gear ring 322 on the second fixed ring 9, a stable rotational support base is provided for the driven gear ring 322, enabling the driven gear ring 322 to always rotate stably around the air duct housing 51 along a preset trajectory, effectively avoiding adverse phenomena such as skewness, vibration, and even tooth loss, improving the smoothness and accuracy of the meshing transmission between the driven gear ring 322 and the driving gear 321, and ensuring that power is efficiently and stably transmitted to the damper mechanism 2.

[0094] Specifically, the driven gear ring 322 is rotatably connected above the second fixed ring 9. The teeth of the driven gear ring 322 are located on the inner ring, and there is a gap between the teeth and the air duct housing 51. The transmission gear 22 and the driving gear 321 are both located in the gap and mesh with the inner teeth of the driven gear ring 322.

[0095] Specifically, the second fixed ring 9 is provided with an installation port, the first driving member 31 is located below the second fixed ring 9 and is fixedly installed on the housing 1, and the output end of the first driving member 31 passes through the installation port provided on the second fixed ring 9 and meshes with the drive gear 321.

[0096] Specifically, multiple transmission gears 22 and a driving gear 321 are arranged circumferentially around the driven gear and mesh with the driven gear respectively, forming a transmission structure surrounding the driven gear.

[0097] In one embodiment, the duct assembly 5 includes a second drive member 52 and a centrifugal impeller 53; the second drive member 52 is disposed within the duct housing 51; the centrifugal impeller 53 is located within the duct housing 51 and is connected to the output shaft of the second drive member 52.

[0098] In the above embodiment, by fixing the second drive component 52 to the top wall of the outer casing 1 and directly connecting its output shaft to the centrifugal impeller 53 inside the air duct casing 51, the centrifugal impeller 53 can be directly driven to rotate at high speed, thereby generating a powerful and concentrated centrifugal wind force, improving the air intake efficiency and overall circulation power, and ensuring that the purified airflow is stably delivered to the first air outlet 11 and the second air outlet 12.

[0099] Specifically, the second drive component 52 is a DC motor.

[0100] In one embodiment, the duct housing 51 is a volute.

[0101] In the above embodiments, by adopting the gradually expanding spiral structure of the volute, the airflow generated by the centrifugal impeller 53 can be efficiently collected and smoothly guided along the spiral path, which helps to balance the airflow, reduce the generation of eddies and turbulence, and improve the stability and uniformity of the outlet airflow. Even under the condition of adjusting the ventilation area of ​​the air outlet, it can still ensure a stable air volume output and enhance the adaptability of the system.

[0102] Specifically, after the air purification device is activated, it collects real-time data on the concentration of external pollutants through air quality sensor 4. For example... Figure 4 As shown, when the PM2.5 concentration is detected to be below a set threshold, the controller sends a first signal to the first drive unit 31. The drive unit controls the damper mechanism 2 to close the second air outlet 12 above the side wall of the housing 1 via the transmission assembly 32. At this time, all the air filtered by the purification filter 6 is discharged from the first air outlet 11 at the top. Figure 6As shown, when the PM2.5 concentration is higher than the set threshold, the controller sends a second signal, and the first drive component 31 drives the damper mechanism 2 to rotate through the transmission component 32, increasing the ventilation area of ​​the second air outlet 12 on the side wall, so that the purified air can be discharged from the second air outlet 12 and the first air outlet 11 at the same time, thereby enhancing the indoor air circulation and purification efficiency.

[0103] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. An air purification device, characterized in that, include: The outer casing (1) is provided with a first air outlet (11) and a second air outlet (12); The damper mechanism (2) is movably disposed at the second air outlet (12) and is used to adjust the ventilation area of ​​the second air outlet (12); The drive mechanism is connected to the damper mechanism (2) in a transmission manner; An air quality sensor (4) is mounted on the housing (1); The controller is communicatively connected to both the drive mechanism and the air quality sensor (4).

2. The air purification device according to claim 1, characterized in that, The first air outlet (11) is located on the top wall of the outer shell (1); there are multiple second air outlets (12), which are arranged circumferentially around the side wall of the outer shell (1), and each second air outlet (12) corresponds to the damper mechanism (2).

3. The air purification device according to claim 1 or 2, characterized in that, The outer casing (1) is provided with an air inlet, and the air purification device further includes: A duct assembly (5) is disposed inside the housing (1), and the inlet of the duct assembly (5) is connected to the air inlet. The duct assembly (5) has a first outlet and a second outlet (511). The first outlet is connected to the first air outlet (11), and the second outlet (511) is connected to the second air outlet (12). A purification filter (6) is disposed on the airflow path between the air inlet and the inlet of the air duct assembly (5).

4. The air purification device according to claim 3, characterized in that, The air duct assembly (5) includes: The air duct housing (51) is disposed inside the outer shell (1), and an installation space (7) is formed between the outer side wall of the air duct housing (51) and the inner side wall of the outer shell (1), and the damper mechanism (2) is rotatably disposed in the installation space (7).

5. The air purification device according to claim 4, characterized in that, The drive mechanism includes: The first driving component (31) is fixed to the outer casing (1); A transmission assembly (32) is disposed within the installation space (7), and the input end of the transmission assembly (32) is connected to the output end of the first drive member (31), and the output end of the transmission assembly (32) is connected to the damper mechanism (2) in a transmission connection.

6. The air purification device according to claim 5, characterized in that, The transmission assembly (32) includes: The drive gear (321) is connected to the output shaft of the first drive member (31); The driven gear ring (322) is arranged around the outer periphery of the air duct housing (51), meshes with the driving gear (321), and is connected to the damper mechanism (2) for transmission.

7. The air purification device according to claim 6, characterized in that, The damper mechanism (2) includes: The air volume regulating plate (21) corresponds to the position of the second air outlet (12); A transmission gear (22) is disposed at one end of the air volume regulating plate (21) and meshes with the driven gear ring (322).

8. The air purification device according to claim 7, characterized in that, The damper mechanism (2) also includes a fixed shaft (23), and the air volume regulating plate (21) and the transmission gear (22) are both connected to the fixed shaft (23); Along the axial direction of the air duct housing (51), a first fixing ring (8) and a second fixing ring (9) are sequentially provided in the installation space (7). The first fixing ring (8) and the second fixing ring (9) are both sleeved on the outer periphery of the air duct housing (51). The two ends of the fixing shaft (23) are rotatably connected to the first fixing ring (8) and the second fixing ring (9) respectively.

9. The air purification device according to claim 8, characterized in that, The driven gear ring (322) is rotatably mounted on the second fixed ring (9).

10. The air purification device according to any one of claims 4 to 9, characterized in that, The air duct assembly (5) includes: The second drive unit (52) is disposed inside the air duct housing (51); Centrifugal impeller (53) is located inside the air duct housing (51) and is connected to the output shaft of the second drive unit (52).

11. The air purification device according to any one of claims 4 to 9, characterized in that, The air duct housing (51) is a volute.

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