Air filtering device for heating ventilation air conditioner

Abstract

The utility model provides an air filtering device for a heating ventilation air conditioner, which comprises a filtering assembly and a cleaning assembly, the lower end of the filtering assembly is provided with an ash receiving disc for receiving cleaned dust, the rear side of the filtering assembly is provided with the cleaning assembly for cleaning dust, the filtering assembly comprises a fixed frame and an air outlet box, and the air outlet box is provided with a plurality of air outlet holes. Compared with the prior art, the dust collection device has the advantages that the dust collection disc is installed at the lower end of the filtering assembly, dust generated during cleaning is prevented from directly falling off, the dust can be conveniently treated in a centralized mode in the follow-up process, and due to the arrangement of the cleaning assembly, the dust collection device is convenient to use and high in practicability. The multiple cleaning brushes installed on the fixing frame are pushed by the fixing frame to continuously rotate and rub with the outer wall of the air inlet box, then the cleaning purpose is achieved, direct disassembly for dust cleaning is not needed, and only the dust receiving disc needs to be taken out after cleaning.

Description

Technical Field

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

[0002] After prolonged use, many traditional filters accumulate dust and particulate matter on their filter elements, reducing airflow and leading to incomplete cleaning. This results in the system failing to maintain good air quality during operation. This phenomenon primarily stems from the hydrophilic and oleophilic properties of the filter material, causing dust particles to adhere more firmly, thus making the cleaning process difficult. Furthermore, certain cleaning technologies, such as reverse airflow or mechanical vibration, often fail to effectively remove particles adhering deep within the filter media, significantly shortening the filter's lifespan.

[0003] Conventional solutions typically include regularly replacing filter cartridges, using more powerful cleaning devices, or introducing more efficient filter media. However, these methods have certain drawbacks. While regularly replacing filter cartridges ensures filtration effectiveness, this process increases maintenance and labor costs and may lead to system downtime. Using more powerful cleaning devices, while theoretically improving cleaning efficiency, may introduce excessive energy consumption and additional noise pollution, while also placing higher demands on the adaptability and durability of the equipment. Therefore, we aim to design an air filtration device for HVAC systems with a novel structure to address this problem. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an air filtration device for HVAC, which solves the problems mentioned in the background art.

[0005] This utility model is achieved through the following technical solution: an air filtration device for HVAC, comprising: a filter component and a cleaning component, wherein a dust collection tray for collecting cleaning dust is installed at the lower end of the filter component, and a cleaning component for collecting cleaning dust is installed at the rear side of the filter component.

[0006] The filter assembly includes a fixed frame and an air outlet box, with the air outlet box installed on the fixed frame. The cleaning assembly includes a mounting frame and cleaning brushes, with multiple cleaning brushes for cleaning dust installed inside the mounting frame.

[0007] In a preferred embodiment, the filter assembly further includes an air inlet box. Multiple air inlet boxes are installed at the rear end of the air outlet box. The interior of the rear end of the air outlet box is connected to the front end of the multiple air inlet boxes. In actual use, outside air enters the air outlet box through the multiple air inlet boxes and ultimately participates in the air conditioning process. The air inlet holes on the outside of the multiple air inlet boxes are used to filter the air and prevent impurities from mixing into the air and entering the air conditioner.

[0008] As a preferred embodiment, each of the air inlet boxes has multiple air inlet holes on its outer wall, and the air outlet boxes have multiple air outlet holes evenly distributed on their front side. In actual use, the diameter of the air inlet holes can be set according to the actual filtration requirements. A filter screen can also be added to the outer wall of the air inlet box to improve the filtration effect. However, the added filter screen needs to be flat and should not affect the normal cleaning work of the cleaning brush.

[0009] In a preferred embodiment, the cleaning assembly further includes guide rod one and guide rod two. One guide rod two is fixed to the lower right side and the upper left side of the rear end of the fixed frame, and one guide rod one is fixed to the upper right side and the lower left side of the rear end of the fixed frame.

[0010] In a preferred embodiment, a forward and reverse motor is installed on the outer wall of the front end of each of the guide rods, a drive pulley is fixed to the inner end of the forward and reverse motor, and a driven pulley is rotatably installed inside the rear end of each of the guide rods.

[0011] In a preferred embodiment, the driving pulley and the driven pulley are respectively connected to the front end and the rear end of the transmission belt for rotational transmission, and each of the guide rods has a guide groove facing downward on its upper surface.

[0012] In a preferred embodiment, a connecting sleeve is welded to the left and right sides of the upper end and the left and right sides of the lower end of the mounting frame, and the four connecting sleeves are slidably connected to two guide rods one and two guide rods two, respectively.

[0013] The lower end of the connecting sleeve located on the second guide rod is fixedly connected to the upper end of the transmission belt through a connecting block and screws. A limiting plate is provided at the rear end of each of the two first guide rods and the two second guide rods.

[0014] In a preferred embodiment, each of the air inlet boxes has a cleaning brush movably abutting its left and right sides, and the distance between two air inlet boxes is less than the maximum diameter of the cleaning brush. The outer wall of the cleaning brush is provided with four sets of vertically distributed bristles for cleaning the outer wall of the air inlet box.

[0015] After adopting the above technical solution, the beneficial effects of this utility model are: by setting a dust receiving tray at the lower end of the filter component, the dust receiving tray can receive the dust cleaned by the cleaning component, avoiding the dust generated during cleaning from falling directly, and facilitating the subsequent centralized treatment of the dust.

[0016] The cleaning components consist of multiple cleaning brushes mounted on a fixed frame. These brushes rotate and rub against the outer wall of the air inlet box as the frame pushes them, thus achieving the cleaning purpose. There is no need to disassemble the unit directly for dust cleaning; simply remove the dust collection tray after cleaning. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of an air filtration device for HVAC according to the present invention.

[0019] Figure 2 This is a schematic diagram showing the connection between the filter assembly and the cleaning assembly of an air filtration device for HVAC according to this utility model.

[0020] Figure 3 This is a schematic diagram of the cleaning component structure of an air filtration device for HVAC according to the present invention.

[0021] Figure 4 This is a schematic diagram of the cleaning brush of an air filter device for HVAC according to the present invention.

[0022] In the diagram, 100 represents the ash receiving tray;

[0023] 200-Filter assembly, 210-Fixing frame, 220-Outlet box, 230-Inlet box;

[0024] 300-Cleaning component, 310-Guide rod one, 320-Mounting frame, 330-Cleaning brush, 340-Connecting sleeve, 350-Guide rod two, 351-Guide groove. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1 to 4 This utility model provides a technical solution: an air filtration device for HVAC, including: a filter component 200 and a cleaning component 300. The filter component 200 is equipped with a dust collection tray 100 for collecting cleaning dust at its lower end, and the filter component 200 is equipped with a cleaning component 300 for cleaning dust at its rear side.

[0027] The filter assembly 200 includes a fixed frame 210 and an air outlet box 220. The fixed frame 210 is equipped with the air outlet box 220. The cleaning assembly 300 includes a mounting frame 320 and cleaning brushes 330. Multiple cleaning brushes 330 for cleaning dust are installed inside the mounting frame 320.

[0028] Please see Figures 1 to 2 The filter assembly 200 also includes an air inlet box 230. Multiple air inlet boxes 230 are installed at the rear end of the air outlet box 220. The interior of the rear end of the air outlet box 220 is connected to the front end of the multiple air inlet boxes 230. In actual use, outside air enters the air outlet box 220 through the multiple air inlet boxes 230 and finally participates in the air conditioning process. The air inlet holes on the outside of the multiple air inlet boxes 230 are used to filter the air and prevent impurities from mixing into the air and entering the air conditioner.

[0029] Each air inlet box 230 has multiple air inlet holes on its outer wall, and the air outlet box 220 has multiple air outlet holes evenly distributed on its front side. In actual use, the diameter of the air inlet holes can be set according to the actual filtration requirements. A filter screen can also be added to the outer wall of the air inlet box 230 to improve the filtration effect. However, the added filter screen needs to be flat and should not affect the normal cleaning work of the cleaning brush 330.

[0030] As the first embodiment of this utility model, by installing a dust collection tray 100 at the lower end of the filter component 200, in actual use, when the cleaning component 300 cleans the air inlet box 230, the impurities cleaned off will fall downwards under the action of gravity and eventually fall into the dust collection tray 100. The dust collection tray 100 can receive the dust cleaned off by the cleaning component 300, avoiding the dust generated during cleaning from falling directly, and facilitating the subsequent centralized treatment of the dust.

[0031] Please see Figures 1 to 4 The cleaning component 300 also includes a first guide rod 310 and a second guide rod 350. A second guide rod 350 is fixed to the lower right side and the upper left side of the rear end of the fixing frame 210, and a first guide rod 310 is fixed to the upper right side and the lower left side of the rear end of the fixing frame 210.

[0032] Each guide rod 2 350 has a forward and reverse motor installed on the outer wall of its front end. The inner end of the forward and reverse motor is fixed with a drive pulley. Each guide rod 2 350 has a driven pulley rotatably installed inside its rear end.

[0033] The driving pulley and the driven pulley are respectively connected to the front end and the rear end of the transmission belt for rotational transmission. Each guide rod 350 has a guide groove 351 facing downward on its upper surface.

[0034] A connecting sleeve 340 is welded to the upper left and right sides and the lower left and right sides of the mounting frame 320, respectively. The four connecting sleeves 340 are slidably connected to two guide rods 1 310 and two guide rods 2 350, respectively.

[0035] The lower end of the connecting sleeve 340 located on the second guide rod 350 is fixedly connected to the upper end of the transmission belt through a connecting block and screws. A limit plate is provided at the rear end of the two first guide rods 310 and the two second guide rods 350.

[0036] Each air inlet box 230 has a cleaning brush 330 in contact with its left and right sides respectively, and the distance between the two air inlet boxes 230 is less than the maximum diameter of the cleaning brush 330. The outer wall of the cleaning brush 330 is provided with four sets of vertically distributed bristles for cleaning the outer wall of the air inlet box 230.

[0037] As a second embodiment of this utility model, based on the first embodiment described above, the cleaning component 300 is configured such that, in actual use, each guide rod 350 has a forward / reverse motor mounted on its front outer wall, with a drive pulley fixed to the inner end of the motor, and a driven pulley rotatably mounted inside the rear end of each guide rod 350. The drive pulley and driven pulley are respectively connected to the front and rear ends of the transmission belt. When the air inlet box 230 needs cleaning, the two forward / reverse motors are started simultaneously. Driven by the motors, the drive pulley drives the transmission belt. Furthermore, the lower end of the connecting sleeve 340 on the guide rod 350 is connected by a connecting block and screws. The connecting sleeve 340 is fixedly connected to the upper end of the transmission belt, which causes the connecting sleeve 340 to move accordingly, thereby driving the entire mounting frame 320 to move back and forth under the guidance of guide rod 1 310 and guide rod 2 350. Since the left and right sides of each air inlet box 230 are in contact with a cleaning brush 330 respectively, and the distance between the two air inlet boxes 230 is less than the maximum diameter of the cleaning brush 330, the multiple cleaning brushes 330 installed on the fixed frame 210 continuously rotate and rub against the outer wall of the air inlet box 230 under the push of the fixed frame 210 (the cleaning brush 330 is rotated and installed on the fixed frame 210), thereby achieving the purpose of cleaning. There is no need to directly disassemble for dust cleaning; you only need to take out the dust collection tray 100 after cleaning.

[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An air filter apparatus for use in a heating, ventilation, and air conditioning system, comprising: The filter assembly (200) and the cleaning assembly (300) are characterized in that a dust receiving tray (100) for receiving cleaning dust is installed at the lower end of the filter assembly (200), and a cleaning assembly (300) for cleaning dust is installed at the rear side of the filter assembly (200). The filter assembly (200) includes a fixed frame (210) and an air outlet box (220). The fixed frame (210) is equipped with the air outlet box (220). The cleaning assembly (300) includes a mounting frame (320) and a cleaning brush (330). The mounting frame (320) is equipped with a plurality of cleaning brushes (330) for cleaning dust.

2. The air filtration device for HVAC as described in claim 1, characterized in that: The filter assembly (200) also includes an air inlet box (230), and multiple air inlet boxes (230) are installed at the rear end of the air outlet box (220). The rear end of the air outlet box (220) is connected to the front end of the multiple air inlet boxes (230).

3. An air filter assembly for use in a heating, ventilation and air conditioning system as set forth in claim 2, wherein: Each of the air inlet boxes (230) has multiple air inlet holes on its outer wall, and the air outlet box (220) has multiple air outlet holes evenly distributed on its front side.

4. An air filter assembly for use in a heating, ventilation and air conditioning system as set forth in claim 1, wherein: The cleaning component (300) also includes a guide rod one (310) and a guide rod two (350). A guide rod two (350) is fixed to the lower right side and the upper left side of the rear end of the fixed frame (210), and a guide rod one (310) is fixed to the upper right side and the lower left side of the rear end of the fixed frame (210).

5. An air filter assembly for use in a heating, ventilation and air conditioning system as set forth in claim 4, wherein: Each of the guide rods (350) has a forward and reverse motor installed on the outer wall of its front end. The inner end of the forward and reverse motor is fixed with a drive pulley. Each of the guide rods (350) has a driven pulley rotatably installed inside its rear end.

6. An air filter assembly for use in a heating, ventilation and air conditioning system as set forth in claim 5, wherein: The driving pulley and the driven pulley are respectively connected to the front end and the rear end of the transmission belt for rotational transmission. Each of the guide rods (350) has a guide groove (351) opened downward on its upper surface.

7. An air filter assembly for use in a heating, ventilation and air conditioning system as defined in claim 6 wherein: The mounting frame (320) has a connecting sleeve (340) welded to the left and right sides of the upper end and the left and right sides of the lower end respectively. The four connecting sleeves (340) are slidably connected to two guide rods (310) and two guide rods (350) respectively. The lower end of the connecting sleeve (340) located on the second guide rod (350) is fixedly connected to the upper end of the transmission belt by a connecting block and screws. A limiting plate is provided at the rear end of the two first guide rods (310) and the two second guide rods (350).

8. An air filtration device for HVAC as described in claim 3, characterized in that: Each of the air inlet boxes (230) has a cleaning brush (330) in contact with its left and right sides respectively, and the distance between the two air inlet boxes (230) is less than the maximum diameter of the cleaning brush (330). The outer wall of the cleaning brush (330) is provided with four sets of vertically distributed bristles for cleaning the outer wall of the air inlet box (230).

Images