Filter assembly for air outlet section of air conditioning system of clean room

Abstract

The utility model relates to the technical field of air conditioning system filtration, in particular to a clean room air conditioning system air outlet section filter assembly which comprises a lower clamping box, a protection assembly is fixedly connected in the lower clamping box, an upper clamping box is fixedly connected to the top end of the lower clamping box, an air inlet cavity is formed in the upper clamping box, and the protection assembly comprises a base box. A rotating ring is rotationally connected into the base box, four sets of inner tooth grooves are formed in the inner side of the rotating ring, one side of each inner tooth groove is in meshed connection with a linkage gear, one end of each linkage gear is fixedly connected with a quarter baffle, one side of the outer wall of the rotating ring is fixedly connected with a set of outer teeth, and one side of each set of outer teeth is in meshed connection with an adjusting mechanism. According to the filter assembly, the problem that secondary pollution is easily caused from the upper part when the filter assembly at the air outlet section of the clean room air-conditioning system is disassembled is effectively solved, exposure of foreign matters, dust and viruses above is prevented, the pollution risk is reduced, and the health of indoor personnel and the clean production environment are guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning system filtration technology, specifically a filter component for the air outlet section of a cleanroom air conditioning system. Background Technology

[0002] The air outlet filter assembly of a cleanroom air conditioning system is a key component for ensuring the cleanliness of the cleanroom air. It is usually installed at the air outlet of the air conditioning system and consists of high-efficiency or ultra-high-efficiency filters. When the air conditioning system supplies air, the air flows through this assembly. The filter can effectively intercept tiny particles in the air, such as dust, bacteria, and viruses, preventing them from entering the cleanroom. The filtered clean air is evenly delivered into the room to maintain the required cleanliness level of the cleanroom, meet the high standards of the production environment required by industries such as electronics, pharmaceuticals, and food, and ensure product quality and production safety.

[0003] However, the current air outlet filter components have significant drawbacks when disassembling and replacing them. Due to long-term operation, foreign objects filtered by the filter components will remain on top of them, as well as dust and even viruses. Since these filter components are usually installed in the ceiling, during disassembly, the foreign objects, dust, and viruses remaining on top will be directly exposed to the cleanroom space, which can easily cause secondary pollution of the cleanroom environment and pose potential risks to the health of indoor personnel and the clean production environment. Therefore, an air outlet filter component for a cleanroom air conditioning system is proposed to address the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a filter assembly for the air outlet section of a cleanroom air conditioning system to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A filter assembly for the air outlet section of a cleanroom air conditioning system includes a lower housing, a protective assembly fixedly connected inside the lower housing, and an upper housing fixedly connected to the top of the lower housing. The upper housing has an air inlet chamber inside. The protective assembly includes a base housing, with a rotating ring rotatably connected inside the base housing. The rotating ring has four sets of internal toothed grooves on its inner side, one side of which is meshed with a linkage gear. One end of the linkage gear is fixedly connected to a quarter-plate. One side of the outer wall of the rotating ring is fixedly connected to a set of external teeth, and one side of the set of external teeth is meshed with an adjusting mechanism. An arc-shaped rack for cooperating with the adjusting mechanism is fixedly connected to the upper surface of the rotating ring. The adjusting mechanism includes a drive shaft rotatably disposed on one side inside the base housing. A transmission disc is fixedly connected to the top of the drive shaft. A pinion is fixedly connected to one side of the transmission disc, and a large gear is fixedly connected to the other side of the transmission disc. The pinion meshes with the set of external teeth, and the large gear meshes with the arc-shaped rack.

[0007] As a further optimization of this utility model, the four sets of internal tooth grooves are arranged in a circle with the central axis of the rotating ring as the center. The number of the linkage gears corresponds to the number of internal tooth grooves. One side of the outer wall of the linkage gear is provided with a tooth groove for meshing with the internal tooth grooves. The other side of the linkage gear has an arc-shaped structure. The linkage gear is rotatably connected to the base box through a connecting shaft.

[0008] As a further optimization of this utility model, the number of quarter-plates corresponds to the number of linkage gears, the quarter-plates are located inside the rotating ring, the thickness of the quarter-plates is adapted to the thickness of the rotating ring, and the four quarter-plates together form a complete circle.

[0009] As a further optimization of this utility model, the center of the drive shaft and the center of the transmission disk are located on the same central axis, the drive shaft extends to the bottom of the lower card box, the drive shaft is rotatably connected to the lower card box, and an operation knob is fixedly connected to the bottom end of the drive shaft.

[0010] As a further optimization of this utility model, the center of the half-gear and the center of the transmission disk are located on the same central axis, and the tooth height of the half-gear is adapted to the tooth height of the external teeth.

[0011] As a further optimization of this utility model, the center of the large half gear and the center of the transmission disk are located on the same central axis, the diameter of the large half gear is 1.5 times the diameter of the small half gear, the large half gear is located above the small half gear, and the tooth height of the large half gear is adapted to the tooth height of the arc-shaped rack.

[0012] As a further optimization of this utility model, a filter element is embedded at the bottom of the inner side of the lower card box, and a grooved cover plate is fitted at the top of the inner side of the lower card box. The interior of the air inlet cavity is connected to the interior of the lower card box through the interior of the grooved cover plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention effectively solves the problem of secondary pollution caused by disassembling the filter components of the air outlet section of a cleanroom air conditioning system from above by using a protective component and an adjustment mechanism. The rotating ring and linkage gear in the protective component can drive the quarter baffle to open and close precisely. In the closed state, it can prevent pollutants from above from entering the lower cartridge. The adjustment mechanism, through the combination design of a small half gear and a large gear, realizes that the rotating ring rotates slowly at first and then fast, avoiding misoperation. Operators can control the opening and closing of the quarter baffle from outside the cleanroom by operating a knob. Before disassembly, the baffle should be closed to prevent the exposure of foreign objects, dust, and viruses from above, reduce the risk of pollution, protect the health of indoor personnel and the clean production environment, and improve the safety of the filter components. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is an exploded structural diagram of the entire utility model;

[0017] Figure 3 This is a schematic diagram of the back structure of the lower card box of this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the protective component of this utility model;

[0019] Figure 5 This is a partial structural schematic diagram of the protective component of this utility model;

[0020] Figure 6 This is a schematic diagram of the adjustment mechanism of this utility model.

[0021] In the picture: 1. Lower card box;

[0022] 2. Protective components; 21. Base box; 22. Rotating ring; 23. Internal gear groove; 24. Linkage gear; 25. Quarter baffle; 26. External gear teeth; 27. Adjustment mechanism; 271. Drive shaft; 272. Transmission disc; 273. Half pinion; 274. Half gear;

[0023] 28. Curved rack; 29. ​​Operating knob;

[0024] 3. Install the card box;

[0025] 4. Air inlet cavity; 5. Filter element; 6. Grooved cover plate. Detailed Implementation

[0026] 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.

[0027] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0028] Please see Figures 1-6 This utility model provides a technical solution:

[0029] A filter assembly for the air outlet section of a cleanroom air conditioning system includes a lower housing 1, a protective assembly 2 fixedly connected inside the lower housing 1, and an upper housing 3 fixedly connected to the top of the lower housing 1. The upper housing 3 has an air inlet chamber 4 inside. The protective assembly 2 includes a base 21, a rotating ring 22 rotatably connected inside the base 21, four sets of internal toothed grooves 23 on the inner side of the rotating ring 22, a linkage gear 24 meshing with one side of each internal toothed groove 23, a quarter-plate baffle 25 fixedly connected to one end of each linkage gear 24, and a set of external teeth 26 fixedly connected to one side of the outer wall of the rotating ring 22. An adjustment mechanism 27 is connected to the rotating ring 22. An arc-shaped rack 28 for cooperating with the adjustment mechanism 27 is fixedly connected to the upper surface of the rotating ring 22. The adjustment mechanism 27 includes a drive shaft 271, which is rotatably disposed on one side inside the base box 21. A transmission disk 272 is fixedly connected to the top of the drive shaft 271. A pinion 273 is fixedly connected to one side of the transmission disk 272, and a large gear 274 is fixedly connected to the other side of the transmission disk 272. The pinion 273 is meshed with a set of external teeth 26, and the large gear 274 is meshed with the arc-shaped rack 28.

[0030] As a further implementation of this scheme, four sets of internal tooth grooves 23 are arranged in a circle with the central axis of the rotating ring 22 as the center. The number of linkage gears 24 corresponds to the number of internal tooth grooves 23. One side of the outer wall of the linkage gear 24 is provided with a tooth groove for meshing with the internal tooth grooves 23. The other side of the linkage gear 24 has an arc-shaped structure. The linkage gear 24 is rotatably connected to the base box 21 through a connecting shaft. This design makes the linkage gear 24 more stable and reliable when meshing with the internal tooth grooves 23, and can accurately transmit the rotation of the rotating ring 22 to the quarter baffle 25, ensuring the consistency and synchronicity of the opening and closing actions of the quarter baffle 25.

[0031] As a further implementation of this solution, the number of quarter baffles 25 corresponds to the number of linkage gears 24. The quarter baffles 25 are located inside the rotating ring 22, and the thickness of the quarter baffles 25 is adapted to the thickness of the rotating ring 22. The four quarter baffles 25 together form a complete circle, which can completely block the pollutants above from entering the lower cartridge 1 when closed, effectively improving the sealing and protection performance of the filter assembly and reducing the risk of cleanroom contamination.

[0032] As a further implementation of this solution, the center of the drive shaft 271 and the transmission disk 272 are located on the same central axis. The drive shaft 271 extends to the bottom of the lower card box 1 and is rotatably connected to the lower card box 1. An operation knob 29 is fixedly connected to the bottom end of the drive shaft 271, which allows the operator to directly open and close the quarter baffle 25 outside the clean room without disassembling the filter assembly. This improves the convenience and safety of operation and reduces the risk of contamination that may be caused by frequent disassembly of the filter assembly.

[0033] As a further implementation of this scheme, the center of the half-pinion 273 and the center of the transmission disk 272 are located on the same central axis. The tooth height of the half-pinion 273 is matched with the tooth height of the external tooth 26. The center of the half-gear 274 and the center of the transmission disk 272 are located on the same central axis. The diameter of the half-gear 274 is 1.5 times the diameter of the half-pinion 273. The half-gear 274 is located above the half-pinion 273. The tooth height of the half-gear 274 is matched with the tooth height of the arc-shaped rack 28. This design realizes the change of the rotational speed of the rotating ring 22 through the relationship between the rotational speed and diameter of the gear transmission. First, the half-pinion 273 drives the rotating ring 22 to rotate slightly to avoid misoperation. Then, the half-gear 274 accelerates the rotational speed of the rotating ring 22 to realize the rapid adjustment of the quarter-plate 25. This not only ensures the safety of operation but also improves the work efficiency.

[0034] As a further implementation of this solution, a filter element 5 is embedded in the bottom of the inner side of the lower card box 1, and a grooved cover plate 6 is fitted in the top of the inner side of the lower card box 1. The interior of the air inlet cavity 4 is connected to the interior of the lower card box 1 through the interior of the grooved cover plate 6. The grooved cover plate 6 protects the top of the protective component 2 and ensures the orderly flow of air inside the filter component.

[0035] Workflow: The dimensions of the lower card box 1 and the upper card box 3 are customized according to the actual dimensions of the air outlet window of the cleanroom air conditioning system. The upper card box 3 is aligned with the air outlet window and inserted into its inner side to fix the air outlet section filter assembly. The filter element 5 is then embedded into the bottom of the inner side of the lower card box 1. Since the quarter-plate 25 is closed at this time, the operator rotates the operating knob 29. The operating knob 29 drives the drive shaft 271 to rotate. Because the drive shaft 271 and the transmission disc 272 are coaxial, the transmission disc 272 rotates synchronously with the drive shaft 271. This, in turn, drives the half-gear 273 and the second... The large gear 274 rotates together with the small gear 273, which first meshes with the external teeth 26 on one side of the rotating ring 22. As the small gear 273 rotates, it drives the rotating ring 22 to rotate slightly. This slight rotation design prevents the rotating ring 22 from rotating significantly due to accidental rotation of the operating knob 29, thus effectively preventing premature opening of the quarter-plate 25 and reducing the risk of contaminating the inside of the lower card box 1. As the external teeth 26 gradually move away from the small gear 273, the large gear 274 meshes with the arc-shaped rack 28. Since the diameter of the large gear 274 is half... The diameter of the small gear 273 is 1.5 times that of the arc-shaped rack 28, and the diameter of the arc-shaped rack 28 is smaller than that of the rotating ring 22. When the half-large gear 274 meshes with the arc-shaped rack 28, according to the principle in gear transmission that the large gear drives the small gear at a faster speed, and the small gear drives the large gear at a slower speed, the half-large gear 274 relative to the arc-shaped rack 28 will cause the rotating ring 22 to rotate faster. The rotation of the rotating ring 22 drives the four sets of internal tooth grooves 23 on the inner side to rotate synchronously. Since the internal tooth grooves 23 mesh with the linkage gear 24, they drive the linkage gear 24 to rotate around the connecting shaft, which in turn drives the quarter-plate 25 to rotate, realizing the quarter-plate rotation. The adjustment of the quarter baffle 25 from closed to open allows air to enter from the air inlet chamber 4, pass through the grooved cover plate 6, and enter the lower cartridge 1. After being filtered by the filter element 5, the air is delivered to the clean room, achieving the air purification function. When the filter assembly needs to be disassembled, the operating knob 29 is turned again to adjust the quarter baffle 25 to the closed state according to the pre-installation procedure. After sealing off the pollutants above, the normal filter assembly disassembly operation can be performed. At this time, because the quarter baffle 25 is closed, foreign objects, dust, and viruses remaining above will not be exposed to the clean room, reducing the risk of contamination.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A filter assembly for the air outlet section of a cleanroom air conditioning system, comprising a lower cartridge (1), characterized in that: The lower card box (1) is fixedly connected to a protective component (2), and the top of the lower card box (1) is fixedly connected to an upper card box (3). An air inlet cavity (4) is opened inside the upper card box (3). The protective component (2) includes a base box (21), a rotating ring (22) is rotatably connected inside the base box (21), four sets of internal tooth grooves (23) are opened on the inner side of the rotating ring (22), a linkage gear (24) is meshed on one side of the internal tooth groove (23), a quarter baffle (25) is fixedly connected to one end of the linkage gear (24), a set of external teeth (26) is fixedly connected to one side of the outer wall of the rotating ring (22), an adjustment mechanism (27) is meshed on one side of the set of external teeth (26), and an arc-shaped rack (28) for cooperating with the adjustment mechanism (27) is fixedly connected to the upper surface of the rotating ring (22). The adjustment mechanism (27) includes a drive shaft (271), which is rotatably disposed on one side inside the base box (21). A transmission disk (272) is fixedly connected to the top of the drive shaft (271). A half-gear (273) is fixedly connected to one side of the transmission disk (272), and a half-gear (274) is fixedly connected to the other side of the transmission disk (272). The pinion (273) meshes with a set of external teeth (26), and the gear (274) meshes with the arc-shaped rack (28).

2. The air outlet section filter assembly of a cleanroom air conditioning system according to claim 1, characterized in that: The four sets of internal tooth grooves (23) are arranged in a circle with the central axis of the rotating ring (22) as the center. The number of the linkage gears (24) corresponds to the number of internal tooth grooves (23). One side of the outer wall of the linkage gear (24) is provided with a tooth groove for meshing with the internal tooth grooves (23). The other side of the linkage gear (24) has an arc-shaped structure. The linkage gear (24) is rotatably connected to the base box (21) through a connecting shaft.

3. The air outlet section filter assembly of a cleanroom air conditioning system according to claim 1, characterized in that: The number of the quarter baffles (25) corresponds to the number of the linkage gears (24). The quarter baffles (25) are located inside the rotating ring (22). The thickness of the quarter baffles (25) is adapted to the thickness of the rotating ring (22). The four quarter baffles (25) together form a complete circle.

4. The air outlet section filter assembly of a cleanroom air conditioning system according to claim 1, characterized in that: The center of the drive shaft (271) and the transmission disk (272) are located on the same central axis. The drive shaft (271) extends to the bottom of the lower card box (1). The drive shaft (271) is rotatably connected to the lower card box (1). An operation knob (29) is fixedly connected to the bottom end of the drive shaft (271).

5. The air outlet section filter assembly of a cleanroom air conditioning system according to claim 1, characterized in that: The center of the half-gear (273) and the center of the transmission disk (272) are located on the same central axis, and the tooth height of the half-gear (273) is matched with the tooth height of the external tooth (26).

6. The air outlet section filter assembly of a cleanroom air conditioning system according to claim 1, characterized in that: The center of the large half gear (274) and the center of the transmission disk (272) are located on the same central axis. The diameter of the large half gear (274) is 1.5 times the diameter of the small half gear (273). The large half gear (274) is located above the small half gear (273). The tooth height of the large half gear (274) is matched with the tooth height of the arc-shaped rack (28).

7. The air outlet section filter assembly of a cleanroom air conditioning system according to claim 1, characterized in that: The bottom of the inner side of the lower card box (1) is fitted with a filter element (5), and the top of the inner side of the lower card box (1) is fitted with a grooved cover plate (6). The interior of the air inlet cavity (4) is connected to the interior of the lower card box (1) through the interior of the grooved cover plate (6).

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