JPH11216323A - Installation structure of filter unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To keep cleanness of a filter unit, make an installation work easy, and easily replace filter units. SOLUTION: This installation structure comprises a frame main body 23 having a communication aperture 21, a lower part frame having outward flanges 22 for supporting a ceiling panel 10, a frame main body 33 to be fitted in the frame main body 22 in a manner the frame main body 33 can slide, an upper part frame 30 having an outward flange 31 for mounting a filter unit F on, joining screws 50 for joining the frame main bodies 23, 33, a connection duct 40 to be put on the filter unit F as to connect an air duct and the filter unit F, and fixing bolts 70 for fixing the connection duct 40 and the upper part frame 30 which are set face to face while sandwiching the filter unit F between them. The ceiling panel 10 is sandwiched between the outward flanges 22, 31 while packings 60 being inserted between the panel 10 and the flanges 22, 31 and frame main bodies 23, 33 of the lower part frame 20 and the upper part frame 30 are joined by the joining screws 50.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filter unit mounting structure, and more particularly to a filter unit mounting structure mounted on a ceiling of a clean room, for example.

[0002]

2. Description of the Related Art Generally, in a clean room, a filter unit is interposed between an air duct provided behind a ceiling and a vent provided in the ceiling in order to maintain cleanness. Therefore, conventionally, as shown in FIGS. 11 and 12, five frame members a having a U-shaped cross section are attached to the sides of the ceiling panel b to form the ventilation port c, and the ventilation port c and the air duct are formed. The filter unit F is mounted in a connection duct e connecting the filter unit d.

In this case, an angle-shaped mounting member f fixed to the frame member a is in contact with the outer surface of the connection duct e, and is bolted to fix the connection duct e. Further, the filter unit F is placed via an packing h on an angle-shaped support fitting g fixed by welding or the like to the inner surface of the connection duct e inserted into the ventilation port c. g through the mounting bracket j provided on the upper part of the filter unit F,
The filter unit F is fixed by screwing a nut k to the protrusion. The connection duct e is screwed to a frame member a provided in the ventilation port c with a bolt v.
It is bolted to the mounting flange q of the connection part of the air duct d via the packing h on the mounting flange p provided at the connection port n. A lid r is attached to the opening m of the connection duct e and is bolted.

On the indoor side of the vent c, a rectifying plate t having a number of small holes s is provided. The rectifying plate t is formed in a dish shape whose opening side expands, and an outward flange u protruding from the opening side comes into contact with the lower surface of the frame member a and is fixed by a fixing screw v. Have been.

[0005] Since it is necessary to maintain the cleanness of the filter unit F mounted as described above, for example, the connection between the frame member a and the ceiling panel b, the opening m of the connection duct e and the cover The caulking material w is filled in the connection part with r.

[0006]

However, in this type of conventional filter unit mounting structure, many members and man-hours are required, so that there is a problem that much labor and time are required for the mounting operation. . In addition, in order to maintain the cleanliness, for example, it is necessary to fill the connecting portion between the frame member a and the ceiling panel b, the connecting portion between the opening m of the connection duct e and the lid r, and the like with the caulking material w. In addition, there is a problem that not only work and skill are required for the work, but also the workability particularly at the site such as the ceiling is reduced, and the accuracy of the sealing property may be reduced. Further, the filter unit F
There was also a problem that the exchange of the was troublesome.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and provides a filter unit mounting structure capable of maintaining a sufficient degree of cleanness, facilitating mounting work, and facilitating replacement of the filter unit. The purpose is to do so.

[0008]

In order to achieve the above object, the present invention is configured as follows.

(1) According to the first aspect of the present invention, a lower frame having an outward flange abutting on a lower surface of a ceiling panel is provided at a lower portion of a frame main body having a communication port, and the frame body of the lower frame is slidable. A frame main body, an upper frame having an outward flange on which a filter unit is mounted on the frame main body, a connecting member for connecting the frame main bodies of the lower frame and the upper frame, a duct and A connection duct attached to the filter unit so as to connect the filter unit, and a fixing member for fixing the connection duct and the upper frame facing each other while sandwiching the filter unit; and In a state in which the ceiling panel is sandwiched between the outward flange of the upper frame and the ceiling panel with a sealing member interposed therebetween, the frame bodies of the lower frame and the upper frame are connected by the connection member. The features.

With the above construction, the lower frame having the communication port and the upper frame are slidably fitted to each other, and a seal is provided between the outward flanges of the lower frame and the upper frame and the ceiling panel. By connecting the frame bodies of the lower frame and the upper frame with a connecting member in a state where the ceiling panel is sandwiched with members interposed therebetween, it is possible to airtightly connect the ceiling panel with the upper frame and the lower frame. Thus, the ventilation holes of the filter unit can be easily formed.

(2) According to the second aspect of the present invention, a lower frame having an outward flange abutting on a lower surface of a ceiling panel is provided at a lower portion of a frame main body having a communication port, and the frame main body of the lower frame is slidable. A frame main body, an upper frame having an outward flange on which a filter unit is mounted on the frame main body, a connecting member for connecting the frame main bodies of the lower frame and the upper frame, a duct and A connection duct attached to the filter unit to connect the filter unit, and a fixing member for fixing the connection duct and the upper frame that face each other while sandwiching the filter unit, The filter unit is mounted on the outward flange with a seal member interposed therebetween, and the connection duct is mounted on the upper surface of the filter unit with the seal member interposed therebetween, and provided on the connection duct. The fixing member penetrating the mounting flange is fastened to the mounting portion provided on the outward flange of the upper frame, and the filter unit is sandwiched and fixed between the connection duct and the upper frame, I do.

In this case, the fixing member can be formed by a bolt, and the mounting portion is formed by mounting grooves protruding on the upper surface of the outward flange of the upper frame, a nut fixed to the upper surface of the outward flange, Alternatively, it can be formed by a nut fixed to the side of the outward flange (claim 3,
4,5).

[0013] With the above configuration, the filter unit can be held and fixed between the upper frame and the connection duct that constitute the ventilation port, so that the filter unit can be supported by the ceiling panel and connected. The part can be airtight. In addition, by releasing the fastening between the fixing member and the mounting portion, the filter unit can be removed.

(3) According to a sixth aspect of the present invention, in the filter unit mounting structure according to the first or second aspect, an inward flange is formed at a lower portion of the lower frame, and an inner surface of a frame main body of the upper frame. A lock receiving portion that opens downward, the edge of the rectifying plate is placed on the inward flange, and a cross section substantially L between the edge of the rectifying plate and the lock receiving portion. The straightening plate is fixed with a U-shaped pressing member interposed therebetween.

With the above-described structure, the rectifying plate can be hermetically and easily attached to the ventilation port using the inward flange and the holding member provided on the lower frame.

[0016]

Embodiments of the present invention will be described below in detail with reference to the drawings. Here, a mounting structure of a filter unit for a clean room will be described.

FIG. 1 is a sectional view showing a mounting structure of a filter unit, FIG. 2 is an enlarged sectional view showing a mounting portion of a ceiling panel,
FIG. 3 is an enlarged sectional view showing a mounting portion of the filter unit.

The filter unit F includes a ceiling panel 1
In addition, it is disposed in a vent formed by the lower frame 20 and the upper frame 30 that connect the upper frame 30 and is sandwiched between the connection duct 40 that connects the vent and an air duct (not shown) and the upper frame 30. Fixed.

In this case, the ceiling panel 10 is provided between the pair of surface plates 11 by, for example, a heat insulating core material 1 such as polyurethane foam.
2 is formed by a sandwich panel filled with 2.
The ceiling panel 10 includes an outward flange 22 provided on a lower frame 20 having a communication port 21 forming a ventilation port,
A sealing member such as a packing 60 is sandwiched and fixed between a connecting member such as an outward flange 31 provided on the upper frame 30 connected to the lower frame 20 with a connecting screw 50.

The filter unit F is mounted on the upper surface of the outward flange 31 of the upper frame 30 via a seal member such as a packing 60, and a seal member such as a packing 42 is provided above the filter unit F. The mounting flange 44 provided on the connection duct 40 to be mounted and mounted, and the mounting portion such as the mounting groove 32 provided on the upper surface of the outward flange 31 of the upper frame 30 are fastened by a fixing member such as a fixing bolt 70. It is pinched and fixed by.

A rectifying plate 80 having a large number of small holes 81 is mounted on the indoor side of the ventilation hole formed by the upper frame 30, the lower frame 20, and the ceiling panel 10.

In this case, as shown in FIG. 7, the lower frame 20 includes a frame main body 23 having a rectangular communication port 21 forming a ventilation port, and extends outward from a lower end of the frame main body 23. And an inward flange 24 extending inward from a lower end of the frame body 23. The lower frame 20 includes a vertical piece 25 constituting a frame body 23, an outward flange 22 extending outward from a lower end of the vertical piece 25, and an opposite side from the lower end of the vertical piece 25 to the outward flange 22. Are formed by joining, at right angles, four sections 26 formed of, for example, an extruded section made of aluminum and having an inward flange 24 extending to the outside.

In this case, the end of the profile 26 is cut at 45 degrees, and the adjacent profiles 26 are brought into contact with each other, and the L-shaped connection is formed across both outward flanges 22 of the adjacent profiles 26. The plates 27 are bonded to each other with an adhesive or the like to connect the profiles 26 to each other. In this case, by projecting the ridge 28 in the middle of the outward flange 22, the connection plate 27 can be disposed in a state where the connecting plate 27 is positioned inside the ridge 28. In order to further strengthen the connection of the profile members 26, the contact portions of the profile members 26 may be entirely or partially welded.

At the tips of the outward flange 22 and the inward flange 24, thick portions 2 for reinforcement are respectively provided.
2a and 24a are formed. Although not shown in FIG. 7, the ridges 28 of the outward flange 22 and the thick portions 24a are formed.
The packing 60 is bonded between the two.

On the other hand, the upper frame 30 is
, A rectangular frame body 33 slidably fitted in the frame body 23, an outward flange 31 extending outward from an upper end of the frame body 33, and an upper surface of the outward flange 31. And an engagement receiving portion 34 projecting from the inner wall surface of the frame main body 33 in an inverted L-shaped cross section. The upper frame 30 is, as shown in FIG.
, An outward flange 31 extending outward from the upper end of the vertical piece 35, a mounting groove 32 protruding from the upper surface of the outward flange 31, and an outward flange 31 of the vertical piece 35. Are formed by joining, at right angles, four sections 36 formed of, for example, an extruded section made of aluminum and having a locking receiving section 34 projecting in an inverted L-shape on the surface on the side opposite to the section. ing. The mounting groove 32
Is provided with a groove having the same pitch as the pitch of the screws of the fixing bolt 70.

In this case, the end of the profile 36 is cut at 45 degrees so that the adjacent profiles 36 abut each other, and the L is straddled over the lower surfaces of the outward flanges 31 of the adjacent profiles 36. The connecting member 37 having a U-shape is bonded by an adhesive to form the
Are connected to each other (see FIG. 5). In this case, by projecting the ridge 38 at the intermediate portion on the lower surface side of the outward flange 31, the connection plate 37 can be disposed in a state where the connecting plate 37 is positioned inside the ridge 38. In order to further strengthen the connection of the profiles 36, the contact portions of the profiles 36 may be entirely or partially welded.

At the tip of the outward flange 31,
A thickened portion 31a for reinforcement is formed, and a packing 60 is bonded between the thickened portion 31a and the ridge 38 of the outward flange 31. A locking ridge 39 extending in the horizontal direction is provided on the upper side of the outer surface of the frame main body 33 (vertical piece 35), and the locking ridge 39 is provided on the frame main body 23 (of the lower frame 20). The upper end of the vertical piece 25) can be engaged.

In the above description, the case where the mounting portion is formed by the mounting groove 32 has been described. However, the mounting portion does not necessarily have to be the mounting groove 32, and for example, as shown in FIG. A nut 32A fixed to the upper surface of the flange 31 by welding or the like may be used.
As shown in (b), a nut 32B fixed by welding or the like to the upper surface of a bracket 30a fixed to the distal end side of the outward flange 31 by, for example, welding may be used. In addition, since it is sufficient that at least four attachment portions are provided, if the attachment portions are provided on two opposing sides of the upper frame 30, the filter unit F can be slid on the other two sides, and the filter The replacement of the unit F can be facilitated. Therefore, when the mounting portion is formed by the mounting groove 32, the mounting groove 32 may be provided only on the upper surface of the outward flange 31 on the two opposing sides of the upper frame 30, as shown in FIG.

On the other hand, as shown in FIG. 8, the rectifying plate 80 has a dish-shaped base 82 having a large number of small holes 81 and the opening side is expanded, and extends outward from the opening edge of the base 82. It is mainly composed of a mounting flange 83. Note that a seal packing 60 </ b> A is attached to a tip edge of the mounting flange 83. As shown in FIG. 9, the current plate 80 configured as described above is mounted on the upper frame 30 with the mounting flange 83 placed on the inward flange 24 of the lower frame 20 connected to the upper frame 30 with the connecting screw 50. The other piece 92 of the pressing member 90 having a substantially L-shaped cross section, with which the piece 91 is engaged with the locking receiving portion 34 provided on the frame 30, is attached to the upper surface of the mounting flange 83 to be attached to the ventilation port.

The connection duct 40 is, as shown in FIGS. 1 and 10, a box-shaped main body 4 opening downward.
One of the openings has an outward flange 42, and a mounting flange 44 for forming a mounting hole 43 is provided on two sides facing the outward flange 42. A connection port 45 is provided at the center of the top of the box-shaped main body 41, and a flexible duct 46 connected to an air duct (not shown) is connected to the connection port 45.

Next, a procedure for mounting the filter unit F will be described. In mounting the filter unit F, the upper frame 30 and the lower frame 20 are formed in advance in a factory by the above-mentioned profiles 26 and 36. Then, first, the outward flange 22 of the lower frame 20 is brought into contact with the lower surface of the side of the ceiling panel 10 disposed on the ceiling via the packing 60. Next, the upper frame 30 is placed in the frame body 23 of the lower frame 20.
And the outer flange 31 of the upper frame 30 is brought into contact with the upper surface of the ceiling panel 10 via the packing 60 so that the outer flange 22 of the lower frame 20 and the outer flange of the upper frame 30 are inserted. 31 and ceiling panel 10
Sandwich. In this state, the connecting member, that is, the connecting screw 50 is attached to the lower frame 2 from the inner wall surface of the frame main body 33 of the upper frame 30.
The lower frame 20 and the upper frame 30 are connected and fixed by screwing to the frame bodies 23 and 33 of the upper frame 30 and the lower frame 20. In this way, the ceiling panel 10 is attached to the four sides of the lower frame 20 and the upper frame 30 to form the ventilation holes. In addition, the profile 3 shown in FIG.
Caulking seals (not shown) are applied to the contact portions 36A between the six.

After the vent is formed as described above, the mounting flange 83 of the rectifying plate 80 is placed on the inward flange 24 of the lower frame 20 located in the vent.
By pressing the other piece 92 of the holding member 90 having a substantially L-shaped cross section with which the piece 91 is engaged with the locking receiving portion 34 provided on the upper frame 30 against the upper surface of the mounting flange 83, the rectifying plate is formed in the ventilation port. Attach 80. In this case, the pressing members 90 are disposed on the four sides of the frame body 33 of the upper frame 30, respectively, and press and hold the four sides of the current plate 80.

Next, the outward flange 3 of the upper frame 30 will be described.
1 through the packing 60 on the upper surface of the filter unit F.
Is placed on the upper surface of the filter unit F,
The connection duct 40 is placed via the, and the connection duct 40 is opposed to the upper frame 30. Then, a fixing member, for example, a fixing bolt 70 penetrating through the mounting hole 43 of the mounting flange 44 of the connection duct 40 is fastened to a mounting portion, for example, the mounting groove 32 provided on the upper frame 30 to clamp and fix the filter unit F. Thereafter, the connection port 45 of the connection duct 40 and the air duct (not shown) are connected by the flexible duct 46, and the mounting operation is completed.

When the filter unit F is to be replaced, the filter unit F can be pulled out to the side and replaced after loosening the fastening of the fixing bolt 70 to release the fixed state of the filter unit F.

In the above embodiment, the mounting structure of the clean room filter unit F has been described. However, it is needless to say that filter units other than the clean room can be similarly mounted. Further, the present invention can be applied to, for example, a lighting unit or an air conditioning unit other than the filter unit.

[0036]

As described above, since the present invention is configured as described above, the following excellent effects can be obtained.

(1) According to the first aspect of the present invention, the lower frame having the communication opening and the upper frame are slidably fitted to each other, so that the lower frame and the upper frame have an outward flange and the ceiling panel. Since the frame bodies of the lower frame and the upper frame are connected to each other by the connecting member in a state where the ceiling panel is sandwiched with the sealing member interposed therebetween, the ceiling panel and the upper frame and the lower frame are air-tightly connected. And the vents of the filter unit can be easily formed.

(2) According to the second to fifth aspects of the present invention, the filter unit is sandwiched and fixed between the upper frame constituting the ventilation port and the connection duct, so that the filter unit can be supported by the ceiling panel. At the same time, the connecting portion can be made airtight. Further, by releasing the fastening between the fixing member and the mounting portion, the filter unit can be removed only by work outside the clean room.

(3) According to the sixth aspect of the present invention, the rectifying plate can be hermetically and easily attached to the ventilation port by using the inward flange and the pressing member provided on the lower frame. Therefore, in addition to the above (1) and (2), further purified clean air can be efficiently supplied into the clean room.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an example of a filter unit mounting structure of the present invention.

FIG. 2 is an enlarged sectional view of a ceiling panel mounting portion according to the present invention.

FIG. 3 is an enlarged sectional view of a mounting portion of the filter unit according to the present invention.

FIG. 4 is a sectional perspective view showing a part of an upper frame according to the present invention.

FIG. 5 is a perspective view showing a part of the upper frame.

FIG. 6 is a sectional perspective view showing another form of the upper frame.

FIG. 7 is a perspective view showing a part of a lower frame according to the present invention in cross section.

FIG. 8 is a perspective view showing a part of the current plate in the present invention in cross section.

FIG. 9 is a cross-sectional perspective view showing a state where the current plate is mounted.

FIG. 10 is an exploded perspective view showing the filter unit and an upper frame.

FIG. 11 is a cross-sectional view showing a conventional filter unit mounting structure.

FIG. 12 is an exploded perspective view showing a mounting portion of a conventional filter unit.

[Explanation of symbols]

 F Filter unit 10 Ceiling panel 20 Lower frame 21 Communication port 22 Outward flange 23 Frame body 24 Inward flange 30 Upper frame 31 Outward flange 32 Mounting groove (mounting part) 32A, 32B Nut (mounting part) 33 Frame main body 34 Stop portion 40 Connection duct 44 Mounting flange 46 Flexible duct 50 Connection screw (connection member) 60 Packing (seal member) 70 Fixing bolt (fixing member) 80 Rectifier plate 81 Small hole 83 Mounting flange 90 Press member

Claims (6)

[Claims] 1. A lower frame having an outward flange abutting on a lower surface of a ceiling panel below a frame main body having a communication port; a frame main body slidably fitted to the frame main body of the lower frame; An upper frame having an outward flange on which the filter unit is mounted on the upper portion of the frame body, a connecting member for connecting the frame bodies of the lower frame and the upper frame, and a filter unit for connecting the duct and the filter unit And a fixing member for fixing the upper frame to the connection duct that sandwiches and opposes the filter unit, and includes an outward flange of the lower frame and the upper frame, and the ceiling. A filter unit, wherein the frame bodies of the lower frame and the upper frame are connected to each other by the connection member in a state where the ceiling panel is sandwiched between the panel and the sealing member. Mounting structure of. 2. A lower frame having an outward flange abutting on a lower surface of a ceiling panel below a frame main body having a communication port; a frame main body slidably fitted to the frame main body of the lower frame; An upper frame having an outward flange on which the filter unit is mounted on the upper portion of the frame body, a connecting member for connecting the frame bodies of the lower frame and the upper frame, and a filter unit for connecting the duct and the filter unit And a fixing member for fixing the upper frame and the connection duct that sandwiches and opposes the filter unit, and a sealing member is provided on the outward flange of the upper frame. The filter unit is placed with the interposition thereof, the connection duct is placed on the upper surface of the filter unit with a seal member interposed therebetween, and penetrates the mounting flange provided on the connection duct. The fixing member, and fastened to the mounting portion provided on the outward flange of the upper frame, the mounting structure of the filter unit and the filter unit is sandwiched and fixed, characterized in that between the connecting duct and the upper frame. 3. The mounting structure for a filter unit according to claim 2, wherein the fixing member is formed by a bolt, and the mounting portion is formed by a mounting groove protruding on an upper surface of the outward flange. A mounting structure for a filter unit characterized by the following. 4. The filter unit mounting structure according to claim 2, wherein the fixing member is formed by a bolt, and the mounting portion is formed by a nut fixed to an upper surface of the outward flange. A mounting structure for a filter unit characterized by the following. 5. The mounting structure for a filter unit according to claim 2, wherein the fixing member is formed by a bolt, and the mounting portion is formed by a nut fixed to a side of the outward flange. A mounting structure for a filter unit, characterized in that: 6. The filter unit mounting structure according to claim 1, wherein an inward flange is formed at a lower portion of the lower frame, and the inward flange is opened downward on an inner surface of a frame main body of the upper frame. A stop portion is formed, and an edge of the current plate is placed on the inward flange, and a pressing member having a substantially L-shaped cross section is interposed between the edge of the current plate and the lock receiving portion. And a mounting structure for the filter unit, wherein the rectifying plate is fixed.