Variable air volume ffu air supply unit for clean rooms

Abstract

The utility model discloses a variable air volume FFU air supply unit for clean room. Variable air volume FFU air supply unit for clean room, include: air bellow and the installation frame of air bellow one side, the air bellow includes the box, install the air inlet box for the air inlet of box one side, open the air inlet on the air inlet box, the air inlet is by the adjustment component again on it moves and adjusts its opening size, and the adjustment component is by drive component drive, the installation frame includes the frame body, and the filter core can be detachably installed on the frame body, and the frame body is hinged with the box. The variable air volume FFU air supply unit for clean room provided by the utility model realizes the control to the air intake of box through the setting baffle, thereby according to the actual need to adjust the size of the air output of device.

Description

Technical Field

[0001] This utility model relates to the field of air purification equipment technology, and in particular to a variable air volume FFU air supply unit for clean rooms. Background Technology

[0002] An FFU (Fan Filter Unit) is a device used for air filtration. It is a self-powered, modular terminal air supply unit with filtration capabilities. The FFU draws in air using an internal fan (motor + impeller), which then passes through a high-efficiency filter (such as a HEPA or ULPA filter) to remove large particles of dust, bacteria, viruses, and other pollutants. Finally, the clean air is delivered at a constant speed, providing high-quality clean air for specific environments.

[0003] Existing technology discloses an ultra-quiet FFU (Fan Filter Unit), comprising a fan filter unit body, an outer frame mounted on the outside of the fan filter unit body, a top cover plate fixedly mounted on the upper end of the outer frame, a guide ring fixing plate mounted on the upper middle part of the fan filter unit body, an air guide ring mounted inside the guide ring fixing plate, an air inlet pipe mounted on the middle of the bottom surface of the fan filter unit body, a filter mechanism fixedly connected to the end of the air inlet pipe opposite to the fan filter unit body, fixing plates symmetrically fixedly mounted on both sides of the bottom of the fan filter unit body, a motor mounting bracket mounted on the middle bottom of the fan filter unit body, a motor mounted inside the motor mounting bracket, and a first sound-absorbing cotton inlaid in the upper interior of the fan filter unit body. This invention can effectively reduce noise during use and facilitates quick and simple filter replacement.

[0004] The air inlet of the above-mentioned device has a fixed shape and its size cannot be adjusted, so the air intake cannot be controlled during use.

[0005] Therefore, it is necessary to provide a variable air volume FFU air supply unit for cleanrooms to solve the above-mentioned technical problems. Utility Model Content

[0006] In view of the above situation and to overcome the defects of the existing technology, this utility model provides a variable air volume FFU air supply unit for clean rooms that can control the air intake volume, thereby adjusting the air output volume.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A variable air volume FFU supply unit for cleanrooms includes: an air box and a mounting frame located on one side of the air box; The air box includes a box body, an air inlet box for air intake is installed on one side of the box body, an air inlet is opened on the air inlet box, and the air inlet is adjusted by an adjustment component that moves on it and adjusts its opening size. The adjustment component is driven by a drive component. The mounting frame includes a frame body on which a filter element can be detachably mounted; The frame is hinged to the box.

[0008] Preferably, the adjusting component includes a baffle with ventilation holes, and the baffle is attached to the air inlet box and can slide relative to it.

[0009] Preferably, the drive assembly includes a motor, the output end of which is connected to a lead screw, one end of which is threadedly connected to a drive rod, and a sliding sleeve is slidably installed around the drive rod.

[0010] Preferably, the outer wall of the drive rod has ribs, which are adapted to the grooves on the inner wall of the sliding sleeve, and the ribs slide in the grooves.

[0011] Preferably, a clamping frame is installed on the frame, and the filter element is located between the frame and the clamping frame.

[0012] Preferably, the frame and the clamping frame are connected by bolts.

[0013] Compared with the prior art, the present invention has the following beneficial effects: (1) This utility model controls the air intake of the box by setting a baffle, thereby adjusting the air output of the device according to actual needs; (2) This utility model provides a mounting bracket for the filter element by setting an installation frame, and the detachable installation method facilitates the replacement and maintenance of the filter element. Attached Figure Description

[0014] Figure 1 A schematic diagram of the structure of the variable air volume FFU air supply unit for cleanrooms provided by this utility model; Figure 2 A schematic diagram of the structure of the variable air volume FFU air supply unit for cleanrooms provided by this utility model; Figure 3 A schematic diagram of the structure of the variable air volume FFU air supply unit for cleanrooms provided by this utility model; Figure 4 This is a schematic diagram of the structure of the variable air volume FFU air supply unit for cleanrooms provided by this utility model.

[0015] The corresponding names of the reference numerals in the attached drawings are as follows: 10, bellows; 11, housing; 12, air inlet box; 121, air inlet; 13, baffle; 131, ventilation hole; 14, motor; 141, lead screw; 142, drive rod; 143, rib; 144, sliding sleeve; 20, mounting frame; 21, frame; 22, clamping frame; 23, bolt. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments. The embodiments of the present invention include, but are not limited to, the following embodiments.

[0017] First embodiment: like Figure 1 As shown, the variable air volume FFU air supply unit for cleanrooms provided by this utility model includes: an air box 10, which is a power component for driving outside air into the device; and a mounting frame 20 on one side of the air box 10, which is a component for mounting the filter element.

[0018] Specifically, such as Figure 2 As shown, the bellows 10 is rectangular in shape, with the main body being a box 11. One side of the box 11 is open, and the other side is integrally formed and connected to the air inlet box 12. The air inlet box 12 is also a rectangular shell structure, with multiple rectangular strip-shaped air inlets 121 vertically opened on its back. A baffle 13 is installed on the surface of the air inlet box 12 with the air inlets 121. The surface of the baffle 13 also has ventilation holes 131 of the same specifications as the air inlets 121, and the two are centered on each other. Horizontal drive rods 142 are welded and fixed to the upper and lower sides of the baffle 13. Correspondingly, sliding sleeves 144 of the same specifications as the drive rods 142 are welded and fixed to the back of the air inlet box 12. The sliding sleeves 144 are located on the left and right sides of the drive rods 142 near their ends. Figure 4 As shown, the outer wall of the drive rod 142 has a strip-shaped protrusion, which is a rib 143. The rib 143 is fixedly connected to the drive rod 142. The inner wall of the sliding sleeve 144 has a groove for accommodating the rib 143. The rib 143 and the drive rod 142 slide in the sliding sleeve 144. At the same time, the presence of the rib 143 restricts the drive rod 142 from rotating.

[0019] On the other hand, such as Figure 4 As shown, a threaded hole is opened in the core of the left end of the drive rod 142, and a lead screw 141 is fixedly installed at the output end of the motor 14, which is fixedly installed on the side wall of the air inlet box 12. The lead screw 141 is adapted to the threaded hole on the drive rod 142. After the motor 14 drives the lead screw 141 to rotate, the lead screw 141 can drive the drive rod 142 to move left and right along the axial direction for a certain distance. In turn, the drive rod 142 drives the baffle 13 to move left and right.

[0020] In use, the motor 14 is started first, and the motor 14 drives the lead screw 141 to rotate. Then the lead screw 141 pushes the drive rod 142 and the baffle 13 fixed on the drive rod 142 to move left and right in the horizontal direction. When the ventilation hole 131 on the baffle 13 overlaps with the air inlet 121 on the air inlet box 12, the air intake is the largest. As the air inlet 121 and the ventilation hole 131 are staggered, the channel for air flow between them becomes smaller, so the air intake of the device decreases.

[0021] The air intake of the housing 11 is controlled by setting baffle 13, thereby adjusting the air output of the device according to actual needs.

[0022] Second embodiment: like Figure 1 As shown, a frame 21 is hinged to the right side of the housing 11. The hinge point is on the upper part of both the housing 11 and the frame 21. The frame 21 is a rectangular structure, the same size as the housing 11. A locking structure is provided at the lower end of the housing 11 and the frame 21 for connecting or disconnecting the two (not shown in the figure, but note that this part is consistent with existing technology). The shape of the frame 21 is as follows... Figure 1 As shown, the right side wall of the frame 21 has an edge that extends vertically and inward. A clamping frame 22 is provided on the inner wall of the frame 21, which contacts the inner wall. Threaded holes of the same specification are opened at the four corners of the clamping frame 22 and the corresponding positions at the four corners of the frame 21. The filter element for filtering air is clamped between the edge of the frame 21 and the clamping frame 22. Then, the bolt 23 passes through the frame 21, the filter element and the clamping frame 22 at the same time and is threadedly connected to the three to achieve sequential fixation of the three.

[0023] The mounting frame 20 provides a mounting bracket for the filter element, and the detachable mounting method facilitates filter element replacement and maintenance.

[0024] Working principle: First, start the motor 14, which drives the lead screw 141 to rotate. Then, the lead screw 141 pushes the drive rod 142 and the baffle 13 fixed on the drive rod 142 to move left and right in the horizontal direction. When the ventilation hole 131 on the baffle 13 overlaps with the air inlet 121 on the air inlet box 12, the air intake is the largest. As the air inlet 121 and the ventilation hole 131 are staggered, the channel for air flow between them becomes smaller, so the air intake of the device decreases.

[0025] The above embodiments are merely one of the preferred embodiments of this utility model and should not be used to limit the scope of protection of this utility model. Any modifications or refinements made to the main design concept and spirit of this utility model that are not of substantial significance, but solve the same technical problem as this utility model, should be included within the scope of protection of this utility model.

Claims

1. A variable air volume FFU (Fan Filter Unit) for cleanrooms, characterized in that, include: The bellows (10) and the mounting frame (20) located on one side of the bellows (10); The bellows (10) includes a box body (11), an air inlet box (12) for air intake is installed on one side of the box body (11), an air inlet (121) is opened on the air inlet box (12), and the air inlet (121) is moved on the air inlet by an adjustment component to adjust its opening size, and the adjustment component is driven by a drive component. The mounting frame (20) includes a frame body (21) on which a filter element can be detachably mounted; The frame (21) is hinged to the box (11).

2. The variable air volume FFU air supply unit for cleanrooms according to claim 1, characterized in that, The adjustment component includes a baffle (13) with ventilation holes (131) on it. The baffle (13) is attached to the air inlet box (12) and can slide relative to it.

3. The variable air volume FFU air supply unit for cleanrooms according to claim 2, characterized in that, The drive assembly includes a motor (14), the output end of which is connected to a lead screw (141), one end of which is threadedly connected to a drive rod (142), and a sliding sleeve (144) is slidably installed on the periphery of the drive rod (142).

4. The variable air volume FFU air supply unit for cleanrooms according to claim 3, characterized in that, The outer wall of the drive rod (142) has a rib (143), which is adapted to the groove of the inner wall of the sliding sleeve (144), and the rib (143) slides in the groove.

5. The variable air volume FFU air supply unit for cleanrooms according to claim 1 or 4, characterized in that, A clamping frame (22) is installed on the frame (21), and the filter element is located between the frame (21) and the clamping frame (22).

6. The variable air volume FFU air supply unit for cleanrooms according to claim 5, characterized in that, The frame (21) and the clamping frame (22) are connected by bolts (23).

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