JP3892554B2 - Air filter mounting structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an air filter mounting structure for mounting a single or a plurality of air filter units to an air outlet of a duct chamber.
[0002]
[Prior art]
There are various known techniques for mounting the air filter, and for example, Japanese Utility Model Publication No. 4-14105 can be cited. FIG. 3 of Japanese Utility Model Publication No. 4-14105 discloses a structure in which an air filter is fastened and fixed with a stud bolt to a filter mounting frame provided in the chamber via a gasket. In FIG. A hanging edge (flange) of an air filter frame mounting body provided inside the unit frame of the chamber is hermetically connected to an air tight seal provided at an opening edge of the air inflow side of the air filter frame of the filter, and the unit frame An air filter frame support body provided in an inwardly protruding air filter frame support housing provided in a projecting manner on the inner side of the air filter frame and engaged with the air outflow side opening edge of the air filter frame. A structure in which a bolt is tightened and airtightly fixed via an air tight seal packing is disclosed.
[0003]
[Problems to be solved by the invention]
FIG. 3 of the Japanese Utility Model Publication No. 4-14105 has a problem that dust leaks into the clean room between the air filter and the filter mounting frame or from the welded portion of the stud bolt of the filter mounting frame. In addition, there is a problem that air stays in a useless space required for tightening the stud bolt and causes dust leakage. In addition, the thing shown in FIG. 2 does not have the above-mentioned problem, but the air filter frame support provided at the air outflow side opening edge of the air filter frame is a separate body from the air filter frame, There is a problem that the mounting structure of the air filter frame is somewhat complicated and the mounting property is inferior. Note that Japanese Utility Model Publication No. 4-14105 does not disclose a technique for fixing a plurality of air filters adjacent to each other.
[0004]
The present invention was devised in view of the above circumstances, and an air filter unit having an integral structure can be reliably and easily attached to a duct chamber, and a single and a plurality of air filter units can be mounted. An object is to provide an air filter mounting structure that can be easily mounted.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, an air filter mounting structure according to the present invention is an air filter mounting structure for connecting and fixing an air filter unit to a duct chamber suspended from a ceiling housing as described in claim 1. The duct chamber is at least a box-like member that forms an air outlet at the lower side, and the air filter unit includes an air filter and a filter mounting frame that surrounds the air filter unit. The filter chamber is closely attached to the filter mounting frame via a sealing material, and the lower side is detachably fixed to the lower surface of the mounting frame. The filter mounting frame is configured to close the air outlet. housed coupled within the air filter unit is comprised of a plurality of ones, housed in said duct chamber adjacent to each other d Filter units to each other is characterized in that which is fixed through a connector.
[0007]
An air filter unit having a unit structure is housed and connected in an air outlet formed below a duct chamber suspended from the ceiling housing. The air filter unit includes an air filter and a filter mounting frame, and can be assembled in advance as a unit. Therefore, the assembling operation is completed if the air filter unit is housed and connected in the air outlet of the duct chamber. Therefore, the assembly is extremely easy. Further, since the air filter unit is unitized, it is possible to create a highly flexible one. Moreover, it is easy to attach a plurality of air filter units, and it can easily cope with a large air outlet.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of an air filter mounting structure according to the present invention will be described below in detail with reference to the drawings.
FIG. 1 is a reference cross-sectional view for explaining the mounting structure of the air filter of the present invention shown in FIG. 7 , and FIG. 2 is a reference cross-sectional view illustrating one method for connecting the air filter unit to the duct chamber . It is. 3 to 5 are views showing an air filter unit, and FIG. 6 is a view showing an example of a sealing material. FIG. 7 is a cross-sectional view showing a mounting structure of a plurality (two) of air filter units.
[0009]
As shown in FIG. 1, the duct chamber 1 is suspended and fixed to the ceiling housing 21 by a connector 22. The duct chamber 1 has a box-like shape, and in this example, a ceiling plate 23 that is closely connected to the ceiling casing 21, an outer frame plate 24 that hangs vertically from the periphery thereof, and a lower end of the outer frame plate 24. A bent portion 25 that is bent in the horizontal direction, a flange portion 26 that is bent vertically upward from the inner edge of the bent portion 25, and a rib 27 that is bent outward at substantially right angles from the upper edge of the flange portion 26. Consists of. In addition, the flange part 26 becomes a peripheral edge of the air outlet 28.
[0010]
As shown in FIGS. 1 and 3 to 5, the air filter unit 2 includes an air filter 3, a filter mounting frame 5, and a sealing material 6, and has a unit shape as described above.
[0011]
The air filter 3 includes a filter pack 3a that cleans air and an air filter frame 4 that surrounds and closely contacts the filter pack 3a. The air filter frame 4 includes a side wall portion 8 that is in close contact with and surrounds the outer periphery of the filter pack 3a, and a frame body portion 10 that is formed thereabove to form a groove portion 9 and the like. In addition, the side wall part 8 consists of a hollow frame-shaped thing which forms the space part 11. FIG. A fixing member 12 is formed below the side wall 8 so as to protrude outward from the peripheral edge thereof. As shown in FIG. 3, in this example, the fixing member 12 is formed only on a part of the lower peripheral edge of the side wall portion 8, but it may be formed over the entire lower peripheral edge.
[0012]
Next, the structure of the filter mounting frame 5 will be described. The filter mounting frame 5 is formed of a box-shaped frame body in which an air circulation hole 13 is formed on the inner side and air circulation ports 14 and 15 are formed on the upper and lower sides. The air filter 3 is accommodated in the inside where the air circulation ports 14 and 15 are formed. The filter mounting frame 5 includes an outer peripheral frame 16 disposed so as to surround the side wall portion 8 with an appropriate space from the side wall portion 8 of the air filter frame 4, and inward from substantially above the outer peripheral frame 16 toward the inner side. A folded portion 17 formed by bending, an upper flange portion 18 bent downward from the end portion of the folded portion 17 at a substantially right angle, and bent inward at a substantially right angle from below the outer peripheral frame 16. The fixing member receiving portion 19 and the lower flange portion 20 and the like which are bent at a substantially right angle upward from this end portion. In this example, the lower flange portion 20 is formed only on a part of the lower peripheral edge of the outer peripheral frame 16, but may be formed on the entire lower peripheral edge. Further, the upper flange portion 18 surrounds the upper air circulation port 14, and the inner edge of the fixing member receiving portion 19 and the lower flange portion 20 also surround the lower air circulation port 15.
[0013]
FIG. 6 shows a schematic structure of the sealing material 6. The sealing material 6 has a sealing property. For example, a jelly-like sealing agent made of a viscoelastic material such as silicone gel having adhesive force and elasticity as disclosed in Japanese Patent Application Laid-Open No. 59-193112. Is preferred. Of course, it is not limited to this.
[0014]
Next, an assembling method of the air filter unit 2 will be described with reference to FIGS. First, the sealing material 6 shown in FIG. 6 is inserted into the groove portion 9 of the frame body portion 10 of the air filter frame 4 of the air filter 3. The air filter 3 in the above state is inserted into the filter mounting frame 5 from the air circulation port 15 below the filter mounting frame 5. As a result, the upper flange portion 18 of the filter mounting frame 5 enters the groove portion 9, and the tip of the upper flange portion 18 is pressed against the sealing material 6. Further, the outer surface of the side wall portion 8 of the air filter frame 4 abuts on the lower flange portion 20 of the filter mounting frame 5 and is positioned at the center. Further, the upper flange portion 18 is pressed almost perpendicularly to the sealing material 6 in a state where the upper flange portion 18 is positioned substantially at the center of the groove portion 9. In this state, as shown in FIG. 4, the air filter 3 and the filter mounting frame 5 are integrally fixed by inserting a screw 29 into the shield pop nut 30 from below the fixing member 12 and fixing the air filter unit 2. Become.
[0015]
As shown in FIG. 2, the duct chamber 1 is fixed to the ceiling housing 21 by a connector 22. The air filter unit 2 assembled in an integrated structure is inserted into the air outlet 28 of the duct chamber 1 in this state. The outer peripheral frame 16 of the filter mounting frame 5 is guided and centered by the flange portion 26 of the duct chamber 1. Next, as shown in FIG. 1, the air filter unit 2 is housed and fixed in the duct chamber 1 by connecting the outer peripheral frame 16 and the flange portion 26 with a connecting tool 31 such as a rivet (closed type). The As described above, in the case of the air filter mounting structure of the present invention, the air filter unit is mounted very easily and reliably. In addition, even if the size and shape of the air filter 3 change, it is sufficient to form the filter mounting frame 5 in a shape corresponding to the air filter 3 to form a unit, and an air filter mounting structure with high flexibility can be obtained.
[0016]
FIG. 7 shows an embodiment of an air filter mounting structure according to the present invention in which a plurality (two in the drawing) of air filter units 2 and 2 are housed and fixed in a duct chamber 1 adjacent to each other. . The air filter units 2 and 2 are of the same shape in this example, and the structure thereof is the same as that described above, and redundant description is omitted. Each air filter unit 2, 2 is joined adjacently before being housed in the duct chamber 1, for example. That is, the air filter units 2 and 2 are connected to each other by connecting the adjacent outer peripheral frames 16 and 16 of the respective filter mounting frames 5 and 5 by the connecting tool 32. Of course, after the air filter units 2 and 2 are accommodated in the duct chamber 1, the air filter units 2 and 2 may be connected by the connector 32. The two air filter unit groups integrated as described above are inserted into the air outlet 28 of the duct chamber 1 to connect the outer peripheral frame 16 of the filter mounting frame 5 and the flange portion 26 of the duct chamber 1. The air filter units 2 and 2 are housed and fixed in the duct chamber 1 by being connected by the tool 31.
[0017]
In the above description, the duct chamber 1 having the shape shown in FIG. 1, FIG. 2, FIG. 7 and the like is adopted, but it is of course not limited to this shape.
[0018]
【The invention's effect】
1) According to the air filter mounting structure of the present invention, the air filter and the filter mounting frame are unitized, and the air filter unit is housed and fixed in the duct chamber, so mounting work is extremely easy. There is an effect that is surely performed.
2) Further, according to the air filter mounting structure of the present invention, even when there are a plurality of air filter units, each air filter unit can be easily connected, and the plurality of air filter units can be easily placed in the duct chamber. And can be securely stored and fixed.
[Brief description of the drawings]
FIG. 1 is a reference cross-sectional view for explaining an air filter mounting structure according to the present invention. FIG. 2 is a reference cross-sectional view for explaining a state in which an air filter unit is attached to a duct chamber. FIG. 4 is a cross-sectional view taken along line AA in FIG. 3. FIG. 5 is a cross-sectional view taken along line BB in FIG. 3. FIG. 6 is a perspective view of the sealing material according to the present invention. FIG. 7 is a cross-sectional view showing a mounting structure of an air filter containing two air filter units.
DESCRIPTION OF SYMBOLS 1 Duct chamber 2 Air filter unit 3 Air filter 3a Filter pack 4 Air filter frame 5 Filter mounting frame 6 Sealing material 8 Side wall part 9 Groove part 10 Frame body part 11 Space part 12 Fixing member 13 Air flow hole 14 Air flow port 15 Air flow Port 16 Peripheral frame 17 Folding part 18 Upper flange part 19 Fixing member receiving part 20 Lower flange part 21 Ceiling housing 22 Connector 23 Ceiling plate 24 Outer frame plate 25 Bending part 26 Flange part 27 Rib 28 Air outlet 29 Screw 30 Pop Nut 31 coupling tool 32 coupling tool

Claims (1)

An air filter mounting structure for connecting and fixing an air filter unit to a duct chamber suspended from a ceiling housing, wherein the duct chamber is formed at least in a box shape having an air outlet at the bottom, and the air filter unit Comprises an air filter and a filter mounting frame surrounding the air filter. The air filter has an upper side in close contact with the filter mounting frame through a sealing material, and a lower side which is detachable from the lower surface of the mounting frame. The filter mounting frame is housed and connected in the duct chamber so as to close the air outlet , and the air filter unit is composed of a plurality of parts and is adjacent to the duct. Eafiru characterized in that the air filter unit between which is accommodated in the chamber is intended to be fixed through a connector Mounting structure of.

Images