KR20090004377A - Filter unit of a clean room ceiling system - Google Patents

Abstract

A filter unit of a cleaning room ceiling system is provided to reduce the number of parts and an operation process in the installation work of a clean room, and to repair and manage the ceiling system more easily. A filter unit of a cleaning room ceiling system is supported by a structure frame(5) fixed to a holding frame. The holding frame has a housing part in which a fan unit is installed. The filter unit is closely adhered to the fan unit installed in the housing part. The filter unit comprises: a filter media(10); a filter frame(20) including side faces which are supported by the structure frame and support the contour of the filter media such that side faces of the filter media are supported, extension pieces(23,24) extending to the inner side from the side faces to support edges of the filter media, and air diffusioner inserting parts on the inner side of the side faces under the filter media; pads(30) interposed between the filter frame and filter medium to maintain sealability; and an air diffusioner(40) having a plurality of holes formed therein to exhaust filtered air into a room. The air diffusioner is fixed to the filter frame in such a shape the catching pieces are inserted and assembled into the air diffusioner inserting parts by including catching pieces extending from upper ends of at least facing sidewalls among sidewalls toward the outer side.

Description

FILTER UNIT OF A CLEAN ROOM CEILING SYSTEM

The present invention relates to a ceiling system of a clean room, and more particularly, to a filter unit of a clean room ceiling system installed for supplying filtration air in a ceiling system of a clean room.

In general, clean rooms, such as electronic assembly rooms, semiconductor assembly rooms, hospital operating rooms, sterile rooms, and bacterial culture rooms that require dust free, have a ceiling system for supplying filtered air to the ceiling.

The ceiling system of a clean room usually uses the installation of a fan filter unit (FFU) on the ceiling of the room. The fan filter unit is a combined or integral fan filter unit of the fan unit and the filter unit. It is provided with a structure through which the air supplied through the fan is introduced through the filter and then discharged into the room.

A diffuser plate is generally installed at the bottom of the fan filter unit. The diffuser plate is formed in the form of a plate in which a central portion having a hole penetrated downward and a plurality of inclined holes which are laterally sloped downwardly around the central portion are formed. A peripheral portion is provided to allow air to spread evenly throughout the room.

The conventional diffuser plate is installed as a separate structure under the fan filter unit. Therefore, in order to install the diffuser plate, a mold bar and a nut for installing the diffuser plate are required. It involved installation work.

The present invention has been made to solve the above disadvantages, and an object of the present invention is to provide a filter unit of a clean room ceiling system capable of installing a diffuser plate without a separate structure for installing a diffuser plate in a ceiling system of a clean room. .

It is also an object of the present invention to provide a filter unit of a clean room ceiling system in which a diffuser plate is detachably formed.

In order to achieve the above object, an aspect of the present invention is a filter unit of a clean room ceiling system supported by a structural frame fixed to a mounting frame suspended from the ceiling of the clean room, the mounting frame is a fan unit And a receiving unit to be installed, wherein the filter unit is installed in close contact with the fan unit installed in the receiving unit, and the filter unit includes: a filter material; Supported by the structural frame, the outer side of the filter material for supporting the side of the filter material and extending from the side inwards to support the edge of the filter material, and the side to the lower position of the filter material A filter frame having a diffusion plate fitting formed at an inner side thereof; A pad interposed between the filter frame and the filter material to maintain a sealability; And a diffusion plate are filtered air through the filter material having a plurality of holes that are discharged to the room interior, and having a latching member extending outwardly from the top of the side wall at least opposite of the side wall, the retaining part of the diffusion plate It includes a diffusion plate, which is fixed to the filter frame in the form of fitting to the fitting portion.

Another aspect of the present invention is a filter unit of a clean room ceiling system supported by a structural frame fixed to a mounting frame supported by being suspended from the ceiling of a clean room,

The mounting frame includes a receiving unit in which a fan unit is installed, and the filter unit is installed in close contact with the fan unit installed in the receiving unit, and the filter unit comprises: a filter material; A filter frame supporting an outer portion of the filter material, the filter frame including a side surface supporting a side surface of the filter material and an extension piece extending inwardly from the side surface to support an edge of the filter material; A diffusion plate fitting portion formed inside the side surface to a lower position of the filter material; And a pad interposed between the filter frame and the filter material to maintain a sealability, wherein the diffusion fitting portion and the filter frame are separated to have a fixing portion for fixing the diffusion plate after the diffusion plate is inserted. Provide the filter unit of the system.

According to the present invention, the side wall of the diffusion plate is formed to be elastically movable inward, so that the diffusion plate is detachably fitted to the diffusion plate fitting portion while the filter frame is fixed to the filter material.

According to the present invention, the diffusion plate fitting portion of the filter frame is formed in the shape of a groove opened inward.

According to the present invention, it is possible to omit a separate structure for installing the diffusion plate when installing the filter unit in the ceiling system of the clean room. This reduces parts count and work processes in clean room installations.

Further, according to the present invention, the attachment and detachment of the diffuser plate in the filter unit is easy, so that the maintenance and management of the ceiling system becomes easier.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a view showing the installation structure of the filter unit of the clean room ceiling system according to the present invention.

Referring to FIG. 1, a support structure of a filter unit of a clean room ceiling system according to the present invention includes a main frame 100 suspended from a ceiling of a clean room by a suspension device 200 and fixed in position. In addition, the main frame 100 consists of a mounting frame 110 which is suspended through another suspension device 210.

The mounting frame 110 is formed with a rectangular accommodating portion having a rectangular cross section in which a fan filter unit (not shown) is accommodated by a mold bar 120 arranged in a grid.

The fan filter unit is configured to be mounted on a wing portion on the side of the wedge-shaped mold bar 120, and the cross-sectional area size of the accommodation portion is determined by the width of the wing portion.

In order to form a receiving portion for the fan filter unit, the mounting frame 110 is assembled in a lattice form. In general, four mold bars (shot bars) 120 are arranged in a cross shape, respectively, through the connecting portion 300. Are integrally combined. The connection part 300 is formed with a bolt hole, through which the long bolt (4) is inserted.

The fan unit is installed in the grid receiving portion of the mounting frame 110 in a form supported by the wing of the mold bar 120, the structural frame 5 is supported by the long bolt 4 to the lower surface of the fan unit. The filter unit is installed in the form.

2 is a cross-sectional view of a filter unit according to an embodiment of the present invention, FIG. 3 is an enlarged cross-sectional view of part A of FIG. 2, and FIG. 4 is a view showing a diffusion plate according to the present invention.

Referring to the accompanying drawings, the filter unit 1 according to the present invention, the filter material (FILTER MEDIA; 10), the filter frame (MOULD BAR; 20), the pad 30, the diffusion plate (AIR DIFFUSIONER; 40) Include.

The filter frame 20 supports the outside of the filter material 10 and is integrally fixed so that there is no gap with the structural frame 5 supporting the filter unit 1 on the ceiling of the clean room.

The filter frame 20 is assembled to the side of the filter material 10, the side 22 for supporting the side of the filter material 10, and the extension piece extending inward from the top and bottom of the side (22) ( 23, 24). The filter frame 20 supports the filter material 10 with the pad 30 interposed between the filter material 20, and the upper and lower ends of the pad 30 and the filter are extended by the extension pieces 23 and 24. The upper and lower surface edges of the ash 10 are supported, whereby the pad 30 and the filter material 10 are held inside the assembled filter frame 20.

The filter frame 20 has a diffusion plate fitting portion 26 on the side inward to a lower position of the filter material 10. The diffusion plate fitting portion 26 is formed in the shape of a groove that opens toward the inner side defined by the lower extension piece 24 and the bottom surface 28. The diffusion plate 40 is fitted and fixed by the diffusion plate fitting portion 26.

A locking jaw 29 is formed on the bottom surface 28 of the groove plate diffusion part 26.

The filter material 10 is installed in a form in which an outer edge is supported by the filter frame 20, and a pad 30 made of urethane material is installed between the filter material 20. The urethane pad 30 maintains sealability between the filter material and the filter frame.

The diffusion plate 40 has a central portion in which a plurality of vertical holes 42 vertically penetrate, and an inclined hole 44 penetrated obliquely downward to the side. The air filtered through the filter material 10 In addition, while being discharged through the vertical hole 42 and the inclined hole 44, it is evenly spread throughout the clean room.

According to an embodiment of the present invention, the diffuser plate 40 is in the form of a rectangular plate and has side walls 45 which are bent upwards at each side end and extend from at least an upper end of two opposite side edges 45. The locking piece 48 is bent toward the outside and extended.

The lower surface of the locking piece 48 is provided with a locking protrusion 49 that is matched with the locking projection 29 formed on the bottom surface 28 of the diffusion plate fitting portion 26 of the filter frame 20.

EMBODIMENT OF THE INVENTION Hereinafter, the installation method of the filter unit which concerns on this invention is demonstrated with reference to drawings.

Not only the diffusion plate 40 can be installed in an assembled state before the installation of the filter unit 1, but also the filter unit 1 is installed with the diffusion plate 40 removed, and the diffusion plate 40 is It is possible to be assembled to the filter unit 1.

Since the diffusion plate 40 is detachable from the filter unit 1, inspection of the filter material is easy.

2 and 3 show that the filter frame 20 has the pad 30 and the filter material 10 on the structural frame 5 supported by the long bolt 4 at the connection portion 300 of the mounting frame 110. The case where the diffuser plate 40 is assembled after being closely fixed in a supported state is described as an example.

The diffusion plate 40 may be made of various materials such as stainless steel, an alloy steel sheet, and a refractory plastic, and has a predetermined elastic characteristic. Therefore, while the side wall 45 of the diffuser plate 40 is pressed inwardly, the diffuser plate 40 is inserted between the filter frames 20 to the lower position of the filter material 10 and then the pressing force is removed. When the lower side wall 45 is restored to its original state, the engaging piece 48 extending outward from the side wall 45 is fitted into the groove-shaped diffusion plate fitting portion 40 at the bottom of the filter frame 20. That is, the side wall 45 of the diffusion plate 40 is formed to be able to move elastically in the inward direction, so that the diffusion plate 40 in the state that the filter frame 20 is fixed to the filter material 10 It is possible to be detachably fitted to the diffusion plate fitting portion 26.

After the engaging piece 48 of the diffuser plate 40 is fitted into the diffuser plate fitting portion 26 of the filter frame 20, even if a load for pulling the diffuser plate 40 down is applied, the catching jaw 29 and The engaging protrusion 49 may be in contact to prevent the diffusion plate from being separated. Therefore, the diffusion plate 40 is not easily detached from the filter frame 20. Of course, when the diffusion plate 40 is pulled down with a force of a predetermined force or more for the purpose of detachment of the diffusion plate 40, the locking piece 48 has a groove shape while the locking protrusion 49 passes over the locking jaw 29. The diffusion plate 40 may be detached from the diffusion plate fitting portion 26, thereby detaching the diffusion plate 40. Accordingly, the diffusion plate 40 can be easily fixed by fitting, and can be easily detached from the force applied artificially for detachment. The present invention can omit the diffusion plate structure for diffusion plate installation in this manner.

Hereinafter, another embodiment of the present invention will be described.

5 is a cross-sectional view of a filter unit according to another embodiment of the present invention, FIG. 6 is an enlarged cross-sectional view of part A of FIG. 5, and FIG. 7 is a view showing a diffusion plate according to another embodiment of the present invention. 5 to 7, according to the embodiment of the present invention, the diffusion plate 46 is in the form of a rectangular plate, unlike the above-described embodiment is not a structure that is bent and extended upward from each side end as a whole Is a plate-shaped structure. Since other configurations of the present embodiment are the same as the above-described embodiment, redundant description is omitted.

8A and 8B are respective components of a filter unit according to another embodiment of the present invention, FIGS. 9A and 9B are respective cross-sectional views of FIGS. 8A and 8B, and FIG. 10 is a cross-sectional view of each of the components of FIGS. 8A and 8B. This figure shows the coupling state. The filter unit according to the present embodiment will be mainly described for differences from the above-described embodiment, and the same description will be omitted for convenience of description.

The filter unit is installed in close contact with the fan unit provided in the receiving portion, and extends inward from the side and side that supports the side of the filter material to support the edge of the filter material (not shown in FIG. 2) 72. It is provided with a filter frame (50, 70) having a 74, and is provided with a separate diffuser plate fitting portion 60 formed inside the side to the lower position of the filter material.

On the other hand, the filter frame (50, 70) is interposed between the filter material is provided with a urethane pad to maintain the sealing, the diffusion plate fitting portion 60 and the filter frame (50, 70) is made of a separate structure and diffused And a fixing portion 62 for fixing the plate fitting portion 60 and the filter frames 50 and 70. The filter frames 50 and 70 include first subframes 50 and second subframes 70 formed in a structure surrounding the filter material. The first subframe 50 is a portion fixed to the diffusion plate fitting portion 60, and the second subframe 70 has an insertion piece 74 into which the diffusion plate is inserted.

8A, 8B, 9A, 9B, 10, and 11, the filter frames 50 and 70 are opposed to each other in a direction perpendicular to the first subframe 50 facing each other. Including the second subframe 70, the first and second subframes have a structure in which each pair is opposed to each other. In the case of the first subframe 50, for example, in the state where the fixing screw 54 has a groove 52 into which the fixing screw 54 can be inserted, the failure screw 54 is provided with the second subframe 70. It has a structure that can be supported by being inserted into the groove 52 through the edge.

The second subframe 70 has an outer side of the filter material, but includes side portions that support the side of the filter material and extension pieces 72 and 74 that extend inwardly from the side to support the edge of the filter material. Therefore, in the structure in which the first subframe 50 and the second subframe 70 are coupled to each other, the filter material may be seated through the extension pieces 72 and 74 therein. The filter material is in close contact with the urethane pad as mentioned in the above embodiment.

Meanwhile, the filter frames 50 and 70 including the first subframe 50 and the second subframe 70 have a structure separated from each other by the diffusion plate fitting part 60. After being fitted, they are fixed to each other through fixings. The fixing method is preferably fixed through a separate fixing screw 66, but other methods are also possible. In a specific manner, for example, the groove 62 into which the fixing screw 66 can be inserted is provided at the side of the diffusion plate fitting portion 60 so that the fixing screw 66 penetrates the edge of the second subframe 70. It has a structure that can be supported by being inserted into the groove (64). On the other hand, the diffusion plate fitting portion 60 has an insertion piece 64 formed so that the diffusion plate 80 can be fitted.

In FIG. 11, the diffusion plate fitting portion 60 is formed on both sides of the filter frames 50 and 70, but in actual application, the diffusion plate fitting portion, which is the method according to the above-described embodiment, is not separated from the filter frame. It is also possible to mix and apply the structure which is integrally formed, and the structure which forms the diffuser plate fitting part and the filter frame into a separate structure. That is, the diffusion plate fitting portion 60 separated from the filter frames 50 and 70 may be formed at one end or both.

On the other hand, an example of an assembly method according to an embodiment of the present invention will be described.

First, referring to FIGS. 8A, 8B, 9A, 9B, and 10, the filter frames 50 and 70 including the first subframe 50 and the second subframe 70 are assembled first. . Specifically, the fixing screw 54 fixes the fixing screw through the two subframes 70 through the grooves 52 of the first subframe 50.

Next, referring to FIG. 11, the filter material is inserted and packed inside the filter frames 50 and 70, and in this case, is tightly fixed by the urethane pad. This may refer to what has been described in the above embodiments (see FIG. 2, etc.). At this time, according to the present embodiment, it is possible to check whether or not leakage of the filter material occurs. Whether the filter material leak is checked is an important factor in the actual assembly, and it is checked whether the filter material leak occurs in the corner of the actually manufactured structure.

Next, the diffusion plate 80 is inserted into the insertion piece 64 of the diffusion plate fitting portion 60. At this time, the diffusion plate is guided and inserted by the insertion piece 74 formed under the second subframe 70 of the filter frame. After insertion, the diffuser plate fitting 60 is attached to the filter frames 50 and 70 by the fixing screw 66 and the diffuser plate fitting 60 is attached to the second subframe 70 using the fixing screw 66. Fix it. 11 and 12 illustrate a situation in which the diffusion plate 80 is fitted according to an embodiment of the present invention. However, the fixing method is not limited to the method using the fixing screw, it is obvious that it is possible in various ways not particularly limited, such as fixing with a clip or pin.

1 is a view showing an installation structure of a filter unit of a clean room ceiling system according to the present invention.

2 is a cross-sectional view of a filter unit according to an embodiment of the present invention, FIG. 3 is an enlarged cross-sectional view of a portion A of FIG. 2, and FIG. 4 is a view showing a diffusion plate according to an embodiment of the present invention.

5 is a cross-sectional view of a filter unit according to another embodiment of the present invention, FIG. 6 is an enlarged cross-sectional view of part A of FIG. 5, and FIG. 7 is a view showing a diffusion plate according to another embodiment of the present invention.

8A and 8B are views of respective components of the filter unit according to another embodiment of the present invention.

9A and 9B are cross-sectional views of FIGS. 8A and 8B, and FIG. 10 is a view showing a combined state of the components of FIGS. 8A and 8B.

11 and 12 are views illustrating a situation in which the diffusion plate 80 is fitted to the diffusion plate fitting portion according to another embodiment of the present invention.

Claims (8)

A filter unit of a clean room ceiling system supported by a structural frame fixed to a mounting frame suspended from a ceiling of a clean room, The mounting frame has a receiving unit is installed, the fan unit, The filter unit is installed in close contact with the fan unit installed in the receiving portion, The filter unit, Filter material; Supported by the structural frame, the outer side of the filter material for supporting the side of the filter material and extending from the side inwards to support the edge of the filter material, and the side to the lower position of the filter material A filter frame having a diffusion plate fitting formed at an inner side thereof; A pad interposed between the filter frame and the filter material to maintain a sealability; And A diffuser plate having a plurality of holes through which the air filtered through the filter material is discharged into a room, the diffuser plate having a catching piece extending outward from an upper end of at least opposite sidewalls of the side walls, wherein the catching piece is fitted into the diffuser plate. Filter unit of the clean room ceiling system comprising a diffuser plate, which is fixed to the filter frame in a fitting form. The method of claim 1, The filter unit of the clean room ceiling system, characterized in that the diffusion plate fitting portion of the filter frame is formed in the shape of a groove opened toward the inside. The method according to claim 1 or 2, The side wall of the diffusion plate is formed to be able to move elastically in the inward direction, so that the diffusion plate is detachably fitted to the diffusion plate fitting portion while the filter frame is fixed to the filter material. Filter unit of the ceiling system. The method of claim 2, The groove-shaped diffusion plate fitting portion is formed with a locking step on the bottom surface, The fitting unit of the diffusion plate is a filter unit of the clean room ceiling system, characterized in that the locking projection is formed to match the locking step. The method of claim 1, The diffuser plate is a filter unit of a clean room ceiling system having a structure having a plate-shaped or extending sidewall bent upward from the side end. A filter unit of a clean room ceiling system supported by a structural frame fixed to a mounting frame suspended from a ceiling of a clean room, The mounting frame has a receiving unit is installed, the fan unit, The filter unit is installed in close contact with the fan unit installed in the receiving portion, The filter unit, Filter material; A filter frame supporting an outer portion of the filter material, the filter frame including a side surface supporting a side surface of the filter material and an extension piece extending inwardly from the side surface to support an edge of the filter material; A diffusion plate fitting portion formed inside the side surface to a lower position of the filter material; And A pad interposed between the filter frame and the filter material to maintain a sealability, The diffusion fitting portion and the filter frame is a separate structure, the filter unit of the clean room ceiling system, characterized in that the fixing unit for fixing to each other after the diffusion plate is inserted. The method of claim 6, The filter frame is formed in a structure surrounding the filter material, the filter unit of the clean room ceiling system having a first subframe facing each other and a second subframe facing each other in a direction perpendicular to them. The method of claim 6, The diffusion plate fitting is formed on both sides or one side of the filter frame filter unit of the clean room ceiling system.

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