KR20030060020A - Open plenum ceiling system - Google Patents

Abstract

PURPOSE: An open plenum ceiling system is provided to simplify the structure of installation by widening the distance between main frames and module frames based on deflection and yield stress and shorten the time and the cost of manufacturing. CONSTITUTION: The open plenum ceiling system contains: numbers of main bars(22) located at a certain distance from a ceiling and dividing the upper area of a clean room; a connecting member(50) used to join one main frame and another; a hanging bracket attached to the main frame and connected with the hanger; a joint member(40) connecting main bars coming from three different directions; numbers of module bars(72) with connecting grooves whose bar length is shorten by half the length of the main bar; seating frames(70) dividing the area into smaller and more sections; hangers(60) joining the main frames with the seating frames; Therefore the rim of a fan filter is seated on the projected lower wing of the module bar.

Description

Open Plenum Ceiling System

The present invention relates to an open plenum sealing system, and more particularly, a main frame and a module frame for fixing a fan filter unit positioned at an upper portion of a clean room and emitting a clean air stream, and a support structure and a coupling structure of these frames are changed. The present invention relates to an open plenum sealing system, which simplifies work and induces a smoother air flow.

In general, a clean room is a space for ultra-high density work, and various types of systems are in operation to remove minute foreign matters that are fatal to work including dust in the air floating in the clean room. There is a method of installing a duct and supplying air to the work space, and a clean air stream is circulated with the work space through the plenum, a space formed on the outer periphery of the work space.

Here, the system using the plenum is made so that the clean air discharged from the fan filter unit (FFU) installed in the upper portion of the clean room is circulated to the top through the plenum formed on the bottom and sidewalls to flow back into the fan filter unit.

In the above system, in order to secure a space and mount a fan filter unit in the conventional upper plenum, two or more main bars installed to be connected to the ceiling while being spaced downward are fastened to each other on the same plane and spaced downward from the main bar. Two or more of the plurality of module bars installed in connection with the main bar were made to be fastened to each other on the same plane.

The main bar and the module bar are divided into a long axis and a short axis, the long axis and the short axis are fastened orthogonal to each other, and the module bar is partitioned so that the fan filter unit is seated and installed, and the main bar is approximately four sections of the module bar. It is divided into rectangles of about the size.

In addition, the short axis of the main bar and the long axis of the module bar had the same length, the length of the long axis of the main bar was equal to the length of the sum of several short axis forming the four zones of the module bar, The long axis and the short axis of the module bar are connected to each other by a plurality of hangers.

Here, the main bar has a structure in which two steels (Steel) having a substantially rectangular cross section are in contact with one surface in consideration of the yield stress and the amount of deflection, and one side of which the central part is opened in the longitudinal direction is facing in the opposite direction.

However, in the connection structure of the main bar and the module bar, a large number of hangers should be installed on the major axis of the main bar and the shortening of the module bar, causing problems such as complexity of the installation structure, increase in manufacturing cost, and prolonged working period.

The present invention has been made in view of the above problems, the main frame and the module frame, the support structure and coupling structure of these frames by changing the deflection and yield stress in consideration of the installation while widening the connection position between the frame Its purpose is to provide an open plenum sealing system designed to simplify the structure, reduce manufacturing costs and shorten the working period.

1 is an exploded perspective view schematically showing the main parts of the open plenum sealing system according to the present invention;

Figure 2 is an enlarged perspective view of the mounting means of Figure 1,

3a and 3b are enlarged perspective views showing the fastening means of Figure 1 and other kinds of fastening means,

Figure 4 is an enlarged perspective view of the connecting means of FIG.

Figure 5 is an enlarged perspective view of the hanger means of Figure 1,

5A and 5B are enlarged perspective views of the main member of FIG. 5;

Figure 6 is an enlarged perspective view of the combination of Figure 1,

Figure 6a is an enlarged side view showing another kind of module bar;

6B to 6C are enlarged plan views and enlarged side views illustrating various kinds of combinations;

7 is an enlarged perspective view of the connector of FIG. 1;

7A is an enlarged perspective view showing another type of connector.

<Description of the symbols for the main parts of the drawings>

10 ... open plenum system 20 ... mainframe,

22 ... main bar 30 ... mounting means,

40 connection means 50 connection means,

56 anti-rotation bolt 60 hanger means,

68 ... R-bolt 70 ... curing frame,

72 ... module bar 80 ... assembly,

90 ... connector.

In order to achieve the above object, the present invention provides a clean room upper space divided by mainframes installed so as to be spaced apart from the ceiling and divided into two or more main bars intersecting on the same plane. And at least two module bars having a coupling groove having a portion of an upper surface opened and a bolt groove formed in a longitudinal direction at a distal end thereof while being positioned to be spaced downward from the main frame and having a lengthwise portion at an upper portion thereof. A plenum is formed on the outer periphery of the working space of the clean room so as to be subdivided again by a mounting frame which is intersected on the same plane and partitioned on all sides so as to have a reduced length of one or two times or more with respect to one side of the main bar of The lower end of the module bar forming the closed path of the mounting frame protrudes By mounting the rim portion on the receiving portion while the discharge flow cleaner downward from the fan filter unit removably mounted to the guide endless circulating inside the clean room is made a bet with the outside air of the clean room to be selectively ventilation.

The module bar further includes a wing bar formed in a longitudinal direction while being spaced apart at a predetermined interval from an upper side of the seating part, and having a protruding width, and one side portion of a rail bar that supports the edge of the fan filter unit is inserted between the wing bar and the seating part. Combined.

The material of the module bar is characterized in that the zinc or aluminum.

The main frame is fixedly spaced downward from the ceiling by mounting means for coupling the main bar and the anchor mounted on the ceiling of the clean room.

The mounting means includes a main bar hanging bracket fitted to cover a portion of the outer circumferential surface of the main bar, a long bolt having one end fastened with a nut to an upper portion of the main bar hanging bracket, and the other end of the long bolt fastened with a nut. It includes a mounting bracket fastened to the anchor.

The upper part of the long bolt of the main bar hanging bracket is fastened at least one or two times the thickness of the other side.

The main bar, which is cut and separated from the main bar, which is integrated at the intersection point formed on the main frame, is fastened to each other by fastening means.

The fastening means includes upper and lower fastening brackets facing the upper and lower intersections of the main bar, and a first U bolt fastened with a nut through the upper and lower fastening brackets while being fitted to surround the outer circumferential surface of the integral main bar. The second U bolt is inserted into the cut and separated main bar to surround the outer circumferential surface thereof and is fastened with a nut through the lower fastening bracket.

The main bar of the main frame is continuously installed in contact with each other by the connecting means.

The connecting means includes an upper connection bracket having two main ends bent outwards while the main bar surrounds a contact line corresponding to each other, and a lower connection bracket bolted while closing an open bottom surface of the upper connection bracket.

The bolt is formed integrally with the anti-rotation of the polyhedron between the head and the threaded thread.

The anti-rotation part of the bolt is fitted into the fastening groove of the upper connection bracket.

The module frame is fixedly spaced apart from the main frame by a hanger means.

The hanger means is fitted to surround a portion of the main bar outer circumference of the main frame while the hanging bolt is fastened to the bottom, the R-bolt is fixed to the head of the bolt groove formed in the module bar of the module frame, the hanging bracket It is coupled between the hanging bolt and the R-bolt and is rotated by an external force, and tightened with the nut is made to include a coupler for adjusting the distance between the main frame and the module frame.

The hanging bracket further includes a fastening part protruding from the lower surface thereof and refracted so that both ends thereof face each other, and a plate fastened to the hanging bolt is inserted into and coupled to the fastening part.

The plate is provided with a mounting groove formed with a stage to fasten the front end of the hanging bolt.

The R-bolts are heads downwardly inserted into the fastening grooves, and the heads are rounded at two corners diagonally positioned to only rotate at a predetermined angle while being rotated by a predetermined angle and fixed firmly. It consists of threaded threads.

The module bar of the module frame is continuously installed in correspondence to the extension by the coupling body interposed between the front end of the module bar.

The assembly is roughly the same as the outer shape of the module bar, the mounting groove having the same center as the bolt groove is formed to be bolted through the bolt groove formed in the front end of the module bar.

The combination is any one of the cross-type module bar is coupled in all directions, the three-way type that the module bar is coupled in three directions, the straight shape of the module bar is coupled in parallel, the square of the module bar is coupled to cross in two directions It is characterized by that.

An upper plenum and a work space communicate with each other at a center portion of the assembly to form a segment that can break so that power can be applied to an accessory such as a sprinkler or a light.

The module frame is mounted and mounted on the upper surface where the module bars are butted together so that the module bars cut and separated are integrally fastened to each other.

Two or more coupling holes are formed to engage the bolts while engaging the at least two module bars.

The connecting member is characterized in that any one of the cross-type, which is installed at the point crossing in four directions, the 3-way type is installed at the point crossing in three directions.

Hereinafter, an open plenum sealing system according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view schematically showing the main portion of the open plenum sealing system according to the present invention, so that the inside and the outside air is selectively ventilated while guiding the clean air flow formed in the outer periphery of the clean room and flowing inside the clean room. The upper part of the plenum 10 according to the present invention is spaced downwardly by the mounting means 30 from the ceiling of the clean room and fixed to the main frame 20 and the hanger means 60 from the main frame 20. It includes a mounting frame 70 is fixedly spaced apart by a downward position, the fan filter unit (not shown) is seated on the mounting frame (70).

The main frame 20 is installed so that two or more main bars 22 having a rectangular cross section intersect on the same plane and divided on all sides, and the main bars 22 are mounted on the ceiling of the clean room by the mounting means 30. The anchor 12 is fastened to each other, and is firmly fastened to each other by the fastening means 40 at the intersection of the main bar 22, and is mutually matched by the connecting means 50 at the distal end of the main bar 22. It is extended.

Here, the mounting means 30 is a nut 34a, a spring washer 34b and a plate washer (34a) on the top of the main bar hanging bracket 32 fitted to the main bar 22, as shown in FIG. One end of the long bolt 34 is fastened via 34c as a medium, and the mounting bracket 36 is fastened to the other end of the long bolt 34 via a nut 34a and washers 34b and 34c as a medium. The mounting bracket 36 is made to be mounted to the anchor 12.

In addition, when looking at the partial enlarged view "A", the upper surface of the main bar hanging bracket 32 is preferably one or two times the thickness of the other side in order to assist the fastening force with the long bolt (34).

The fastening means 40 is intended to fasten the main bar 22, the main bar 22a integral with the main bar 22b cut and separated in order to cross in detail on the same plane. In FIG. 3A in which the bar 22 is shown, the upper and lower fastening brackets 42 and 44 abut against the upper and lower points of the intersection where the main bar 22 intersects, and the upper and lower fastening brackets 42 and 44. The first U bolt 46 is fastened to cover the outer circumferential surface of the integrated main bar 22a while penetrating through the lower fastening bracket 44 while covering the outer circumferential surface of the cut and separated main bar 22b. The second U bolt 48 is made to be fastened. The first and 2U bolts 46 and 48 are fastened to the lower fastening bracket 44, the nut 44a, the spring washer 44b, and the plate washer 44c by a medium.

In addition, the fastening means 40 has two types of the 3-way type shown in FIG. 3B for fastening the main bar 22 intersecting in three directions together with the cross type shown in FIG. 3A.

The connecting means 50 is for the main bar 22 to be continuously installed on the extension line is extended to be installed as shown in Figure 4, the other two main bar 22 wraps the contact line contacted on the extension line both ends The upper connecting bracket 52 bent outwardly is installed, and the lower connecting bracket 54 contacting the lower surface of the main bar 22 while closing the open lower surface of the upper connecting bracket 52 is the upper connecting bracket. 52 and the anti-rotation bolt 56 is fastened.

In addition, the anti-rotation bolt 56 is formed integrally with the anti-rotation portion 56c of the polyhedron between the head portion 56a and the threaded portion (56b), the anti-rotation bolt 56 is the upper connection bracket When the nut 54a, the spring washer 54b, and the plate washer 54c are fastened to the 52 and the lower connection bracket 54, the anti-rotation part 56c is provided at both ends of the upper connection bracket 52. It fits in the fastening groove 52a formed in the. Of course, the fitting groove 52a must have the same shape as the rotation preventing portion 56c in order to be fitted.

The hanger means 60 connecting the main frame 20 and the mounting frame 70 fixedly spaced apart from the main frame 20 to be fastened to each other is illustrated in FIGS. 1 and 5 to 5b. Similarly, one end of the hanging bolt 64 is a nut 64a, a spring washer 64b, a plate washer at the bottom of the hanging bracket 62 fitted to cover a part of the outer circumferential surface of the main bar 22 of the main frame 20. 64C is fastened by a medium, one end of the coupler 66 is fastened to the other end of the hanging bolt 64 by a nut 66a, and the other side of the coupler 66 has two nuts 66a and 66b. ), The spring washer 66c and the plate washer 66d are fastened to the R-bolt 68, and the head 68a of the R-bolt 68 is a bolt groove of the module bar 72 to be described later. It is fixed by being rotated 90 degrees while being fitted vertically downward to 72a.

Here, rotating the coupler 66 coupled to the hanging bolt 64 and the R-bolt 68 adjusts the distance between the main bar 22 and the module bar 72, and the nut 66a Tighten tightly with the coupler 66 to fix the position of the coupler 66, the nut 66b is tightened to fix the R-bolt 68 to the module bar 72.

In addition, the R-bolt 68 is composed of a rounded head 68a having two rounded corners, which are approximately rectangular and diagonal, and a threaded screw 8b, wherein the head 68a is When the cross section is approximately rectangular and the center of the upper surface is vertically inserted into the bolt groove 72a of the module bar 72 which is open in the longitudinal direction, and then rotated 90 ° in the fastening direction by using the rounded corner, further rotation is regulated. When the R-bolt 68 is separated from the bolt groove 72a, the R-bolt 68 may be rotated by 90 ° in the opposite direction to be lifted upward.

The hanging bracket 62 further includes a fastening portion 62a protruding from the lower surface thereof and refracted so that both ends thereof face each other, and the plate 62b to which the hanging bolt 64 is fastened to the fastening portion 62a. ) Is inserted and coupled to assist the fastening of the hanging bracket 62 and the hanging bolt 64. The mounting bolts 62c formed in the plate 62b are provided with ends to make the hanging bolt 64 more firmly coupled.

The hanger means 60 is fastened to the module bar 72 parallel to the main bar 22 while being fastened to the main bar 22 located in the longitudinal or transverse direction of the main frame 20. That is, the main bar 22 is continuously connected to the module bar 72 one by one in a way.

On the other hand, the mounting frame 70, as shown in Figure 1, two or more of the plurality of module bars 72 is 1 times or 2 with respect to one side of the main bar 22 between the intersections formed in the main frame 20 Crossed on the same plane to have a reduced length of more than two times to install the partitions, between the front end of the module bar 72 is mounted so that the coupling body is interposed between the module bar 72 is continuously matched to extend Installed, the module bar 72 is firmly fastened to each other by the connector 90 at the intersection.

The module bar 72 has a coupling groove 72a having a portion of an upper surface opened while being formed in a lengthwise direction at an upper portion thereof, a bolt groove 72b formed in a longitudinal direction at the center of the tip portion thereof, and both lower ends thereof are refracted outwardly. The seating portion 72c is formed to be mounted to the edge of the fan filter unit, the body is divided into a plurality of spaces to reduce the external force while reducing the weight, the material is preferably zinc or aluminum.

Here, one compartment formed as a closed path by mutual coupling of the module bar 72 is a space in which the edge portion of the fan filter unit is mounted on the seating portion 72c of the module bar 72, and the main frame ( One compartment formed in 20) is divided in size up to 4x2.

In order to add convenience to the assembly of the fan filter unit seated on the module bar 72, the shape of the module bar 72 may be changed. As shown in FIG. 6A, the seating portion 72c of the module bar 72 is changed. Wing bar (72d) is further formed in the longitudinal direction while being spaced apart by a predetermined distance to the upper side, and the rail bar (72e) in which the edge of the fan filter unit is mounted between the wing bar (72d) and the seating portion (72c) One side portion of the) is coupled to the structure, by slightly lifting the fan filter unit to remove the rail bar (72e) between the wing bar (72d) and the seating portion (72c), the fan filter unit can be easily removed The convenience of the operator is further emphasized. Of course, binding is the reverse of desorption.

The coupling 80 is interposed between the tip of the module bar 72 and bolted to be installed so that the module bar 72 is continuously matched to the extension, as shown in Figure 6, the combination 80 is another 4 Interposed between the tip of the two module bars 72, and then bolted through the bolt groove 72b formed in the module bar 72 and the mounting groove 82 formed in the assembly 80. At this time, the bolt may be a wrench bolt, the bolt may be combined by electric drill or by hand.

In addition, the combination 80 is in contact with the front end of each of the module bar 72 to be connected and matched with the module bar 72 while the upward projecting portion to distribute the external force applied to the assembly 80 While having a plurality of ribs that are formed to maximize stress. If necessary, the assembly 80 may be manufactured at a height to be abutted by excluding a coupling groove 72a of the module bar 72. And, in the center of the combination 80 is formed a segment 84 that can be broken so as to communicate the upper plenum and the work space as needed in order to be able to suspend various accessory materials such as sprinklers or lights.

6B to 6E, the module bar 72 is cross-connected in all directions, and the three-way type in which the module bar 72 is coupled in three directions, as shown in FIGS. 6B to 6E. There is a straight line that the module bar 72 is coupled in equilibrium, and a square shape in which the module bar 72 is crossed in two directions.

The connecting body 90 is a module bar 72, in order to fasten the module bar 72f integral with the module bar 72g which is cut and separated to cross on the same plane in detail. In FIG. 7 in which 22 is shown, the R-bolt 68 is engaged with the upper portion of the module bars 72f and 72g at the intersection where the module bars 72f and 72g intersect.

Referring to FIGS. 7 and 7A, the connecting member 90 is formed of a lower portion having a plurality of protrusions engaged with at least two coupling holes 92 and an upper portion of the module bar 72. Types of the 90 include a cross type provided at a point where the module bar 72 crosses in four directions, and a three-way type provided at a point where the module bar 72 crosses in three directions.

Briefly explaining the system of the present invention configured as described above compared with the prior art, one compartment formed in the main frame by changing the support structure and coupling structure of the frame in consideration of the amount of deflection and yield stress is 4 × 2 in the mounting frame It is divided into two times the conventional partitioned size, and the work position is minimized by reducing the number of parts by increasing the fastening position of the main frame and the module frame to 2 times the conventional, as well as the convenience of the work is improved to shorten the working time It works.

Claims (24)

The upper space of the clean room is largely divided by the main frame installed so as to be spaced apart from the ceiling and two or more main bars having a rectangular cross section intersect on the same plane. Positioned apart from the main frame, the two or more plurality of module bars having a coupling groove formed in the longitudinal direction on the upper part of the upper surface and a bolt groove formed in the longitudinal direction at the distal end between the intersections formed on the main frame A plenum is formed on the outer periphery of the clean room so that the upper part is subdivided by a mounting frame intersected on the same plane and divided into four sides so as to have a reduced length of one or two times the main bar. The lower end of the module bar constituting the closed path of the mounting frame is mounted to the seating portion formed by protruding the edge portion of the clean room while guiding the clean air discharged downward from the detachable seated fan filter unit to circulate infinitely inside the clean room. Open plenum sealing system, allowing the outside air to be selectively ventilated. The method of claim 1, The module bar further includes a wing bar formed in a longitudinal direction while being spaced apart at a predetermined interval from an upper side of the seating part, and having a protruding width. Open plenum sealing system, characterized in that coupled. The method according to claim 1 or 2, An open plenum sealing system, characterized in that the material of the module bar is zinc or aluminum. The method of claim 1, The main frame is an open plenum sealing system, characterized in that the position is fixed to be spaced downward from the ceiling by a mounting means for coupling the main bar and the anchor mounted on the ceiling of the clean room. The method of claim 4, wherein The mounting means includes a main bar hanging bracket fitted to cover a portion of the outer circumferential surface of the main bar, a long bolt having one end fastened with a nut to an upper portion of the main bar hanging bracket, and the other end of the long bolt fastened with a nut. Open plenum sealing system, characterized in that it comprises a mounting bracket fastened to the anchor portion. The method of claim 5, The upper part of the main bar hanging bracket is fastened to the long bolt is an open plenum sealing system, characterized in that more than one or two times the thickness of the other side. The method of claim 1, Open plenum sealing system, characterized in that the main bar is cut and separated from the main bar integrally formed at the intersection point formed on the main frame are fastened to each other by fastening means. The method of claim 7, wherein The fastening means includes upper and lower fastening brackets facing the upper and lower intersections of the main bar, and a first U bolt fastened by nuts through the upper and lower fastening brackets while being fitted to surround the outer circumferential surface of the integral main bar. And a second U bolt inserted through the lower fastening bracket and fastened with a nut while being inserted to cover the outer circumferential surface of the cut and separated main bar. The method of claim 1, The main bar of the main frame is open plenum sealing system, characterized in that the installation is continuously extended to correspond to the connecting means. The method of claim 9, The connecting means may include an upper connection bracket having two main ends bent outwards while the main bar surrounds a contact line corresponding to each other, and a lower connection bracket bolted while closing an open bottom surface of the upper connection bracket. Open plenum sealing system. The method of claim 10, The bolt is an open plenum sealing system, characterized in that the anti-rotation portion of the polyhedron is integrally formed between the head and the threaded thread. The method of claim 11, The anti-rotation part of the bolt is fitted to the fastening groove of the upper connection bracket, the open plenum sealing system. The method of claim 1, The module frame is fixed to the position spaced apart from the main frame by a hanger means that the open plenum sealing system. The method of claim 13, The hanger means is fitted to surround a portion of the main bar outer circumference of the main frame while the hanging bolt is fastened to the bottom, the R-bolt is fixed to the head of the bolt groove formed in the module bar of the module frame, the hanging bracket An open plenum sealing system, comprising a coupler fastened between a hanging bolt and an R-bolt to be rotated by an external force and tightened with a nut to adjust a gap between the main frame and the module frame. The method of claim 14, The hanging bracket further includes a fastening part protruding from a lower surface thereof and refracted so that both ends face each other, and a plate fastened to the hanging bolt is inserted into and coupled to the fastening part. The method of claim 15, Open plate plenum sealing system, characterized in that the plate is formed with a mounting groove is formed so that the leading end of the hanging bolt is fastened. The method of claim 14, The R-bolts are heads downwardly inserted into the fastening grooves, and the heads are rounded at two corners diagonally positioned to only rotate at a predetermined angle while being rotated by a predetermined angle and fixed firmly. Open plenum sealing system, characterized in that consisting of threaded threads. The method of claim 1, The module bar of the module frame is an open plenum sealing system, characterized in that the installation is continuously extended to correspond to each other by a coupling interposed between the front end of the module bar. The method of claim 18, Opening plenum sealing system, characterized in that the outer shape is substantially similar to the outer shape of the module bar, the mounting groove having the same center as the bolt groove is formed to be bolted through the bolt groove formed in the front end of the module bar. The method of claim 19, The combination is any one of the cross-type module bar is coupled in all directions, the three-way type that the module bar is coupled in three directions, the straight shape of the module bar is coupled in parallel, the square of the module bar is coupled to cross in two directions Open plenum sealing system characterized in that the. The method according to any one of claims 18 to 20, Open plenum sealing system, characterized in that the upper plenum and the working space is in communication with the center of the combination is formed to break so that power can be applied to the accessory, such as a sprinkler or electric light. The method of claim 1, The module frame is an open plenum sealing system, characterized in that the module bar is mounted and mounted on the upper surface of the module bar is bonded to each other so that the module bar is cut and separated to be firmly fastened together. The method of claim 22, The connection body is an open plenum sealing system, characterized in that at least two coupling holes are formed so as to be bolted while mating with at least two upper module bars. The method of claim 22 or 23, The connecting body is an open plenum sealing system, characterized in that any one of the cross-type is installed at the intersection point in four directions, the 3-way type is installed at the intersection point in three directions.