CN218760596U - Air supply unit for fan filter unit - Google Patents

Abstract

The utility model belongs to the technical field of fan filter unit, a air supply unit for fan filter unit is disclosed, including box subassembly and fan subassembly, the box subassembly includes roof, curb plate subassembly and bottom plate subassembly, the bottom plate subassembly includes first fixed plate and the second fixed plate that is the cross setting, the second fixed plate includes first plate section and second plate section, first plate section and second plate section branch are located the first fixed plate along the relative both sides of width direction to be connected with the curb plate subassembly, first fixed plate and second fixed plate set up towards one side parallel and level of holding intracavity; the fan subassembly is installed on first fixed plate and second fixed plate. First fixed plate and the second fixed plate that is the cross setting compare the fixed plate that is the river style of calligraphy among the prior art and have higher bearing capacity, can guarantee the steadiness after the fan installation, produce great vibration and noise when avoiding the fan operation, first fixed plate and second fixed plate need not to adopt bodiness panel, reduce the panel cost.

Description

Air supply unit for fan filter unit

Technical Field

The utility model relates to a fan filter unit technical field especially relates to an air supply unit for fan filter unit.

Background

The Fan Filter Unit (Fan Filter Unit) is a modularized tail end air supply device with a filtering effect, and is suitable for obtaining high-level clean environment in various environments. The fan filter unit can provide high-quality clean air for environments with different sizes and cleanliness grades, and is applied to occasions such as clean rooms, clean workbenches, clean production lines, assembled clean rooms and local hundred-level places.

The fan filter unit comprises an air supply unit and a filter connected to the downstream of the air supply unit, wherein the filter is generally provided with a primary filter screen and a high filter screen. The fan of the air supply unit sucks air from the top of the FFU, the air is filtered by the primary filter and the high filter, and the filtered clean air is uniformly sent out on the whole air outlet surface at a wind speed of 0.45m/s +/-20%.

Fig. 1 is a schematic diagram of a blower filter unit air supply unit in the prior art. The bottom of the box 10 'of the air supply unit comprises three fixing plates 20' arranged at intervals in a shape like Chinese character 'chuan', the fan 30 'is arranged on the three fixing plates 20', and the middle fixing plate 20 'is wider than the fixing plates 20' on the two sides. The bottom structure has poor stability, most of load is concentrated on the middle fixing plate 20', the whole weight of the fan 30' is larger, the requirement on the hardness of the fixing plate 20 'is harsh, even the plate thickness can reach 1.2mm-1.5mm, the deformation of the box body 10' caused by the over-soft plate can be avoided, and the plate cost is higher. If the fixing plate 20' with a small thickness is used, the stability and the bearing capacity of the air supply unit box 10' cannot be ensured, and the fan 30' generates large vibration and noise during operation, so that the fan filter unit cannot meet the qualified requirements.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an air supply unit for fan filter unit, its bearing capacity is high and the panel cost is lower, can guarantee the steadiness after the fan installation, produces great vibration and noise when avoiding the fan operation.

In order to achieve the purpose, the utility model adopts the following technical proposal:

an air supply unit for a fan filter unit is provided, comprising:

the box body assembly comprises a top plate, side plate assemblies and a bottom plate assembly, wherein an air inlet port is formed in the top plate, the side plate assemblies are arranged around the circumference of the top plate to form an accommodating cavity with the top plate, the bottom plate assembly comprises a first fixing plate and a second fixing plate which are arranged in a cross mode, two ends of the first fixing plate in the length direction are connected to the side plate assemblies, the second fixing plate comprises a first plate section and a second plate section, the first plate section and the second plate section are arranged on two opposite sides of the first fixing plate in the width direction and are connected with the side plate assemblies, and the first fixing plate and the second fixing plate are arranged in a flush mode towards one side in the accommodating cavity;

and the fan assembly is arranged in the accommodating cavity and is right opposite to the air inlet port, and the fan assembly is arranged on the first fixing plate and the second fixing plate.

As the utility model provides an air supply unit's preferred scheme for fan filter unit, the circumference of first fixed plate the circumference of first plate section and the circumference of second plate section all is provided with the turn-ups, first fixed plate through self the turn-ups with curb plate assembly connects, first plate section with the one end of second plate section all through self the turn-ups with curb plate assembly connects, the other end all through self the turn-ups with the turn-ups of first fixed plate is connected.

As the utility model provides an optimal scheme for fan filter unit's air supply unit, the fan subassembly includes mounting panel and impeller subassembly, the impeller subassembly rotationally set up in on the mounting panel, and with the air inlet port is just to setting up, the mounting panel set up in first fixed plate with on the second fixed plate.

As the utility model provides an optimal scheme for fan filter unit's air supply unit, the coaxial wind-guiding circle that is provided with of air intake department of impeller subassembly, the arc is personally submitted to the inboard of wind-guiding circle.

As the utility model provides a preferred scheme for fan filter unit's air supply unit, the fan subassembly still includes a plurality of air guide boards in the same direction as, and is a plurality of the air guide board is followed impeller assembly's circumference evenly distributed, adjacent two form the air-out passageway between the air guide board in the same direction as, the air guide board is including continuous arc and flat board in the same direction as, the arc is kept away from dull and stereotyped one end is provided with the circular arc guide plate, the circular arc guide plate is towards keeping away from impeller assembly's direction is buckled.

As the utility model provides an optimal scheme for fan filter unit's air supply unit, the air inlet port department covers and is equipped with the grid board, be provided with a plurality of air inlet net gapes that are the rectangle and arrange on the grid board.

As the utility model provides an air supply unit's preferred scheme for fan filter unit, still including set up in handle structure on the roof, the handle structure all is provided with the recess along the relative both sides of length direction, threaded fastener is worn to be equipped with by the diapire of recess, threaded fastener with the roof is connected.

As the utility model provides a preferred scheme for fan filter unit's air supply unit, the handle structure is provided with a plurality ofly, at least two the handle structure branch is located the both sides that the roof is relative.

As the utility model provides an optimal selection scheme for fan filter unit's air supply unit still include with the controller that fan subassembly electricity is connected, be provided with the controller installing port on the roof, the controller install in controller installing port department.

As the utility model provides an optimal scheme for fan filter unit's air supply unit follows the bottom border interval of curb plate subassembly is provided with a plurality of locating plates, every the locating plate is all relative curb plate subassembly downwardly depending stretches to can laminate with filter equipment's outer wall.

The utility model has the advantages that:

the utility model provides an air supply unit for fan filter unit, the first fixed plate that is the cross setting and the fixed plate that the second fixed plate compares and is the river style of calligraphy among the prior art have higher bearing capacity, and first plate section and second plate section are add respectively to the both sides that this bottom plate subassembly is equivalent to the reinforcing plate that lies in the centre among the prior art to play the effect of fixed plate in the middle of strengthening, improvement bearing capacity. Because the load of fan subassembly concentrates the intermediate position that distributes in the bottom plate subassembly, consequently, through strengthening the joint strength of first fixed plate on the box subassembly, can guarantee the steadiness after the fan installation, avoid the fan to produce great vibration and noise during operation, solved among the prior art air supply unit bottom structure bearing capacity not enough and lead to the yielding problem of box subassembly. And, first fixed plate and second fixed plate use the panel of standard thickness can, need not to adopt the bodiness panel, reduce panel cost. Further, the second fixed plate comprises the first plate section and the second plate section which are respectively arranged on two sides of the first fixed plate, and is not directly overlapped with the first fixed plate in the structure mode, so that the first fixed plate and the second fixed plate can be parallel and level towards one side in the containing cavity, the fan assembly is convenient to install, and the load of the fan assembly is uniformly distributed on the first fixed plate and the second fixed plate.

Drawings

FIG. 1 is a schematic diagram of a prior art blower filter assembly air supply unit;

FIG. 2 is a first view of an air supply unit for a fan filter bank according to an embodiment of the present invention;

fig. 3 is a second view of an air supply unit for a fan filter assembly according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a base plate assembly according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a fan assembly according to an embodiment of the present invention;

fig. 6 is a partially enlarged view of a point a in fig. 2.

In FIG. 1:

10', a box body; 20', a fixing plate; 30' and a fan.

In fig. 2 to 6:

1. a case assembly; 2. a fan assembly; 3. a handle structure; 4. positioning a plate;

11. a top plate; 12. a side plate assembly; 13. a base plate assembly; 14. an accommodating cavity;

111. a grid plate; 112. a controller mounting port;

131. a first fixing plate; 132. a second fixing plate;

1311. flanging; 1321. a first plate section; 1322. a second plate section;

21. mounting a plate; 22. an impeller assembly; 23. a wind guide ring; 24. a downwind guide plate; 25. an air outlet channel;

241. an arc-shaped plate; 242. a flat plate; 243. a circular arc guide plate;

31. and (4) a groove.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation of the first and second features not being in direct contact, but being in contact with another feature between them. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used based on the orientations and positional relationships shown in the drawings, and are only for convenience of description and simplification of operation, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

As shown in fig. 2 and 3, the present embodiment provides an air supply unit for a fan filter unit, which includes a case assembly 1 and a fan assembly 2.

Referring to fig. 2 and 3, the box body assembly 1 includes a top plate 11, a side plate assembly 12 and a bottom plate assembly 13, an air inlet port is provided on the top plate 11, and the side plate assembly 12 is enclosed in the circumferential direction of the top plate 11 to form an accommodating cavity 14 with the top plate 11. Referring to fig. 4, the bottom plate assembly 13 includes a first fixing plate 131 and a second fixing plate 132 arranged in a crisscross manner, both ends of the first fixing plate 131 along the length direction are connected to the side plate assembly 12, the second fixing plate 132 includes a first plate segment 1321 and a second plate segment 1322, the first plate segment 1321 and the second plate segment 1322 are respectively disposed at two sides of the first fixing plate 131 along the width direction and are connected to the side plate assembly 12, and the first fixing plate 131 and the second fixing plate 132 are disposed flush with each other toward one side in the accommodating chamber 14. The fan assembly 2 is disposed in the accommodating cavity 14 and opposite to the air inlet port, and the fan assembly 2 is mounted on the first fixing plate 131 and the second fixing plate 132.

Furthermore, the air inlet port covers and is equipped with grid plate 111, is provided with a plurality of air inlet net gapes that are the rectangle and arrange on grid plate 111. The lower part of the air supply unit is connected with a filtering device. After fan subassembly 2 starts, a plurality of air inlet net gapes on the air accessible grid plate 111 are extracted to its inner chamber by fan subassembly 2 in, and then flow out through the space department between bottom plate subassembly 13 and the curb plate subassembly 12 to in getting into filter equipment, the air after filter through filter equipment's elementary, senior filter screen is sent to in the environment such as toilet.

The air supply unit for fan filter unit that this embodiment provided, first fixed plate 131 and the second fixed plate 132 that are the cross setting compare the fixed plate that is the river style of calligraphy among the prior art and have higher bearing capacity, and this bottom plate subassembly 13 is equivalent to and is located the both sides of the reinforcing plate in the middle of adding first plate segment 1321 and second plate segment 1322 respectively in prior art to play the middle fixed plate of strengthening, improve the effect of bearing capacity. Because the load of fan subassembly 2 concentrates the intermediate position that distributes in bottom plate subassembly 13, consequently, through strengthening the joint strength of first fixed plate 131 on box subassembly 1, can guarantee the steadiness after the fan installation, produce great vibration and noise when avoiding the fan operation, solved among the prior art air supply unit bottom structure bearing capacity not enough and lead to the yielding problem of box subassembly 1. Moreover, the first fixing plate 131 and the second fixing plate 132 can be made of a plate with a standard thickness, and a thickened plate is not required, so that the plate cost is reduced. Further, the second fixing plate 132 is composed of a first plate segment 1321 and a second plate segment 1322 which are respectively arranged at two sides of the first fixing plate 131, rather than a structural form which is directly overlapped with the first fixing plate 131, so that one sides of the first fixing plate 131 and the second fixing plate 132 facing the accommodating chamber 14 can be flush, the fan assembly 2 is convenient to mount, and the load of the fan assembly 2 is uniformly distributed on the first fixing plate 131 and the second fixing plate 132.

Referring to fig. 4, flanges 1311 are disposed on the circumferential direction of the first fixing plate 131, the circumferential direction of the first plate segment 1321, and the circumferential direction of the second plate segment 1322, the first fixing plate 131 is connected to the side plate assembly 12 through its flange 1311, one ends of the first plate segment 1321 and the second plate segment 1322 are connected to the side plate assembly 12 through its flange 1311, and the other ends of the first plate segment 1321 and the second plate segment 1322 are connected to the flange 1311 of the first fixing plate 131 through its flange 1311. The provision of the flange 1311 improves the strength of the first retaining plate 131, the first plate section 1321 and the second plate section 1322 on the one hand, and facilitates the connection between the two retaining plates and the side plate assembly 12 and between the two retaining plates on the other hand.

Referring to fig. 5, the blower assembly 2 includes a mounting plate 21 and an impeller assembly 22, the impeller assembly 22 is rotatably disposed on the mounting plate 21 and disposed opposite to the air inlet port, and the mounting plate 21 is disposed on the first fixing plate 131 and the second fixing plate 132. Specifically, a rotary motor may be disposed on the mounting plate 21, and an output shaft of the rotary motor may be coaxially connected to the impeller assembly 22 to drive the impeller assembly 22 to rotate. The mounting plate 21 is in surface contact with the first fixing plate 131 and the second fixing plate 132, so that the stability of the fan assembly 2 after mounting can be ensured.

Further, the mounting plate 21 is a rectangular plate, and the cross center line thereof is not coincident with the cross center line of the bottom plate assembly 13. Referring to fig. 3, the cross center line of the mounting plate 21 is rotated at an angle with respect to the cross center line of the base plate assembly 13 so that the contact area of the mounting plate 21 with the base plate assembly 13 is increased as much as possible.

Referring to fig. 5, an air guiding ring 23 is coaxially disposed at an air inlet of the impeller assembly 22, and an inner side surface of the air guiding ring 23 is arc-shaped. The flowing air entering the accommodating cavity 14 from the grid plate 111 firstly passes through the air guide ring 23 and then enters the air inlet of the impeller assembly 22, and the air guide ring 23 reduces the air inlet resistance, reduces the noise generated during the operation of the fan assembly 2 and improves the environmental quality.

With continued reference to fig. 5, the fan assembly 2 may optionally further include a plurality of downwind guide plates 24 (four are provided in this embodiment), and the plurality of downwind guide plates 24 are uniformly distributed along the circumferential direction of the impeller assembly 22. The downwind guide plate 24 is attached to the top plate 11 on one side and to the mounting plate 21 on the other side. An air outlet channel 25 is formed between two adjacent air guide plates 24, and flowing air is led out through the air outlet channel 25 and further flows out through a gap between the bottom plate assembly 13 and the side plate assembly 12. Specifically, the downwind guide plate 24 includes an arc-shaped plate 241 and a flat plate 242 connected to each other to guide the wind direction, and an arc-shaped guide plate 243 is disposed at an end of the arc-shaped plate 241 away from the flat plate 242, and the arc-shaped guide plate 243 is bent toward a direction away from the impeller assembly 22. That is, the bending direction of the arc guide plate 243 is the same as the direction of the flowing air, and the arc guide plate has good flow guiding and noise reducing effects.

Referring to fig. 2 and 6, a handle structure 3 is arranged on the top plate 11, grooves 31 are arranged on two opposite sides of the handle structure 3 along the length direction, and threaded fasteners are arranged on the bottom walls of the grooves 31 in a penetrating manner and connected with the top plate 11. The provision of the recess 31 prevents the connection portion of the handle structure 3 from being too thick and allows the handle structure 3 to be penetrated without the use of longer threaded fasteners for secure connection to the top plate 11. The threaded fasteners are preferably bolts which pass through the bottom wall of the recess 31 and the top plate 11 and are connected to nuts.

Further, referring to fig. 2, the handle structures 3 are provided in a plurality, and at least two handle structures 3 are respectively disposed on two opposite sides of the top plate 11, so as to facilitate hand-held installation and fixation. In the present embodiment, two handle structures 3 are provided on both sides of the top plate 11.

The air supply unit in this embodiment further includes a controller electrically connected to the fan assembly 2 to control the on/off and power of the fan assembly 2. Referring to fig. 2, a controller mounting opening 112 is provided on the top plate 11, and the controller is mounted at the controller mounting opening 112. The outside of controller can be connected with control terminal through the pencil, and the inboard of controller can be connected with fan subassembly 2 in the holding chamber 14 through the pencil to the realization controls the operation of fan subassembly 2 through control terminal.

Optionally, referring to fig. 2 and 3, a plurality of positioning plates 4 are spaced along the bottom edge of the side plate assembly 12, each positioning plate 4 depending downwardly from the side plate assembly 12 and being capable of engaging the outer wall of the filter apparatus. In this embodiment, roof 11 is the rectangular plate, and curb plate subassembly 12 includes four curb plates of end to end connection, and the middle part position of every curb plate all is provided with locating plate 4, and four locating plates 4 enclose into a location area, go into this location area with filter equipment card and can realize filter equipment's preliminary location, and the follow-up installation of being convenient for is fixed.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements, and substitutions will now occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. A air supply unit for fan filter unit, its characterized in that includes:

the box body assembly (1) comprises a top plate (11), side plate assemblies (12) and a bottom plate assembly (13), wherein an air inlet port is formed in the top plate (11), the side plate assemblies (12) are arranged around the top plate (11) to form an accommodating cavity (14) with the top plate (11), the bottom plate assembly (13) comprises a first fixing plate (131) and a second fixing plate (132) which are arranged in a cross manner, two ends of the first fixing plate (131) along the length direction are connected to the side plate assemblies (12), the second fixing plate (132) comprises a first plate section (1321) and a second plate section (1322), the first plate section (1321) and the second plate section (1322) are respectively arranged on two opposite sides of the first fixing plate (131) along the width direction and are connected with the side plate assemblies (12), and the first fixing plate (131) and the second fixing plate (132) are arranged towards one side in the accommodating cavity (14) in a flush manner;

the fan assembly (2) is arranged in the accommodating cavity (14) and is right opposite to the air inlet port, and the fan assembly (2) is installed on the first fixing plate (131) and the second fixing plate (132).

2. The air supply unit for the fan filter unit according to claim 1, wherein flanges (1311) are respectively arranged in the circumferential direction of the first fixing plate (131), the circumferential direction of the first plate section (1321) and the circumferential direction of the second plate section (1322), the first fixing plate (131) is connected with the side plate assembly (12) through the flange (1311) of the first fixing plate, one end of each of the first plate section (1321) and the second plate section (1322) is connected with the side plate assembly (12) through the flange (1311) of the first fixing plate (131), and the other end of each of the first plate section (1321) and the second plate section (1322) is connected with the flange (1311) of the first fixing plate (131) through the flange (1311).

3. The blower unit for a fan filter unit according to claim 1, wherein the blower assembly (2) includes a mounting plate (21) and an impeller assembly (22), the impeller assembly (22) is rotatably disposed on the mounting plate (21) and is disposed opposite to the air inlet port, and the mounting plate (21) is disposed on the first fixing plate (131) and the second fixing plate (132).

4. The air supply unit for the fan filter unit according to claim 3, wherein an air guide ring (23) is coaxially arranged at an air inlet of the impeller assembly (22), and an inner side surface of the air guide ring (23) is arc-shaped.

5. The air supply unit for the fan filter unit according to claim 3, wherein the fan assembly (2) further includes a plurality of downwind guide plates (24), the plurality of downwind guide plates (24) are uniformly distributed along the circumferential direction of the impeller assembly (22), an air outlet channel (25) is formed between two adjacent downwind guide plates (24), the downwind guide plates (24) include an arc-shaped plate (241) and a flat plate (242) which are connected, one end of the arc-shaped plate (241) far away from the flat plate (242) is provided with an arc-shaped guide plate (243), and the arc-shaped guide plate (243) is bent towards a direction far away from the impeller assembly (22).

6. The air supply unit for the fan filter unit according to any one of claims 1 to 5, wherein a grid plate (111) is disposed at the air inlet port, and a plurality of air inlet net ports arranged in a rectangular shape are disposed on the grid plate (111).

7. The air supply unit for the fan filter unit according to any one of claims 1 to 5, further comprising a handle structure (3) disposed on the top plate (11), wherein two opposite sides of the handle structure (3) along the length direction are provided with grooves (31), and bottom walls of the grooves (31) are provided with threaded fasteners in a penetrating manner, and the threaded fasteners are connected with the top plate (11).

8. Air supply unit for fan filter units according to claim 7, characterised in that the handle structures (3) are provided in plurality, at least two handle structures (3) being provided on opposite sides of the top plate (11).

9. The air supply unit for the fan filter unit according to any one of claims 1 to 5, further comprising a controller electrically connected to the fan assembly (2), wherein a controller mounting opening (112) is provided on the top plate (11), and the controller is mounted at the controller mounting opening (112).

10. The air supply unit for the fan filter unit according to any one of claims 1 to 5, wherein a plurality of positioning plates (4) are arranged at intervals along the bottom edge of the side plate assembly (12), and each positioning plate (4) downwardly depends from the side plate assembly (12) and can be attached to the outer wall of the filter device.

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