Ultrathin FFU unit

Abstract

The utility model provides an ultrathin FFU unit which comprises an FFU box body and an ultrathin backward-tilting centrifugal fan, the ultrathin backward-tilting centrifugal fan is installed in the FFU box body, an efficient ultrathin filter is installed at the bottom of the FFU box body, an ultrathin air guide ring with a protective net is installed in the middle of the top end of the FFU box body and matched with the ultrathin backward-tilting centrifugal fan, and the ultrathin air guide ring with the protective net is installed in the middle of the top end of the FFU box body. The edge of the ultra-thin backward-tilting centrifugal fan is provided with a backward-tilting ultra-thin impeller attached to the ultra-thin air guide ring with the protective net, and the edge of the ultra-thin air guide ring with the protective net is provided with an arc air guide plate matched with the ultra-thin backward-tilting centrifugal fan. The fan in the unit is high in air supply efficiency, air pressure diffusion is uniform, and the air speed of the air outlet face is average and stable; the structural strength of the FFU box body is high, vibration caused by high-speed rotation of the fan is reduced, and noise is effectively reduced; the structure for connecting the FFU box body and the filter is good in sealing effect, thin in thickness and suitable for being used in equipment and space with height limitation.

Description

Technical Field

[0001] The utility model relates to the field of purification equipment, in particular to an ultra-thin FFU unit. Background Art

[0002] FFU stands for FanFilterUnit in English, and its Chinese name is fan filter unit or fan filter unit. It is a self-powered terminal air purification equipment composed of a centrifugal fan and a filter (high efficiency filter (HEPA filter) or ultra high efficiency filter (ULPA filter)). It has the advantages of long working time, low noise, maintenance-free, small vibration, stepless speed regulation, uniform wind speed, easy installation, etc. It is widely used in clean rooms, clean production lines, assembled clean rooms and other applications.

[0003] The air duct structure of the FFU purification unit is an important structure related to the air supply effect of the FFU. The common FFU purification units on the market currently ignore the design of the air duct structure, resulting in poor air supply effect and uneven wind speed of the FFU, which in turn leads to shortcomings such as high noise during FFU operation, high failure rate, and short filter life.

[0004] Therefore, it is necessary to design an ultra-thin FFU unit. Utility Model Content

[0005] In view of the technical defects existing in the background technology, the utility model proposes an ultra-thin FFU unit, which solves the above technical problems and meets the actual needs. The specific technical solution is as follows:

[0006] An ultra-thin FFU unit comprises an FFU housing and an ultra-thin backward-inclined centrifugal fan, wherein the ultra-thin backward-inclined centrifugal fan is installed inside the FFU housing, a high-efficiency ultra-thin filter is installed at the bottom of the FFU housing, an ultra-thin air guide ring with a protective net matched with the ultra-thin backward-inclined centrifugal fan is installed in the middle of the top of the FFU housing, a backward-inclined ultra-thin impeller fitted with the ultra-thin air guide ring with a protective net is arranged at the edge of the ultra-thin backward-inclined centrifugal fan, and an arc air guide plate matched with the ultra-thin backward-inclined centrifugal fan is arranged at the edge of the ultra-thin air guide ring with a protective net.

[0007] Furthermore, a sinking fan mounting pad is provided at the bottom of the ultra-thin backward-inclined centrifugal fan, and the fan mounting pad is fixed inside the FFU box and cooperates with the arc air guide plate.

[0008] Furthermore, a fan controller is disposed on the upper surface of the FFU box, and a power connector and a communication interface are respectively disposed on the top and bottom of the fan controller.

[0009] Furthermore, the inner wall of the FFU box is provided with two V-shaped reinforcing ribs.

[0010] Furthermore, foldable handles are provided on both sides of the upper surface of the FFU box.

[0011] Furthermore, flanges are provided on both sides of the FFU box, and a plurality of connection holes are provided on the flanges. Rams are provided around the high-efficiency ultra-thin filter, and the rams are connected to the connection holes by screws.

[0012] Furthermore, the ultra-thin backward-inclined centrifugal fan adopts an outer rotor motor.

[0013] Furthermore, the air inlet and outlet ends of the high-efficiency ultra-thin filter are both provided with sealing strips.

[0014] Compared with the prior art, the ultra-thin FFU unit provided by the utility model has the following beneficial effects:

[0015] The utility model is an ultra-thin FFU unit. The outer rotor motor, two arc air guide plates and a sunken fan installation pad are used to form a special air inlet duct structure. The fan has high air supply efficiency, uniform wind pressure diffusion and stable average wind speed on the air outlet surface. By setting V-shaped reinforcement ribs, the structural strength of the FFU box is high and the vibration caused by the high-speed rotation of the fan is reduced, effectively reducing noise. The structural sealing effect of the connection between the FFU box and the filter is good through screws and sealing strips. The thin thickness can be used in equipment and spaces with height restrictions. The light weight is easy to install and can be installed horizontally or vertically. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a top view of an ultra-thin FFU unit in the utility model.

[0017] Figure 2 It is a side sectional view of an ultra-thin FFU unit in the utility model.

[0018] Figure 3 It is a schematic diagram of the connection between the FFU box and the high-efficiency ultra-thin filter in the utility model.

[0019] Among them, 1. FFU box, 2. Ultra-thin backward-inclined centrifugal fan, 3. High-efficiency ultra-thin filter, 4. Ultra-thin air guide ring with protective net, 5. Backward-inclined ultra-thin impeller, 6. Arc air guide plate, 7. Fan mounting pad, 8. Fan controller, 9. Power connector, 10. Communication interface, 11. V-shaped reinforcement rib, 12. Handle, 13. Connection hole, 14. Ram, 15. Screws, 16. Sealing strip. DETAILED DESCRIPTION

[0020] In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "middle", "inside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood by specific circumstances.

[0021] The implementation methods of the present invention are described below in conjunction with the accompanying drawings and relevant embodiments. The implementation methods of the present invention are not limited to the following embodiments, and the present invention involves relevant necessary components in this technical field, which should be regarded as common knowledge in this technical field and can be known and mastered by technical personnel in this technical field.

[0022] See also Figure 1-3 , an ultra-thin FFU unit with filtering effect, the unit comprises an FFU box 1 and an ultra-thin backward-inclined centrifugal fan 2, the ultra-thin backward-inclined centrifugal fan 2 is installed inside the FFU box 1, a high-efficiency ultra-thin filter 3 is installed at the bottom of the FFU box 1, an ultra-thin belt guard air guide ring 4 matched with the ultra-thin backward-inclined centrifugal fan 2 is installed in the middle of the top of the FFU box 1, the ultra-thin belt guard air guide ring 4 can make the inhaled air evenly driven by the ultra-thin backward-inclined centrifugal fan 2, the edge of the ultra-thin backward-inclined centrifugal fan 2 is provided with a backward-inclined ultra-thin impeller 5 fitted with the ultra-thin belt guard air guide ring 4, the backward-inclined ultra-thin impeller 5 has the characteristics of compact structure, large air volume, small vibration and low noise. The ultra-thin air guide ring with protective net 4 can fit the backward-inclined ultra-thin impeller 5 well and effectively play a protective role, preventing large debris in the external environment from damaging the high-speed rotating fan impeller. The edge of the ultra-thin air guide ring with protective net 4 is provided with an arc air guide plate 6 that cooperates with the ultra-thin backward-inclined centrifugal fan 2. The arc air guide plate 6 and the backward-inclined centrifugal fan form a special air inlet duct structure, and the internal downwind guide structure design makes the wind pressure diffuse evenly and the wind speed on the wind outlet surface average and stable.

[0023] In one embodiment of the utility model, a sinking fan mounting pad 7 is provided at the bottom of the ultra-thin backward inclined centrifugal fan 2 , and the fan mounting pad 7 is fixed inside the FFU box 1 and cooperates with the arc air guide plate 6 .

[0024] In one embodiment of the utility model, a fan controller 8 is provided on the upper surface of the FFU box 1, and a power connector 9 and a communication interface 10 are respectively provided on the top and bottom of the fan controller 8. The fan controller 8 can communicate with external devices, control the switch of the fan and the speed of the fan, and can be connected with multiple ultra-thin FFU units through network cables to form a group control system.

[0025] In one embodiment of the utility model, two V-shaped reinforcing ribs 11 are provided on the inner wall of the FFU box 1, which enhances the structural strength of the FFU box 1 and can achieve the effect of shock absorption and noise reduction.

[0026] In one embodiment of the utility model, both sides of the upper surface of the FFU box 1 are provided with foldable handles 12. The foldable handles 12 effectively reduce the height of the entire FFU box 1 and facilitate the movement of the FFU box 1.

[0027] In one embodiment of the utility model, flanges are provided on both sides of the FFU box 1, and a plurality of connection holes 13 are provided on the flanges. Rams 14 are provided around the high-efficiency ultra-thin filter 3, and the rams 14 are connected to the connection holes 13 by screws 15.

[0028] In one embodiment of the utility model, the ultra-thin backward-inclined centrifugal fan 2 adopts an outer rotor motor. The outer rotor motor has the characteristics of ventilation, heat dissipation and self-cooling, and the motor temperature rise is low, thereby extending the life and reliability of the fan.

[0029] In one embodiment of the utility model, the air inlet end and the air outlet end of the high-efficiency ultra-thin filter 3 are both provided with sealing strips 16, and the air inlet surface and the air outlet surface of the high-efficiency ultra-thin filter 3 are provided with sealing strips 16. The filter has good sealing effect and thin thickness, and can be suitable for use in equipment and spaces with height restrictions.

[0030] The utility model is an ultra-thin FFU unit. The outer rotor motor, two arc air guide plates 6, and a sunken fan installation pad 7 are used to form a special air inlet duct structure. The fan has high air supply efficiency, uniform wind pressure diffusion, and stable average wind speed on the air outlet surface. By setting V-shaped reinforcing ribs 11, the structural strength of the FFU box 1 is high and the vibration caused by the high-speed rotation of the fan is reduced, effectively reducing noise. The structural sealing effect of the connection between the FFU box 1 and the filter is good through screws 15 and sealing strips 16. The thin thickness can be used in equipment and spaces with height restrictions. It is light in weight and easy to install. It can be installed horizontally or vertically.

[0031] The above is only a preferred embodiment of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An ultra-thin FFU unit, characterized in that: The invention comprises an FFU housing (1) and an ultra-thin backward-inclined centrifugal fan (2), wherein the ultra-thin backward-inclined centrifugal fan (2) is installed inside the FFU housing (1), a high-efficiency ultra-thin filter (3) is installed at the bottom of the FFU housing (1), an ultra-thin air guide ring (4) with a protective net matched with the ultra-thin backward-inclined centrifugal fan (2) is installed at the middle of the top of the FFU housing (1), a backward-inclined ultra-thin impeller (5) matched with the ultra-thin air guide ring with a protective net (4) is arranged at the edge of the ultra-thin backward-inclined centrifugal fan (2), and an arc air guide plate (6) matched with the ultra-thin backward-inclined centrifugal fan (2) is arranged at the edge of the ultra-thin air guide ring with a protective net (4).

2. The ultra-thin FFU unit according to claim 1, characterized in that: A sinking fan mounting pad (7) is provided at the bottom of the ultra-thin backward-inclined centrifugal fan (2); the fan mounting pad (7) is fixed inside the FFU housing (1) and cooperates with the arc air guide plate (6).

3. The ultra-thin FFU unit according to claim 1, characterized in that: A fan controller (8) is arranged on the upper surface of the FFU housing (1), and a power connector (9) and a communication interface (10) are respectively arranged on the top and bottom of the fan controller (8).

4. The ultra-thin FFU unit according to claim 1, characterized in that: The inner wall of the FFU box (1) is provided with two V-shaped reinforcing ribs (11).

5. The ultra-thin FFU unit according to claim 1, characterized in that: Foldable handles (12) are provided on both sides of the upper surface of the FFU box (1).

6. The ultra-thin FFU unit according to claim 1, characterized in that: The FFU box (1) is provided with flanges on both sides, and a plurality of connection holes (13) are provided on the flanges. A ram (14) is provided around the high-efficiency ultra-thin filter (3), and the ram (14) is connected to the connection holes (13) via screws (15).

7. The ultra-thin FFU unit according to claim 1, characterized in that: The ultra-thin backward-inclined centrifugal fan (2) adopts an outer rotor motor.

8. The ultra-thin FFU unit according to claim 1, characterized in that: The air inlet end and the air outlet end of the high-efficiency ultra-thin filter (3) are both provided with sealing strips (16).

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