Fresh air purification air conditioner and integrated construction and installation method thereof

Abstract

The application discloses a fresh air purification air conditioner and relates to the technical field of fresh air air conditioners. The fresh air purification air conditioner comprises a return air pipe, the end of the return air pipe is provided with an air inlet pipe, the air inlet pipe is symmetrically provided with a primary filter assembly on both sides, and the middle of the air inlet pipe is provided with a secondary filter assembly. The application solves the problems that the current fresh air system and air conditioning system are separately installed and used, resulting in high construction difficulty, increased labor and material costs, low construction efficiency and crowded indoor space. The application also solves the problems that the internal filter assembly of the existing part of the fresh air purification air conditioner is blocked during use, especially after long-time use, the air purification effect is reduced, the existing part of the fresh air purification air conditioner has the function of clearing the blockage, but the dust and impurities cleaned cannot be timely discharged, the dust and impurities still cause the blockage of the filter assembly, and even the dust and impurities are discharged into the indoor space, affecting the indoor air quality.

Description

Technical Field

[0001] This invention relates to the field of fresh air conditioning technology, and in particular to a fresh air purification air conditioner and its integrated construction and installation method. Background Technology

[0002] With the advancement of the times, people have increasingly higher requirements for indoor temperature and air quality, leading to the emergence of air conditioning systems and fresh air systems.

[0003] Patent application number 2017105820208 discloses a residential fresh air purification air conditioning system, including a fresh air purification air conditioning unit, a circulating water circuit, and an outdoor unit. The fresh air purification air conditioning unit includes a pipe section with a fresh air inlet and a return air inlet. The fresh air supplied by the fresh air inlet and the return air supplied by the return air inlet are mixed in a mixing section, filtered by a coarse filter, and then enter a surface heat exchanger to exchange heat and dehumidify with chilled or cooling water. The air treated by the surface heat exchanger is driven by a blower to enter a high-efficiency filter for further filtration, and then delivered into the room through the air outlet. The outdoor unit includes a compressor, which is connected to an air-cooled heat exchanger, a water-cooled heat exchanger, a gas-liquid separator, etc., through a four-way reversing valve. The chilled water / cooling water inlet of the surface heat exchanger is connected to the hot water outlet of the water-cooled heat exchanger, and the chilled water / cooling water outlet of the surface heat exchanger is connected to the hot water inlet of the water-cooled heat exchanger, forming a circulating water circuit. This invention enables the regulation of the indoor environment during winter, summer, and transitional seasons, simulating a comfortable and healthy natural environment. However, the current fresh air system and air conditioning system are installed and used separately, which not only increases the difficulty of construction, labor and material costs, but also has low construction efficiency and hinders the construction of other trades. Furthermore, the separate installation of the air conditioning system and fresh air system also greatly reduces the utilization rate of available space, resulting in crowded indoor spaces.

[0004] Furthermore, some existing fresh air purification air conditioners experience clogging of their internal filter components during use, especially after prolonged use, reducing their air purification effect. Although some existing fresh air purification air conditioners have a clogging-clearing function, the cleaned dust and impurities cannot be discharged in time. These dust and impurities will still cause clogging of the filter components and may even be discharged into the room, affecting indoor air quality.

[0005] Therefore, it is necessary to invent a new air purification air conditioner and its integrated construction and installation method to solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to provide a fresh air purification air conditioner and its integrated construction and installation method to solve the problems mentioned in the background art.

[0007] To achieve the above objective, the present invention provides the following technical solution: a fresh air purification air conditioner, comprising an air return pipe, an air inlet pipe is arranged at the end of the air return pipe, primary filter assemblies are symmetrically arranged on both sides of the air inlet pipe, a secondary filter assembly is arranged in the middle of the air inlet pipe, air inlet assemblies are symmetrically arranged at both ends of the air inlet pipe, a filter screen is arranged on the primary filter assembly, and a filter is arranged on the secondary filter assembly;

[0008] A first through slot is penetratingly opened in the middle of the bottom surface of the air inlet pipe, second through slots are penetratingly opened on both sides of the bottom surface of the air inlet pipe, and mounting frames are arranged at both ends of the air inlet pipe;

[0009] The primary filter assembly comprises a first mounting plate arranged in the second through slot, a partition plate is arranged at the top of the first mounting plate, the filter screen is embedded in the vertical side surface of the partition plate, guide slots are correspondingly opened on the upper and lower sides inside the partition plate, a sliding seat is slidably connected in the guide slot, the top of the sliding seat is fixedly connected with the bottom of a vertical plate on one side of the partition plate, a guide rod penetrating through the sliding seat is arranged in the middle of the inner side of the guide slot, and a spring is sleeved on the guide rod at a position between the sliding seat and the end of the guide slot;

[0010] The secondary filter assembly comprises a second mounting plate arranged in the first through slot, a mounting frame is penetratingly arranged on the bottom surface of the second mounting plate, a first air pressure sensor is arranged in the middle of the side surface of the mounting frame, and a second air pressure sensor is arranged on both sides of the top of the mounting frame;

[0011] The air inlet assembly comprises a fixed frame arranged inside the mounting frame, a plurality of movable plates are rotatably connected in the fixed frame at equal intervals, and the bottom end of the movable plate is hinged with a flow guide plate.

[0012] Preferably, an alarm is arranged at the bottom of the second mounting plate, and the top of the alarm is fixedly connected with the bottom of the mounting frame.

[0013] Preferably, a fixing frame is arranged at the top of the second mounting plate, air guide slots are correspondingly penetratingly opened in the middle of both ends of the fixing frame, a plurality of air guide hoods are embedded on both sides of the fixing frame, and the cross section of the air guide hood is an isosceles trapezoid structure.

[0014] Preferably, square slots are penetratingly opened on the upper and lower sides of the air guide hood, a mounting groove is arranged at the notch of the square slot, and the filter is arranged inside the mounting groove.

[0015] Preferably, the partition plate is arranged in a "匚"-shaped structure, the filter screen is a nylon filter screen, the filter is a HEPA high-efficiency filter, a positioning frame is arranged outside the filter, and the positioning frame is arranged inside the mounting groove.

[0016] Preferably, the mounting bracket is configured as a "V"-shaped structure, the first air pressure sensor is embedded between the wind guide covers on both sides, and the two second air pressure sensors are respectively embedded inside the two wind guide covers.

[0017] Preferably, the cross section of the flow guide plate is configured as a left-slanting slash-shaped structure, and a plurality of through holes are provided through the bottom end of the outer side wall of the flow guide plate.

[0018] Preferably, a groove is provided on the rear side surface of the fixed frame, rotating rods penetrating through the side surface of the groove are provided at the middle parts of both ends of the movable plate, a synchronous pulley is provided at one end of each rotating rod located in the groove, and a plurality of said synchronous pulleys are in driving connection with each other via a synchronous belt.

[0019] Preferably, a worm gear is provided at one end of said rotating rod located at the bottom end, a worm is rotatably connected to the inner side of the groove via a rotating shaft, and said rotating shaft penetrates through the side surface of the groove and is fixedly connected to the output shaft of an external driving motor.

[0020] An integrated construction and installation method for a fresh air purification air conditioner, said installation method being used for installing said fresh air purification air conditioner, comprising the following steps:

[0021] Step 1, Indoor unit installation: install the indoor unit of the fresh air air conditioner at a specified position, and adjust the installation angle of the indoor unit according to the installation requirements of the return air duct;

[0022] Step 2, Wall hole drilling: according to the installation position of said return air duct, drill a wall hole for return air inlet installation on the building;

[0023] Step 3, Assembly: install said return air duct on the air inlet assembly of the indoor unit, and install one end of the air inlet duct in the wall hole, so that one end of said return air duct draws outdoor air, and the other end of the air inlet duct draws indoor air;

[0024] Step 4, Filter assembly installation: install said primary filter assembly and secondary filter assembly in the return air duct respectively;

[0025] Step 5, Sensor installation: install said first air pressure sensor and second air pressure sensor at corresponding positions of said mounting bracket, and ensure that said first air pressure sensor is located between the wind guide covers on both sides, and the two said second air pressure sensors are respectively located in said wind guide covers on both sides;

[0026] Step 6, Power-on debugging: connect each component to the control circuit, detect the operating status of each component, and then complete the installation of the device.

[0027] Compared with the prior art, the present invention has the following technical effects:

[0028] 1. By setting a first air pressure sensor and a second air pressure sensor, the present invention can detect the clogging of the filter in the secondary filtration component, so as to facilitate the cleaning and replacement of the filter according to the actual situation.

[0029] 2. When the filter screen becomes clogged, the present invention uses undulating airflow to vibrate the filter screen in the horizontal direction, thereby removing dust and impurities from the side of the filter screen and clearing the blockage. If the blockage is not completely cleared, the machine is stopped and the guide plate at the bottom of the rotating movable plate impacts the side of the filter screen, thereby clearing the blockage again. At the same time, the impact between the slide and the end face of the guide groove causes the filter screen to vibrate again, achieving complete clearing of the blockage.

[0030] 3. This invention can drive the movable plate to rotate rapidly by starting the drive motor on one side, and adjust the movable plate on the other side to a horizontal state, thereby generating airflow to discharge the dust and impurities left in the air inlet pipe from the side of the movable plate in the horizontal state, thus preventing the cleaned dust and impurities from clogging the filter screen again or entering the room. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0032] Figure 2 This is a schematic diagram of the return air duct structure of the present invention.

[0033] Figure 3 This is a schematic diagram of the air inlet duct structure of the present invention.

[0034] Figure 4 This is a schematic diagram of the secondary filtration component of the present invention.

[0035] Figure 5 This is a schematic diagram showing the positional relationship between the first and second pressure sensors of the present invention.

[0036] Figure 6 This is a schematic diagram of the structure of the primary filter component of the present invention.

[0037] Figure 7 This is a schematic diagram of the air intake assembly structure of the present invention.

[0038] Figure 8 This is a schematic diagram of the movable plate structure of the present invention.

[0039] Figure 9 This is a cross-sectional view of the fixed frame structure of the present invention.

[0040] Figure 10 For the present invention Figure 6 Enlarged structural diagram at point A in the middle.

[0041] Figure 11 For the present invention Figure 9 Enlarged structural diagram at point B.

[0042] In the diagram: 1. Return air duct; 2. Primary filter assembly; 3. Secondary filter assembly; 4. Air inlet assembly; 101. Air inlet duct; 102. First through-slot; 103. Second through-slot; 104. Mounting frame; 201. First mounting plate; 202. Partition plate; 203. Filter screen; 204. Guide channel; 205. Slide; 206. Guide rod; 207. Spring; 301. Second mounting plate; 302. Fixing bracket; 303. Air guide channel; 304. Air guide shroud; 305. Square slot; 306. Mounting slot; 307. Filter; 308. Positioning frame; 309. Alarm; 310. Mounting bracket; 311. First air pressure sensor; 312. Second air pressure sensor; 401. Fixed frame; 402. Movable plate; 403. Air guide plate; 404. Through hole; 405. Groove; 406. Rotating rod; 407. Synchronous belt; 408. Worm gear; 409. Worm. Detailed Implementation

[0043] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0044] First Embodiment

[0045] This invention provides, for example Figure 1-9 The air purifier shown includes a return air duct 1, an air inlet duct 101 at the end of the return air duct 1, primary filter components 2 symmetrically arranged on both sides of the air inlet duct 101, a secondary filter component 3 arranged in the middle of the air inlet duct 101, and air inlet components 4 symmetrically arranged at both ends of the air inlet duct 101. The primary filter component 2 is provided with a filter screen 203, and the secondary filter component 3 is provided with a filter 307.

[0046] The bottom surface of the air inlet duct 101 is provided with a first through groove 102 through the middle, and the bottom surface of the air inlet duct 101 is provided with a second through groove 103 through both sides. Both ends of the air inlet duct 101 are provided with mounting frames 104.

[0047] The primary filter assembly 2 comprises a first mounting plate 201 arranged in the second through groove 103, a partition plate 202 is arranged at the top of the first mounting plate 201, a filter screen 203 is embedded on the vertical side of the partition plate 202, the partition plate 202 is configured as a "匚"-shaped structure, and the filter screen 203 is a nylon filter screen. Specifically, the filter screen 203 in the primary filter assembly 2 can filter air entering from the indoor and outdoor environment. By adopting a nylon filter screen as the filter screen 203, the filter screen has good acid resistance, alkali resistance and corrosion resistance, low resistance and can be cleaned repeatedly.

[0048] The secondary filter assembly 3 comprises a second mounting plate 301 arranged in the first through groove 102, a fixing frame 302 is arranged at the top of the second mounting plate 301, an air guide groove 303 is correspondingly provided through the middle of two ends of the fixing frame 302, a plurality of air guide hoods 304 are embedded on both sides of the fixing frame 302 respectively, the cross section of each air guide hood 304 is of an isosceles trapezoid structure, square grooves 305 are provided through the upper and lower sides of each air guide hood 304, a mounting groove 306 is arranged at the notch of the square groove 305, a filter 307 is arranged inside the mounting groove 306, the filter 307 is a HEPA high-efficiency filter, a positioning frame 308 is arranged outside the filter 307, and the positioning frame 308 is arranged inside the mounting groove 306. Specifically, the secondary filter assembly 3 can realize the secondary filtration treatment of the gas entering the air inlet pipe 101. By adopting a HEPA high-efficiency filter as the filter 307, the entering air can be further filtered, finer harmful substances contained in the air can be filtered out, and the filtering effect is improved.

[0049] A mounting frame 310 is arranged through the bottom surface of the second mounting plate 301, a first air pressure sensor 311 is arranged in the middle of the side surface of the mounting frame 310, a second air pressure sensor 312 is arranged on both sides of the top of the mounting frame 310 respectively, the mounting frame 310 is configured as a "V"-shaped structure, the first air pressure sensor 311 is embedded between the air guide hoods 304 on both sides, the two second air pressure sensors 312 are embedded inside the two air guide hoods 304 respectively, an alarm 309 is arranged at the bottom of the second mounting plate 301, and the top of the alarm 309 is fixedly connected with the bottom of the mounting frame 310. Specifically, when the filter 307 on one side is blocked, the air pressure on both sides of the air guide hood 304 on that side changes. After comparing and analyzing the detection data of the first air pressure sensor 311 and one of the second air pressure sensors 312, it can be actively determined whether the filters 307 on both sides are blocked. If blockage occurs, the alarm light on the alarm 309 is turned on, and the user can replace the filter 307 at this time.

[0050] The air intake assembly 4 comprises a fixed frame 401 arranged inside an installation frame 104, a plurality of movable plates 402 are rotatably connected inside the fixed frame 401 at equal intervals, the bottom end of the movable plate 402 is hinged with a deflector 403, a groove 405 is formed on the rear side surface of the fixed frame 401, rotating rods 406 penetrating through the side surface of the groove 405 are arranged at the middle parts of both ends of the movable plate 402, one end of each rotating rod 406 located in the groove 405 is provided with a synchronous wheel, and the plurality of synchronous wheels are in transmission connection through a synchronous belt 407, one end of the rotating rod 406 located at the bottom end is provided with a worm gear 408, the inner side of the groove 405 is rotatably connected with a worm 409 through a rotary rod, the rotary rod penetrates through the side surface of the groove 405 and is fixedly connected with an output shaft of an external drive motor, the cross section of the deflector 403 is arranged in a " / " shaped structure, and a plurality of through holes 404 are penetratingly formed at the bottom end of the outer side wall of the deflector 403. Specifically, an external drive motor is used to drive the rotary rod to rotate, thereby driving the worm 409 to rotate. Through meshing with the worm gear 408, the worm 409 can realize the rotation of the rotating rod 406 at the bottom end, thereby realizing the rotation of each movable plate 402 through the synchronous belt 407 and adjusting the angle of the movable plate 402.

[0051] When the device of the present embodiment is in use, the indoor air conditioner unit extracts air through an air return pipe 1, two ends of an air inlet pipe 101 respectively extract outdoor air and indoor air, the indoor air and the outdoor air sequentially pass through a primary filter assembly 2 and a secondary filter assembly 3 to enter the air return pipe 1, and then enter the indoor air conditioner unit through the air return pipe 1. At this time, outdoor air can enter the room, and indoor air can be circulated, so that a fresh air effect can be achieved without installing a fresh air system.

[0052] When air passes through the air intake assembly 4, the air flows into the air return pipe 1 along the surface of the movable plates 402. The rotary rod is driven to rotate by an external drive motor, so that the worm 409 can be rotated, and the worm 409 drives the worm gear 408 to rotate. The worm gear 408 can drive the rotating rods 406 to rotate, the plurality of rotating rods 406 are in transmission connection through the synchronous belt 407, so the plurality of rotating rods 406 rotate synchronously, and the rotating rods 406 drive the movable plates 402 to rotate, so that the angles of the movable plates 402 are adjusted. When the angles of the movable plates 402 are adjusted, the deflector 403 is always perpendicular to the ground under the action of gravity, and the flow guiding effect of the deflector 403 will not be affected by the adjustment of the movable plates 402.

[0053] When air passes through the primary filter assembly 2, a filter screen 203 in the primary filter assembly 2 is used to filter the air entering from indoor and outdoor. The filter screen 203 is a nylon filter screen, which has good acid resistance, alkali resistance and corrosion resistance, low resistance and can be cleaned repeatedly;

[0054] When air passes through the secondary filter assembly 3, it passes through filter 307. Since filter 307 uses a HEPA high-efficiency filter, it can further filter the incoming air, removing finer harmful substances. The filtered air enters the return air duct 1 through the air guide duct 303, thereby achieving air extraction. When one of the filters 307 becomes blocked, the air pressure on both sides of the air guide shroud 304 on that side changes. At this time, the detection data of the first air pressure sensor 311 and one of the second air pressure sensors 312 are compared. The air pressure values ​​detected by the second air pressure sensors 312 on both sides are compared with the air pressure value detected by the first air pressure sensor 311 in the middle. If the absolute value of one of the two differences is greater than the set first threshold, it is determined that the filter 307 corresponding to that difference is blocked. At this time, the alarm light on the alarm 309 will light up, and the user can replace the filter 307.

[0055] Second Embodiment

[0056] Reference Figure 10-11 Based on the fresh air purification air conditioner provided in the first embodiment, in actual use, especially after long-term use, a lot of dust and impurities will accumulate on the side of the filter screen 203 near the air inlet component 4, which can easily lead to blockage of the filter holes on the filter screen 203, thereby affecting the entry of indoor and outdoor air into the air inlet pipe 101 and affecting the normal operation of the air conditioner. In order to solve the above problems:

[0057] The partition 202 has guide grooves 204 on its upper and lower sides. A slide block 205 is slidably connected in the guide groove 204. The top of the slide block 205 is fixedly connected to the bottom of the vertical plate on one side of the partition 202. A guide rod 206 is provided in the middle of the inner side of the guide groove 204, passing through the slide block 205. A spring 207 is sleeved on the guide rod 206 at the position between the slide block 205 and the end of the guide groove 204. Specifically, the sliding cooperation between the slide block 205 and the guide groove 204 can realize the movement of the filter screen 203, providing conditions for the vibration of the filter screen 203.

[0058] In this embodiment, during normal operation of the fresh air purification air conditioner, indoor and outdoor air enter from both ends of the air inlet duct 101. Because the slide block 205 is slidably connected within the guide groove 204, and the filter screen 203 increases airflow resistance, the air entering the air inlet duct 101 pushes the filter screen 203 to slide away from the movable plate 402. Simultaneously, the bottom slide block 205 slides along the guide groove 204, compressing the spring 207. When the filter holes on one side of the filter screen 203 become blocked, the airflow through that side decreases, leading to an increase in airflow on the other side. This results in a decrease in gas pressure at the air guide shroud 304 on the blocked side, while the gas pressure at the unblocked air guide shroud 304 on the other side increases. When the second air pressure sensors 3 on both sides... When the absolute value of the difference between the detected air pressure values ​​is less than the set second threshold, and no blockage is detected in the filters 307 on both sides, it can be actively determined that the filter screen 203 on one side is blocked. At this time, the forward and reverse rotation of the external drive motor drives the rotating rod to rotate, thereby driving the worm gear 409 to rotate, thereby realizing the synchronous reciprocating swing of each movable plate 402. During the synchronous reciprocating swing of each movable plate 402, the opening and closing degree of the movable plate 402 changes accordingly, thereby realizing the fluctuation of air pressure passing through the movable plate 402. By utilizing the sliding connection of the slide 205 in the guide groove 204, the filter screen 203 can be made to slide slightly back and forth under the action of the spring 207, thereby realizing the vibration of the filter screen 203 in the horizontal direction, which can shake off the dust and impurities attached to the side of the filter screen 203.

[0059] It should be noted that as the movable plate 402 rotates clockwise from a vertical position within the range of 0°-180°, the opening angle of the movable plate 402 gradually increases from 0°. When the movable plate 402 rotates 90° to reach the horizontal position, the air intake reaches its maximum. Continuing to rotate clockwise will cause the air intake to gradually decrease. Therefore, in order to ensure sufficient vibration amplitude of the filter screen 203, the movable plate 402 should be made to swing back and forth within the range of 0°-90° to ensure the cleaning effect on the filter screen 203.

[0060] Furthermore, after cleaning the filter 203, if no blockage is detected in the filters 307 on both sides, and the absolute value of the difference between the air pressure values ​​detected by the second air pressure sensors 312 on both sides is still less than the set second threshold, the operation of the equipment is stopped, no more air enters the air inlet pipe 101, the spring 207 resets and drives the slide 205 to slide, thereby resetting the filter 203. After the filter 203 is fully reset, the distance between the filter 203 and the movable plate 402 is the closest. At this time, the external drive motor drives the worm gear 409 to rotate through the rotary rod, thereby realizing the synchronous rotation of each movable plate 402. During the rotation of the movable plate 402, the guide plate 403 hinged at the bottom of the movable plate 402 unfolds under the action of centrifugal force, and at this time the distance between the filter 203 and the movable plate 402 is the closest. Therefore, during the rotation of the movable plate 402, the guide plate 403 can be used to impact the filter 203, thereby cleaning the filter 203.

[0061] It is worth noting that during the process of the guide plate 403 impacting the filter screen 203, the filter screen 203 is pushed to the side away from the movable plate 402. At this time, the spring 207 is compressed. When the guide plate 403 is separated from the filter screen 203, the spring 207 returns to its original position, and at the same time, the slide 205 impacts the end face of the guide groove 204. This cyclic action can realize the secondary vibration of the filter screen 203, thereby achieving further cleaning of the filter screen 203 and improving the dust and impurity removal effect of the filter screen 203.

[0062] However, after cleaning the filter 203, dust and impurities that fall off from the side of the filter 203 will remain in the air inlet duct 101. These dust and impurities can easily enter the room with the airflow and can easily cause the filter 203 to become clogged again.

[0063] Therefore, after cleaning the filter 203, an external drive motor is used to rotate the movable plate 402, rotating one side of the movable plate 402 to a horizontal position. At the same time, the external drive motor on the other side drives the other side of the movable plate 402 to rotate rapidly. At this time, the rotating movable plate 402 can act as a fan blade to ventilate the air inlet duct 101. At this time, the movable plate 402 on the other side, which is in a horizontal state, is in a state of maximum airflow. The flowing airflow can be used to discharge the dust and impurities left on the bottom surface of the air inlet duct 101, thereby preventing the cleaned dust and impurities from clogging the filter 203 again or entering the room.

[0064] Therefore, when the filter screen 203 becomes clogged, the present invention can use fluctuating airflow to vibrate the filter screen 203 in the horizontal direction, thereby removing dust and impurities from the side of the filter screen 203 and clearing the blockage. In addition, if the blockage is not completely cleared, the machine is stopped and the guide plate 403 at the bottom of the rotating movable plate 402 is used to impact the side of the filter screen 203, thereby clearing the blockage of the filter screen 203 again. At the same time, the impact between the slide 205 and the end face of the guide groove 204 is used to vibrate the filter screen 203 again, thereby completely clearing the blockage of the filter screen 203. Furthermore, the dust and impurities removed can be driven by starting the drive motor on one side to drive the movable plate 402 to rotate quickly and adjust the movable plate 402 on the other side to a horizontal state, thereby generating airflow and discharging the dust and impurities remaining in the air inlet pipe 101 from the side of the movable plate 402 in a horizontal state, thereby preventing the cleaned dust and impurities from clogging the filter screen 203 again or entering the room.

[0065] Third Embodiment

[0066] This invention also provides an integrated construction and installation method for a fresh air purification air conditioner. The installation method is used to install the fresh air purification air conditioner and includes the following steps:

[0067] Step 1: Indoor unit installation. Install the indoor unit of the fresh air conditioner in the designated location and adjust the installation angle of the indoor unit according to the installation requirements of return air duct 1.

[0068] Step 2: Create a wall opening. Based on the installation location of return air duct 1, create a wall opening in the building for the return air vent.

[0069] Step 3: Assembly. Install the return air duct 1 at the air inlet of the indoor unit, and install one end of the air inlet duct 101 inside the wall hole to ensure that one end of the return air duct 1 draws in outdoor air and the other end of the air inlet duct 101 draws in indoor air.

[0070] Step 4: Install the filter components. Install the primary filter component 2 and the secondary filter component 3 into the return air duct 1, respectively.

[0071] Step 5: Sensor installation. Install the first air pressure sensor 311 and the second air pressure sensor 312 in the corresponding positions of the mounting bracket 310, and ensure that the first air pressure sensor 311 is located between the air guide shrouds 304 on both sides, and the two second air pressure sensors 312 are located inside the air guide shrouds 304 on both sides respectively.

[0072] The air pressure values ​​detected by the second air pressure sensors 312 on both sides are compared with the air pressure value detected by the first air pressure sensor 311 located in the middle. If the absolute value of one of the two differences is greater than a set first threshold, it is automatically determined that the filter 307 corresponding to that difference is blocked.

[0073] Furthermore, when the absolute value of the difference between the air pressure values ​​detected by the second air pressure sensors 312 on both sides is less than the set second threshold, and when no blockage is detected in the filters 307 on both sides, it can be actively determined that the filter screen 203 on one side is blocked.

[0074] Step 6: Power on and debug. Connect each component to the control circuit and check the operating status of each component to complete the installation of the device.

[0075] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A fresh air purification air conditioner, characterized in that, It comprises an air return pipe, an air inlet pipe is arranged at an end of the air return pipe, primary filter assemblies are symmetrically arranged on two sides of the air inlet pipe, a secondary filter assembly is arranged in a middle portion of the air inlet pipe, air inlet assemblies are symmetrically arranged at two ends of the air inlet pipe, a filter mesh is arranged on the primary filter assembly, and a filter is arranged on the secondary filter assembly; a first through groove is penetratingly opened in a middle portion of a bottom surface of the air inlet pipe, second through grooves are penetratingly opened on both sides of the bottom surface of the air inlet pipe, and mounting frames are arranged at both ends of the air inlet pipe; the primary filter assembly comprises a first mounting plate arranged in the second through groove, a partition plate is arranged at a top of the first mounting plate, the filter mesh is embedded in a vertical side surface of the partition plate, guide grooves are correspondingly opened at upper and lower sides inside the partition plate, sliding seats are slidably connected in the guide grooves, tops of the sliding seats are fixedly connected with a bottom of a vertical plate on one side of the partition plate, a guide rod penetrating through the sliding seat is arranged in a middle portion of an inner side of the guide groove, and a spring is sleeved on the guide rod at a position between the sliding seat and an end of the guide groove; the secondary filter assembly comprises a second mounting plate arranged in the first through groove, a mounting bracket is penetratingly arranged on a bottom surface of the second mounting plate, a first air pressure sensor is arranged in a middle portion of a side surface of the mounting bracket, a second air pressure sensor is respectively arranged on both sides of a top of the mounting bracket, an alarm is arranged at a bottom of the second mounting plate, and a top of the alarm is fixedly connected with a bottom of the mounting bracket; the air inlet assembly comprises a fixed frame arranged inside the mounting frame, a plurality of movable plates are rotatably connected inside the fixed frame at equal intervals, and a bottom end of the movable plate is hinged with a flow guide plate; a fixed bracket is arranged at a top of the second mounting plate, and a plurality of air guide hoods are embedded on both sides of the fixed bracket; when the filter on one side is blocked, the air pressure on both sides of the air guide hood located on said side changes, after the detection data of the first air pressure sensor and one of the second air pressure sensors is compared, a difference operation is performed between the air pressure values detected by the two second air pressure sensors on both sides and the air pressure value detected by the first air pressure sensor located in the middle respectively, among the two obtained differences, if the absolute value of one difference is greater than a set first threshold, it is actively determined that the filter corresponding to the difference is blocked, and at this time, the alarm light on the alarm is turned on.

2. The fresh air purification air conditioner according to claim 1, characterized in that: air guide grooves are correspondingly penetratingly opened in middle portions of two ends of the fixed bracket respectively, and a cross section of the air guide hood is an isosceles trapezoid structure.

3. The fresh air purification air conditioner according to claim 2, characterized in that: square grooves are penetratingly opened on upper and lower sides of the air guide hood respectively, a mounting groove is arranged at a notch of the square groove, and the filter is arranged inside the mounting groove.

4. A fresh air purification air conditioner according to claim 3, characterized in that: the partition plate is configured as a C-shaped structure, the filter mesh is a nylon filter mesh, the filter is a HEPA high-efficiency filter, a positioning frame is arranged outside the filter, and the positioning frame is arranged inside the mounting groove.

5. A fresh air purification air conditioner according to claim 4, characterized in that: the mounting bracket is configured as a V-shaped structure, the first air pressure sensor is embedded between the two air guide hoods on both sides, and the two second air pressure sensors are embedded inside the two air guide hoods respectively.

6. A fresh air purification air conditioner according to claim 5, characterized in that: a cross section of the flow guide plate is configured as a right-slanting structure, and a plurality of through holes are penetratingly opened at a bottom end of an outer side wall of the flow guide plate.

7. A fresh air purification air conditioner according to claim 1, characterized in that: a groove is opened on a rear side surface of the fixed frame, rotating rods penetrating through a side surface of the groove are respectively arranged in middle portions of two ends of the movable plate, a synchronous wheel is arranged at one end of the rotating rod located in the groove, and the plurality of synchronous wheels are in transmission connection through a synchronous belt.

8. A fresh air purification air conditioner according to claim 7, characterized in that: a worm gear is arranged at one end of the rotating rod located at the bottom, a worm is rotatably connected on an inner side of the groove through a rotating rod, and the rotating rod penetrates through a side surface of the groove and is fixedly connected with an output shaft of an external driving motor.

9. An integrated construction and installation method for a fresh air purification air conditioner, the installation method being used to implement the installation of the fresh air purification air conditioner as described in any one of claims 1-8, characterized in that, comprising: S1. Indoor unit installation: Install the indoor unit of the fresh air conditioner in the designated location and adjust the installation angle of the indoor unit according to the installation requirements of the return air duct. S2. Create a wall opening: Based on the installation location of the return air duct, create a wall opening on the building to install the return air vent. S3. Assembly: Install the return air duct into the air intake assembly of the indoor unit, and install one end of the air intake duct into the wall hole to ensure that one end of the return air duct draws in outdoor air and the other end of the air intake duct draws in indoor air. S4. Install the filter components: Install the primary filter component and the secondary filter component in the return air duct respectively. S5. Sensor installation: Install the first air pressure sensor and the second air pressure sensor in the corresponding positions on the mounting bracket, and ensure that the first air pressure sensor is located between the air guide covers on both sides, and the two second air pressure sensors are located inside the air guide covers on both sides respectively. S6. Power on and debug, connect each component to the control circuit, and check the operating status of each component to complete the installation of the device.

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