Fan filter unit convenient for air purification

Abstract

The utility model discloses a fan filter unit convenient for air purification, which comprises a first shell, a fan body, a second shell, a plurality of packing buckle components, a filter screen, a static pressure layer and a diffuser plate, the lower surface of the first shell is fixedly connected with the second shell, and the filter screen is fixedly connected in the second shell through the plurality of packing buckle components. A fan body is arranged at the top end of the filter screen, the fan body is fixedly connected into the first shell, a static pressure layer is arranged at the bottom end of the filter screen, a diffuser plate is fixedly connected to the lower surface of the static pressure layer, and the diffuser plate is clamped to the second shell; the filter screen is mounted in the second shell by matching the packing buckle component with the second bent plate, so that the filter screen can be directly disassembled from the bottom of the second shell, and the packing buckle component is easy to disassemble and assemble, so that the filter screen is simpler and more convenient to replace; and the uniformity of the air outlet speed can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of clean rooms, in particular to a fan filter unit which is convenient for air purification. Background Art

[0002] A clean room is a special space where parameters such as air cleanliness, temperature, humidity, and pressure are strictly controlled. Currently, the air purification equipment in clean rooms mainly consists of high-efficiency air supply vents and fan filter units. The high-efficiency air supply vents only have filters, but no power mechanisms such as air supply fans. When the entire system is in operation, a centralized air supply system must be provided, which results in poor system flexibility, high energy consumption, large space occupation, and difficulty in sealing. Although the fan filter unit overcomes the above shortcomings, due to its own structural problems, the high-efficiency filter must usually be removed from above the ceiling for replacement. For some places with low ceiling space, disassembly is more troublesome. Moreover, since the air supply system of the fan filter unit directly discharges air through the high-efficiency filter without flow balancing, the wind speed uniformity is also relatively poor. Therefore, a fan filter unit that is convenient for air purification is proposed. Utility Model Content

[0003] The purpose of the utility model is to provide a fan filter unit that is convenient for air purification, so as to solve the problems raised in the above background technology.

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions: a fan filter unit that is convenient for air purification, comprising a first shell, a fan body, a second shell, a tightening fastener assembly, a filter screen, a static pressure layer and a diffuser plate, the lower surface of the first shell is fixedly connected to the second shell, and the filter screen is fixedly connected to the second shell through multiple tightening fastener assemblies, the fan body is provided at the top of the filter screen, and the fan body is fixedly connected to the first shell, the bottom end of the filter screen is provided with a static pressure layer, the lower surface of the static pressure layer is fixedly connected to the diffuser plate, and the diffuser plate is clamped on the second shell.

[0005] Preferably, a first bending plate is provided on the lower surface of the first shell, a second bending plate is provided on the upper surface of the second shell, and the second bending plate is fixedly connected to the first bending plate, the filter screen is provided at the bottom end of the second bending plate, and the clamping assembly is installed on the second bending plate.

[0006] Preferably, the tightening buckle assembly includes a connecting rod, a rivet, a first external thread, a first nut, a second external thread, a pressure block and a second nut. A through hole is provided on the second bending plate, and the rivet is fixedly connected to the through hole. The first nut is fixedly connected to the lower surface of the rivet. The connecting rod is threadedly connected to the first nut. The pressure block is slidably connected to the connecting rod, and the pressure block is arranged at the bottom end of the filter screen. The second nut is provided at the bottom end of the pressure block, and the second nut is threadedly connected to the connecting rod.

[0007] Preferably, one end of the connecting rod is provided with a first external thread, and the first nut is threadedly connected to the first external thread, and the other end of the connecting rod is provided with a second external thread, and the second nut is threadedly connected to the second external thread.

[0008] Preferably, a fixing frame is fixedly connected inside the first shell, and the fan body is fixedly connected to the fixing frame.

[0009] Preferably, a plurality of lifting ears are evenly distributed on the upper surface of the first shell.

[0010] Preferably, an air inlet pipe is fixed on the first shell, and a flange is fixedly connected to the air inlet pipe.

[0011] The utility model provides a fan filter unit that is convenient for air purification, and its advantages are: the utility model utilizes a clamping fastener assembly in conjunction with a second bent plate to install the filter screen in the second shell, so that the filter screen can be directly removed from the bottom of the second shell, and the clamping fastener assembly is easy to disassemble and assemble, so the replacement of the filter screen is simpler and more convenient. By adding a static pressure layer and a diffuser plate at the bottom of the filter screen, the uniformity of the air outlet wind speed can be effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0013] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the overall main cutaway structure of the present invention;

[0015] Figure 3 for Figure 2 A magnified view of the structure of area A in the middle;

[0016] Figure 4 for Figure 2 A magnified view of the structure of region B in the middle.

[0017] In the figure: 1. First shell; 11. Lifting ear; 12. Air inlet pipe; 13. Flange; 14. Fixing bracket; 15. First bending plate; 2. Fan body; 3. Second shell; 31. Second bending plate; 32. Through hole; 4. Fastening buckle assembly; 41. Connecting rod; 42. Pull rivet; 43. First external thread; 44. First nut; 45. Second external thread; 46. Pressing block; 47. Second nut; 5. Filter; 6. Static pressure layer; 7. Diffuser. DETAILED DESCRIPTION

[0018] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] Please see the attached Figure 1 -Attached Figure 4, the utility model provides an embodiment: a fan filter unit for facilitating air purification, comprising a first shell 1, a fan body 2, a second shell 3, a tightening buckle assembly 4, a filter screen 5, a static pressure layer 6 and a diffuser plate 7. The lower surface of the first shell 1 is fixedly connected to the second shell 3, and the filter screen 5 is fixedly connected to the second shell 3 through a plurality of tightening buckle assemblies 4. The fan body 2 is provided on the top of the filter screen 5, and the fan body 2 is fixedly connected to the first shell 1. The bottom end of the filter screen 5 is provided with a static pressure layer 6, and the lower surface of the static pressure layer 6 is fixedly connected to the diffuser plate 7, and the diffuser plate 7 is snapped onto the second shell 3. When the fan body 2 is started, the airflow enters the first shell 1 through the air inlet pipe 12, and then enters the filter screen 5, and enters the static pressure layer 6 after filtration. , after equalization, it enters the diffuser plate 7 and is sent into the clean room through the backflow hole on the diffuser plate 7. The first shell 1 and the second shell 3 constitute the outer shell part; the lower surface of the first shell 1 is provided with a first bending plate 15, and the upper surface of the second shell 3 is provided with a second bending plate 31, and the second bending plate 31 is fixedly connected to the first bending plate 15, and the filter screen 5 is provided at the top of the second bending plate 31. The tightening buckle assembly 4 is installed on the second bending plate 31, and the first bending plate 15 cooperates with the second bending plate 31 to connect the first shell 1 and the second shell 3, and the second bending plate 31 is used to limit the filter screen 5; the tightening buckle assembly 4 includes a connecting rod 41, a pull nail 42, a first external thread 43, a first nut 44, a second external thread 45, a pressure block 46 and a second screw The mother 47 has a through hole 32 on the second bending plate 31, and the rivet 42 is fixedly connected to the through hole 32. The lower surface of the rivet 42 is fixedly connected to the first nut 44. The first nut 44 is threadedly connected to the connecting rod 41. The connecting rod 41 is slidably connected to a pressure block 46, and the pressure block 46 is arranged at the bottom end of the filter screen 5. A second nut 47 is provided at the bottom end of the pressure block 46, and the second nut 47 is threadedly connected to the connecting rod 41. The rivet 42 is used to install the first nut 44, the first nut 44 is used to install the connecting rod 41, and the connecting rod 41 is used to install the pressure block 46. The pressure block 46 is used to limit the filter screen 5, and the second nut 47 is used to limit the pressure block 46; one end of the connecting rod 41 is provided with a first external thread 43, and the first nut 44 is threadedly connected to On the first external thread 43, the other end of the connecting rod 41 is provided with a second external thread 45, and the second nut 47 is threadedly connected to the second external thread 45, and the connecting rod 41 is threadedly connected to the first nut 44 through the first external thread 43, and the connecting rod 41 is threadedly connected to the second nut 47 through the second external thread 45; a fixing frame 14 is fixedly connected to the first shell 1, and the fan body 2 is fixedly connected to the fixing frame 14, and the fixing frame 14 is used to install the fan body 2; a plurality of lifting ears 11 are evenly distributed on the upper surface of the first shell 1, and the lifting ears 11 are used to realize the lifting of the first shell 1; an air inlet pipe 12 is fixed on the first shell 1, and a flange 13 is fixedly connected to the air inlet pipe 12, and the flange 13 is used to connect the air inlet pipe 12 and the external air duct pipe.

[0020] Working principle: When using the utility model, the fan body 2 is started, the air flow enters the first shell 1 through the air inlet pipe 12, then enters the filter screen 5, enters the static pressure layer 6 after filtration, enters the diffuser plate 7 after equalization, and is sent into the clean room through the backflow hole on the diffuser plate 7; wherein, the lifting ear 11 is used to realize the lifting of the first shell 1, the flange 13 is used to connect the external air duct, the fixing frame 14 is used to install the fan body 2, the first bending plate 15 cooperates with the second bending plate 31 to connect the first shell 1 and the second shell 3, and the second shell 3 is used to Install the filter 5, static pressure layer 6 and diffuser 7. The through hole 32 is used to install the fastening assembly 4. The fastening assembly 4 is used to fix the filter 5 on the second bent plate 31. When the filter 5 needs to be replaced, the clamped diffuser 7 can be removed, the second nut 47 can be loosened and removed, and the pressure block 46 can be removed to remove the filter 5. The pull nail 42 is used to install the first nut 44. The first nut 44 cooperates with the first external thread 43 to install the connecting rod 41. The second nut 47 is used to cooperate with the second external thread 45 to limit the pressure block 46.

[0021] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0022] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, i.e., they may be located in one location or distributed across multiple network units. Some or all of the modules may be selected based on actual needs to achieve the objectives of the present embodiment. Persons of ordinary skill in the art will be able to understand and implement the present invention without inventive effort.

[0023] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A fan filter unit for air purification, comprising a first housing (1), a fan body (2), a second housing (3), a fastening assembly (4), a filter screen (5), a static pressure layer (6) and a diffuser plate (7), characterized in that: The lower surface of the first shell (1) is fixedly connected to the second shell (3), and the filter (5) is fixedly connected to the second shell (3) through a plurality of fastening components (4); a fan body (2) is provided at the top of the filter (5), and the fan body (2) is fixedly connected to the first shell (1); a static pressure layer (6) is provided at the bottom of the filter (5); a diffuser (7) is fixedly connected to the lower surface of the static pressure layer (6), and the diffuser (7) is snap-connected to the second shell (3).

2. A fan filter unit for air purification according to claim 1, characterized in that: A first bending plate (15) is provided on the lower surface of the first shell (1), a second bending plate (31) is provided on the upper surface of the second shell (3), and the second bending plate (31) is fixedly connected to the first bending plate (15), the filter screen (5) is provided at the bottom end of the second bending plate (31), and the fastening assembly (4) is installed on the second bending plate (31).

3. A fan filter unit for air purification according to claim 2, characterized in that: The tightening fastener assembly (4) includes a connecting rod (41), a rivet (42), a first external thread (43), a first nut (44), a second external thread (45), a pressure block (46) and a second nut (47); a through hole (32) is provided on the second bending plate (31), and the rivet (42) is fixedly connected to the through hole (32); a first nut (44) is fixedly connected to the lower surface of the rivet (42); a connecting rod (41) is threadedly connected to the first nut (44); a pressure block (46) is slidably connected to the connecting rod (41); the pressure block (46) is arranged at the bottom end of the filter screen (5); a second nut (47) is arranged at the bottom end of the pressure block (46), and the second nut (47) is threadedly connected to the connecting rod (41).

4. A fan filter unit for air purification according to claim 3, characterized in that: One end of the connecting rod (41) is provided with a first external thread (43), and a first nut (44) is threadedly connected to the first external thread (43); the other end of the connecting rod (41) is provided with a second external thread (45), and a second nut (47) is threadedly connected to the second external thread (45).

5. The fan filter unit for air purification according to claim 1, characterized in that: A fixing frame (14) is fixedly connected inside the first shell (1), and the fan body (2) is fixedly connected to the fixing frame (14).

6. A fan filter unit for air purification according to claim 5, characterized in that: A plurality of lifting ears (11) are evenly distributed on the upper surface of the first shell (1).

7. A fan filter unit for air purification according to claim 6, characterized in that: An air inlet pipe (12) is connected and fixed to the first shell (1), and a flange (13) is fixedly connected to the air inlet pipe (12).

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