An FFU (Fan Filter Unit) air purifier

Abstract

This utility model discloses an FFU (Fan Filter Unit) air purifier, relating to the field of air purifiers. It includes a filter box and an air chamber fixed to the top of the filter box. A ring-shaped mounting part is welded to the top of the air chamber. Both ends of the mounting part have L-shaped mounting grooves, and a dustproof plate is inserted into the top of the mounting part. A metal elastic piece is welded to one side of the inner wall of the mounting groove, and a receiving groove is formed at the other end of the mounting groove. Magnetic metal connecting parts are fixed to both ends of the dustproof plate, passing through the mounting groove and fitting into the receiving groove. This utility model uses a pressure plate to push a pressure rod downwards to the bottom wall of the mounting groove, and rotates the magnetic metal connecting parts to slide and detach them from the top of the metal elastic piece, facilitating the installation and removal of the dustproof plate and improving the convenience of installing and removing the protective net.

Description

Technical Field

[0001] This utility model relates to the field of air purifiers, specifically an FFU air purifier. Background Technology

[0002] A fan filter unit (FFU) is a self-powered air supply and filtration device. It is a modular terminal air supply device with filtration capabilities. An FFU mainly consists of a fan, a filter, and a control system. The fan generates airflow, drawing air from the environment into the device, purifying it through the filter, and then evenly releasing the clean air back into the environment. The filter is the core component of the FFU; it removes fine particles, dust, bacteria, viruses, and other contaminants from the air, thus providing a clean air environment. FFUs are widely used in many fields and scenarios. In laboratories and medical facilities, maintaining a clean air environment is crucial for the accuracy of experimental results and patient health. FFUs help remove microorganisms and particles from the air, ensuring the cleanliness of laboratory and medical environments. In the electronics manufacturing industry, FFUs are widely used in cleanrooms and dust-free workshops to prevent dust and static electricity from contaminating electronic components. In the biopharmaceutical and food processing industries, FFUs are used to ensure cleanliness during production processes to prevent product contamination. Besides providing a clean air environment, FFUs offer several other advantages. First, their modular design allows for flexible layout and installation as needed, enabling them to adapt to spaces of different sizes and shapes while providing uniform airflow. Second, FFUs are typically designed for low noise, ensuring minimal noise generation during operation and providing a quiet working environment.

[0003] In a fan filter unit (FFU), the fan draws in outside airflow, and a protective screen is installed at the air inlet of the fan to protect the impeller. However, the current fan protective screen is usually installed with screws, which is not convenient to disassemble when the protective screen is damaged or when the impeller needs to be cleaned and maintained. Therefore, we propose a clean fresh air FFU fan. Utility Model Content

[0004] Based on this, the purpose of this utility model is to provide an FFU (Fan Filter Unit) air purifier to solve the technical problem that the current fan protective net is usually installed by screws, which makes it inconvenient to disassemble and assemble the protective net when it is damaged or when the impeller needs to be cleaned and maintained.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an FFU (Fan Filter Unit) air purifier, comprising a filter box and an air box fixed to the top of the filter box. The top of the air box is welded and fixed with a ring-shaped mounting part. Both ends of the mounting part are provided with L-shaped mounting grooves, and a dustproof plate is inserted into the top of the mounting part. A metal elastic sheet is welded and fixed to one side of the inner wall of the mounting groove, and a receiving groove is provided at the other end of the mounting groove. Both ends of the dustproof plate are fixed with magnetic metal connecting parts, which pass through the mounting groove and are inserted into the receiving groove.

[0006] The present invention is further configured such that a fan body is embedded in the air box, and the bottom end of the air box is fixed to the filter box by rivets.

[0007] The present invention is further provided that filter screens are embedded and welded in the grooves opened at both ends of the dustproof plate, and a handle is welded and fixed at the center of the top surface of the dustproof plate.

[0008] The present invention is further configured such that a magnetic sheet is bonded and fixed to the inner wall of the receiving groove, and the magnetic sheet is attracted and fixed to the magnetic metal connecting part.

[0009] The present invention is further configured such that a through hole is provided at the top of the mounting part, and the bottom end of the through hole is connected to the mounting groove.

[0010] The present invention is further configured such that a pressure rod is fixedly installed at the top of one end of the metal elastic sheet, and the other end of the metal elastic sheet has an L-shaped structure and is tightly connected to the side of the magnetic metal plate away from the magnet sheet.

[0011] The present invention is further configured such that the pressure rod is slidably inserted into the through hole, and the top end of the pressure rod is integrally formed with a pressure plate through the through hole.

[0012] In summary, this utility model has the following beneficial effects: By fixing an installation part at the top of the filter box, when installing the dustproof plate, the handle is held to insert the magnetic metal connecting parts at both ends of the dustproof plate into the installation groove, and the metal elastic piece is squeezed downwards to correspond to the receiving groove. The dustproof plate is then rotated by the handle, causing the magnetic metal connecting parts to fit into the receiving groove. After the metal elastic piece elastically resets, it contacts the side wall of the magnetic metal connecting part, keeping it stable in the receiving groove. When disassembling the dustproof plate, the pressure plate is pushed to squeeze the pressure rod downwards to the bottom wall of the installation groove, and the magnetic metal connecting part is rotated to slide off the top of the metal elastic piece. This facilitates the installation and disassembly of the dustproof plate, improving the convenience of installing and removing the protective net. Attached Figure Description

[0013] Figure 1This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the bellows structure of this utility model; Figure 3 This is a schematic diagram of the dustproof plate structure of this utility model; Figure 4 This is a cross-sectional structural diagram of the mounting part of this utility model.

[0014] In the diagram: 1. Filter box; 2. Air box; 3. Dustproof plate; 4. Fan body; 5. Mounting part; 6. Filter screen; 7. Handle; 8. Magnetic metal connection part; 9. Pressure plate; 10. Through hole; 11. Pressure rod; 12. Mounting groove; 13. Metal elastic sheet; 14. Receiving groove; 15. Magnet sheet. Detailed Implementation

[0015] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0016] A type of FFU (Fan Filter Unit), such as Figure 1-4 As shown, the system includes a filter box 1 and an air box 2 fixed to the top of the filter box 1. A ring-shaped mounting part 5 is welded to the top of the air box 2. Both ends of the mounting part 5 have L-shaped mounting grooves 12, and a dustproof plate 3 is inserted into the top of the mounting part 5. A metal elastic piece 13 is welded to one side of the inner wall of the mounting groove 12, and a receiving groove 14 is provided at the other end of the mounting groove 12. Magnetic metal connecting parts 8 are fixed to both ends of the dustproof plate 3. The magnetic metal connecting parts 8 pass through the mounting groove 12 and are inserted into the receiving groove 14. When installing the dustproof plate 3, the handle 7 is held to insert the magnetic metal connecting parts 8 at both ends of the dustproof plate 3 into the mounting groove 12. The metal elastic piece 13 is pressed down to correspond with the receiving groove 14, and the dustproof plate 3 is rotated by the handle 7. During the rotation of the dustproof plate 3, the magnetic metal connecting part 8 is inserted into the receiving groove 14. After the metal elastic piece 13 elastically returns to its original position, it contacts the side wall of the magnetic metal connecting part 8, so that the magnetic metal connecting part 8 remains stable in the receiving groove 14. When disassembling the dustproof plate 3, the pressure plate 9 is pushed so that the pressure rod 11 presses the metal elastic piece 13 down to the bottom wall of the installation groove 12. The magnetic metal connecting part 8 is rotated so that it slides off the top of the metal elastic piece 13, which facilitates the installation and disassembly of the dustproof plate 3 and improves the convenience of installing and disassembling the protective net.

[0017] The blower body 4 is embedded in the blower box 2, and the bottom of the blower box 2 is fixed to the filter box 1 by rivets. The filter screen 6 is embedded and welded in the grooves opened at both ends of the dustproof plate 3. The handle 7 is welded and fixed at the center of the top surface of the dustproof plate 3. The inner wall of the receiving groove 14 is glued and fixed. The magnet 15 is attracted and fixed to the magnetic metal connection part 8. The top of the mounting part 5 is provided with a through hole 10. The bottom of the through hole 10 is connected to the mounting groove 12. After the metal elastic piece 13 is elastically reset, it contacts the side wall of the magnetic metal connection part 8, so that the magnetic metal connection part 8 remains stable in the receiving groove 14.

[0018] Furthermore, a pressure rod 11 is fixedly installed on the top of one end of the metal elastic sheet 13, and the other end of the metal elastic sheet 13 is in an L-shaped structure and tightly connected to the side of the magnetic metal plate away from the magnet sheet 15. The pressure rod 11 is slidably inserted into the through hole 10, and the top of the pressure rod 11 is integrally formed with a pressure plate 9 through the through hole 10. Pushing the pressure plate 9 causes the pressure rod 11 to press the metal elastic sheet 13 downward to the bottom wall of the mounting groove 12. Rotating the magnetic metal connecting part 8 causes it to slide off the top of the metal elastic sheet 13.

[0019] The working principle of this utility model is as follows: When installing the dustproof plate 3, hold the handle 7 to insert the magnetic metal connecting parts 8 at both ends of the dustproof plate 3 into the installation groove 12, and squeeze the metal elastic piece 13 downward to move it to correspond with the receiving groove 14. The handle 7 drives the dustproof plate 3 to rotate. During the rotation, the magnetic metal connecting parts 8 fit into the receiving groove 14. After the metal elastic piece 13 elastically resets, it contacts the side wall of the magnetic metal connecting part 8, keeping the magnetic metal connecting part 8 stable in the receiving groove 14. 3. When disassembling, push the pressure plate 9 to make the pressure rod 11 squeeze the metal elastic piece 13 downward to the bottom wall of the mounting groove 12. The top of the metal elastic piece 13 is at the same level as the bottom wall of the receiving groove 14. Hold the handle 7 to drive the dustproof plate 3 to rotate and the magnetic metal connection part 8 to rotate. Rotate the magnetic metal connection part 8 to make it slide from the top surface of the metal elastic piece 13 to the top of the mounting groove 12, and move upward in the mounting groove 12 to disassemble the dustproof plate 3. This facilitates the installation and disassembly of the dustproof plate 3 and improves the convenience of disassembling and assembling the protective net.

[0020] The installation method, internal structure and working method of filter box 1 and air box 2 are existing technologies and will not be described in detail here.

[0021] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A FFU clean air machine comprising a filter box (1) and a fan box (2) fixed on the top end of the filter box (1), characterized in that: The top of the bellows (2) is welded and fixed with an annular mounting part (5). Both ends of the mounting part (5) are provided with L-shaped mounting grooves (12). The top of the mounting part (5) is fitted with a dustproof plate (3). A metal elastic piece (13) is welded and fixed on one side of the inner wall of the mounting groove (12). The other end of the mounting groove (12) is provided with a receiving groove (14). Both ends of the dustproof plate (3) are fixed with magnetic metal connecting parts (8). The magnetic metal connecting parts (8) pass through the mounting groove (12) and fit into the receiving groove (14).

2. A FFU according to claim 1, characterized in that: The blower body (4) is embedded in the blower box (2), and the bottom of the blower box (2) is fixed to the filter box (1) by rivets.

3. A FFU according to claim 1, characterized in that: The dustproof plate (3) has a filter screen (6) embedded and welded in the grooves at both ends, and a handle (7) is welded and fixed at the center of the top surface of the dustproof plate (3).

4. A FFU according to claim 1, characterized in that: A magnet piece (15) is bonded and fixed to the inner wall of the receiving groove (14), and the magnet piece (15) is attracted and fixed to the magnetic metal connection part (8).

5. A FFU according to claim 4, wherein: The top of the mounting part (5) is provided with a through hole (10), and the bottom end of the through hole (10) is connected to the mounting groove (12).

6. A FFU according to claim 5 wherein: A pressure rod (11) is fixedly installed on the top of one end of the metal elastic sheet (13), and the other end of the metal elastic sheet (13) is in an L-shaped structure and is tightly connected to the side of the magnetic metal plate away from the magnet sheet (15).

7. A FFU according to claim 6, wherein: The pressure rod (11) is slidably inserted into the through hole (10), and the top end of the pressure rod (11) is integrally formed with a pressure plate (9) through the through hole (10).

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