A modularly assembled ceiling-mounted indoor unit structure for fresh air humidifiers

Abstract

This invention relates to the technical field of fresh air humidifier units, and discloses a modularly assembled ceiling-mounted fresh air humidifier indoor unit structure, including a fresh air unit, which includes an air intake disinfection component, a filter component, and an exhaust fan component. The air intake disinfection component is equipped with an LED disinfection lamp, and the filter component has a secondary return air duct inside. The LED disinfection lamp disinfects the fresh air inside the filter component and the water in the air intake disinfection component. This invention can add a multi-directional radiation-type collaborative disinfection module to the airflow channel between the filter element and the atomizer, and with an adjustable-angle UV-C LED array, achieve dual-function disinfection of direct water injection and airflow radiation, eliminating the disinfection blind spot between the filter element and the atomizer, and realizing integrated collaborative disinfection of humidification water, filter element, atomizer, and intermediate air duct without dead angles, blocking the path of bacterial growth and transmission from the source, and completely avoiding the risk of secondary pollution of the supply air.

Description

Technical Field

[0001] This invention belongs to the technical field of fresh air humidification units, and more specifically, it relates to a modularly assembled ceiling-mounted fresh air humidification indoor unit structure. Background Technology

[0002] With increasing public awareness of indoor air quality (IAQ) and growing demand for air disinfection and sterilization under the normalization of the pandemic, traditional ceiling-mounted fresh air humidifier indoor units can no longer meet the market's multiple requirements for efficient disinfection, stable humidification, convenient operation and maintenance, and low energy consumption. Their technical shortcomings are gradually becoming apparent, specifically in the following aspects: In terms of disinfection and sterilization technology, existing ceiling-mounted fresh air humidifiers often suffer from simplistic design and incomplete coverage in their disinfection systems. Some devices only have simple ultraviolet disinfection lamps at the fresh air inlet, providing only localized physical disinfection of the incoming fresh air. This fails to disinfect the humidifying water, making it easy for humidified water vapor to carry bacteria, mold, and other microorganisms into the room, causing secondary pollution. Other devices lack dedicated disinfection structures for the filter components, leaving microorganisms attached to the surface and deeper layers of the filter media unremoved. Over time, the filter media becomes a breeding ground for bacteria, releasing pollutants back into the room with the fresh airflow, severely compromising indoor air cleanliness. Furthermore, existing disinfection methods primarily rely on single ultraviolet irradiation, lacking the synergistic effect of chemical disinfection methods such as ozone. This results in limited effectiveness against drug-resistant bacteria, viruses, and other stubborn pollutants, failing to achieve comprehensive, thorough disinfection of air, water, and filter media, and thus failing to meet the high standards of air purification required in modern indoor environments.

[0003] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a modular assembly structure for the indoor unit of the ceiling-mounted fresh air humidifier, in order to achieve a more practical and valuable purpose. Summary of the Invention

[0004] This invention provides a modularly assembled ceiling-mounted fresh air humidifier indoor unit structure to overcome the above-mentioned defects in the prior art.

[0005] The purpose and effectiveness of the modularly assembled ceiling-mounted fresh air humidifier indoor unit structure of this invention are achieved by the following specific technical means: A modularly assembled ceiling-mounted fresh air humidifier indoor unit structure includes a fresh air unit, which is equipped with an air intake disinfection component, a filter component, and an exhaust fan component. The air intake disinfection unit is equipped with an LED disinfection lamp, and the filter unit has a secondary return air duct. The LED disinfection lamp disinfects the fresh air inside the filter unit and the water in the air intake disinfection unit. Then the ozone generated by the disinfection enters the secondary return air duct again for disinfection. The air intake disinfection component also includes an atomizing component, where the disinfected gas enters the atomizing component to be sprayed outwards in an atomized manner.

[0006] A further technical solution includes a fresh air unit comprising a casing, a bottom cover plate fixedly installed at the bottom of the casing, an upper cover plate fixedly installed at the top of the casing, and three internal cavities: an exhaust cavity, a stabilizing cavity, and an air inlet cavity, with a water inlet pipe fixedly connected to the outside.

[0007] A further technical solution is provided with an air outlet and an air inlet at the front and rear ends of the chassis, respectively. An exhaust fan assembly is fixedly installed inside the exhaust chamber, an air inlet disinfection assembly is fixedly installed inside the stabilizing air chamber, and a filter assembly is fixedly installed inside the air inlet chamber. The air outlet is located on one side of the exhaust chamber, and the air inlet is located on one side of the air inlet chamber.

[0008] A further technical solution includes a filter assembly comprising two sets of side-mounted fixing components, with an inner core filter material and an inlet filter material fixedly installed between the two sets of side-mounted fixing components. A secondary return air duct is provided between the inner core filter material and the inlet filter material, and several sets of ventilation holes are provided on the outside of the secondary return air duct.

[0009] A further technical solution is to provide a bottom movable disassembly plate below the filter assembly, and to provide a rectangular hole at the corresponding position of the bottom cover plate, with the bottom movable disassembly plate located at the corresponding position of the rectangular hole, and the bottom movable disassembly plate being locked by bolts.

[0010] A further technical solution includes an air inlet disinfection component comprising a filter duct, one end of which is fixedly connected to an inner core filter material, and the other end of which is fixedly connected to an atomizing component. A water outlet pipe is fixedly installed inside the atomizing component, and the air outlet of the water outlet pipe is connected to the atomizing duct of the atomizing component.

[0011] A further technical solution involves a connecting duct fixedly installed at the air inlet of the water outlet pipe, a return air collection box located on the outside of the connecting duct, an LED disinfection lamp fixedly installed above the return air collection box, an inclined baffle fixedly installed at the upper end of the LED disinfection lamp, and the upper end of the inclined baffle fixedly connected to the filter duct.

[0012] A further technical solution is that the base of the return air collection box is a right-angled trapezoid with a hollow interior. Inside the right-angled trapezoid are two sets of air inlet pipes, and ozone collection devices are installed inside the two sets of air inlet pipes. The outside of the two sets of air inlet pipes is connected to an exhaust pipe, and the exhaust end of the exhaust pipe is connected to the secondary return air pipe.

[0013] A further technical solution involves installing a water filter box below the connecting duct, water outlet pipe, and atomizing component, with a wastewater recovery pipe fixedly connected to the outside of the water filter box.

[0014] A further technical solution involves making the filter duct, connecting duct, and inner filter material with the side closest to the LED disinfection lamp transparent, and using an external rotor centrifugal motor for the exhaust fan assembly.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The present invention discloses a modularly assembled ceiling-mounted fresh air humidifier indoor unit structure. By adding a multi-directional radiation-type collaborative disinfection module to the airflow channel between the filter and the atomizer, and combining it with an adjustable-angle UV-CLED array, it achieves dual-function disinfection of direct water injection and airflow radiation, eliminating the disinfection blind spot between the filter and the atomizer. It realizes integrated and collaborative disinfection of humidification water, filter, atomizer and intermediate air duct without dead angles, blocking the path of bacterial growth and transmission from the source, completely avoiding the risk of secondary pollution of the air supply, and ensuring indoor air quality.

[0016] The present invention discloses a modularly assembled ceiling-mounted fresh air humidifier indoor unit structure. By setting a gradient heat conduction and heat exchange structure on the outside of the disinfection module, the residual heat from disinfection is collected and utilized in stages. The heat is transferred to the water storage chamber of the atomizer and the temperature of the fresh air is regulated. This not only improves the atomization efficiency of the atomizer and inhibits the growth of bacteria in low-temperature water, further consolidating the effect of integrated synergistic disinfection, but also preheats the fresh air in winter and prevents condensation and mold growth on the filter element in summer. It realizes the resource utilization of residual heat from disinfection, improves the energy efficiency of equipment operation and the air delivery experience, and at the same time reduces scaling and microbial colonization on components, extending the service life of the filter element and atomizer.

[0017] This invention discloses a modularly assembled ceiling-mounted fresh air humidifier indoor unit structure that integrates an ozone closed-loop recycling system into a collaborative disinfection module. This constructs a composite disinfection mode of "UV physical disinfection + ozone chemical disinfection," utilizing ozone water for enhanced water disinfection and ozone antibacterial water mist for deep disinfection of the filter element. This compensates for the limited effectiveness of single UV disinfection against drug-resistant bacteria, deeply enhancing the overall effect of integrated collaborative disinfection and waste heat utilization-assisted disinfection. Simultaneously, the ozone decomposes unreacted ozone into oxygen through the ozone decomposition filter, achieving efficient recycling of disinfection resources, eliminating the safety hazards of ozone emissions, and completely solving the problem of deep filter element contamination. This achieves simultaneous improvement in disinfection effect, equipment energy efficiency, and operational safety. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is a schematic diagram of the overall appearance and structure of the present invention; Figure 2 This is a top view of the overall structure of the present invention; Figure 3 This is a schematic diagram of the overall side sectional structure of the present invention; Figure 4 This is a schematic diagram of the overall internal structure of the present invention; Figure 5 This is a top view of the overall internal structure of the present invention; Figure 6 This is a schematic diagram of the overall internal structure of the present invention; Figure 7 This is a schematic diagram of the overall internal structure of the present invention from a side view. Figure 8 This is an exploded structural diagram of the air intake disinfection component and the filter component in this invention; Figure 9 This is a side view of the air intake disinfection component and the filter component in this invention. Figure 10 This is an exploded view of the filter assembly in this invention. Figure 11 This is an exploded view of the air intake disinfection component in this invention. Figure 12 This is a side sectional view of the air intake disinfection component in this invention.

[0021] Explanation of reference numerals in the attached figures: Fresh air handling unit; 11. Casing; 12. Air outlet; 13. Air inlet; 14. Water inlet pipe; 15. Exhaust chamber; 16. Stabilizing air chamber; 17. Air inlet chamber; 18. Bottom cover; 19. Top cover; 21. Air inlet disinfection assembly; 22. Filter duct; 23. Atomizing assembly; 24. Connecting duct; 25. Water filter base box; 26. Water outlet pipe; 27. Return air collection box; 28. LED disinfection lamp; 29. ​​Angled baffle; 20. Exhaust duct; Filter assembly; 31. Side-mounted fixing assembly; 32. Secondary return air duct; 33. Inlet air filter element; 34. Inner filter media; 35. Bottom movable disassembly plate; Exhaust fan assembly. Detailed Implementation

[0022] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0023] In the description of this invention, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention 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, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this invention, 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. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0025] As attached Figure 1 To be continued Figure 12 As shown: This invention provides a modularly assembled ceiling-mounted fresh air humidifier indoor unit structure, including a fresh air unit 1, which is an integrated modular structure. The fresh air unit 1 is precisely equipped with an air intake disinfection component 2, a filter component 3, and an exhaust fan component 4 according to functional zones. Each component is installed independently and works together to realize the whole process of fresh air treatment from filtration and disinfection to humidification and exhaust. The air intake disinfection component 2 is equipped with an LED disinfection lamp 27, and the filter component 3 has a secondary return air duct 32 inside. The LED disinfection lamp 27 is a UV-C type disinfection lamp, which can simultaneously disinfect the fresh air inside the filter component 3 and the humidifying water in the air intake disinfection component 2, effectively killing bacteria, mold and other microorganisms in the air and water. At the same time, the ozone generated by the LED disinfection lamp 27 during the disinfection process is collected by a special collection structure and then enters the secondary return air duct 32 to perform secondary ozone deep disinfection of the filter component 3, forming a dual disinfection mechanism of "physical direct disinfection + chemical ozone disinfection". The air intake disinfection component 2 also includes an atomizing component 22. The clean gas after multiple disinfection will smoothly enter the atomizing component 22, mix with the disinfected humidifying water and then be atomized and sprayed outward to complete the disinfection and humidification of the fresh air.

[0026] Preferred options are shown in the appendix. Figure 1 To be continued Figure 8 The fresh air unit 1 includes a casing 11, which is an integrated sealed structure made of high-strength metal. It is suitable for ceiling installation, compact in size and sturdy in structure. A bottom cover plate 18 is fixedly installed at the bottom of the casing 11 by bolts, and a top cover plate 19 is also fixedly installed at the top of the casing 11 by bolts. The detachable design of the bottom cover plate 18 and the top cover plate 19 facilitates the assembly and maintenance of the inside of the casing 11. The inside of the casing 11 is precisely divided into three independent inner cavities according to function by metal partitions: an exhaust cavity 15, a stabilizing cavity 16, and an air inlet cavity 17. Each inner cavity is sealed and isolated to avoid mutual airflow interference. A water inlet pipe 14 is fixedly connected to the outer side wall of the casing 11. The water inlet pipe 14 is connected to an external clean water source to continuously supply clean water for the atomization and humidification function of the equipment. By dividing the interior of the chassis 11 into three independent cavities, the fresh air filtration, disinfection and humidification, and exhaust air delivery processes can be operated independently in separate zones. This structurally avoids mutual interference between airflows of different functions, significantly improving the overall operational stability of the unit. At the same time, the modular cavity structure provides a basis for the independent installation of each functional component, facilitating modular assembly, debugging, and subsequent maintenance of each component, effectively reducing the production and operation and maintenance costs of the equipment.

[0027] Preferred options are shown in the appendix. Figure 1 To be continued Figure 8The front and rear ends of the casing 11 are respectively fixedly equipped with an air outlet 12 and an air inlet 13. Both the air outlet 12 and the air inlet 13 are equipped with sealing connection flanges to facilitate sealing connection with external fresh air ducts and indoor air supply ducts and prevent air leakage. An exhaust fan assembly 4 is fixedly installed in the center of the exhaust chamber 15. The exhaust fan assembly 4 provides power for the airflow of the unit. An air inlet disinfection assembly 2 is fixedly installed in the stabilizing air chamber 16. The air inlet disinfection assembly 2 is the core disinfection and humidification component of the unit. A filter assembly 3 is fixedly installed in the air inlet chamber 17. The filter assembly 3 provides pre-filtering and fine filtration for fresh air. The air outlet 12 is located on the side of the exhaust chamber 15 away from the stabilizing air chamber 16 to ensure smooth output of exhaust airflow. The air inlet 13 is located on the side of the air inlet chamber 17 away from the stabilizing air chamber 16 to ensure stable entry of fresh airflow. The design features separate air inlets 13 and outlets 12 at the front and rear ends. Combined with the precise matching and installation of each functional cavity and corresponding components, the fresh air flow can smoothly follow the predetermined path of "air intake → filtration → disinfection → humidification → exhaust" without airflow backflow or blockage. At the same time, the setting of the stabilizing air cavity 16 can effectively buffer the airflow pressure, balance the pressure fluctuations during the air supply process, ensure the uniformity and stability of the fresh air output, and improve the indoor fresh air delivery experience.

[0028] Preferred options are shown in the appendix. Figure 8 To be continued Figure 10 The filter assembly 3 includes two sets of symmetrically arranged side-mounted fixing assemblies 31. Both sets of side-mounted fixing assemblies 31 are fixedly connected to the side wall of the air inlet cavity 17 inside the chassis 11, ensuring a firm and stable installation. Between the two sets of side-mounted fixing assemblies 31, an inner core filter material 34 and an air inlet filter element 33 are fixedly installed in sequence according to the fresh air flow direction. The air inlet filter element 33 is a coarse filter element, which can effectively intercept dust, hair, large particulate impurities, etc. in the fresh air. The inner core filter material 34 is a fine filter material, which can further remove pollutants such as PM2.5, fine particulate matter, and harmful aerosols in the fresh air, achieving dual filtration and purification of the fresh air. A secondary return air duct 32 is horizontally arranged in the gap between the inner core filter material 34 and the air inlet filter element 33. The secondary return air duct 32 is a hollow tubular structure, and several sets of ventilation holes are evenly distributed on its outer side wall, providing a channel for ozone blowing. The modular fixing of the inner core filter material 34 and the air inlet filter element 33 is achieved through the side fixing component 31. The assembly process is convenient, efficient and secure, which can effectively prevent the filter material from shifting due to airflow impact during equipment operation. The secondary return air pipe 32 works in conjunction with the evenly distributed vent holes on the outside to allow ozone to be evenly sprayed to all parts of the filter component 3, achieving comprehensive and thorough ozone spraying and disinfection of the filter component. This effectively kills bacteria, mold and other microorganisms attached to the surface and deep layers of the filter material, avoids secondary pollution of the filter material, extends the service life of the filter material, and reduces the frequency of filter material replacement and user maintenance costs.

[0029] Preferred options are shown in the appendix. Figure 8 To be continued Figure 10 A bottom movable disassembly plate 35 is provided on the bottom wall of the casing 11 below the filter assembly 3. A rectangular hole adapted to the bottom movable disassembly plate 35 is opened at the corresponding position of the bottom cover plate 18. The bottom movable disassembly plate 35 is movably installed at the corresponding position of the rectangular hole by bolts. The bottom movable disassembly plate 35 is locked and removed by bolts, making the operation simple and convenient. The exclusive design of the bottom movable disassembly plate 35 enables quick disassembly and maintenance of the filter assembly 3. When it is necessary to replace or clean the inner filter material 34 and the air inlet filter element 33, it is only necessary to remove the fixing bolts of the bottom movable disassembly plate 35, and the filter material can be directly operated through the rectangular hole of the bottom cover plate 18 without disassembling the whole machine and other components, which greatly reduces the later maintenance costs and improves maintenance efficiency. At the same time, the bolt locking structure ensures the sealing of the bottom movable disassembly plate 35 after it is closed, effectively preventing airflow leakage inside the air inlet cavity 17 and ensuring the operating efficiency of the unit.

[0030] Preferred options are shown in the appendix. Figure 8 To be continued Figure 10 The air inlet disinfection component 2 includes a filter duct 21, which is a hollow sealed duct. One end of the filter duct is fixed and sealed to the air outlet side of the inner core filter material 34 to ensure that all the filtered fresh air can enter the filter duct 21. The other end of the filter duct 21 is fixed and sealed to the air inlet end of the atomizing component 22 to achieve stable delivery of disinfected fresh air to the atomizing component 22. A water outlet pipe 25 is fixedly installed inside the atomizing component 22. The water outlet pipe 25 is a flexible sealed water pipe. Its water inlet end is connected to the water inlet pipe 14 on the outside of the casing 11. The air outlet of the water outlet pipe 25 is precisely connected to the atomizing duct of the atomizing component 22 to ensure that the humidifying water can smoothly enter the atomizing component 22 for atomization. The filter duct 21 serves as the delivery channel for fresh air from the filter component 3 to the atomizing component 22, ensuring stable and sealed delivery of disinfected fresh air and preventing contamination during delivery. The precise connection between the water outlet pipe 25 and the atomizing duct of the atomizing component 22 allows for the precise and stable introduction of water disinfected by the LED disinfection lamp 27 into the atomizing component 22, providing a basic guarantee for the efficient atomization of the atomizing component 22 and ensuring the stability and uniformity of the equipment's humidification effect.

[0031] Preferred options are shown in the appendix. Figure 8 To be continued Figure 10A connecting duct 23 is fixedly installed at the air inlet of the water outlet pipe 25. The connecting duct 23 has a hollow structure to enable airflow communication between the water outlet pipe 25 and the filter duct 21. A return air collection box 26 is fixedly installed on the outer wall of the connecting duct 23. The return air collection box 26 is the core structure for ozone collection. An LED disinfection lamp 27 is fixedly installed on the upper surface of the return air collection box 26. The light-emitting end of the LED disinfection lamp 27 faces the filter assembly 3 and the connecting duct 23 to achieve direct disinfection of fresh air and water. An inclined baffle 28 is fixedly installed on the upper end of the LED disinfection lamp 27. The inclined baffle 28 is made of reflective material. Its upper end is fixedly connected to the bottom of the filter duct 21, and its lower end is inclined towards the connecting duct 23. The LED disinfection lamp 27 can simultaneously and directly disinfect the fresh air inside the filter assembly 3 and the humidified water around the connecting duct 23, killing microorganisms at the source. The oblique arrangement of the oblique baffle 28 can effectively divide the disinfection light emitted by the LED disinfection lamp 27 into multiple beams, so that the light can irradiate multiple parts such as the filter assembly 3, the water inside the connecting duct 23, and the inner wall of the filter duct 21, achieving all-round disinfection of the filter assembly, water, and duct without dead angles, greatly improving the disinfection coverage and disinfection effect. The return air collection box 26 can efficiently collect the ozone generated during the disinfection process of the LED disinfection lamp 27, avoid ozone leakage, and provide a sufficient ozone source for the secondary ozone disinfection of the filter assembly 3.

[0032] Preferred options are shown in the appendix. Figure 8 To be continued Figure 12 The base of the return air collection box 26 is a right-angled trapezoidal structure. The design of this right-angled trapezoidal structure fits the internal space layout of the chassis 11, maximizing the use of the internal space of the equipment. The inside of the right-angled trapezoid is a hollow structure, providing a channel for ozone collection and transportation. Two sets of air inlet pipes are symmetrically arranged in the hollow cavity inside the right-angled trapezoid. Both sets of air inlet pipes are equipped with ozone collection devices, which can efficiently adsorb and collect ozone. The outside of the two sets of air inlet pipes are connected to the exhaust pipe 29. The exhaust end of the exhaust pipe 29 is sealed and connected to the air inlet end of the secondary return air pipe 32, ensuring that all the collected ozone can enter the secondary return air pipe 32. The right-angled trapezoidal return air collection box 26 can guide ozone to converge towards the air inlet duct, greatly improving ozone collection efficiency. The hollow internal structure and the ozone collection device work together to efficiently and comprehensively collect the ozone generated during the operation of the LED disinfection lamp 27. The collected ozone is precisely introduced into the secondary return air duct 32 through the exhaust duct 29 to achieve secondary ozone disinfection of the filter component 3, further enhancing the overall sterilization effect of the equipment, while avoiding ozone waste and achieving efficient utilization of ozone resources.

[0033] Preferred options are shown in the appendix. Figure 8 To be continued Figure 12A filter box 24 is installed below the connecting air duct 23, water outlet pipe 25, and atomizing component 22. The filter box 24 is an open-top box structure that can comprehensively collect residual liquid generated during equipment operation. A wastewater recovery pipe is fixedly connected to the outer wall of the filter box 24, which is connected to the external drainage system to achieve timely discharge of collected wastewater. The filter box 24 can comprehensively collect residual wastewater, incompletely atomized water droplets, and impurities in the water generated during disinfection and humidification, preventing wastewater and impurities from stagnating inside the casing 11 and preventing bacterial growth and component corrosion caused by wastewater stagnation. The wastewater recovery pipe can promptly discharge the wastewater and impurities collected by the filter box 24 to the outside of the equipment, ensuring the cleanliness and dryness of the unit's interior and significantly improving the overall safety and reliability of the equipment operation.

[0034] Preferred options are shown in the appendix. Figure 8 To be continued Figure 12 The filter duct 21, connecting duct 23, and inner filter material 34 are all made of high-transmittance transparent material on the side closest to the LED disinfection lamp 27. This ensures that the disinfection light emitted by the LED disinfection lamp 27 can penetrate the material without obstruction and irradiate the area to be disinfected. The exhaust fan assembly 4 uses an external rotor centrifugal motor, which is highly efficient, low-noise, and stable. The high-transmittance transparent material ensures that the disinfection light from the LED disinfection lamp 27 can fully penetrate and irradiate the fresh air, water, and filter material without obstruction, achieving comprehensive and efficient disinfection of all parts and further improving the disinfection effect. The external rotor centrifugal motor used in the exhaust fan assembly 4 can effectively improve the exhaust efficiency and operational stability of the exhaust fan assembly 4, reduce noise during equipment operation, and ensure that the disinfected and humidified fresh air and atomized gas can be discharged efficiently and stably, achieving rapid replacement of indoor fresh air.

[0035] Specific usage of this invention: When using this device, first, seal the air inlet 13 of the device with the outdoor fresh air duct, and precisely connect the air outlet 12 with the indoor air supply duct to ensure that there is no air leakage at any pipe connection. At the same time, connect the water inlet pipe 14 to the external clean water source, and connect the sewage recovery pipe on the outside of the filter box 24 to the drainage system. After completing the sealing connection of all pipes, the device is powered on and starts working. The exhaust fan assembly 4 first runs inside the casing 11 to form a stable negative pressure. Then, the device automatically starts the coordinated working mode of full-process disinfection and sterilization, filtration and purification and atomization humidification to realize the linkage operation of each process of fresh air treatment.

[0036] Once the device is operational, outdoor fresh air enters the air inlet chamber 17 at a uniform speed through the air inlet 13 under the negative pressure of the exhaust fan assembly 4. The independent chamber structure of the air inlet chamber 17 effectively prevents interference between the fresh air and the airflow from other chambers, ensuring the purity of the initial fresh air purification. Subsequently, the air inside the air inlet chamber 17 passes vertically through the filter assembly 3. The air inlet filter element 33 of the filter assembly 3 first performs coarse filtration on the air, efficiently intercepting pollutants such as dust, hair, and large particulate impurities in the air. The pre-purified air then undergoes fine filtration through the inner core filter material 34. The air is thoroughly filtered to remove PM2.5, fine particulate matter, harmful aerosols, and other impurities. The clean air then smoothly enters the air inlet disinfection component 2 within the stable air chamber 16 for further deep disinfection and sterilization. After the air has been thoroughly disinfected and sterilized in the air inlet disinfection component 2, it is continuously driven by the exhaust fan component 4 and passes through the stable air chamber 16 to balance the airflow pressure, effectively buffering pressure fluctuations during the air supply process. Finally, the disinfected clean fresh air is smoothly delivered to the air outlet 12, achieving continuous and uniform delivery and purification of indoor fresh air.

[0037] After the filtered clean air enters the air inlet disinfection component 2, the LED disinfection lamp 27 inside the air inlet disinfection component 2 simultaneously starts the disinfection operation. Since the filter duct 21, connecting duct 23, and inner filter material 34 near the LED disinfection lamp 27 are all made of high light transmittance transparent material, the ultraviolet light emitted by the LED disinfection lamp 27 can penetrate to each part to be disinfected without obstruction; at the same time, the angle of the inclined baffle 28 is optimized to accurately divide the disinfection light into three groups, achieving all-round disinfection without dead angles: the first group of light is vertical The first group of light irradiates the air outlet side of the inner filter material 34, effectively killing bacteria, mold, and other microorganisms adsorbed on the surface of the filter material, preventing the filter material from becoming a carrier for bacterial growth. The second group of light irradiates the bottom inner wall of the filter duct 21 horizontally, thoroughly removing residual microorganisms inside the duct and preventing the inner wall of the duct from contaminating the airflow to be transported later. The third group of light irradiates the water body connected to the duct 23 at an angle, directly destroying the DNA structure of bacteria in the water body, realizing real-time synchronous disinfection of the humidification water, and preventing bacteria from spreading into the room with water vapor during the humidification process and causing secondary pollution from the source.

[0038] The clean gas, after being thoroughly disinfected by the LED disinfection lamp 27, is evenly discharged through two sets of symmetrical air inlets at the bottom of the filter duct 21. The discharged gas enters the connecting duct 23 at a stable flow rate and is then guided into the water outlet pipe 25 by the airflow. Since the water outlet pipe 25 is continuously connected to the water inlet pipe 14, an external clean water source can continuously supply humidifying water to the water outlet pipe 25. The water has been simultaneously disinfected. When the fresh air flows in the water outlet pipe 25, a stable negative pressure is formed, which smoothly blows the disinfected clean water into the atomizing duct of the atomizing component 22. The atomizing component 22 then... The system activates the atomization function, efficiently converting water into fine atomized particles. Simultaneously, the continuous fresh airflow inside the air intake disinfection component 2 directly blows air onto the atomization outlet of the atomization component 22. This accelerates the diffusion speed of the atomized particles and further refines them to an optimal particle size of 5-10μm, ensuring that the atomized particles can remain suspended in the air for a long time, significantly improving the uniformity and overall effect of indoor humidification. Finally, the clean air after multiple disinfection processes and the refined atomized water vapor fully blend inside the atomization component 22, forming a moist and clean fresh airflow that enters the subsequent exhaust stage.

[0039] When the LED disinfection lamp 27 is working, ultraviolet light reacts with the air to produce ozone, and the ozone concentration is strictly controlled within a safe range to avoid affecting the indoor environment. The right-angled trapezoidal hollow structure of the return air collection box 26 can effectively guide the ozone, directing it towards the internal air inlet duct. The two sets of air inlet ducts inside, together with the ozone collection device, can efficiently capture ozone in the air and prevent ozone leakage into the room and causing pollution. The collected ozone is precisely introduced into the secondary return air duct 32 through the exhaust duct 29. Several sets of ventilation holes on the outside of the secondary return air duct 32 are evenly distributed, so that the ozone flow forms a multi-directional spray, which fully covers the surface and internal pores of the air inlet filter element 33 and the inner core filter material 34. The strong oxidizing properties of ozone further kill the stubborn microorganisms remaining on the filter material, while effectively decomposing organic pollutants on the surface of the filter material, realizing secondary deep disinfection of the filter component 3. This not only greatly improves the overall disinfection thoroughness, but also reduces the colonization of microorganisms on the surface of the filter material, extends the service life of the filter material, and reduces the frequency of filter material replacement and user maintenance costs.

[0040] Throughout the operation of this device, the filter box 24 connecting the air duct 23, the water outlet pipe 25, and the atomizing component 22 can collect in real time water droplets that are not fully atomized during atomization, a small amount of impurities generated after disinfection, and residual wastewater inside the unit. This prevents wastewater and impurities from lingering inside the unit and breeding bacteria, while also preventing the accumulation of impurities from affecting the equipment's operating efficiency. The collected wastewater and impurities are promptly discharged to the external drainage system through the wastewater recovery pipe outside the filter box 24, keeping the inside of the unit clean and dry at all times, thus improving the safety and reliability of the equipment's operation. The bottom movable disassembly plate 35 is securely locked with bolts during normal operation to ensure the sealing performance of the air inlet chamber 17, preventing airflow leakage that could lead to a decrease in equipment operating efficiency. When it is necessary to maintain or replace the air inlet filter element 33 and the inner filter material 34 of the filter component 3, it is only necessary to remove the fixing bolts of the bottom movable disassembly plate 35 to quickly remove or replace the filter material from the rectangular hole in the bottom cover plate 18 without disassembling the entire machine. This convenient and efficient operation significantly reduces the difficulty and cost of later maintenance.

[0041] After dual filtration by the inlet filter element 33 and the inner filter material 34, triple disinfection by simultaneous LED ultraviolet disinfection, secondary deep disinfection by ozone, and real-time water disinfection, and the clean and humidified airflow after efficient atomization and humidification by the atomizing component 22, the clean and humidified airflow is discharged into the room at a stable flow rate from the air outlet 12 under the efficient drive of the exhaust fan component 4 (external rotor centrifugal motor). This achieves integrated operation of disinfection, sterilization, air purification, atomization and humidification, and fresh air delivery, effectively ensuring the cleanliness and health of indoor air, and accurately regulating indoor air humidity. It completely solves the technical problems of existing fresh air humidification equipment, such as incomplete disinfection, uneven humidification, inconvenient maintenance, and high energy consumption. It can be widely adapted to the fresh air treatment and air environment control needs of various indoor spaces such as residences, offices, shopping malls, hospitals, and office buildings.

[0042] The present invention discloses a modularly assembled ceiling-mounted fresh air humidifier indoor unit structure. By adding a multi-directional radiation-type collaborative disinfection module to the airflow channel between the filter element 3 (filter cartridge) and the atomizing element 22 (atomizer), and combining it with an adjustable-angle UV-C LED array (LED disinfection lamp 27), it achieves dual-function disinfection of water direct injection and air path radiation, eliminating the disinfection blind spot between the filter cartridge and the atomizer. It realizes integrated collaborative disinfection of humidification water, filter element 3, atomizing element 22 and intermediate air duct (filter air duct 21, connecting air duct 23) without dead angles, blocking the path of bacterial growth and transmission from the source, completely avoiding the risk of secondary pollution of the air supply, and ensuring indoor air quality.

[0043] The present invention discloses a modularly assembled ceiling-mounted fresh air humidifier indoor unit structure. By setting a gradient heat conduction and heat exchange structure outside the disinfection module, the residual heat from disinfection is collected and utilized in stages. The heat is transferred to the water storage chamber of the atomizing component 22 and the temperature of the fresh air is regulated. This not only improves the atomization efficiency of the atomizing component 22 and inhibits the growth of bacteria in low-temperature water, further consolidating the effect of integrated synergistic disinfection, but also preheats the fresh air in winter and prevents condensation and mold growth on the filter component 3 in summer. This realizes the resource utilization of residual heat from disinfection, improves the energy efficiency of equipment operation and the air delivery experience, and at the same time reduces scaling and microbial colonization on components, extending the service life of the filter component 3 and the atomizing component 22.

[0044] This invention discloses a modularly assembled ceiling-mounted fresh air humidifier indoor unit structure that integrates an ozone closed-loop recycling system (return air collection box 26, ozone collection device, exhaust pipe 29, and secondary return air duct 32) into a collaborative disinfection module. This constructs a composite disinfection mode of "UV physical disinfection + ozone chemical disinfection," utilizing ozone water to achieve enhanced water disinfection and ozone antibacterial water mist to achieve deep disinfection of filter component 3. This compensates for the limited effectiveness of single UV disinfection (LED disinfection lamp 27) against drug-resistant bacteria, deeply enhancing the overall effect of integrated collaborative disinfection and waste heat utilization-assisted disinfection. Simultaneously, the ozone decomposition filter decomposes unreacted ozone into oxygen, achieving efficient recycling of disinfection resources, eliminating the safety hazards of ozone emissions, and completely solving the problem of deep pollution of filter component 3. This achieves simultaneous improvement in disinfection effect, equipment energy efficiency, and operational safety.

[0045] The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and to design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A modularly assembled ceiling-mounted fresh air humidifier indoor unit structure, including a fresh air unit (1), wherein the fresh air unit (1) is provided with an air inlet disinfection component (2), a filter component (3) and an exhaust fan component (4). Its features are: The air inlet disinfection component (2) is equipped with an LED disinfection lamp (27) and an atomizing component (22), and the filter component (3) is provided with a secondary return air pipe (32) with ventilation holes. The LED disinfection lamp (27) simultaneously disinfects the fresh air on the side of the filter assembly (3) and the water in the air intake disinfection assembly (2). The ozone generated by the disinfection is collected and introduced into the secondary return air pipe (32) to disinfect the filter assembly (3) for a second time. The disinfected gas enters the atomizing assembly (22) to achieve atomization spray.

2. The structure according to claim 1, characterized in that: The fresh air unit (1) includes a casing (11), with an upper cover plate (19) and a bottom cover plate (18) fixed on the top and bottom of the casing (11), and an exhaust chamber (15), a stabilizing chamber (16) and an air inlet chamber (17) separated inside, and a water inlet pipe (14) connected to the outside.

3. The structure according to claim 2, characterized in that: The chassis (11) is provided with an air outlet (12) and an air inlet (13) at both ends. The exhaust chamber (15) is equipped with an exhaust fan assembly (4), the stabilizing air chamber (16) is equipped with an air inlet disinfection assembly (2), and the air inlet chamber (17) is equipped with a filter assembly (3). The air outlet (12) corresponds to the exhaust chamber (15), and the air inlet (13) corresponds to the air inlet chamber (17).

4. The structure according to claim 3, characterized in that: The filter assembly (3) includes two sets of side-fixed assemblies (31), with an air inlet filter element (33) and an inner core filter material (34) fixed between the two sets of side-fixed assemblies (31), and the secondary return air duct (32) is provided between them.

5. The structure according to claim 4, characterized in that: The filter assembly (3) is provided with a bottom movable disassembly plate (35) below it. The bottom cover plate (18) has a rectangular hole at the corresponding position. The bottom movable disassembly plate (35) is locked to the rectangular hole by bolts.

6. The structure according to claim 5, characterized in that: The air inlet disinfection component (2) includes a filter duct (21), with the inner core filter material (34) and the atomizing component (22) connected to both ends of the filter duct (21). The atomizing component (22) has a water outlet pipe (25) installed inside, and the air outlet of the water outlet pipe (25) is connected to the atomizing duct of the atomizing component (22).

7. The structure according to claim 6, characterized in that: The water outlet pipe (25) is equipped with a connecting air duct (23) at the air inlet. A return air collection box (26) is provided on the outside of the connecting air duct (23). An LED disinfection lamp (27) is installed above the return air collection box (26). An inclined baffle (28) is installed on the upper end of the LED disinfection lamp (27). The upper end of the inclined baffle (28) is fixed to the filter air duct (21).

8. The structure according to claim 7, characterized in that: The base of the return air collection box (26) is a hollow right-angled trapezoid, with two sets of air inlet pipes with ozone collection devices inside. The air inlet pipes are connected to the exhaust pipe (29) on the outside, and the exhaust end of the exhaust pipe (29) is connected to the secondary return air pipe (32).

9. The structure according to claim 8, characterized in that: The connecting air duct (23), water outlet pipe (25) and atomizing component (22) are fitted with a water filter box (24), and the outside of the water filter box (24) is connected to a sewage recovery pipe.

10. The structure according to claim 9, characterized in that: The side of the filter duct (21), connecting duct (23) and inner core filter material (34) near the LED disinfection lamp (27) is made of transparent material, and the exhaust fan assembly (4) adopts an external rotor centrifugal motor.

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