Filter screen assembly of air conditioning unit

Abstract

The filter screen assembly of the air conditioning unit comprises an air inlet pipe, a clamping groove is formed in the top face of the air inlet pipe, the clamping groove extends to the inner walls of the two sides and the bottom wall of the air inlet pipe, a frame is movably connected into the clamping groove in an inserted mode, a filter plate is fixedly connected into the frame, and a containing groove communicated with the clamping groove is formed in the inner wall of one side of the air inlet pipe. A cleaning piece is movably connected in the storage groove, a groove is formed in the outer wall of one side of the air inlet pipe, a limiting piece is arranged in the groove, the limiting block movably penetrates through the groove and extends into the air inlet pipe, and the limiting piece is movably connected with the frame. According to the utility model, the filter plate is connected with the air inlet pipe through the limiting piece and the clamping groove, so that the filter plate can be conveniently and quickly disassembled and assembled, the filter plate does not need to be disassembled and assembled after a plurality of bolts are disassembled and assembled, and the cleaning piece attached to the filter plate is arranged in the air inlet pipe, so that the function of automatically cleaning the filter plate is realized; the filter plate does not need to be detached for manual cleaning.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning technology, and in particular to a filter assembly for an air conditioning unit. Background Technology

[0002] An air handling unit is an air handling device assembled from various air handling functional sections. It is suitable for air conditioning systems with a resistance greater than 100Pa. The air handling functional sections of the unit include: air mixing, flow equalization, filtration, cooling, primary and secondary heating, dehumidification, humidification, supply fan, return fan, water spray, noise reduction, and heat recovery units. Lifeng JK series modular cleanroom air handling units offer 30 specifications and 12 functional sections with air volumes ranging from 3500m³ / h to 200000m³ / h, allowing users to freely choose and combine them. They are mainly suitable for air purification systems in various cleanrooms, such as industrial electronics factories, precision machinery manufacturing plants, textile workshops, GMP pharmaceutical factories, cosmetics and food factories, pure water workshops, hospital operating rooms, ICUs, and many other applications.

[0003] Air conditioning units typically have a filter at the air inlet to filter and remove dust from outside air before it is sent into the room. After prolonged use, the filter needs to be cleaned. However, most modern filter frames are now fixed to the inlet of the unit's air duct with multiple bolts. To clean the filter, it needs to be removed from the air duct and then manually cleaned, which is quite troublesome. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a filter assembly for air conditioning units.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a filter assembly for an air conditioning unit, including an air inlet pipe, a slot formed on the top surface of the air inlet pipe, the slot extending to the inner walls on both sides and the bottom wall of the air inlet pipe, a frame movably inserted into the slot, a filter plate fixedly connected within the frame, a storage groove communicating with the slot formed on one side of the inner wall of the air inlet pipe, a cleaning component movably connected within the storage groove, a groove formed on one side of the outer wall of the air inlet pipe, a limiting component provided within the groove, the limiting component movably penetrating the groove and extending into the air inlet pipe, the limiting component being movably connected to the frame.

[0006] As a further description of the above technical solution: the limiting member includes a baffle movably connected to the groove, a pull block fixedly connected to the outside of the baffle, a plurality of equidistant first countersunk holes horizontally penetrating the inner wall of the air inlet pipe, each first countersunk hole being connected to the groove, a positioning block being telescopically connected in each first countersunk hole, a plurality of positioning grooves adapted to the positioning blocks being horizontally opened on the side of the frame, and a positioning block being movably inserted into each positioning groove.

[0007] As a further description of the above technical solution: each of the positioning blocks has a pull rod fixed at its end, the pull rod moves through the first countersunk hole and is fixedly connected to the baffle, and a second spring is sleeved on the outer edge of each pull rod, the second spring being located inside the large diameter end of the first countersunk hole.

[0008] As a further description of the above technical solution: the cleaning component includes a housing movably connected in the storage groove, a sponge block that fits against the outside of the filter plate is provided inside the housing, a base plate is fixedly connected to the outside of the sponge block, a pressure plate is provided on the outside of the base plate, and the pressure plate and the base plate are connected to the housing by bolts.

[0009] As a further description of the above technical solution: a guide block is fixed at each of the upper and lower ends of the housing, and the guide block is movably connected to each of the storage slots. A guide hole is horizontally penetrating the side of one of the guide blocks, and a guide rod is axially slidably connected inside the guide hole. The guide rod is horizontally fixed inside the air inlet pipe. A threaded hole is horizontally penetrating the side of the other guide block, and a screw is threaded through the threaded hole. One end of the screw is rotatably connected to the inner wall of the storage slot, and the other end is rotatably penetrating the inner wall of the air inlet pipe. A motor that is drivenly connected to the screw is horizontally fixed outside the air inlet pipe.

[0010] As a further description of the above technical solution: a sliding groove is vertically opened on each of the inner walls on both sides of the bottom of the slot, a slider is slidably connected in each sliding groove, a push plate is fixed between the two sliders, and a first spring is fixed between the sliding groove and the slider.

[0011] This utility model has the following beneficial effects:

[0012] Compared with existing technologies, the filter assembly of this air conditioning unit connects the filter plate to the air inlet duct through limiting parts and slots, which facilitates quick assembly and disassembly of the filter plate. It eliminates the need to remove and install multiple bolts before disassembling the filter plate. Furthermore, a cleaning component that fits the filter plate is installed inside the air inlet duct, which enables automatic cleaning of the filter plate without the need to remove it for manual cleaning. Attached Figure Description

[0013] Figure 1 This is a perspective view of the overall structure of a filter assembly for an air conditioning unit proposed in this utility model;

[0014] Figure 2 This is a main sectional view of the overall structure of the filter assembly of an air conditioning unit proposed in this utility model;

[0015] Figure 3 This is a side sectional view of the overall structure of a filter assembly for an air conditioning unit proposed in this utility model;

[0016] Figure 4 This utility model proposes a filter assembly for an air conditioning unit. Figure 1 Enlarged view of the structure at point A in the middle;

[0017] Figure 5 This utility model proposes a filter assembly for an air conditioning unit. Figure 2 Enlarged view of the structure at point B;

[0018] Figure 6 This utility model proposes a filter assembly for an air conditioning unit. Figure 3 Enlarged view of the structure at point C;

[0019] Figure 7 This utility model proposes a filter assembly for an air conditioning unit. Figure 3 Enlarged view of the structure at point D.

[0020] Legend:

[0021] 1. Air inlet duct; 2. Filter plate; 3. Slot; 4. Frame; 5. Motor; 6. Groove; 7. Pull block; 8. Baffle; 9. Guide rod; 10. Guide block; 11. Storage slot; 12. Sponge block; 13. Push plate; 14. Pressure plate; 15. Housing; 16. Threaded hole; 17. Screw; 18. Slide groove; 19. Slider; 20. First spring; 21. Positioning groove; 22. Positioning block; 23. First countersunk hole; 24. Second spring; 25. Pull rod. Detailed Implementation

[0022] 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.

[0023] Reference Figures 1 to 7The present invention provides a filter assembly for an air conditioning unit, comprising an air inlet pipe 1, a slot 3 on the top surface of the air inlet pipe 1, the slot 3 extending to the inner walls of both sides and the bottom wall of the air inlet pipe 1, a frame 4 movably inserted into the slot 3, a filter plate 2 fixedly connected in the frame 4, a storage groove 11 communicating with the slot 3 on one side of the inner wall of the air inlet pipe 1, a cleaning component movably connected in the storage groove 11, a groove 6 on one side of the outer wall of the air inlet pipe 1, a limiting component provided in the groove 6, the limiting block movably passing through the groove 6 and extending into the air inlet pipe 1, the limiting component movably connected to the frame 4, a sliding groove 18 vertically opened on each of the inner walls of the bottom sides of the slot 3, a slider 19 slidably connected in each sliding groove 18, a push plate 13 fixed between the two sliders 19, and a first spring 20 in a compressed state fixed between the sliding groove 18 and the slider 19.

[0024] The cleaning component includes a housing 15 movably connected within a storage slot 11. Inside the housing 15 is a sponge block 12 that fits against the outside of the filter plate 2. A base plate is fixedly connected to the outside of the sponge block 12. A pressure plate 14 is provided on the outside of the base plate. The pressure plate 14 and the base plate are connected to the housing 15 by bolts. Multiple second countersunk holes are horizontally penetrating the outside of the pressure plate 14. Multiple through holes are horizontally penetrating the side of the base plate. Multiple threaded grooves are horizontally formed on the end face of the housing 15. A bolt is movably fitted into each second countersunk hole, with the end of the bolt passing through the through hole and threaded into the threaded groove. Each of the upper and lower ends is fixed with a guide block 10. The guide block 10 is movably connected to the storage groove 11. A guide hole is horizontally penetrating the side of one of the guide blocks 10. A guide rod 9 is axially slidably connected inside the guide hole. The guide rod 9 is horizontally fixed inside the air inlet pipe 1. A threaded hole 16 is horizontally penetrating the side of the other guide block 10. A screw 17 is threaded through the threaded hole 16. One end of the screw 17 is rotatably connected to the inner wall of the storage groove 11, and the other end is rotatably penetrating the inner wall of the air inlet pipe 1. A motor 5 that is drivenly connected to the screw 17 is horizontally fixed outside the air inlet pipe 1.

[0025] The limiting component includes a baffle 8 movably connected to the groove 6, a pull block 7 fixedly connected to the outside of the baffle 8, and multiple equidistant first countersunk holes 23 horizontally penetrating the inner wall of the air inlet pipe 1. Each first countersunk hole 23 is connected to the groove 6, and a positioning block 22 is telescopically connected in each first countersunk hole 23. Multiple positioning grooves 21 adapted to the positioning blocks 22 are horizontally opened on the side of the frame 4. A positioning block 22 is movably inserted into each positioning groove 21. A pull rod 25 is fixed at the end of each positioning block 22. The pull rod 25 movably passes through the first countersunk hole 23 and is fixedly connected to the baffle 8. A second spring 24 is sleeved on the outer edge of each pull rod 25. The second spring 24 is located in the large diameter end of the first countersunk hole 23.

[0026] By connecting the filter plate 2 to the air inlet pipe 1 through the limiting component and the slot 3, it is easy to quickly disassemble and assemble the filter plate 2 without having to disassemble and assemble multiple bolts. A cleaning component that fits with the filter plate 2 is set in the air inlet pipe 1, realizing the automatic cleaning function of the filter plate 2 without having to remove the filter plate 2 for manual cleaning.

[0027] Working principle: When cleaning the filter plate 2, the motor 5 drives the screw 17 to rotate. The screw 17 moves the sponge block 12 in the housing 15 through the guide block 10. The sponge block 12 wipes the dust on the filter plate 2. After cleaning, the housing 15 is retracted into the storage groove 11. When the sponge block 12 needs to be replaced, simply remove the housing 15 from the storage groove 11, then remove the bolts and pressure plate 14, remove the old sponge block 12, insert the new sponge block 12 into the housing 15, and then install the pressure plate 14 and bolts back into the housing 15. When the filter plate 2 is damaged and needs to be replaced or repaired, the baffle 8 is pulled out of the groove 6 by pulling the pull block 7. The baffle 8 will drive the pull rod 25 to move out of the groove 6, so that the positioning block 22 is pulled out of the positioning groove 21 and retracted into the first countersunk hole 23. At the same time, the second spring 24 is compressed, and the frame 4 is limited. After disappearing, the first spring 20, which was in the intention state, resets. When the first spring 20 resets, it drives the push plate 13 to rise. When the push plate 13 rises, it pushes the frame 4 upward, so that the top of the frame 4 extends out of the slot 3. Then, the frame 4 and the filter plate 2 are pulled out of the slot 3 together. Pulling the pull block 7 pulls the baffle 8 out of the groove 6. The baffle 8 drives the pull rod 25 to move out of the groove 6, so that the positioning block 22 is retracted into the first countersunk hole 23. At the same time, the second spring 24 is compressed. Then, the frame 4 with the new filter plate 2 is placed into the slot 3 and pressed down to make the push plate 13 descend. The first spring 20 is compressed so that the top surface of the frame 4 is flush with the top surface of the air inlet pipe 1. Then, the pull block 7 is released, and the second spring 24, which was in the compressed state, resets. When the second spring 24 resets, it pushes the positioning block 22 from the first countersunk hole 23 to the positioning groove 21, fixing the frame 4 in the slot 3.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A filter assembly for an air conditioning unit, comprising an air inlet duct (1), characterized in that: The top surface of the air inlet pipe (1) has a slot (3) extending to the inner walls of both sides and the bottom wall of the air inlet pipe (1). A frame (4) is movably inserted into the slot (3), and a filter plate (2) is fixedly connected inside the frame (4). A storage groove (11) communicating with the slot (3) is opened on one side of the inner wall of the air inlet pipe (1). A cleaning component is movably connected inside the storage groove (11). A groove (6) is opened on one side of the outer wall of the air inlet pipe (1). A limiting component is provided inside the groove (6). The limiting component movably passes through the groove (6) and extends into the air inlet pipe (1). The limiting component is movably connected to the frame (4).

2. The filter assembly of an air conditioning unit according to claim 1, characterized in that: The limiting component includes a baffle (8) movably connected to the groove (6), a pull block (7) fixedly connected to the outside of the baffle (8), and multiple equidistant first countersunk holes (23) horizontally penetrating the inner wall of the air inlet pipe (1). Each first countersunk hole (23) is connected to the groove (6), and a positioning block (22) is telescopically connected in each first countersunk hole (23). Multiple positioning grooves (21) adapted to the positioning blocks (22) are horizontally opened on the side of the frame (4), and a positioning block (22) is movably inserted in each positioning groove (21).

3. The filter assembly of an air conditioning unit according to claim 2, characterized in that: Each of the positioning blocks (22) has a pull rod (25) fixed at its end. The pull rod (25) moves through the first countersunk hole (23) and is fixedly connected to the baffle (8). Each of the pull rods (25) has a second spring (24) sleeved on its outer edge. The second spring (24) is located inside the large diameter end of the first countersunk hole (23).

4. The filter assembly of an air conditioning unit according to claim 1, characterized in that: The cleaning component includes a housing (15) movably connected within the storage slot (11). Inside the housing (15) is a sponge block (12) that fits against the outside of the filter plate (2). A base plate is fixedly connected to the outside of the sponge block (12). A pressure plate (14) is provided on the outside of the base plate. The pressure plate (14) and the base plate are connected to the housing (15) by bolts.

5. The filter assembly of an air conditioning unit according to claim 4, characterized in that: A guide block (10) is fixed at each of the upper and lower ends of the housing (15). The guide block (10) is movably connected to each of the storage slots (11). A guide hole is horizontally penetrating the side of one of the guide blocks (10). A guide rod (9) is axially slidably connected in the guide hole. The guide rod (9) is horizontally fixed in the air inlet pipe (1). A threaded hole (16) is horizontally penetrating the side of the other guide block (10). A screw (17) is threaded through the threaded hole (16). One end of the screw (17) is rotatably connected to the inner wall of the storage slot (11), and the other end is rotatably penetrating the inner wall of the air inlet pipe (1). A motor (5) that is drivenly connected to the screw (17) is horizontally fixed outside the air inlet pipe (1).

6. The filter assembly of an air conditioning unit according to claim 1, characterized in that: The bottom two inner walls of the slot (3) each have a vertically opened slide groove (18), and each slide groove (18) is slidably connected to a slider (19). A push plate (13) is fixed between the two sliders (19), and a first spring (20) is fixed between the slide groove (18) and the slider (19).

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