JP2014061507A - Connection structure of filter unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connection structure of filter units to be arranged on a ceiling which is connectable with adjacent filter units even when there are protrusions, e.g. heads of bolts and/or screws outside the filter units.SOLUTION: A connection structure of filter units is to be arranged on a ceiling, and two adjacent filter units each have an adjacent side wall and also have a protrusion(s) outside one or both the side walls. The two adjacent filter units are connected together by a connector connecting both the side walls with a spacer arranged between the side walls. The thickness of the spacer is equal to or greater than the minimal length between the side walls when the side walls are brought in mutual contact without arranging the spacer.

Description

  The present invention relates to a connecting structure of filter units arranged on a ceiling of a factory, a computer room, a hospital or the like.

  As shown in FIG. 6, the connection structure of filter units arranged on the ceiling of factories, computer rooms, hospitals, etc. is a structure in which a plurality of filter units including filters are connected. It was manufactured in a complicated process. First, a square plate made of a steel plate such as iron is prepared, and a plurality of panel plates in which end portions of the square plate are bent to form connection portions are manufactured. Next, these panel plates are combined and welded at the connecting portion to form a box shape, and further coated to produce an outer wall of one filter unit. Next, a partition for fixing a required filter element or fan is fixed to the inside of the outer wall by welding or the like, and then a mat of heat insulating material is attached to the inside and outside of the outer wall to produce one filter unit. . In FIG. 6, the outer heat insulating material 175 is represented by oblique lines. FIG. 7 shows a cross-sectional view of the main part of FIG. 7A is an enlarged cross-sectional view of part A of FIG. 6, FIG. 7B is an enlarged cross-sectional view of part B of FIG. 6, and FIG. 7C is an enlarged cross-sectional view of part C of FIG. , (D) is an enlarged sectional view of a portion D in FIG.

  Next, after suspending a plurality of filter units on the ceiling at the installation site, as shown in FIG. 7, the side walls 120, 120 ′ of each filter unit 110, 110 ′ are connected by a connector 150 such as a bolt. Connect and assemble the connection body. Next, caulking 160 is applied to the connecting portion of the portion to be ejected into the room to prevent the condensed water from dripping down into the room, thereby forming a connecting structure for the filter unit.

  However, since such a filter unit is coated, there is a problem that the manufacturing cost increases. Further, there is a problem that distortion occurs due to welding, and a slight gap is generated at the connecting portion of the filter unit, and dew condensation occurs in the gap. Then, although use of the hot dip galvanized steel plate which does not require a painting was examined, there existed a problem that white smoke was produced at the time of welding and working environment worsened. Then, the joining with a volt | bolt and a screw was examined, without welding steel plates. However, in this case, the heads of bolts and screws protrude to the outside of the hot dip galvanized steel sheet, and when trying to connect the filter units, they overlap with the bolts and screw heads of adjacent filter units, creating a gap between the outer walls. Therefore, there was a problem that condensation occurred.

  The present invention solves the above-described problem and relates to a filter unit connection structure disposed on a ceiling. Even if there are protrusions such as bolts or screw heads on the outside of the filter unit, An object of the present invention is to provide a coupling structure of filter units that can be coupled.

In order to solve the above problems, the invention according to claim 1 is a coupling structure of filter units arranged on a ceiling,
Two adjacent filter units each have side walls adjacent to each other, and have protrusions outside one side wall or outside both side walls,
Two adjacent filter units are connected by a connector for connecting both side walls in a state where a spacer material is provided between both side walls, and the thickness of the spacer material is such that the spacer material is arranged. The solution is a coupling structure of filter units characterized in that it is equal to or longer than the shortest distance between both side walls when both side walls are brought into contact with each other.

  The present invention relates to a connecting structure for filter units arranged on a ceiling, and a filter unit that can be connected to an adjacent filter unit even if there are protrusions such as bolts or screw heads outside the filter unit. It has become possible to provide a connection structure.

BRIEF DESCRIPTION OF THE DRAWINGS It is a general view which shows an example of the connection structure of the filter unit of this invention, (a) is a top view at the time of looking down at a connection structure from upper direction, (b) is a side view, (c) is It is an elevation view, and (d) is a plan view when the connection structure is looked up from below. It is principal part sectional drawing of the connection structure of the filter unit of this invention, (A) is an expanded sectional view of A part of FIG. 1, (B) is an expanded sectional view of B part of FIG. FIG. 2C is an enlarged cross-sectional view of a portion C in FIG. 1, and FIG. 4D is an enlarged cross-sectional view of a portion D in FIG. It is a perspective view explaining the assembly of the connection structure of the filter unit of this invention. It is a perspective view explaining the principal part of FIG. It is a general view which shows another example of the connection structure of the filter unit of this invention, (a) is a top view, (b) is an elevation view. It is a general view which shows the connection structure of the conventional filter unit, (a) is a top view at the time of looking down at a connection structure from upper direction, (b) is a side view, (c) is an elevation view (D) is a plan view when the connection structure is looked up from below. It is principal part sectional drawing of the connection structure of the conventional filter unit, (A) is an expanded sectional view of the A section of FIG. 6, (B) is an expanded sectional view of the B section of FIG. ) Is an enlarged cross-sectional view of a portion C in FIG. 6, and (D) is an enlarged cross-sectional view of a portion D in FIG. 6.

  Hereinafter, embodiments of a coupling structure of filter units according to the present invention will be described in detail.

  The connection structure of the filter unit of the present invention is a connection structure of the filter units 10 and 10 'arranged on the ceiling as illustrated in FIGS. 1 to 3, and the two adjacent filter units 10 and 10' are mutually connected. It has adjacent side walls 20, 20 ', and has a protrusion 25 outside one side wall 20 or outside both side walls 20, 20'. Are connected by a connector 50 that connects both side walls 20 and 20 'in a state in which the spacer material 35 is disposed between both side walls 20 and 20'. It is characterized in that the distance is not less than the shortest distance between both side walls 20 and 20 ′ when the both side walls 20 and 20 ′ are brought into contact with each other without providing the spacer material 35.

  FIG. 1 is an overall view showing an example of a connection structure (hereinafter, simply referred to as a connection structure) of a filter unit of the present invention. FIG. 1A is a plan view when the connection structure is looked down from above. It is a figure, (b) is a side view, (c) is an elevation view, (d) is a top view at the time of looking up a connection structure from the downward direction. In FIG. 1, eight fan filter units 11 in which the fan 15 and the HEPA filter 17 are accommodated in the filter unit 10, two filter units 12 in which only the HEPA filter 17 is accommodated, and two operating lights The support member penetrating unit 13 is connected to form a connection structure. The surgical light is a lighting fixture used in the operating room of hospitals, etc. The upper part of the surgical light support member is fixed to the ceiling of the building frame, and the upper part hangs down like a pipe and the lower part can be refracted It is a support member that has a simple arm shape and has a surgical light fixed to the lower end. Then, the operating light support member penetrating panel 14 having a hole through which the pipe-like portion of the supporting member passes is attached to the operating light support member penetrating unit 13. The filter unit 12 adjacent to the fan filter unit 11 forms a communication part in which the ventilation openings 28 and 28 ′ are connected to each other, and the air flow generated in the fan filter unit 11 is adjacent via the communication part. It flows into the filter unit 12. Further, the surgical light support member penetrating unit 13 is connected to the adjacent fan filter unit 11 or filter unit 12 without forming a communication portion.

  As shown in the side view (b) of FIG. 1, in the fan filter unit 11, the air flow generated by the fan 15 diffuses in the diffusion chamber 18 and changes its direction downward, and the HEPA filter 17 disposed below. It is structured to be supplied indoors. Further, as shown in a plan view (d), a blow-out punching metal plate 19 is disposed at the outlet of the HEPA filter 17, and this punching metal plate 19 can be removed for replacement of the HEPA filter 17. Yes. Moreover, the member of the shaded part shown by (a)-(c) has shown the heat insulating material 75 affixed on the outer side of each unit.

  As illustrated in FIG. 3, the filter unit 10 is surrounded by an outer wall composed of a ceiling wall 22 and a side wall 20. A side end portion of the side plate constituting the side wall 21 adjacent to the side wall 20 is bent, and the bent portion and the side plate constituting the side wall 20 are coupled by a screw 23, and a head portion of the screw 23 is formed. Protrudes outward from the side wall 20 and forms a first protrusion 25. Moreover, the upper end part of the side plate which comprises the side wall 20 is bent, and this bending part and the ceiling plate which comprises the adjacent ceiling wall 22 are couple | bonded with the screw | thread 24. FIG.

  In FIG. 3, a frame for disposing the fan inside the filter unit 10 (or the fan filter unit 11) is provided between the side wall 20 and the side wall on the opposite side. Are fixed by a plurality of screws 26. The head portion of the screw 26 protrudes outward from the side wall 20 to form a second protrusion 25. Further, a frame for housing the filter 17 is provided inside the filter unit 10 between the side wall 20 and a side wall on the opposite side, and the frame has a plurality of screws (not shown) on the side wall 20. It is fixed by. And the head part of these screws protrudes outside from the side wall 20, and forms the 2nd protrusion. Further, a flange (not shown) is provided inside the filter unit 10 to connect the ventilation port 28 of the filter unit 10 and the ventilation port 28 ′ of the filter unit 10 ′ (or the filter unit 12) to form a communication part. The flange 80 'is also installed inside the filter unit 10', and a ventilation portion can be formed by tightening both flanges via packings 82 and 82 '. .

  3 has two types of protrusions 25 on the outside of the side wall 20 of the filter unit 10 and two types of protrusions 25 ′ on the outside of the filter unit 10 ′. In a state where the spacer material 35 is disposed between both the side walls 20 and 20 ′, and further, the heat insulating materials 40 and 40 ′ are disposed on the side walls 20 and 20 ′ excluding the position of the spacer material 35, An assembly view connecting both side walls 20, 20 'is shown. Further, a cross-sectional view after connection is shown in FIG.

  2A is an enlarged cross-sectional view of portion A in FIG. 1, FIG. 2B is an enlarged cross-sectional view of portion B in FIG. 1, and FIG. 2C is an enlarged cross-section of portion C in FIG. FIG. 4D is an enlarged cross-sectional view of a portion D in FIG. FIG. 3A is a view showing a cross section around the first protrusion 25 in the description of FIG. 3, but it can also be said to be a view showing a cross section around the second protrusion 25. (A) In the figure, protrusions 25 and 25 'due to screw heads protrude from both side walls 20 and 20', and two adjacent filter units 10, 10 'are connected to both side walls 20 and 20'. In the state where the spacer material 35 (30 and 30 ′) is arranged between the two, the side walls 20 and 20 ′ are connected by the connector 50, and the thickness of the spacer material 35 is determined by the spacer material 35. The distance is equal to or longer than the shortest distance between the side walls when the side walls 20 and 20 'are brought into contact with each other without 35.

  Further, heat insulating materials 40 and 40 ′ are attached to the outside of the side walls 20 and 20 ′ at portions other than the positions of the spacer materials 30 and 30 ′, and condensed water generated between the side walls 20 and 20 ′. Is prevented. In addition, although the said heat insulating material can be arrange | positioned only on the outer side of one side wall of 20 and 20 ', and can also be arrange | positioned on the outer side of both side walls 20, 20', it is a connection structure of a filter unit. In order to form, it is preferable in terms of manufacturing or assembling to connect a plurality of filter units of the same standard, and therefore, as illustrated in FIGS. 2A and 3, both side walls 20, 20 ′ face each other. It is preferable that it is the heat insulating materials 40 and 40 'arrange | positioned so that it may face | match a position. Further, it is preferable that the heat insulating materials 40 and 40 'have the same height. Further, the lower end portions of both side walls 20 and 20 ′ are subjected to coking 60 in preparation for the case where condensed water is generated. In the present invention, as compared with the coking 160 shown in FIG. 7A of the prior art, a coking portion having a wide thickness corresponding to the thickness of the spacer material 35 can be secured, so that the coking can be reliably performed. According to the prior art, since the width of the caulking portion is narrow, there is a difficulty in performing the caulking reliably. Further, heat insulating materials 70 and 70 'are affixed to the insides of the side walls 20 and 20' to prevent the generation of condensed water occurring outside the side walls 20 and 20 'and have a sound absorbing function. In FIG. 5A, blowout metal plates 19 and 19 ′ for blowing airflow from the filter 17 into the room are disposed below the filter units 10 and 10 ′. , 19 ′ can be removed for replacement of the HEPA filter 17.

  The protrusion is not particularly limited as long as it is a protrusion that protrudes to the outside of at least one of the side walls 20, 20 '. For example, the protrusion may form an outer wall of the filter unit or may form an internal structure. And protrusions such as screws and bolts generated by the above, and protrusions by a bent portion for joining the side wall 20 and the side wall 21. Further, a protrusion that protrudes only outside one side wall, a protrusion that protrudes outside both side walls, or a protrusion that is formed by overlapping at least part of the protrusions protruding outside both side walls may be mentioned. it can. In order to form a filter unit connecting structure, it is preferable in terms of manufacturing or assembling that a plurality of filter units of the same standard are connected. Therefore, the surface symmetry of the both side walls protrudes to face each other. It is preferable that the protrusion has a shape.

  As the height of one protrusion, 0.8 to 19 mm is applicable, and 1.9 to 19 mm is more practical, and 1.9 to 15 mm is more practical. For example, a protrusion due to a bent portion for joining the side wall 20 and the side wall 21 may be 1 mm or more, and a protrusion due to a rivet head may be 0.8 to 1.9 mm. If it is a head, it may be 1.9 to 15 mm. When the height exceeds 19 mm, it is necessary to increase the height of the spacer, and there is a case where the insulating material stuck on the spacer is excessively swollen by that portion, so that it is difficult to connect both the side walls 20, 20 ′. In addition, the amount of heat-insulating material for preventing condensation is increased between the side walls 20 and 20 ', and the installation cost may become too high.

  The spacer material can be disposed between both side walls 20 and 20 ', and the thickness of the spacer material when the both side walls 20 and 20' are brought into contact with each other without providing the spacer material. As long as it is more than the shortest distance between both side walls, it will not specifically limit, A block shape or a plate-shaped thing is mentioned. Although it depends on the arrangement location, it is also preferable that a hole through which the connector 50 passes is formed in the spacer material as illustrated in FIG. Moreover, it is preferable that it is a rigid metal or resin which does not deform | transform at the time of the connection by the connector 50. FIG. As a method for arranging the spacer material, the spacer material is bonded to one side wall 20 or both the side walls 20, 20 'with an adhesive, or the spacer material is secured to the side wall so that the tip of the spacer material does not protrude with screws or bolts. The method of fixing to can be mentioned.

  In addition, the spacer material can be disposed only on the outer side of one of the side walls 20 and 20 ′, or can be disposed on the outer side of both side walls 20 and 20 ′. In order to form a body, it is preferable in manufacturing or assembling to connect a plurality of filter units of the same standard, and as shown in FIG. 2 (A), both side walls 20, 20 'are located at positions facing each other. It is preferable that the spacer members 30 and 30 ′ have a plane-symmetric shape and are arranged so as to face each other. The heights of the spacer materials 30 and 30 'are preferably the same height.

  In the present invention, the thickness of the spacer material 35 is equal to or greater than the shortest distance between the side walls when the side walls 20 and 20 'are brought into contact without the spacer material 35 being disposed. . Here, the thickness of the spacer material 35 means the thickness of the spacer material when the spacer material is disposed only on the outer side of one of the side walls 20, 20 ′. When arranged on the outer side of each ', it means the sum of the thicknesses of the two spacer members that are overlapped when both side walls 20, 20' are brought into contact with each other.

  Specifically, the thickness of the spacer material 35 is preferably 2 to 20 mm, more preferably 4 to 20 mm, and more preferably 4 to 16 mm, although it depends on the height of the protrusion. Further preferred. As the size of the spacer, when the spacer is polygonal, the length of the maximum diagonal is preferably 10 to 100 mm, and more preferably 25 to 60 mm. In the case of a circle or an ellipse, the maximum diameter is preferably 10 to 50 mm, and more preferably 15 to 30 mm.

  Further, the shortest distance between the two side walls 20 and 20 ′ when the both side walls 20 and 20 ′ are brought into contact with each other is such that the both side walls 20 and 20 ′ are gradually brought into contact with each other. As a result of approaching, it says the distance when contacting. If there are protrusions of various shapes and heights, according to this definition, the distance between the two side walls when the protrusion 25 with one side wall 20 and the other side wall 20 'come into contact with each other. , The distance between the two side walls when the projection 25 ′ with the other side wall 20 ′ and one side wall 20 abut or the projection with the projection 25 with one side wall 20 and the other side wall 20 ′ It becomes the longest distance among the distances between the side walls when the object 25 'comes into contact. Thus, in the present invention, the thickness of the spacer material 35 is equal to or greater than the shortest distance between the side walls when the side walls 20 and 20 'are brought into contact without the spacer material 35 being disposed. Therefore, the distance between the side walls 20 and 20 'can be set to a predetermined value.

  The connector is not particularly limited as long as it can connect both the side walls 20 and 20 ′ with the spacer material 35 disposed between the both side walls 20 and 20 ′. As exemplified in FIG. 2, it is possible to employ a connector 50 made of bolts and nuts or the like. In FIG. 2, the spacers 30, 30 ′ with holes in the center are overlapped, and the side walls 20, 20 ′ are connected so that the connector 50 penetrates into the holes. Yes. As a result, two adjacent filter units 10, 10 'are connected.

  2C and 2D are enlarged cross-sectional views of a C portion and a D portion in FIG. 1, respectively. FIG. 4 shows an assembled perspective view of this portion. In this portion, as described above, a communication portion in which the ventilation port 28 of the fan filter unit 11 and the ventilation port 28 ′ of the filter unit 12 are connected is formed, and the air flow generated in the fan filter unit 11 causes this communication portion to be connected. It flows into the adjacent filter unit 12 via the first and second filters. Further, a flange 80 (not shown) is disposed around the ventilation hole 28 of the filter unit 10, and the flange 80 is fixed to the side wall 20 by a bracket 84 (not shown), so that the circumference of the ventilation hole 28 is obtained. Is reinforced. Similarly, a flange 80 ′ is disposed around the ventilation hole 28 ′ of the filter unit 10 ′, and the flange 80 ′ is fixed to the side wall 20 ′ by a bracket 84 ′ to reinforce the periphery of the ventilation hole 28 ′. ing.

  In this communication portion, spacer materials 30 and 30 ′ are arranged at four corners around the flanges 80 and 80 ′. Specifically, the spacer materials 30 and 30 ′ are flanged on both side walls 20 and 20 ′. It is screwed together with the brackets 84 and 84 'of 80 and 80', and the distance between both side walls 20 and 20 'is kept at a predetermined width. Between the ventilation openings 28 and 28 'to which the flanges 80 and 80' are fixed, two packings 82 and 82 ', and a rigid plate 81 made of metal or the like is disposed at the center of the packings, These flanges 80, 80 ′, ventilation openings 28, 28 ′, packings 82, 82 ′, and rigid plate 81 are each provided with a hole 85 so that the second connector 83 penetrates. Then, by inserting the second connector 83 into these holes and tightening between the air vents 28 and 28 'by the second connector 83 from the outside of the flanges 80 and 80', the fan filter unit 11 and While connecting with the filter unit 12, airtightness between the vent holes 28 and 28 'is reliably maintained by the action of the packings 82 and 82'. In the present invention, since the distance between both side walls 20 and 20 'is kept at a predetermined width by the spacer material 35, thick packings 82 and 82' are used in the examples of FIGS. 2 (C) and 2 (D). Therefore, since the cushioning effect is excellent, there is an advantage that the airtightness between the ventilation openings 28 and 28 'is excellent. According to the prior art shown in FIGS. 7C and 7D, in order to directly connect both the side walls 120 and 120 ′, when the side walls 120 and 120 ′ are partially distorted, There was a problem that the airtightness between 128 and 128 'could not be maintained.

  As described above, in the present invention, the flanges 80 and 80 ′ are disposed inside the ventilation ports 28 and 28 ′ in the communication portion where the ventilation port 28 of the fan filter unit 11 and the ventilation port 28 ′ of the filter unit 12 are connected. And between each ventilation port 28 and 28 ', two packing 82 and 82' and the rigid board 81 are arrange | positioned in the center of these packing, and flange 80, 80 'is carried out by the 2nd connector 83. It is preferable to connect the fan filter unit 11 and the filter unit 12 by tightening the space between the ventilation openings 28 and 28 'so as to narrow the interval.

  The shape of the packings 82 and 82 'and the rigid plate 81 is preferably a ring shape or a square ring shape so as to conform to the shapes of the flanges 80 and 80' as illustrated in FIG. As the material of the packings 82 and 82 ', nitrile rubber, silicon rubber, fluorine rubber, or the like can be used. Further, as illustrated in FIGS. 2C and 2D, the second connector 83 may employ a connector 83 made of a bolt and a nut or the like.

  In FIG. 2 (C), as in FIG. 2 (A), heat insulating materials 40 and 40 ′ made of foamed polyethylene or the like are provided outside the side walls 20 and 20 ′ except for the positions of the spacer materials 30 and 30 ′. It is affixed and the generation | occurrence | production of the dew condensation water produced between both side walls 20, 20 'is prevented. Further, heat insulating materials 70 and 70 'made of glass wool or the like are affixed to the inner side of the side walls 20 and 20' to prevent the formation of condensed water on the outer side of the side walls 20 and 20 'and to have a sound absorbing function. doing. Further, in FIG. 2D, heat insulating materials 72 and 72 ′ made of glass wool or the like are attached to the inside of the ceiling walls 22 and 22 ′, and the generation of dew condensation water that occurs outside the ceiling walls 22 and 22 ′. In addition to preventing, it has a sound absorbing function.

  FIG. 2B is an enlarged cross-sectional view of a portion B in FIG. 1, and illustrates an aspect of the end of the filter unit 10 or the end of the connection structure of the filter unit. One end of a panel frame 90 having an L-shaped cross section is attached to a lower end portion outside the side wall 20 of the filter unit with a screw 91 via a second spacer material 31, and the other end of the panel frame 90 is a ceiling board. 92 abuts. Further, a heat insulating material 40 made of foamed polyethylene or the like is affixed to the outside of the side wall 20 at a portion other than the position of the second spacer material 31 to prevent the formation of condensed water due to contact between the side wall 20 and the outside air. . A heat insulating material 73 made of foamed polyethylene or the like is attached to the inner wall of the panel frame 90, and a heat insulating material 74 made of foamed polyethylene or the like is also attached between the heat insulating material 73 and the ceiling board 92. A heat insulating material 70 made of glass wool or the like is affixed to the inside of the side wall 20 to prevent the generation of condensed water occurring outside the side wall 20 and to have a sound absorbing function. Further, a heat insulating material 71 made of glass wool or the like is also affixed to the inside of the bottom plate 29 of the filter unit 10 to prevent the generation of condensed water occurring outside the bottom plate 29 and to have a sound absorbing function. The bottom plate 29 can be opened and closed for fan maintenance.

  An example of a method of installing the filter unit connection structure illustrated in FIG. 1 will be described. First, eight fan filter units 11, two filter units 12 in which only the HEPA filter 17 is accommodated, The shadow lamp support member penetrating unit 13 is prepared, and each unit is equipped with an internal device and attached with various heat insulating materials. Next, the first unit is suspended from the frame on the ceiling, and the unit adjacent to the unit is suspended from the frame on the ceiling and connected to the first unit by the connector 50. After twelve units are sequentially connected by such a method, the panel frame 90 is attached to the lower end of each unit so as to contact the ceiling board 92.

  In the present invention, the size of the filter unit is not particularly limited, but in the case of the filter unit connecting structure shown in FIG. 1, the length of the fan filter unit 11 is preferably 800 to 2500 mm, and preferably 800 to 2000 mm. More preferably. In addition, if it is the filter unit 12 which does not incorporate a fan, it is preferable that length is 300-1500 mm, and it is more preferable that it is 400-1300 mm. Moreover, it is preferable that it is 300-1500 mm in width, and it is more preferable that it is 400-1300 mm. Moreover, it is preferable that it is 200-800 mm in height, and it is more preferable that it is 300-800 mm.

  As the side walls 20 and 20 ', the ceiling wall 22, and the bottom plate 29 constituting the coupling structure of the filter unit of the present invention, materials that cannot be welded or materials that deteriorate the working environment at the time of welding can be applied. A metal plate or a resin plate can be used. Among these, a metal plate is preferable because it can be easily bent. Moreover, as a metal plate, the metal which does not rust and the thing which carried out the plating process are preferable, and when a workability and material cost are considered, it is preferable that it is a hot dip galvanized steel plate. In addition, among the hot dip galvanized steel sheets, “ZAM” (hot dip galvanized steel sheet having a plating layer mainly composed of 6% aluminum and 3% magnesium) manufactured by Nisshin Steel Co., Ltd., which has a relatively low aluminum ratio, and Shin “Superdimer” made by Nippon Steel (hot dip galvanized steel sheet having a plating layer mainly composed of 11% aluminum, 3% magnesium and 0.2% silicon) is more preferable because it is more excellent in corrosion resistance. It can be said that it is a material. Further, as the spacer material or the rigid plate, a metal or a resin plate can be used, but a metal plate is preferable because it can be easily bent. Moreover, as a metal plate, the metal which does not rust or the thing which carried out the plating process is preferable, and aluminum, iron, stainless steel, etc. can be used. As the heat insulating material, glass wool, foamed polyethylene, foamed polyurethane and the like can be used. Among them, glass wool having excellent sound absorbing performance is preferable for interior use, and foamed polyethylene having excellent heat insulating performance is preferable for exterior use. As the packing, a rubber sheet, a sheet made of Teflon (registered trademark), or the like can be used. Among these, a rubber sheet is preferable.

  In FIG. 1, a filter unit connection structure including eight fan filter units 11, two filter units 12, and two surgical light support member penetrating units 13 is shown as an example. The number is not particularly limited as long as the number is a range to which the present invention is applied. Further, the fan filter unit does not necessarily need to be included, and the connection structure can be configured only from the filter unit 12 as illustrated in FIG. FIG. 5A is a plan view of the connection structure, and FIG. 5B is an elevation view. In FIG. 5, six filter units 12 containing only the filter 17 are connected and arranged on the ceiling, and the fan 15 and the directly expanded coil 93 are built in the fan coil unit 94 installed on the indoor floor. The air adjusted by the fan coil unit 94 is supplied by the duct 95 to the filter unit 12 constituting the connection structure. Further, in FIG. 5, two surgical lamp support member penetration panels 14 are arranged adjacent to the connection structure so that the surgical lamp support member penetrates.

10, 10 'Filter unit 11 Fan filter unit 12 Filter unit 13 Operating light support member penetration unit 14 Surgical light support member penetration panel 15 Fan 17 Filter, HEPA filter 18 Diffusion chamber 19 Punching metal plate 20, 20' Side wall 21 Side wall 22 Ceiling wall 23, 24 Screw 25, 25 'Projection 26, 27 Screw 28, 28' Ventilation hole 29 Bottom plate 30, 30 ', 35 Spacer material 31 Second spacer material 40, 40' Heat insulating material 50 Connector 60 Caulking 70, 70 ′, 71, 72, 72 ′, 73, 74, 75 Heat insulating material 80, 80 ′ Flange 81 Rigid plate 82, 82 ′ Packing 83 Second connector 84, 84 ′ Bracket 85 Hole 90 Panel frame 91 Screw 92 Ceiling board 93 Direct expansion coil 94 Fan coil unit 95 Duct 110, 110 ' Motor unit 120, 120 'sidewalls 128, 128' vents 150 consolidated 160 coking 175 heat insulator

Claims (1)

A coupling structure of filter units arranged on the ceiling,
Two adjacent filter units each have side walls adjacent to each other, and have protrusions outside one side wall or outside both side walls,
Two adjacent filter units are connected by a connector for connecting both side walls in a state where a spacer material is provided between both side walls, and the thickness of the spacer material is such that the spacer material is arranged. It is more than the shortest distance between both side walls when trying to contact | abut both side walls without contacting, The connection structure of the filter unit characterized by the above-mentioned.

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