JP6238637B2 - Grid system ceiling air conditioning chamber - Google Patents

Description

The present invention relates to an air conditioning chamber device that is provided on a grid type system ceiling employed as a ceiling of a floor of an office building or the like and is used when air conditioning air is supplied from the ceiling surface.

In recent years, grid type system ceilings have been adopted in office buildings and the like in which partition installation, lighting equipment, air conditioning equipment, and the like can be freely changed and set. Such a grid type system ceiling is formed by crossing and suspending metal wires called T-bars to form a grid, and a plate body serving as a ceiling surface is attached to the opening surface of the grid. The air-conditioning equipment and the like are installed on the back side of the ceiling surface.

Meanwhile, the radiant air conditioner described in Patent Document 1 is adopted from the viewpoint of energy saving and comfort, instead of the convective air conditioner that cools or warms and circulates the conventional air itself. This radiant air conditioner is intended to cool (or heat) the surface of the part of the room, such as the ceiling and walls, and to obtain a cool feeling (warm feeling) using heat transfer with the surface of the human body. Cold / hot water (or cooling air or heating air) is used as a heat medium for cooling (or warming) the surface of the part constituting the room.

Moreover, in this patent document 1, in order to solve the problem which radiation air conditioning has, it is a radiation panel arrange | positioned on the ceiling surface of the system ceiling of an air-conditioned room as what took in radiation and convection in a good balance. A radiant panel having a heat medium flow path for flowing at least one of cold water and hot water as a heat medium, and a radiation plate formed with a plurality of vent holes for receiving and radiating heat from the heat medium flowing through the heat medium flow path; An air conditioning system including a blower that allows air to flow through air holes formed in the radiating panel has been introduced.
JP 2006-214696 A

In such a system ceiling, when performing the above-mentioned radiant air conditioning where the ceiling surface is used as a cooling surface (or heating surface), it is necessary to construct a chamber for air conditioning ventilation that can cool (or heat) the system ceiling surface uniformly. It becomes. Therefore, a method of sending conditioned air directly into the space in the ceiling and cooling (or warming) the ceiling surface from the back of the ceiling is conceivable, but it is very difficult to uniformly reach the target temperature on the ceiling surface. In addition, since the conditioned air is sent to the entire back of the ceiling, its capacity increases, which is uneconomical.

Further, there is a method of constructing a grid-like air vent box of 600 squares to 640 squares for each grid on the structure of the system ceiling, and individually supplying air-conditioned air to each air vent box by a duct. However, there is a problem that a huge amount of duct construction occurs.

Furthermore, in order to ensure the specified performance as an air conditioning chamber, specialized duct construction procedures without air leakage and heat insulation construction to suppress the heat loss of air conditioning air are required, but general-purpose system ceilings are industrialized. In addition, since it is very easy to assemble in the field, when considering the adaptability of the air conditioning chamber to the system ceiling, a simple construction method is required as with the ceiling body.

The present invention has been made in view of these points, and in the case of performing radiation air-conditioning with a grid-type system ceiling, it eliminates the need for duct construction as much as possible, can be easily constructed, and the ceiling surface is uniform. An object of the present invention is to solve the above problems by providing an air conditioning chamber apparatus that can easily achieve a desired target temperature.

According to the first aspect of the present invention, in the air conditioning chamber apparatus used in the grid type system ceiling, the opening and the bottom of the grid are opened to have substantially the same shape and the same size, and the lower portion has a rectangular shape in plan view and a certain length. A substantially cylindrical box having a roof with front and rear openings is formed on the frame, and the other of the frame of the box from one side below the outer end face at both ends located below the opening of the roof the concave portion is provided over the side, fitted with a plate body forming the ceiling surface with a plurality of through holes for each of a plurality of successive said grid, a plurality of continuous installed covering the box from above, these adjacent each box The frame is arranged so that the concave portions at the lower portions of the outer end surfaces of the pair of opposite ends of the frame body are opposed to each other, and the T bars forming one side of the grid are accommodated in the opposed concave portions, and the outside of the frame body of each adjacent box End face & roof Parts closely connected combined mintues, closing the front end face of the box to be installed in the front end of said box, connecting the supply port of the duct connected to the air conditioner to an opening surface of the rear surface of the box to be installed in the rear end Then, air conditioned air is sent into each grid through each box, and the air conditioned air that moves through the lower layer collides with the frame of the box and falls, contacts the plate body, and the air A part of the air-conditioning chamber device is a grid-type system ceiling that is configured to pass through the through-hole of the plate body and cool or heat the plate body.

The invention of claim 2 is the system ceiling air conditioning chamber device according to claim 1, wherein the roof shape of each box is a trapezoid whose width becomes narrower as the cross section of the upper portion goes upward.

According to a third aspect of the present invention, there is provided packing on the connecting surfaces of the boxes and the contact surfaces of the plate bodies and the frame bodies of the boxes, and the boxes are fixed with a fixture. The above-described system ceiling air-conditioning chamber apparatus.

According to a fourth aspect of the present invention, a piece of a substantially crank-type fall prevention tool is attached to and suspended from the frame on both sides of the box, and a key piece of the other piece of the fall prevention tool is erected from the system ceiling. The system ceiling air-conditioning chamber apparatus according to any one of claims 1, 2, and 3 , which is attached to the head of a T bar that is hooked from below.

According to the first aspect of the present invention, when radiant air-conditioning is performed using a grid type system ceiling, an enormous amount of ducts are not required, and it can be easily constructed without special technology for duct construction. It is possible to provide an air conditioning chamber device that can easily adjust the temperature of the surface.

For this reason, the construction of radiant air conditioning in various buildings can be made very speedily, and the construction of ducts is made unnecessary as much as possible, thereby reducing costs and contributing to the promotion of radiant air conditioning. .

In addition, if a failure occurs in some boxes after the chamber device is installed, it is possible to replace only the box where the failure occurred by disconnecting the connection with each box before and after the box, and workability is improved. Good, cost can be reduced.

According to the invention of claim 2, since the box has a trapezoidal shape whose width becomes narrower as it goes upward, the inside of the box in a state where a framework supporting the ceiling surface is formed. It has excellent portability into the ceiling, portability during construction, and ease of installation. Moreover, the length of the junction part when connecting each box can be shortened, and the airtightness of a chamber is improved.

According to the invention of claim 3, since the packing surface is provided on the connection surface between the boxes and the connection surface with the plate on which each box is mounted, and each box is fixed with the fixture, the airtightness is high, and the air conditioning Air from the machine can be more reliably transferred into the grid without waste, and it is more efficient.

According to a fourth aspect of the present invention, a piece of a substantially crank-type anti-tip device is attached to and suspended from both sides of the box, and a key piece of the other piece of the anti-tip device is erected from the system ceiling. Since the box is hooked and attached to the head of the T-bar from below, the box is firmly pressed from both sides to the plate that constitutes the ceiling, and contributes to maintaining airtightness in the box. In this shock, the chamber device does not fall down, and the device is highly reliable.

In Embodiment 1 of this invention, it is a perspective view which shows the image which installs the box of the chamber apparatus for an air conditioning in a grid type system ceiling. It is a block diagram which shows the outline of the chamber apparatus for air conditioning of the grid type | system | group ceiling of Embodiment 1 of this invention. It is a partial cross section figure which shows the connection lower part of the frame of the adjacent box of Embodiment 1 of this invention. It is a side view of the front end side of the air-conditioning chamber apparatus of Embodiment 1 of this invention. It is a front end view of the rear end box of Embodiment 1 of the present invention. It is a rear view of the rear end box of Embodiment 1 of this invention. It is a side view by the side of the rear end of the air-conditioning chamber apparatus of Embodiment 1 of this invention. It is a partial cross section figure which shows the attachment condition of the fall prevention tool of Embodiment 1 of this invention. When conditioned air is flowed into the air conditioning chamber apparatus of Embodiment 1 of the present invention, the airflow flowing through the upper layer is transferred to the former, the airflow flowing through the lower layer hits the frame body, descends and contacts the ceiling surface, A part of it is an end view showing a state of flowing from the through hole into the room.

(Embodiment 1)
Hereinafter, an air conditioning chamber apparatus A of a grid type system ceiling (hereinafter simply referred to as “system ceiling”) B according to Embodiment 1 of the present invention will be described with reference to the drawings. As shown in FIGS. 1 and 2, the air conditioning chamber device A of the system ceiling B is provided with an air conditioning chamber device A on the back of the ceiling of the system ceiling B, and an air conditioner of a machine room is installed in the chamber device A. The air conditioning air sent from C is sent to cool or heat the plate body 22 that forms the ceiling surface that serves as the radiation plate, and is generally a plurality of boxes made of glass wool boards that form the chamber apparatus A 1 (2, 3) and the plate body 22 which becomes a ceiling surface.

As shown in FIG. 1, the basic shape of the box 1 is a frame body in which the opening and bottom surface of the grid 21 are substantially the same shape and size, and the lower part is a square shape in plan view and has a certain length. 1a, and the frame 1a is provided with a trapezoidal roof 1b whose width becomes narrower as it goes upward, and the front and back surfaces of the upper roof 1b above the frame 1a are the opening surface 1c. It is a substantially cylindrical shape.

Further, as shown in FIG. 3, the lower portions of the outer end surfaces of the front and rear sides of the frame 1a of the box 1 are recessed from the one side to the other side by the height and width of the T bar 24 standing on the back of the system ceiling B. When two boxes 1 (2, 3), which will be described later, are connected, the recesses of these two boxes 1 (2, 3) become a tunnel shape, and the T-bar 24 passes through the tunnel-shaped portion. Therefore, even if the T-bar 24 is erected, it does not get in the way (see FIGS. 4 and 7).

Further, among the boxes, the one disposed at the tip (hereinafter referred to as “tip box 2”) has substantially the same structure as the box 1 as shown in FIGS. 1 and 4, but the frame 2a, the roof 2b and an opening surface 2c on the rear surface, and the front surface is closed. Further, as shown in FIG. 5, the one arranged at the rear end (hereinafter referred to as “rear end box 3”) has substantially the same structure as the box 1, but the frame 3a, the roof 3b, and the upper part of the front surface. Is the opening surface 3c, and the upper portion of the rear surface is closed, and as shown in FIGS. 6 and 7, an opening 3d for attaching the duct end is provided.

Further, as shown in FIG. 1, a steel plate 22 serving as a radiation plate for radiation air conditioning is provided on the ceiling surface of the system ceiling B, and a number of through holes 23 are provided in the plate 22. As shown in FIG. 8, step portions 22 a are formed at the four edges of the plate body 22.

Next, how the air conditioning chamber apparatus A is provided on the system ceiling B using the box 1, the front end box 2 and the rear end box 3 will be described. The system ceiling B used here is a conventional one that is 600 squares to 640 squares, and a plurality of grids 21 are formed by suspending a plurality of T bars 24 in an intersecting manner.

As shown in FIG. 3 and FIG. 8, the plate 22 is fitted in the openings of the many grids 21 by placing the step 22 a of the plate 22 on the step 24 a below the T-bar 24. It is crowded. Further, a packing 25 for preventing air leakage made of a square frame is provided inside the step 22a on the plate 22.

In the system ceiling B, as shown in FIG. 8, the lower surface of the frame 2 a of the tip box 2 is placed on the packing 25 inside the front and rear T bars 24 that form the grid 21.

Thereafter, the box 1 is placed on the grid 22 adjacent to the rear side of the tip box 2 on the plate 22 of the system ceiling B in the same manner as the tip box 2, and the rear face of the tip box 2 is placed. And the front surface of the box 1 are aligned and closely connected. Here, the front surface of another box 1 is closely connected to the rear surface of the box 1 (three boxes 1 are connected in FIG. 2). Then, the rear end box 3 is placed on the grid 21 adjacent to the rear side of the last box 1 among these boxes 1, and the plate 22 of the system ceiling B is covered like the front end box 2 and the box 1. The rear face of the box 1 and the front face of the rear end box 3 are aligned and closely connected. In this way, a plurality of boxes 2, 1, 3 are continuously installed.

Further, when connecting each surface of the front end box 2, the box 1 and the rear end box 3, a packing 4 is interposed in advance on the connection surface to seal the inside of the front end box 2, the box 1 and the rear end box 3. ing. As shown in FIGS. 4 and 7, the top box 2, the box 1, and the rear end box 3 are fixed to each other by fixing the roof top plates and the left and right side plates with a clasp 5. . As the clasp 5 used here, a commercially available one is used.

Further, as shown in FIG. 8, through holes 1d (shown as box 1 in FIG. 8) are provided in the frame bodies 2a, 1a, 3a located on both side surfaces of the front end box 2, the box 1 and the rear end box 3, respectively. The positions of these through holes 1d and the positions of the through holes provided in the piece 6a of the substantially crank-type overturn prevention device 6 are matched, and the nut of the bolt 7 is passed through the leg of the bolt 7 from the outside. The fall prevention tool 6 is attached by screwing, and the other piece 6b having a key-shaped portion is suspended from the lower end of the fall prevention tool 6.

The key part of the other piece 6b of the fall prevention tool 6 is hooked and fixed on the head of the T bar 24 standing on the system ceiling B from below. And this fall prevention tool 6 is provided in the right-and-left side of the front end box 2, the box 1, and the rear end box 3, respectively. As a result, the front end box 2, the box 1 and the rear end box 3 are firmly pressed from both sides to the plate constituting the ceiling and are not fixed. Adhesiveness between 1, 2, 3 and each plate 22 is also increased, which contributes to improvement in maintaining airtightness in the box. Furthermore, even if a slight impact is applied, the front end box 2, the box 1 and the rear end box 3 will not fall out of the system ceiling B and fall. Further, in this way, a supply route to the grids 21 of the conditioned air transferred from the air conditioner C is formed.

Thereafter, as shown in FIG. 2, the supply port of the duct 25 extended from the air conditioner C installed in the machine room is connected to the opening 3d on the rear surface of the rear end box 3. Thereby, the conditioned air is transferred from the air conditioner C.

When air-conditioned air is flowed from the air conditioner C to the chamber apparatus A in this way, as shown in FIG. 9, the air-conditioned air flows through the upper layers in the front end box 2, the box 1 and the rear end box 3 ( 9 is transferred to the adjacent box through the opening surfaces 3c, 1c and 2c of the front end box 2, the box 1 and the rear end box 3 (in FIG. 9, the opening surfaces 1c and 3c). Only those that flow in the lower layer (shown by arrows in FIG. 9) collide with the frame bodies 2a, 1a, 3a, bounce down, come into contact with the plate body 22 and bring the plate body 22 into contact. The plate body 22 can be further cooled or heated by cooling or heating and passing a part of the air through the through hole 23 of the plate body 22.

In the case of connecting ordinary chambers, the conditioned air is simply transferred to the adjacent chamber and cannot effectively contact the plate 22 and the grid plate is uniformly cooled or heated to the target temperature. However, according to this embodiment, the frames 2a, 1a, and 3a are respectively attached to the front end box 2, the box 1 and the rear end box 3 which are supply routes of the conditioned air integrated with the system ceiling B. Since the partition wall is provided, a part of the conditioned air to be transported collides with the frame bodies 2a, 1a, 3a to be bounced and lowered, and the conditioned air is surely brought into contact with each plate body 22, It is possible to reliably cool or heat the plate body 22 close to the duct to the plate body 22 far from the duct. As a result, the installation of radiant cooling and radiant heating on the system ceiling was made easy and speedy.

Moreover, in this air-conditioning chamber apparatus A, if a problem occurs in a part of the boxes after the construction, if the connection with the boxes before and after this box is released, the plate 22 of the ceiling is removed from under the ceiling. It is possible to replace only the box in which the problem has occurred, for example, by lifting the whole box, so that the workability is good and the cost can be reduced. Moreover, the grid which does not install the said chamber apparatus covers the plate body provided with the plate body used as a ceiling surface, a lighting fixture, etc.

In the first embodiment, the system ceiling B is 600 square to 640 square. However, the system ceiling B is not limited to these sizes as long as the air conditioning chamber apparatus A can be used. Further, the box 1, the front end box 2 and the rear end box 3 are made of glass wool board, but the material is not limited to this.

Moreover, although it was set as the trapezoid shape which becomes narrow as the cross-sectional shape of the upper part of the box 1, the front end box 2, and the rear end box 3 goes up, it does not restrict to this, and each box is a commercially available fixture. Although the fastener 5 is used, anything may be used as long as it can securely fix the boxes. Furthermore, although the thing which latches and fixes to the head of T-bar 24 was used as the fall prevention tool 6 of each box, as the fall prevention tool 6, not only this but another thing may be used.

A air conditioning chamber device B system ceiling C air conditioner 1 box 1a frame 1b roof 1c opening surface 1d through hole 2 tip box 2a frame 2b roof 2c opening surface 3 rear end box 3a frame 3b roof 3c opening surface 3d opening 4 Packing 5 Clasp 6 Fall prevention tool 6a One piece 6b Other piece 7 Bolt 21 Grid 22 Plate body 22a Step portion 23 Through hole 24 T-bar 24a Step portion 25 Duct

Claims (4)

In the air conditioning chamber device used in the grid system ceiling,
A substantially cylindrical box provided with a roof with front and rear openings on a frame body having a square shape in plan view and a lower portion at the bottom of the grid opening and bottom surface having substantially the same shape and size. Forming,
A concave portion is provided from one side to the other side of the lower end of the outer end surface of both ends of the frame of the box located below the opening of the roof,
A plate body forming a ceiling surface having a large number of through holes is fitted into each of a plurality of continuous grids, and a plurality of the boxes are continuously installed by covering the boxes from above, and each of these adjacent boxes is a pair of frames. Arranged so that the recesses at the lower ends of the outer end faces of both ends face each other, and the T bars forming one side of the grid are accommodated in the facing recesses, and the outer end face of the frame body of each adjacent box and the end of the roof the thrust together in close contact connection,
Close the front end surface of the box installed at the front end of the box, connect the supply port of the duct connected to the air conditioner to the opening surface of the rear surface of the box installed at the rear end, and connect each duct through each box. The conditioned air is fed to the lower layer of the conditioned air, which collides with the frame of the box and descends, comes into contact with the plate, and a part of the air passes through the plate. A grid-type system ceiling air-conditioning chamber device, characterized in that the plate body is cooled or heated by passing through the plate. The system ceiling air-conditioning chamber apparatus according to claim 1, wherein the roof shape of each box is a trapezoid whose width becomes narrower as the cross section of the upper portion goes upward. Either of the above-mentioned Claims 1 or 2, wherein packing is provided on the connection surface of the boxes and the contact surface of each plate body and the frame body of each box, and each box is fixed with a fixture. The system ceiling air-conditioning chamber device described in 1. A head of a T-bar in which a piece of a substantially crank-type anti-tip device is attached to and suspended from the frame on both sides of the box and the other key piece of the anti-tip device is erected from the system ceiling characterized in that the mounting hook from below, the system ceiling air-conditioning chamber device according to any of the claims 1, 2 or 3.

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