An intelligent fresh air control system

Abstract

The application discloses a kind of intelligent fresh air control systems, including ventilation box, air inlet pipe, first filter screen, air outlet pipe and filter screen frame, the position of ventilation box inner wall close to air inlet pipe is fixed with lower baffle, ventilation box inner wall is fixed with upper baffle, the side wall of upper baffle close to first filter screen side is fixed with extension plate, upper filter sterilization component is arranged between the top of upper baffle and the top of ventilation box inner, lower sterilization component is arranged between the bottom of upper baffle and the top of lower baffle, air quality monitor is embedded in the side wall of air inlet pipe away from ventilation box side, controller is fixed on the side wall of ventilation box, air inlet pipe is provided with wind blocking mechanism controlled by controller.The fresh air control system in the application can monitor air quality, high-quality air can enter indoor without filtering, poor-quality air can enter indoor after filtering and sterilization, and can improve ventilation efficiency and save energy when air quality is good.

Description

Technical Field

[0001] This invention relates to the field of fresh air system technology, and in particular to an intelligent fresh air control system. Background Technology

[0002] A fresh air control system utilizes patented fresh air convection technology to achieve indoor air convection through autonomous air supply and exhaust, thereby maximizing indoor air replacement. The built-in multi-functional purification system ensures clean and healthy air entering the room. Fresh air units are common equipment in fresh air control systems, mainly divided into exhaust-type and supply-type units. They can be installed in most indoor environments, are easy to install, and offer comfortable use.

[0003] Chinese invention patent CN218269501U discloses an indoor ventilation and smog removal fresh air system. The system includes a base, motor, processing box, filter element, ultraviolet lamp, cooling box, horizontal plate, air guide plate, mounting plate, and fan. An air inlet pipe is installed on the base, and an electrostatic dust removal screen is installed inside the base. A hollow shaft is rotatably mounted on the base, and the motor drives and connects to the hollow shaft. The mounting plate is mounted on the horizontal plate, and the fan is mounted on the mounting plate and blows air towards the air outlet.

[0004] Regarding the aforementioned technologies, the inventors believe that the following defects exist: When the outdoor air quality is poor, the air can be purified by a filtration system before being discharged indoors. However, when the outdoor air quality is good, the existing fresh air system also flows along the same path, which affects the ventilation efficiency of the fresh air system. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides an intelligent fresh air control system.

[0006] The above-mentioned technical objective of the present invention is achieved through the following technical solution: an intelligent fresh air control system, comprising a wall-mounted ventilation box, an air inlet pipe embedded in the wall, a first filter screen disposed at the air inlet of the air inlet pipe, an air outlet pipe embedded in the wall, and a filter screen frame disposed at the air outlet of the air outlet pipe. The air inlet pipe and the air outlet pipe are both fixed to and connected to the ventilation box. On the side of the ventilation box away from the first filter screen, from top to bottom, are arranged a first air outlet, a second air outlet, and a third air outlet. The first air outlet, the second air outlet, and the third air outlet are respectively provided with a second filter screen, a third filter screen, and an air outlet mesh plate. A lower partition is fixed to the inner wall of the ventilation box near the air inlet pipe. An upper partition is fixed to the inner wall of the ventilation box near the middle of the air inlet pipe. An extension plate extending into the air inlet pipe is fixed to the side wall of the upper partition near the first filter screen. An upper filter sterilization component is provided between the top of the upper partition and the top of the ventilation box. A lower sterilization component is provided between the bottom of the upper partition and the top of the lower partition. An air quality monitor is embedded in the side wall of the air inlet pipe away from the ventilation box. A controller is fixed to the side wall of the ventilation box. A wind-blocking mechanism controlled by the controller is provided in the air inlet pipe. The wind-blocking mechanism is used to allow high-quality air entering the air inlet pipe to flow into the bottom of the upper partition, and low-quality air entering the air inlet pipe to flow into the top of the upper partition.

[0007] By adopting the above technical solution, the air quality monitor can detect the outdoor air quality in real time. When the air quality is good, the controller controls the wind deflector mechanism to rotate upward, blocking the air intake channel between the top of the upper partition and the inner top wall of the air intake duct. The air directly enters the air intake channel between the bottom of the upper partition and the top of the lower partition. After simple sterilization by the lower sterilization component, the air enters the room through the third filter. The indoor air passes through the air outlet screen between the bottom of the lower partition and the ventilation box, and then is discharged outdoors through the filter frame of the air outlet duct, forming an air circulation. This eliminates the cumbersome process of filtering the good air entering the room and improves ventilation efficiency. When the air quality monitor detects poor air quality, the controller activates the wind deflector mechanism, causing the wind deflector to rotate downwards. The wind deflector blocks the air intake channel between the bottom of the upper partition and the bottom wall of the air inlet duct, allowing air to directly enter the space between the top of the upper partition and the top wall of the ventilation box. After being filtered and sterilized by the upper filtration and sterilization components, clean air enters the room through the third filter. Similarly, polluted air in the room is discharged outdoors through the filter frame of the air outlet duct, forming an air circulation.

[0008] Furthermore, the windbreak mechanism includes a windbreak assembly and a drive assembly. The windbreak assembly includes an upper baffle fixed to the top wall of the air inlet pipe near the ventilation box, a lower baffle fixed to the bottom wall of the air inlet pipe near the ventilation box, and a windbreak plate rotatably connected to the side wall of the air inlet pipe. The lower baffle corresponds to the upper baffle. When the windbreak plate is vertical, the side wall of one side of the windbreak plate is flush with the side walls of both the upper and lower baffle plates. The central axis of the windbreak plate is at the same height as the middle of the upper partition plate. The drive assembly is used to drive the central axis of the windbreak plate to rotate.

[0009] Furthermore, the drive assembly is located outside the air inlet duct. The drive assembly includes an L-shaped plate fixed to the outer wall of the ventilation box, a motor fixed to the L-shaped plate, a drive gear fixedly sleeved on the output shaft of the motor, and a driven gear sleeved on the central shaft and meshing with the drive gear. The driven gear is fixed to the central shaft by a connecting assembly.

[0010] By adopting the above technical solution, the air quality monitor can detect the outdoor air quality in real time, and the monitoring results are transmitted to the controller in real time. The controller controls the forward or reverse rotation of the motor according to the air quality, so that the wind deflector blocks the air intake channel between the top of the upper partition and the inner top wall of the air intake pipe, or blocks the air intake channel between the bottom of the upper partition and the top of the lower partition.

[0011] Furthermore, an intelligent positioning component is provided inside the air inlet duct. The intelligent positioning component includes an upper laser emitter embedded in the inner wall of the upper baffle near the first filter screen, an upper mounting plate fixed to the top wall of the air inlet duct, an upper laser receiver embedded in the upper mounting plate at a position corresponding to the upper laser emitter, a lower laser emitter embedded in the inner wall of the lower baffle near the first filter screen, a lower mounting plate fixed to the bottom wall of the air inlet duct, and a lower laser receiver embedded in the lower mounting plate at a position corresponding to the lower laser emitter.

[0012] By adopting the above technical solution, the laser emitted by the upper laser emitter can be received by the upper laser receiver, and the laser emitted by the lower laser emitter can be received by the lower laser receiver. When the motor drives the baffle to rotate, the baffle gradually blocks the signal reception of the upper or lower laser receiver. At this time, the controller controls the motor to move slowly until the light signal is completely blocked. Then, the controller controls the motor to stop rotating. At this time, the surface of the baffle away from the first filter is flush with the surface of the upper baffle close to the first filter, which reflects the intelligence of the fresh air control system.

[0013] Furthermore, vertical grooves are provided on the inner walls of both sides of the air inlet duct near the first filter screen. A cleaning mechanism for cleaning the first filter screen is provided inside the air inlet duct. The cleaning mechanism includes a cleaning component and a transmission component. The cleaning component includes a cleaning brush that is slidably connected to the vertical groove, a U-shaped guide rail that is fixed to the inner wall of the air inlet duct and slidably connected to the handle of the cleaning brush, and a first spring that is fixed to the bottom surface of the handle of the cleaning brush. The bristles of the cleaning brush are pressed against the surface of the first filter screen near the ventilation box. The transmission component and the drive component share a drive component and are used to drive the cleaning brush to move vertically. The U-shaped guide rail passes through the bottom wall of the air inlet duct and is flush with the bottom surface of the air inlet duct. The bottom surface of the handle of the cleaning brush is flush with the bottom wall of the air inlet duct. The lower end of the first spring is fixed to the U-shaped part of the U-shaped guide rail.

[0014] By adopting the above technical solution, the transmission component and the drive component share a single drive unit. After the motor starts working, the transmission component controls the vertical movement of the cleaning brush, thereby enabling the bristles of the cleaning brush to clean the first filter screen. This removes debris such as willow catkins and dust from the first filter screen, reducing the probability of the air inlet of the air inlet pipe being blocked and improving ventilation efficiency.

[0015] Furthermore, the top of the air inlet pipe is provided with a transverse groove communicating with the vertical groove, and the inner wall of the air inlet pipe near the baffle plate is provided with an installation groove communicating with the transverse groove. The central shaft and the output shaft of the motor both pass through the side wall of the air inlet pipe and are rotatably connected. The output shaft of the motor and the central shaft both pass through the installation groove. The transmission assembly includes a traction rope fixed to the top of the cleaning brush handle, a first fixed pulley rotatably connected to the top of the vertical groove, a second fixed pulley rotatably connected to the top of the installation groove, and a winding roller fixedly sleeved on the output shaft of the motor and located in the installation groove. The traction rope passes around the first fixed pulley and the second fixed pulley in sequence and is wound and fixed on the winding roller.

[0016] By adopting the above technical solution, after the motor starts working, the output shaft of the motor drives the winding roller to rotate, and the traction rope gradually winds around the winding roller, thereby causing the cleaning brush to gradually move in the vertical direction, and the bristles of the cleaning brush gradually clean the first filter screen.

[0017] Furthermore, the connecting assembly includes a square rod fixed to one end of the central axis located outside the air inlet pipe, a fixing plate fixed to the end of the square rod away from the square rod, and a second spring sleeved on the square rod; the square rod passes through the driven gear and is slidably connected to the driven gear, the fixing plate abuts against the side wall of the driven gear away from the air inlet pipe, and the two ends of the second spring abut against the outer wall of the air inlet pipe and the driven gear, respectively.

[0018] Furthermore, a protective cover is fixed to the surface of the ventilation box near the first filter screen. An adjustment assembly for driving the driven gear to separate from the driving gear is provided inside the protective cover. The adjustment assembly includes a cylinder fixed to the inner wall of the protective cover, a U-shaped rod fixed to the end of the cylinder's output rod, and a ball embedded in the end of the U-shaped rod near the air inlet pipe. An annular groove for the ball to roll and connect is provided on the side wall of the driven gear away from the air inlet pipe. A transparent and openable side door is provided on the protective cover.

[0019] By adopting the above technical solution, during the cleaning of the first filter screen using the cleaning component, the baffle plate cannot rotate with the motor. At this time, the operator only needs to activate the cylinder, causing the cylinder output rod to drive the U-shaped rod to move, thereby causing the driven gear to move along the square rod towards the side away from the cylinder until the driven gear is completely disengaged from the driving gear. After the motor starts working, it will not drive the central shaft to rotate. After the first filter screen is cleaned, in order for the baffle plate to rotate normally, the operator only needs to open the side door, manually adjust the driven gear to the state of engagement with the driving gear, and then close the side door, using the cylinder to drive the driven gear to reset. During the rotation of the baffle plate, the ball bearings reduce the friction between the U-shaped rod and the driven gear. Since the rotation range of the baffle plate is only 180°, and the air quality is usually uniform for a period of time, the friction between the second spring and the driven gear and the air inlet pipe is negligible and within the tolerance range of the driven gear and the air inlet pipe. It should be noted that in this application, the air inlet pipe of the drive component is located outside the wall and inside the protective cover.

[0020] Furthermore, the upper filtration and sterilization assembly includes a fine filter screen disposed between the upper partition and the top wall of the ventilation box, an activated carbon filter screen disposed between the upper partition and the top wall of the ventilation box, and a plurality of upper ultraviolet germicidal lamps fixed between the upper partition and the top wall of the ventilation box; the lower sterilization assembly includes a plurality of lower ultraviolet germicidal lamps arranged in parallel.

[0021] By adopting the above technical solution, when the air quality is poor, the airflow enters between the upper partition and the top wall of the ventilation box, where a fine filter and an activated carbon filter filter the air twice. Subsequently, the air is sterilized by the upper ultraviolet germicidal lamp, significantly improving air quality. When the air quality is good, the airflow enters between the upper and lower partitions, requiring only the lower ultraviolet germicidal lamp to sterilize the air, thus improving air quality and ventilation efficiency.

[0022] In summary, the present invention has the following beneficial effects:

[0023] 1. In this application, the fresh air control system can monitor air quality. High-quality air can enter the room without filtration, while poor-quality air must be filtered and sterilized before entering the room. This can improve ventilation efficiency and save energy when the air quality is good.

[0024] 2. In this application, the laser emitted by the upper laser emitter can be received by the upper laser receiver, and the laser emitted by the lower laser emitter can be received by the lower laser receiver. When the motor drives the wind deflector to rotate, the wind deflector gradually blocks the signal reception of the upper or lower laser receiver. At this time, the controller controls the motor to move slowly until the light signal is completely blocked. Then the controller controls the motor to stop rotating. At this time, the surface of the wind deflector away from the first filter screen is flush with the surface of the upper baffle close to the first filter screen, which reflects the intelligence of the fresh air control system.

[0025] 3. In this application, the transmission component and the drive component share a single drive unit. After the motor starts working, the transmission component controls the vertical movement of the cleaning brush, thereby enabling the bristles of the cleaning brush to clean the first filter screen. This removes debris such as willow catkins and dust from the first filter screen, reducing the probability of the air inlet of the air inlet pipe being blocked and improving ventilation efficiency. Attached Figure Description

[0026] Figure 1 , Figure 2 These are all schematic diagrams of the overall structure of embodiments of the present invention;

[0027] Figure 3 This is a schematic diagram illustrating the internal structure of the ventilation box, air inlet pipe, and air outlet pipe in an embodiment of the present invention.

[0028] Figure 4 , Figure 5 This is a schematic diagram illustrating the structure of the cleaning mechanism in an embodiment of the present invention;

[0029] Figure 6 yes Figure 5 Enlarged diagram of point A in the middle.

[0030] In the diagram: 1. Ventilation box; 2. Air inlet duct; 21. First filter screen; 22. Vertical slide groove; 23. Horizontal slide groove; 24. Mounting groove; 3. Air outlet duct; 31. Filter screen frame; 4. Upper filter sterilization assembly; 41. Fine filter screen; 42. Activated carbon filter screen; 43. Upper ultraviolet germicidal lamp; 5. Lower sterilization assembly; 51. Lower ultraviolet germicidal lamp; 6. Wind baffle mechanism; 61. Wind baffle assembly; 611. Upper baffle; 612. Lower baffle; 613. Wind baffle plate; 62. Drive assembly; 621. L-shaped plate; 622. Motor; 623. Drive gear; 624. Driven gear; 6241. Annular groove; 7. Intelligent positioning assembly; 71. Upper laser emitter; 72. Upper mounting plate; 73. Upper laser receiver; 74. Lower laser emitter; 75. Lower mounting plate; 76. 8. Lower laser receiver; 8. Cleaning mechanism; 81. Cleaning assembly; 811. Cleaning brush; 812. U-shaped guide rail; 813. First spring; 82. Transmission assembly; 821. Traction rope; 822. First fixed pulley; 823. Second fixed pulley; 824. Winding roller; 9. Adjustment assembly; 91. Cylinder; 92. U-shaped rod; 93. Ball bearing; 10. First air outlet; 101. Second filter screen; 11. Second air outlet; 111. Third filter screen; 12. Third air outlet; 121. Air outlet mesh plate; 13. Lower partition; 131. Extension plate; 14. Air quality monitor; 15. Controller; 16. Connecting assembly; 161. Square rod; 162. Fixing plate; 163. Second spring; 17. Protective cover; 171. Side door; 18. Upper partition; 19. Central shaft. Detailed Implementation

[0031] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0032] like Figure 1-6As shown in the figure, this application discloses an intelligent fresh air control system, including a ventilation box 1, an air inlet pipe 2, an air outlet pipe 3, an upper filter sterilization component 4, a lower sterilization component 5, a windbreak mechanism 6, an intelligent positioning component 7, a cleaning mechanism 8, and an adjustment component 9. The ventilation box 1 is wall-mounted, with the air inlet pipe 2 and the air outlet pipe 3 partially embedded in the outer wall. Both the air inlet pipe 2 and the air outlet pipe 3 are fixed to and connected to the ventilation box 1. A first filter screen 21 is provided at the air inlet of the air inlet pipe 2, and a filter screen frame 31 is provided at the air outlet of the air outlet pipe 3. A first air vent 10, a second air vent 11, and a third air vent 12 are provided from top to bottom on the side of the ventilation box 1 away from the first filter screen 21, and a second filter screen 101, a third filter screen 111, and an air outlet mesh plate 121 are respectively provided in the first air vent 10, the second air vent 11, and the third air vent 12.

[0033] In this embodiment, a lower partition 13 is fixed to the inner wall of the ventilation box 1 near the air inlet pipe 2, and an extension plate 131 extending into the air inlet pipe 2 is fixed to the side wall of the upper partition 18 near the first filter screen 21. An upper filtration and sterilization assembly 4 is disposed between the top of the upper partition 18 and the top of the ventilation box 1. The upper filtration and sterilization assembly 4 includes a fine filter screen 41 disposed between the upper partition 18 and the top wall of the ventilation box 1, an activated carbon filter screen 42 disposed between the upper partition 18 and the top wall of the ventilation box 1, and multiple upper ultraviolet germicidal lamps 43 fixed between the upper partition 18 and the top wall of the ventilation box 1. A lower sterilization assembly 5 is disposed between the bottom of the upper partition 18 and the top of the lower partition 13. The lower sterilization assembly 5 includes multiple parallel lower ultraviolet germicidal lamps 51.

[0034] To monitor air quality, an air quality monitor 14 is embedded in the side wall of the air inlet duct 2 away from the ventilation box 1, and a controller 15 is fixed on the side wall of the ventilation box 1. A wind deflector 6 is installed inside the air inlet duct 2 and controlled by the controller 15. The wind deflector 6 is used to allow high-quality air entering the air inlet duct 2 to flow into the bottom of the upper partition 18 or to allow low-quality air entering the air inlet duct 2 to flow into the top of the upper partition 18. The wind baffle mechanism 6 includes a wind baffle assembly 61 and a drive assembly 62. The wind baffle assembly 61 has an upper baffle 611 fixed to the inner top wall of the air inlet pipe 2 near the ventilation box 1, a lower baffle 612 fixed to the inner bottom wall of the air inlet pipe 2 near the ventilation box 1, and a wind baffle plate 613 rotatably connected to the side wall of the air inlet pipe 2. The lower baffle plate 612 corresponds to the upper baffle plate 611. When the wind baffle plate 613 is vertical, the side wall of one side of the wind baffle plate 613 is flush with the side wall of the upper baffle plate 611 and the side wall of the lower baffle plate 612. The central axis 19 of the wind baffle plate 613 is at the same height as the middle of the upper partition plate 18. The drive assembly 62 is used to drive the central axis 19 of the wind baffle plate 613 to rotate. The drive assembly 62 is located outside the air inlet duct 2. The drive assembly 62 includes an L-shaped plate 621 fixed to the outer wall of the ventilation box 1, a motor 622 fixed to the L-shaped plate 621, a drive gear 623 fixedly sleeved on the output shaft of the motor 622, and a driven gear 624 sleeved on the central shaft 19 and meshing with the drive gear 623. The driven gear 624 is fixed to the central shaft 19 by a connecting assembly 16.

[0035] The air quality monitor 14 can detect the outdoor air quality in real time. When the air quality is good, the controller 15 controls the motor 622 to run. The motor 622 drives the drive gear 623 to rotate. The drive gear 623 drives the driven gear 624, the central shaft 19 fixed to the driven gear 624, and the baffle 613 fixed to the central shaft 19 to rotate until the air intake channel between the top of the upper partition 18 and the inner top wall of the air intake pipe 2 is blocked by the baffle 613. The air directly enters the air intake channel between the bottom of the upper partition 18 and the top of the lower partition 612. After simple sterilization by the lower sterilization component 5, the air enters the room through the third filter 111. The indoor air passes through the bottom of the lower partition 612 and the ventilation box 1 through the air outlet screen 121, and then is discharged to the outside through the filter frame 31 of the air outlet pipe 3, forming an air circulation. This eliminates the cumbersome filtering of the good air entering the room and improves ventilation efficiency. When the air quality is poor, the controller 15 controls the motor 622 to run in reverse, causing the baffle 613 to rotate downwards. The air intake channel between the bottom of the upper partition 18 and the inner bottom wall of the air inlet duct 2 is blocked by the baffle 613, and the air directly enters the space between the top of the upper partition 18 and the inner top wall of the ventilation box 1. After being filtered and sterilized by the upper filter sterilization component 4, the clean air enters the room through the third filter screen 111. Similarly, the polluted air in the room is discharged to the outside through the filter screen frame 31 of the air outlet duct 3, forming an air circulation.

[0036] The intelligent positioning component 7 is disposed inside the air inlet duct 2. The intelligent positioning component 7 includes an upper laser emitter 71 embedded in the inner wall of the upper baffle 611 near the first filter screen 21, an upper mounting plate 72 fixed to the inner top wall of the air inlet duct 2, an upper laser receiver 73 embedded in the upper mounting plate 72 at the position corresponding to the upper laser emitter 71, a lower laser emitter 74 embedded in the inner wall of the lower baffle 612 near the first filter screen 21, a lower mounting plate 75 fixed to the inner bottom wall of the air inlet duct 2, and a lower laser receiver 76 embedded in the lower mounting plate 75 at the position corresponding to the lower laser emitter 74. The laser emitted by the upper laser emitter 71 can be received by the upper laser receiver 73, and the laser emitted by the lower laser emitter 74 can be received by the lower laser receiver 76. When the motor 622 drives the baffle 613 to rotate, the baffle 613 gradually blocks the signal reception of the upper laser receiver 73 or the lower laser receiver 76. At this time, the controller 15 controls the motor 622 to move slowly until the light signal is completely blocked. Then, the controller 15 controls the motor 622 to stop rotating. At this time, the surface of the baffle 613 away from the first filter 21 is flush with the surface of the upper baffle 611 close to the first filter 21, which reflects the intelligence of the fresh air control system.

[0037] Vertical grooves 22 are provided on the inner walls of both sides of the air inlet duct 2 near the first filter screen 21. The cleaning mechanism 8 is set inside the air inlet duct 2 and is used to clean the first filter screen 21. The cleaning mechanism 8 includes a cleaning component 81 and a transmission component 82. The cleaning component 81 includes a cleaning brush 811 that is slidably connected to the vertical groove 22, a U-shaped guide rail 812 that is fixed to the inner wall of the air inlet duct 2 and slidably connected to the handle of the cleaning brush 811, and a first spring 813 that is fixed to the bottom surface of the handle of the cleaning brush 811. The bristles of the cleaning brush 811 are pressed against the surface of the first filter screen 21 near the ventilation box 1. The transmission component 82 shares a driving component with the drive component 62 and is used to drive the cleaning brush 811 to move vertically. The U-shaped guide rail 812 passes through the inner bottom wall of the air inlet duct 2 and is flush with the bottom surface of the air inlet duct 2. The bottom surface of the handle of the cleaning brush 811 is flush with the inner bottom wall of the air inlet duct 2. The lower end of the first spring 813 is fixed to the U-shaped part of the U-shaped guide rail 812. The transmission component 82 and the drive component 62 share a drive unit. After the motor 622 is working, the transmission component 82 controls the cleaning brush 811 to move vertically, so that the bristles of the cleaning brush 811 clean the first filter screen 21, so that the willow catkins, dust and other debris on the first filter screen 21 are removed, reducing the probability of the air inlet of the air inlet pipe 2 being blocked and improving the ventilation efficiency.

[0038] The top of the air inlet pipe 2 is provided with a transverse slide groove 23 that communicates with the vertical slide groove 22. The inner wall of the air inlet pipe 2 is provided with a mounting groove 24 that communicates with the transverse slide groove 23 near the wind baffle 613. The central shaft 19 and the output shaft of the motor 622 both pass through the side wall of the air inlet pipe 2 and are rotatably connected. The output shaft of the motor 622 and the central shaft 19 both pass through the mounting groove 24. The transmission assembly 82 includes a traction rope 821 fixed to the top of the brush handle of the cleaning brush 811, a first fixed pulley 822 rotatably connected to the top of the vertical slide groove 22, a second fixed pulley 823 rotatably connected to the top of the mounting groove 24, and a winding roller 824 fixedly sleeved on the output shaft of the motor 622 and located in the mounting groove 24. The traction rope 821 passes around the first fixed pulley 822 and the second fixed pulley 823 in sequence and is wound and fixed on the winding roller 824. After the motor 622 starts working, the output shaft of the motor 622 drives the winding roller 824 to rotate, and the traction rope 821 gradually winds around the winding roller 824, so that the cleaning brush 811 gradually moves in the vertical direction, and the bristles of the cleaning brush 811 gradually clean the first filter screen 21.

[0039] The connecting assembly 16 includes a square rod 161 fixed at one end to the central shaft 19 outside the air inlet pipe 2, a fixing plate 162 fixed at the end of the square rod 161 away from the square rod 161, and a second spring 163 sleeved on the square rod 161. The square rod 161 passes through the driven gear 624 and is slidably connected to the driven gear 624. The fixing plate 162 abuts against the side wall of the driven gear 624 away from the air inlet pipe 2. The two ends of the second spring 163 abut against the outer wall of the air inlet pipe 2 and the driven gear 624, respectively.

[0040] A protective cover 17 is fixed to the surface of the ventilation box 1 near the first filter screen 21. An adjustment component 9 is provided inside the protective cover 17 to drive the driven gear 624 to separate from the driving gear 623. The adjustment component 9 includes a cylinder 91 fixed to the inner wall of the protective cover 17, a U-shaped rod 92 fixed to the end of the output rod of the cylinder 91, and a ball bearing 93 embedded in the end of the U-shaped rod 92 near the air inlet pipe 2. An annular groove 6241 for the ball bearing 93 to roll and connect is opened on the side wall of the driven gear 624 away from the air inlet pipe 2. A transparent and openable side door 171 is provided on the protective cover 17. During the cleaning of the first filter screen 21 using the cleaning assembly 81, the baffle plate 613 cannot rotate with the motor 622. At this time, the operator only needs to activate the cylinder 91, causing the output rod of the cylinder 91 to drive the U-shaped rod 92 to move. This causes the driven gear 624 to move along the square rod 161 towards the side away from the cylinder 91 until the driven gear 624 is completely disengaged from the driving gear 623. After the motor 622 starts working, it will not drive the central shaft 19 to rotate. After the first filter screen 21 is cleaned, in order for the baffle plate 613 to rotate normally, the operator only needs to open the side door 171, manually adjust the driven gear 624 to the state of engagement with the driving gear 623, then close the side door 171, and use the cylinder 91 to drive the driven gear 624 to reset. During the rotation of the baffle 613, the ball bearing 93 reduces the friction between the U-shaped rod 92 and the driven gear 624. Since the rotation range of the baffle 613 is only 180°, the air quality is usually uniform for a period of time. Therefore, the friction between the second spring 163 and the driven gear 624 and the air inlet pipe 2 is negligible and within the bearing capacity of the driven gear 624 and the air inlet pipe 2. It should be noted that in this application, the air inlet pipe 2 at the component of the drive assembly 62 is located outside the wall and inside the protective cover 17. In this example, only one side of the drive assembly 62 is shown. In reality, drive assemblies 62 are provided on both sides of the air inlet pipe 2 to drive the traction ropes 821 on both sides to gradually tighten.

[0041] The operating principle of the intelligent fresh air control system in this embodiment is as follows: the air quality monitor 14 can detect the outdoor air quality in real time. When the air quality is good, the controller 15 controls the motor 622 to run. The motor 622 drives the drive gear 623 to rotate. The drive gear 623 drives the driven gear 624, the central shaft 19 fixed to the driven gear 624, and the baffle plate 613 fixed to the central shaft 19 to rotate until the air intake channel between the top of the upper partition 18 and the inner top wall of the air intake pipe 2 is blocked by the baffle plate 613. The air directly enters the air intake channel between the bottom of the upper partition 18 and the top of the lower baffle 612. After simple sterilization by the lower sterilization component 5, it enters the room through the third filter 111. The indoor air passes through the bottom of the lower baffle 612 and the ventilation box 1 through the air outlet screen 121, and then is discharged to the outside through the filter frame 31 of the air outlet pipe 3, forming an air circulation. This eliminates the cumbersome filtration of the good air entering the room and improves ventilation efficiency. When the air quality is poor, the controller 15 controls the motor 622 to run in reverse, causing the baffle 613 to rotate downwards. The air intake channel between the bottom of the upper partition 18 and the inner bottom wall of the air inlet duct 2 is blocked by the baffle 613, and the air directly enters the space between the top of the upper partition 18 and the inner top wall of the ventilation box 1. After being filtered and sterilized by the upper filter sterilization component 4, the clean air enters the room through the third filter screen 111. Similarly, the polluted air in the room is discharged to the outside through the filter screen frame 31 of the air outlet duct 3, forming an air circulation.

[0042] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. An intelligent fresh air control system, comprising a wall-mounted ventilation box (1), an air inlet pipe (2) embedded in the wall, a first filter (21) installed at the air inlet of the air inlet pipe (2), an air outlet pipe (3) embedded in the wall, and a filter frame (31) installed at the air outlet of the air outlet pipe (3). The air inlet pipe (2) and the air outlet pipe (3) are both fixed and connected to the ventilation box (1). A first air outlet (10), a second air outlet (11), and a third air outlet (12) are provided from top to bottom on the side of the ventilation box (1) away from the first filter (21). A second filter (101), a third filter (111), and an air outlet mesh plate (121) are respectively installed in the first air outlet (10), the second air outlet (11), and the third air outlet (12). The system is characterized in that: A lower partition (13) is fixed to the inner wall of the ventilation box (1) near the air inlet pipe (2). An upper partition (18) is fixed to the inner wall of the ventilation box (1) near the middle of the air inlet pipe (2). An extension plate (131) extending into the air inlet pipe (2) is fixed to the side wall of the upper partition (18) near the first filter screen (21). An upper filter sterilization assembly (4) is provided between the top of the upper partition (18) and the top of the ventilation box (1). The bottom of the upper partition (18) is connected to the lower partition (13). A lower sterilization component (5) is provided between the top and bottom. An air quality monitor (14) is embedded in the side wall of the air inlet pipe (2) away from the ventilation box (1). A controller (15) is fixed on the side wall of the ventilation box (1). A wind-blocking mechanism (6) controlled by the controller (15) is provided in the air inlet pipe (2). The wind-blocking mechanism (6) is used to allow the high-quality air entering the air inlet pipe (2) to flow into the bottom of the upper partition (18), and the low-quality air entering the air inlet pipe (2) to flow into the top of the upper partition (18). The wind deflector mechanism (6) includes a wind deflector assembly (61) and a drive assembly (62). The wind deflector assembly (61) has an upper baffle (611) fixed to the upper wall of the air inlet pipe (2) near the ventilation box (1), a lower baffle (612) fixed to the lower wall of the air inlet pipe (2) near the ventilation box (1), and a wind deflector plate (613) rotatably connected to the side wall of the air inlet pipe (2). The lower baffle (612) is positioned corresponding to the upper baffle (611). When the wind deflector plate (613) is vertical, the side wall of one side of the wind deflector plate (613) is flush with the side wall of the upper baffle (611) and the side wall of the lower baffle (612). The central axis (19) of the wind deflector plate (613) is at the same height as the middle of the upper partition plate (18). The drive assembly (62) is used to drive the central axis (19) of the wind deflector plate (613) to rotate. The drive assembly (62) is located outside the air inlet pipe (2). The drive assembly (62) includes an L-shaped plate (621) fixed to the outer wall of the ventilation box (1), a motor (622) fixed to the L-shaped plate (621), a drive gear (623) fixedly sleeved on the output shaft of the motor (622), and a driven gear (624) sleeved on the central shaft (19) and meshing with the drive gear (623). The driven gear (624) is fixed to the central shaft (19) through a connecting assembly (16). An intelligent positioning component (7) is provided inside the air inlet pipe (2). The intelligent positioning component (7) includes an upper laser emitter (71) embedded in the inner wall of the upper baffle (611) near the first filter screen (21), an upper mounting plate (72) fixed to the inner top wall of the air inlet pipe (2), an upper laser receiver (73) embedded in the upper mounting plate (72) at the position corresponding to the upper laser emitter (71), a lower laser emitter (74) embedded in the inner wall of the lower baffle (612) near the first filter screen (21), a lower mounting plate (75) fixed to the inner bottom wall of the air inlet pipe (2), and a lower laser receiver (76) embedded in the lower mounting plate (75) at the position corresponding to the lower laser emitter (74). Vertical grooves (22) are provided on the inner walls of both sides of the air inlet pipe (2) near the first filter screen (21). A cleaning mechanism (8) for cleaning the first filter screen (21) is provided inside the air inlet pipe (2). The cleaning mechanism (8) includes a cleaning component (81) and a transmission component (82). The cleaning component (81) includes a cleaning brush (811) that is slidably connected to the vertical groove (22), a U-shaped guide rail (812) that is fixed to the inner wall of the air inlet pipe (2) and slidably connected to the handle of the cleaning brush (811), and a brush of the cleaning brush (811). The first spring (813) is fixed to the bottom of the handle. The bristles of the cleaning brush (811) are pressed against the surface of the first filter screen (21) near the ventilation box (1). The transmission component (82) and the drive component (62) share a drive component and are used to drive the cleaning brush (811) to move vertically. The U-shaped guide rail (812) passes through the bottom wall of the air inlet pipe (2) and is flush with the bottom surface of the air inlet pipe (2). The bottom surface of the handle of the cleaning brush (811) is flush with the bottom wall of the air inlet pipe (2). The lower end of the first spring (813) is fixed to the U-shaped part of the U-shaped guide rail (812). The top of the air inlet pipe (2) is provided with a horizontal slide groove (23) that communicates with the vertical slide groove (22). The inner wall of the air inlet pipe (2) near the baffle plate (613) is provided with a mounting groove (24) that communicates with the horizontal slide groove (23). The central shaft (19) and the output shaft of the motor (622) both pass through the side wall of the air inlet pipe (2) and are rotatably connected. The output shaft of the motor (622) and the central shaft (19) both pass through the mounting groove (24). The transmission assembly (82) includes a cleaning brush (81) 1) The top of the brush handle is fixed with a traction rope (821), a first fixed pulley (822) rotatably connected to the top of the vertical slide groove (22), a second fixed pulley (823) rotatably connected to the top of the mounting groove (24), and a winding roller (824) fixedly sleeved on the output shaft of the motor (622) and located in the mounting groove (24). The traction rope (821) passes around the first fixed pulley (822) and the second fixed pulley (823) in sequence and is wound and fixed on the winding roller (824).

2. A smart fresh air control system according to claim 1, characterized in that: The connecting assembly (16) includes a square rod (161) fixed at one end to the central shaft (19) outside the air inlet pipe (2), a fixing plate (162) fixed at the end of the square rod (161) away from the square rod (161), and a second spring (163) sleeved on the square rod (161); the square rod (161) passes through the driven gear (624) and is slidably connected to the driven gear (624), the fixing plate (162) abuts against the side wall of the driven gear (624) away from the air inlet pipe (2), and the two ends of the second spring (163) abut against the outer wall of the air inlet pipe (2) and the driven gear (624) respectively.

3. A smart fresh air control system according to claim 2, characterized in that: A protective cover (17) is fixed on the surface of the ventilation box (1) near the first filter screen (21). An adjustment component (9) for driving the driven gear (624) to separate from the driving gear (623) is provided inside the protective cover (17). The adjustment component (9) includes a cylinder (91) fixed to the inner wall of the protective cover (17), a U-shaped rod (92) fixed to the end of the output rod of the cylinder (91), and a ball (93) embedded in the end of the U-shaped rod (92) near the air inlet pipe (2). An annular groove (6241) for the ball (93) to roll and connect is provided on the side wall of the driven gear (624) away from the air inlet pipe (2). A transparent and openable side door (171) is provided on the protective cover (17).

4. A smart fresh air control system according to claim 3, characterized in that: The upper filtration sterilization assembly (4) includes a fine filter screen (41) disposed between the upper partition (18) and the inner top wall of the ventilation box (1), an activated carbon filter screen (42) disposed between the upper partition (18) and the inner top wall of the ventilation box (1), and a plurality of upper ultraviolet germicidal lamps (43) fixed between the upper partition (18) and the inner top wall of the ventilation box (1); the lower sterilization assembly (5) includes a plurality of parallel lower ultraviolet germicidal lamps (51).

Images