A purification mechanism for a fresh air-circulating air hybrid air conditioning system

By employing multi-stage filters and airflow regulation structures in air conditioners, the problems of fixed, single-specification filters and inconvenient airflow adjustment in air conditioning purification mechanisms are solved, achieving multi-stage purification and stable air output with high purification efficiency.

CN224580391UActive Publication Date: 2026-07-31SUZHOU BAOYANG AIR CONDITIONING EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SUZHOU BAOYANG AIR CONDITIONING EQUIP CO LTD
Filing Date
2025-08-13
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

The existing air conditioning purification mechanism filters have fixed and uniform specifications, which makes it difficult to meet the complex and ever-changing air quality requirements. Moreover, the replacement process is cumbersome, and it is not convenient to adjust the fresh air intake volume, making it difficult to ensure that the output air meets health standards.

Method used

It adopts a multi-stage filtration structure, including a coarse filter, a medium-efficiency filter, and a high-efficiency filter, which are fixed by positioning columns. Combined with the air volume adjustment structure, the servo motor drives the worm gear and turbine to adjust the baffles, so as to achieve multi-stage air purification and air intake volume adjustment.

Benefits of technology

It achieves multi-stage air purification, ensuring stable purification efficiency, and facilitates filter replacement and airflow adjustment, guaranteeing that the output air always meets health standards.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

This application relates to a purification mechanism for a fresh air-circulating air composite air conditioner, including a purification housing. One end of the purification housing is provided with a fresh air inlet, and the other end of the purification housing is provided with an air outlet. An internal circulation chamber is provided inside the purification housing, and a circulating fan is provided inside the internal circulation chamber. This utility model enables multi-stage filtration by installing coarse, medium, and high efficiency filters in a slot at the rear end of the air inlet frame, effectively improving the air purification effect. Each filter is precisely fixed by positioning posts and positioning holes, ensuring stable installation and facilitating replacement and cleaning by staff. The operation of the internal circulation fan causes air to flow in the internal circulation chamber. After passing through layers of filtration, clean air is delivered, achieving the purification purpose.
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Description

Technical Field

[0001] This application relates to the field of air conditioning equipment technology, and in particular to a purification mechanism for a fresh air-circulating air conditioning system. Background Technology

[0002] With the improvement of people's living standards and the pursuit of a healthy life, indoor air quality has received increasing attention. Fresh air-circulating air conditioning systems, as important equipment for improving indoor air quality, can both introduce fresh outdoor air and circulate indoor air, and are widely used in modern buildings.

[0003] Many existing air conditioners use fixed-specification and single-type filters for their purification mechanisms. Their filtration accuracy and efficiency are insufficient to meet the complex and ever-changing air quality requirements. Furthermore, the filter replacement process is cumbersome, requiring professional tools and certain operating skills, which causes great inconvenience to users. At the same time, it is not convenient to adjust the intake air volume during use, making it difficult to ensure that the output air always meets health standards. Utility Model Content

[0004] To address the problems mentioned in the background art, this application provides a purification mechanism for a fresh air-circulating air conditioning system.

[0005] The purification mechanism of the fresh air-circulating air hybrid air conditioner provided in this application adopts the following technical solution:

[0006] A purification mechanism for a fresh air-circulating air composite air conditioner includes a purification housing. One end of the purification housing is provided with a fresh air inlet, and the interior of the fresh air inlet is provided with a purification structure. The other end of the purification housing is provided with an air outlet, and the interior of the air outlet is provided with the same purification structure. The interior of the purification housing is provided with an inner circulation chamber, and a circulating fan is provided in the inner circulation chamber. Air volume adjustment structures are also provided at both ends of the inner circulation chamber.

[0007] Preferably, the purification structure includes an air inlet frame installed inside the fresh air inlet, an air inlet is provided on the front side of the air inlet frame, and three placement slots are provided at the rear end of the air inlet frame, with a coarse filter, a medium filter and a high-efficiency filter installed inside the three placement slots.

[0008] Preferably, the coarse filter is disposed on the outermost layer, the medium filter is disposed on the middle layer, and the high-efficiency filter is disposed on the innermost layer. Each of the coarse filter, the medium filter, and the high-efficiency filter has a positioning post at both ends, and the positioning post is adapted to the positioning hole opened on the air inlet frame at both ends of the placement groove.

[0009] Preferably, symmetrical fixing components are provided on both sides of the purification housing at the edge of the fresh air inlet. The fixing components include L-shaped fixing blocks installed on the side walls of the purification housing. A pull rod is slidably installed in the through hole opened on the L-shaped fixing block, and a pressure plate is connected to one end of the pull rod.

[0010] Preferably, a symmetrical fixing rod is provided on one side of the pressing plate, and one end of the fixing rod is connected to the corresponding fixing holes opened on the two side walls of the purification housing and the two side walls of the air inlet frame. A spring is connected to the other side of the pressing plate, and the other end of the spring is connected to the bottom of the L-shaped fixing block. A symmetrical guide rod is also provided on the other side of the pressing plate, and the other end of the guide rod slides in the guide hole opened on the L-shaped fixing block.

[0011] Preferably, the air volume adjustment structure includes two symmetrical partition plates installed inside the purification housing. The partition plates are provided with air inlets. Symmetrical support blocks are provided on one side of the partition plates. A worm gear is rotatably installed in the shaft hole provided on the side wall of the support block. One end of the worm gear is connected to a servo motor fixedly installed on one side of one of the support blocks.

[0012] Preferably, the worm gear meshes with the turbine, the turbine is mounted on a rotating shaft located in a shaft hole at the middle position on the partition plate, and the other end of the rotating shaft is provided with a baffle.

[0013] In summary, this application includes the following beneficial technical effects:

[0014] 1. This utility model is equipped with a purification structure. By installing a coarse filter, a medium filter, and a high-efficiency filter in the slot at the rear end of the air inlet frame, multi-stage filtration can be achieved, which can effectively improve the air purification effect. Each filter is precisely fixed by positioning columns and positioning holes to ensure stable installation and facilitate replacement and cleaning by staff. The operation of the internal circulation fan causes air to flow in the internal circulation chamber. After passing through layers of filtration, clean air is sent out to achieve the purification purpose.

[0015] 2. This utility model is equipped with an air volume adjustment structure. By driving a servo motor to drive the worm gear to rotate, the worm gear drives the turbine to rotate, which in turn drives the baffle to rotate. This allows the closure between the baffle and the air inlet to be adjusted, thereby adjusting the air volume of the air inlet. Reasonable adjustment of the air volume allows the purification structure to play its role fully, maintains stable purification efficiency, and ensures that the output air always meets health standards. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the purification mechanism of a fresh air-circulating air conditioning system according to an embodiment of this application;

[0017] Figure 2This is a cross-sectional view of the internal structure of the purification housing in an embodiment of this application;

[0018] Figure 3 This is a side view of the airflow adjustment structure inside the purification housing in an embodiment of this application;

[0019] Figure 4 This is a schematic diagram showing the disassembled internal structure of the air inlet frame in an embodiment of this application;

[0020] Figure 5 This is an enlarged schematic diagram of the structure at point A in the embodiment of this application.

[0021] Explanation of reference numerals in the attached diagram: 1. Purification housing; 2. Fresh air inlet; 3. Circulating fan; 4. Air inlet frame; 5. Placement slot; 6. Coarse filter; 7. Medium-efficiency filter; 8. High-efficiency filter; 9. Positioning column; 10. Positioning hole; 11. L-shaped fixing block; 12. Pull rod; 13. Pressure plate; 14. Fixing rod; 15. Fixing hole; 16. Partition plate; 17. Air inlet; 18. Worm gear; 19. Servo motor; 20. Turbine; 21. Baffle. Detailed Implementation

[0022] The following is in conjunction with the appendix Figure 1 —5 provides further detailed description of this application.

[0023] This application discloses a purification mechanism for a fresh air-circulating air composite air conditioner, including a purification housing 1. A fresh air inlet 2 is provided at one end of the purification housing 1, and a purification structure is provided inside the fresh air inlet 2. An air outlet is provided at the other end of the purification housing 1, and the same purification structure is provided inside the air outlet. An internal circulation chamber is provided inside the purification housing 1, and a circulating fan 3 is provided inside the internal circulation chamber. Air volume adjustment structures are also provided at both ends of the internal circulation chamber inside the purification housing 1.

[0024] refer to Figure 2 and Figure 4The purification structure includes an air inlet frame 4 installed inside the fresh air inlet 2. An air inlet is located on the front side of the air inlet frame 4, and three placement slots 5 are opened at the rear end of the air inlet frame 4. Coarse filter 6, medium filter 7, and high-efficiency filter 8 are installed inside the three placement slots 5. The coarse filter 6 is located on the outermost layer, the medium filter 7 on the middle layer, and the high-efficiency filter 8 on the innermost layer. Positioning posts 9 are respectively provided at both ends of the coarse filter 6, medium filter 7, and high-efficiency filter 8. The positioning posts 9 are located on the air inlet frame 4 within the placement slots 5. The positioning holes 10 at both ends are compatible. More specifically, by installing a coarse filter 6, a medium filter 7, and a high-efficiency filter 8 in the three placement slots 5 at the rear end of the air inlet frame 4, multi-stage filtration can be achieved, effectively improving the air purification effect. Each filter is precisely fixed to the positioning hole 10 by the positioning post 9, ensuring a stable installation and facilitating replacement and cleaning by staff. The operation of the internal circulation fan 3 causes air to flow in the internal circulation chamber. After passing through layers of filtration, clean air is sent out, achieving the purification purpose.

[0025] refer to Figure 3 and Figure 5 Symmetrical fixing components are also provided on both sides of the purification housing 1 at the edge of the fresh air inlet 2. The fixing components include L-shaped fixing blocks 11 installed on the two side walls of the purification housing 1. Pull rods 12 are slidably installed in the through holes opened on the L-shaped fixing blocks 11. One end of the pull rod 12 is connected to a pressure plate 13. Symmetrical fixing rods 14 are provided on one side of the pressure plate 13. One end of the fixing rods 14 is connected to the corresponding fixing holes 15 opened on the two side walls of the purification housing 1 and the two side walls of the air inlet frame 4. A spring is connected to the other side of the pressure plate 13. The other end of the spring is connected to the bottom of the L-shaped fixing block 11. Symmetrical guide rods are also provided on the other side of the pressure plate 13. The other end of the guide rods slides in the guide holes opened on the L-shaped fixing blocks 11. More specifically, by pulling the pull rods 12, the pressure plate 13 is moved to one side to squeeze the spring, so that the pressure plate 13 drives the fixing rods 14 to disengage from the fixing holes 15 opened on the two side walls of the air inlet frame 4, making it easy for the staff to disassemble the air inlet frame 4, thereby facilitating the cleaning of the internal purification structure.

[0026] refer to Figure 3The airflow adjustment structure includes two symmetrical partition plates 16 installed inside the purification housing 1. Each partition plate 16 has an air inlet 17. Symmetrical support blocks are located on one side of each partition plate 16. A worm gear 18 is rotatably mounted in a shaft hole on the side wall of each support block. One end of the worm gear 18 is connected to a servo motor 19 fixedly mounted on one side of one of the support blocks. The worm gear 18 meshes with a turbine 20, which is mounted on a rotating shaft located in the middle of the partition plate 16. A baffle 21 is located at the other end of the rotating shaft. More specifically, by driving the servo motor 19 to rotate the worm gear 18, the worm gear 18 drives the turbine 20 to rotate, thereby causing the rotating shaft to rotate within the shaft hole in the middle of the partition plate 16. This rotation drives the baffle 21 connected to the other end to rotate, allowing adjustment of the closure between the baffle 21 and the air inlet 17, thus regulating the airflow through the air inlet 17. Reasonable adjustment of the airflow allows the purification structure to function fully, maintaining stable purification efficiency and ensuring that the output air always meets health standards.

[0027] The implementation principle of the purification mechanism of the fresh air-circulating air conditioning system in this application embodiment is as follows: During use, air enters the internal air intake frame 4 through the fresh air inlet 2, undergoing three purification filters: a coarse filter 6, a medium-efficiency filter 7, and a high-efficiency filter 8. The purified air then enters the internal circulation chamber through the air inlet 17 on the partition plate 16, driving the circulating fan 3 within the internal circulation chamber to circulate the air. The air then enters the same purification structure at the air outlet through another air inlet 17 on another partition plate 16, undergoing three more purification filters. The purified air is then discharged from the air outlet, effectively improving the air purification effect. When cleaning the filters is required... Pulling the lever 12 moves the pressure plate 13 to one side, squeezing the spring. This causes the pressure plate 13 to move the fixing rod 14 away from the fixing holes 15 on both sides of the air inlet frame 4, making it easy for staff to disassemble the air inlet frame 4 and clean the three internal filters. When the air volume needs to be adjusted, the servo motor 19 drives the worm gear 18 to rotate, which in turn drives the turbine 20 to rotate. This causes the rotating shaft to rotate the baffle 21, allowing the closure between the baffle 21 and the air inlet hole 17 to be adjusted, thereby regulating the air intake of the air inlet hole 17. Reasonable adjustment of the air intake allows the purification structure to function fully, maintains stable purification efficiency, and ensures that the output air always meets health standards.

[0028] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A purification mechanism for a fresh air-circulating air composite air conditioner, characterized in that: The device includes a purification housing (1), one end of which is provided with a fresh air inlet (2), and the interior of the fresh air inlet (2) is provided with a purification structure. The other end of the purification housing (1) is provided with an air outlet, and the air outlet is provided with the same purification structure. The interior of the purification housing (1) is provided with an internal circulation chamber, and the internal circulation chamber is provided with a circulating fan (3). The two ends of the internal circulation chamber are also provided with air volume adjustment structures.

2. The purification mechanism of the fresh air-circulated air composite air conditioner according to claim 1, characterized in that: The purification structure includes an air inlet frame (4) installed inside the fresh air inlet (2). An air inlet is provided on the front side of the air inlet frame (4). Three placement slots (5) are provided at the rear end of the air inlet frame (4). Coarse filter screen (6), medium filter screen (7) and high efficiency filter screen (8) are installed inside the three placement slots (5).

3. The purification mechanism of the fresh air-circulated air composite air conditioner according to claim 2, characterized in that: The coarse filter (6) is located on the outermost layer, the medium filter (7) is located on the middle layer, and the high-efficiency filter (8) is located on the innermost layer. The coarse filter (6), the medium filter (7) and the high-efficiency filter (8) are respectively provided with positioning posts (9) at both ends. The positioning posts (9) are adapted to the positioning holes (10) opened at both ends of the placement groove (5) on the air inlet frame (4).

4. The purification mechanism of the fresh air-circulated air composite air conditioner according to claim 1, characterized in that: Symmetrical fixing components are provided on both sides of the purification housing (1) at the edge of the fresh air inlet (2). The fixing components include L-shaped fixing blocks (11) installed on the two side walls of the purification housing (1). A pull rod (12) is slidably installed in the through hole opened on the L-shaped fixing block (11). One end of the pull rod (12) is connected to a pressure plate (13).

5. The purification mechanism of the fresh air-circulated air composite air conditioner according to claim 4, characterized in that: A symmetrical fixing rod (14) is provided on one side of the pressing plate (13). One end of the fixing rod (14) is connected to the corresponding fixing holes (15) opened on the two side walls of the purification housing (1) and the two side walls of the air inlet frame (4). A spring is connected to the other side of the pressing plate (13). The other end of the spring is connected to the bottom of the L-shaped fixing block (11). A symmetrical guide rod is also provided on the other side of the pressing plate (13). The other end of the guide rod slides in the guide hole opened on the L-shaped fixing block (11).

6. The purification mechanism of the fresh air-circulated air composite air conditioner according to claim 1, characterized in that: The air volume adjustment structure includes two symmetrical partition plates (16) installed inside the purification housing (1). The partition plates (16) are provided with air inlet holes (17). A symmetrical support block is provided on one side of the partition plate (16). A worm gear (18) is rotatably installed in the shaft hole provided on the side wall of the support block. One end of the worm gear (18) is connected to a servo motor (19) fixedly installed on one side of one of the support blocks.

7. The purification mechanism of the fresh air-circulated air composite air conditioner according to claim 6, characterized in that: The worm (18) meshes with the turbine (20), which is mounted on a rotating shaft located in the middle of the shaft hole on the partition plate (16). The other end of the rotating shaft is provided with a baffle (21).