JPH0942753A - Chamber box for air conditioning equipment and manufacture thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To attain high heat insulation and resistance to burning and to facilitate connection of a duct by forming an easily cuttable wall part for connection of the duct in which a duct connecting port is formed by cutting in correspondence to the connecting duct and the position of piping thereof at the time of connection of the duct. SOLUTION: Under a high pressure applied by a high pressure pump, a liquid A 11 and a liquid B 12 are agitated, injected through an injection pipe 10 and filled in a molding space 90 from an injection port 5. On the occasion, air in the molding space 90 goes out from an air vent hole 13 and polyurethane gets in around pawl parts 7 of damper mounting metal fittings 6. The state of filling can be checked easily by that the filled polyurethane is exposed from the air vent hole 13 located on the side opposite to the injection port 5. After completion of the filling, heat is applied from outside a mold and thereby an outer wall of a chamber box is formed. In this chamber box, the damper mounting metal fittings serve as a frame of a lower opening part and lateral and ceiling walls thereof can be made of resin entirely, while the adjustment thereof in a height direction is enabled since the material thereof is easy to cut.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a chamber box for air conditioning equipment, and in particular, a so-called VAV (Valu) equipped with an electric damper arranged in a pipeline of an air conditioning duct.
The present invention relates to a structure, a material, and a manufacturing method that are suitable for an apparatus for “Able Air Volume”.

[0002]

2. Description of the Related Art FIG. 20 is a sectional view showing a conventional air outlet structure disclosed in, for example, Japanese Utility Model Laid-Open No. 4-90841.
In the figure, 114 is a skin made of a steel plate or the like, 121 is a soft foamed resin layer that is in close contact with the outer surface of the skin 114, 11
8 is a hard base material formed on the outer surface of the soft foamed resin layer 114, and 112 is a grill portion formed on the inner surface of the skin 114 with resin. By integrally molding these, a component-integrated foam molded article A is constructed. To do. B is a foam molded product with integrated parts A
It is a duct joined to.

Although such an outlet structure does not have an electric damper or the like inside, the outlet structure is
As shown in FIG. 21, using a mold that can be divided into two, an upper mold C and a lower mold D, and a structure having a resin grill part 112 molded and attached to the inner surface of the skin 114 is mounted on the lower mold D. After placing
The upper mold C on which the hard base material 118 is fitted and temporarily attached is covered. At that time, there is a gap between the upper mold C and the lower mold D, which is the thickness of the soft foam resin layer, and the soft foam material is injected into the gap from the outside of the mold to be filled and heat-molded. An integral foam molded product A is manufactured.

Further, FIG. 22 shows, for example, actual climb 3003144.
FIG. 4 is a cross-sectional view showing a conventional air outlet box shown in Japanese Patent Laid-Open Publication No. JP-A-2004-320, in which 204 is a box body composed of a glass board 203, 205 is an air outlet opened at the bottom of the box body 204, and 206 is an air outlet 205. A wind direction adjusting vane 207 provided in the vicinity is a short tube which is fitted into the box main body 204 and forms a fitting hole 208 to be fitted into the duct B. FIG. 23 is a sectional view showing the glass board of FIG. 22 in detail. In the figure, 201 is glass wool, 2
Reference numeral 02 is an aluminum foil simultaneously press molded on both sides of glass wool.

Although this air outlet box is also equipped with a lightweight wind direction adjusting vane inside, it does not have a heavy weight such as an electric damper, so that even if the whole box body is made of resin such as glass wool, it is strong. The problem in terms of is small. The glass board 203 forming the box body 204 with such a structure prevents the glass wool from scattering during air blowing by the aluminum foil 202, and prevents dew condensation due to the heat insulating effect of the glass wool. is there. In addition, the overall weight of the box has been reduced, facilitating processing.

[0006] As described above, as the structure of the air outlet, there can be seen one in which a foamed resin is integrally formed on a metal skin, and one in which a wall surface is formed only by a foamed resin material. However, a VAV device having a built-in electric damper or the like is used. Since a chamber box for use is required to have nonflammability, sound absorption, heat insulation, and strength, for example, as shown in Japanese Utility Model Publication No. 5-5385, the main body is made of a metal plate, and external , Insulating material is attached to the inside to fix dampers and motors to the main body with screws, or mounting brackets are attached to the main body so that they project outside the insulating material and are attached by hanging bolts, etc. Was common.

FIG. 24 is a cross-sectional view showing a VAV device installed in the ceiling of a house or the like. In the figure, the conditioned air is blown from the ceiling 36 via the main duct 35 by an indoor unit such as an air han 34. Blow to 37. At this time, a branch duct 38 that connects the main duct 35 and the room 37 is provided. The VAV device 39 is attached at a position where it comes into contact with the ceiling board 40 at the end of the branch duct, operates the damper 42 in response to an instruction from the room controller 41 provided in each room, and gives a performance instruction to an indoor unit such as an air han. .

Air-conditioned air is blown from the grill 43 into the room through the VAV 39 device. 44 and 45 represent transmission lines, and 46 represents the flow of conditioned air. In such a residential VAV system, in the case of a 2 × 4 construction house in which the ceiling size 36 is extremely small, the structure in which the air outlet and the VAV are integrated has a large VAV device and its chamber box. Could not be installed.

[0009]

Since the conventional structure of the air outlet and the chamber box for the VAV device are configured as described above, the duct connection port of the chamber box is formed in advance and the duct connection position is limited. However, it was not possible to flexibly respond to the difference in duct piping condition and type. That is, when it is installed in a narrow space such as the ceiling, the duct direction is limited by the pillars and beams of the building reinforcing member, and it cannot be installed, or in the case of a rectangular grill, the position and direction of the grill that goes out to the indoor side. However, there were problems such as the limited interior space and the bad interior interior.

When installed in the ceiling or the like, the structure of the building such as a prefabricated method with a low ceiling height or a wooden conventional method with large beams or columns Since the space and the strength of the fixed portion are different depending on the structure, it is necessary to prepare a suitable one for each structure, which makes it difficult to share the structure and increases the manufacturing cost.

Further, the one disclosed in Japanese Utility Model Laid-Open No. 4-90841 has a high manufacturing cost due to its complicated structure, and it is difficult to form a non-combustible material from the conventional material because it is a resin grill.
Further, there is a problem that the sound absorbing property is low. Also, the box body of the chamber box is made of metal, the grill is made of resin,
Some boxes are equipped with an electric damper, etc. in the duct connection port, but in this case, the duct connection port must be decided in advance, so as described above, the type of product depends on the piping structure and the structure of the building. There was a problem that it had to be increased.

Further, in the one disclosed in Japanese Utility Model No. 30014344, when it is used for a blowout grill for air conditioning, if it is sufficiently satisfactory to prevent external dew condensation, the wall thickness needs to be 25 mm or more. Since the outer shape is larger than the proportion of the air passage area, it is impossible to secure a sufficient air passage area in a narrow space such as the ceiling and there is a problem that the pressure loss increases.

Further, in the conventional electric damper device, since the box body is made of metal for the purpose of making it non-combustible, the metal portion may be exposed depending on the attachment state where the heat insulating material is attached to the outer wall of the box body, resulting in dew condensation. I was afraid to do it. In addition, since the mounting bracket was attached to the box, it was necessary to attach a heat insulating material against dew condensation to the hanging bolts due to electric heat, and it took a lot of time and effort to prevent dew condensation, and construction took time and cost increased. There was a point.

The present invention has been made in order to solve the above-mentioned problems, and it is a chamber box for air-conditioning equipment, which has high heat insulation, is hard to burn, has easy duct connection, and has no air leakage to the outside. Aim to get.

It is another object of the present invention to provide a chamber box for air conditioning equipment, which has less directional restrictions, can be installed in a space-saving manner, and does not spoil the appearance as an interior. Another object of the present invention is to obtain a chamber box for air conditioning equipment, which is lightweight, easy to construct, and easy and sure against dew condensation.

It is another object of the present invention to obtain a chamber box for air conditioning equipment whose position adjustment with a duct is easy at the time of construction. Moreover, it aims at obtaining the chamber box for air-conditioning equipment which can be attached with various ducts.

[0017]

A chamber box for air conditioner equipment according to the present invention is provided with a duct connecting wall portion for cutting and forming a duct connecting port in accordance with a connecting duct and a pipe position thereof when the duct is connected. It is a thing.

The duct connecting wall is provided with a mark for connecting the duct.

Further, the present invention is provided with a box body composed of an easily cut adjustment wall portion which can be cut into an appropriate size according to the installation space.

Further, a kerf for cutting is formed in the adjusting wall portion.

The kerfs are formed in parallel at different intervals.

Further, the duct connecting wall portion or the adjusting wall portion is formed by polymerizing glass wool and polyurethane.

Further, the glass wool is made to have a density of 100 kg / m 3 or more, and the polyurethane is molded from rigid foamed polyurethane having a density of 60 kg / m 3 or more.

The inner wall is made of glass wool and the outer wall is made of polyurethane.

Further, a metal mounting frame fixed to the installation location and provided with a retaining member, and a resin duct connecting wall portion or adjusting wall portion held by the retaining member by simultaneous molding with the mounting frame. It is composed of

An auxiliary tool attached to the fitting of the connection duct and fixing the fitting frame to the fitting is provided on the fitting frame.

Further, the auxiliary tool is provided with an adjusting mechanism for adjusting the positions of the mounting tool and the mounting frame according to the size and the mounting position of the duct.

Further, in the method for manufacturing a chamber box for an air conditioning equipment according to the present invention, a metal mounting frame having a stopper is arranged in a mold having a void, and a foamed resin material is injected into the void to foam. In this state, the wall portion integrated with the mounting frame is formed in the engagement preventing and retaining state.

Further, a metal mounting frame having a stopper and an inner wall member forming an inner wall are arranged in a mold having a gap,
The inner wall and the outer wall are polymerized by injecting a foamed resin material into the voids to foam the resin so that the retaining wall is engaged with the retaining frame and is integrated with the mounting frame, and the inner wall member is covered to form the outer wall. The wall portion is formed.

The inner wall is made of glass wool having a density of 100 kg / 〓 or more, and the outer wall is made of hard polyurethane foam having a density of 60.
It is a foamed product with a density higher than Kg / 〓.

[0031]

BEST MODE FOR CARRYING OUT THE INVENTION

Embodiment 1. Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a cross-sectional view of a mold structure showing a process of manufacturing a chamber box for air conditioning equipment according to the present invention. In the figure, 1 is a lower mold of a mold, 2 is a peripheral mold,
Reference numeral 3 is the same middle piece, 4 is the same mold, and 5 is an injection port formed in the outer peripheral mold 2 for injecting a hard foam material. 6 is a damper mounting bracket made of a steel plate having a □ shape in which the lower end of the vertical wall is extended outward and the upper end is extended inward and the central portion is opened. In the middle of the vertical wall, there is formed an outwardly protruding retaining claw portion 7.

Reference numeral 8 denotes a glass-board box forming the inner wall of the chamber box, which is preformed by the method described later and is placed on the damper mounting bracket 6 so as to cover the lower mold 1 and the middle piece 3. ing. 90 is a molding space of hard foamed polyurethane surrounded by the lower mold 1, the damper mounting bracket 6, the box body 8, the outer peripheral mold 2 and the upper mold 4, 10 is an injection pipe connected to the injection port 5, 11 is this injection Liquid A mixed with polyols and others supplied to pipe 10, 12 is injection pipe 1
Liquid B mixed with polyisocyanate and the like to be supplied to 0, liquid A 11 and liquid B 12 are injected with high pressure stirring by a high pressure pump (not shown). Reference numeral 13 is an air vent hole formed on the opposite side of the outer mold 2 from the inlet 5.

In the method of manufacturing the chamber having the above-described structure, the liquid A 11 and the liquid B 12 are injected into the molding space 90 from the injection port 5 through the injection pipe 10 under high pressure by a high pressure pump to fill the space. At that time, the air in the molding space 90 escapes from the air vent hole 13, and the polyurethane also flows around the claw portion 7 of the damper mounting member 6. Then, the filled hard polyurethane is exposed from the air vent hole 13 on the opposite side of the injection port 5, so that the filling state can be easily confirmed. After completion of filling, the outer wall of the chamber box is molded by heating from outside the mold.

Since the outer wall covers the box body 8 forming the inner wall, leaving the lower opening, no adhesive or the like for special polymerization is required, and the hard polyurethane gets into the eyes of the glass wool at the time of molding. Since the air-tightness of the polymerized part is high and the surface is adhered, it does not peel after molding. Also,
The damper mounting bracket 6 is covered with hard polyurethane from four sides, and the claw portion 7 prevents the claw portion 7 from falling out. Therefore, the chamber box is integrally formed by only foaming the hard polyurethane by the above-mentioned manufacturing method.

Next, a method of manufacturing the box body 8 constituting the inner wall of the chamber box molded by the above manufacturing method will be described with reference to FIG.
Will be described. FIG. 2 is a cross-sectional view of the mold structure showing a process of manufacturing the box body 8. In the figure, reference numeral 15 is a lower mold of a concave mold, and 16 is a convex mold of the same mold, each having a built-in heater 17. 18 is thickness L = 15
It is a plate-like glass wool having a size of mm and a density of about 34 kg / m3.

In the method of manufacturing the box body 8 having the above-mentioned structure, glass wool is placed on the lower mold 15 heated to a high temperature by the heater 17, and the upper mold 16 is pressed to heat and press-mold, and l = A glassboard box 8 having a size of 5 mm and a density of about 100 kg / m3 is formed. FIG. 3 is a perspective view showing a molded state of the box body 8, and the box body shape is manufactured by trimming in accordance with the outer shell 19. After molding, an acetic acid-based anti-scattering material similar to the inner wall of the duct is applied to the inner wall of the box 8.

In the above-mentioned manufacturing method, if the density of the rigid polyurethane is pressure-molded to about 60 kg / m3 and the density of the glass board is set to about 100 kg / m3, the chamber box has a conventional metal thickness. It is possible to obtain sufficient nonflammability, sound absorption, heat insulation, and strength for air conditioning equipment without making it thicker, and in particular, nonflammability and heat insulation are required like VAV devices equipped with electric dampers. It is effective in what is done. In addition, since the wall thickness does not become thick, it is possible to secure an air flow rate commensurate with the size of the chamber box.

In the chamber box molded as described above, since the damper mounting metal member functions as a frame of the lower opening portion and has sufficient strength and rigidity, the side wall and the ceiling wall may be made of resin. Also, because the material is easy to cut, the side wall of the chamber box is cut horizontally, part of it is removed in the height direction, and the upper and lower parts are joined together, so that the height direction can be adjusted. Therefore, regardless of the type of building, it is possible to adjust the height direction according to the installation space, and it is possible to standardize the products.

Further, since the wall of the chamber box is easily cut, even if the duct connection port is not formed in advance, the chamber box is appropriately installed according to the duct structure of the duct at the time of building piping. At this time, the duct connection port may be formed by cutting the side wall or the ceiling wall in accordance with the position of the duct, the formation process of the duct connection port at the time of manufacturing can be omitted, and the chamber box can be used regardless of various duct piping. Can be shared.

Moreover, when connecting the ducts, it is not necessary to position the connecting ducts and the duct connecting ports with high precision, and the duct connecting ports can be formed in accordance with the positions of the connecting ducts, so that the workability is greatly improved. Also, the cutting area of the chamber box should be determined according to the diameter of the connecting duct,
The chamber box can be shared regardless of the duct type.
In addition, when constructing a wall part that can be easily cut for duct connection, it is not usual to connect the duct to the corner of the chamber box, so there is no problem even if a metal frame is inserted along the corner. In this case, the rigidity of the chamber box is improved.

Embodiment 2 FIG. 4 and FIG. 5 are a perspective view and a sectional view of a chamber box for air conditioning equipment, showing another embodiment. In the figure, 9 is an outer wall of a box body made of hard foamed polyurethane, 47 is a mark for engraving on the top surface, the length surface and the width surface of the outer wall 9, respectively, and other portions are the examples. This is the same as No. 1, and the same reference numerals are given and the description thereof is omitted.

The chamber box configured as described above is manufactured by a method similar to that of the first embodiment, and no holes for duct connection are provided on the surface of the chamber box during molding. Then, during molding of the chamber box, a mark 47 for instructing processing is engraved on the outer surface of the hard foamed polyurethane of the outer wall 9. Since the chamber box can be installed in the ceiling of a house by the 2x4 method, where the space behind the ceiling is relatively small, height H = 235 mm or less, width W
= 200 mm or less, diameter of branch duct in residential air conditioning φ
= 150mm or less ducts can be attached on any surface.

FIG. 6 is a view showing a state in which the branch duct 38 is attached by making a hole at the position of the mark 47 with a cutter or the like. As for the duct connection port, a duct is appropriately piped in the ceiling and the like, and the chamber box of the air conditioning equipment according to the present invention is attached at a desired position, and the diameter of the branch duct 38 to be connected and the relative relation between the branch duct 38 and the chamber box. The position and size are determined by the position. The branch duct 38 and the chamber box are connected to each other with an adhesive and an Al tape 48 in a sealed manner. The dashed-dotted line duct shows the state of being attached to the width surface, and the top surface can be attached in the same manner.

As described above, since the mark for teaching the processing is preliminarily attached, a guideline for an ideal relative position with the duct is provided,
The positioning is easy, and the work is easy if the cutting process of the duct connection port is performed according to the mark. Also, since the chamber box does not have a connection port formed in the wall until the duct is actually connected, a common chamber box can be used for any duct piping layout and the duct diameter can be changed. It is also possible to deal with the difference. Even if the diameter of the duct is different from the diameter of the mark, the workability is improved because the connection port can be cut using the mark as a guide.

Embodiment 3 FIG. 7 is a cross-sectional view showing a state in which a chamber box for air conditioning equipment according to another embodiment is attached to the back of the ceiling, in which 36 is the back of the ceiling,
38 is a branch duct arranged in the ceiling back 36, 56 is a joist installed as a reinforcing member in the ceiling back 36, and the lower surface is a ceiling board attachment surface 59. 57 is the upper surface above the ceiling 5
8 is a packing that is attached to the entire circumference of the opening surface of the chamber box, 54 is a metal damper mounting bracket 6 described later attached to the joist 56 with the side wall of the chamber box sandwiched between them.
Screws that fix the chamber box (wood screws here)
It is.

FIG. 8 is a perspective view showing the damper mounting member 6 described above, in which 49 is a tightening hole into which the screw 54 of FIG. 7 is inserted, and 50 is a bent portion 51 bent toward the opening side. A screw hole for mounting an electric shutter (not shown) and parts related thereto, 52 is a damper mounting bracket 6
1 is a retaining claw portion which is formed by cutting and raising the side surface of the side wall and is engaged and integrated at the time of foam molding of the side wall of the chamber box and corresponds to the claw portion 7 in FIG. Reference numeral 53 is an edge portion which is an edge of the lower surface opening portion of the chamber box. The damper mounting member 6 is composed of two parts having the same shape and having separate side walls facing each other.

Next, the operation will be described. The damper mounting bracket 6 is integrated with the side wall by the manufacturing method of the first embodiment,
The chamber box is positioned in accordance with the joists 56 installed as a reinforcing material on the ceiling back 36, the chamber box opening surface and the ceiling plate attachment surface 59 are aligned, and the metal frame 6 molded and attached to the inner surface of the chamber box is used. The chamber box is fixed to the joist 56 so that the side wall of the chamber box is sandwiched by the screw 54 from the inside.

As a result, alignment with the ceiling can be facilitated, and since the packing material 58 is attached to the entire circumference of the opening surface of the chamber box, there is no gap with the ceiling surface (not shown), and it is easy. By doing so, there is no need for parts that condense from the inside of the chamber box, such as metal parts, when heat is transferred to the air behind the ceiling, and condensation measures are not required. In addition, the duct 38
Since it is possible to connect after fixing the chamber box in the same manner as in the second embodiment, even if there is some error in the fixing position, the mounting accuracy is not affected.

If the upper surface of the ceiling is low and there is no room in the height direction, the height of the chamber box can be adjusted by cutting the side wall of the chamber box in a circular slice. Other configurations are similar to those of the first and second embodiments.

As described above, when the chamber box of this embodiment is fixed to the ceiling, even if the relative position to the duct is slightly displaced, it does not affect the mounting. Therefore, the construction is easy and the height direction is high. If there is a restriction, it is possible to cut the resin chamber box that is easy to cut in the planar direction and cut out the middle of the side wall leaving only the required height, so it can be installed even if the ceiling is low. Is possible, and 2
A common chamber box can be used regardless of the type of building, such as the × 4 construction method and the conventional wooden construction method, and cost can be reduced by mass production.

Embodiment 4 FIG. FIG. 10 is a perspective view (a) and a sectional view (b) showing a duct connection state of a chamber box for an air conditioning equipment according to another embodiment. In FIG. A hanging bolt for hanging, 61 is a round duct hanging metal fitting attached to the lower end of the hanging bolt 60 to hold the duct 38, 7
3a is a screw for tightening the round duct hanging metal fitting, and 74 is a nut attached to the screw 73a and the hanging bolt 60, respectively.
It is possible to arbitrarily adjust the degree of tightening and the hanging position of the hanging bolt 60.

Reference numeral 63 designates a U-shaped auxiliary plate fixed to the outer surface of the side wall of the chamber box by the screw 54 of the third embodiment. In the fixed state, the wall portion of the chamber box is sandwiched between the damper mounting bracket 6. Becomes Reference numeral 64 denotes an L-shaped auxiliary metal fitting that is attached to the auxiliary plate 63 together with the holding plate 65 and is also attached to the round duct hanging metal fitting 61. The auxiliary plate 63, the L-shaped auxiliary metal fitting 64, and the holding plate 65. The auxiliary tool is constructed by the
To fix it integrally with the duct. These configurations are shown in FIG.

9A and 9B are (a) an exploded perspective view and (b) an assembled perspective view showing the auxiliary plate 63, the L-shaped auxiliary metal fitting 64 and the holding plate 65 in FIG. 10, and 66 in the drawing shows the holding plate 65. The lower end is bent to form a claw portion, 67 is an elongated hole formed in one bent piece of the L-shaped auxiliary metal fitting 64, and 68 is bent from the tip end of the other bent piece in the same direction as one bent piece. A bent locking portion, 69 is a long hole formed in a portion of the chamber box which is in contact with the duct connecting surface, 70 is a lower cutout portion, 71
Is a notch in the upper part, and 73b is a tightening screw inserted into the screw insertion part 72 formed in the L-shaped auxiliary metal fitting 64.

Next, as shown in FIG. 16, the operation in the case of using the hanging bolt 60 and the round duct hanging metal fitting 61 without using the joist or the like of the reinforcing member will be described. As shown in FIG. 15, the portion to be attached in contact with the outer peripheral surface of the chamber box is a mounting frame formed by attaching a plurality of screw holes to both sides of the U-shaped auxiliary plate 63 in contact with the width surface of the chamber box at the opening of the chamber box. It is provided to match the hole for the tightening screw.

Further, an elongated hole 69 and a lower cutout portion 70 are provided at a lower position of the duct in a portion of the chamber box which is in contact with the duct connecting surface. The holding plate 65 has a claw portion 66 for preventing it from coming off.
When the claw portion 66 comes into contact with the cutout portion 70, the screw portion is located in the long hole portion 69, and when the claw portion 66 is inserted into the long hole 69, it becomes the upper cutout portion 71. Is provided. U-shaped auxiliary plate 63 using this screw part
The L-shaped auxiliary metal fitting 64, which is clamped by the clamping screw 73b, has a long hole 67 as the screw insertion portion and a bent portion 69 on the duct contact surface.

Between the U-shaped auxiliary plate 63 and the chamber box, align the claw portion 66 of the pressing plate 65 with the position of the elongated hole 69 or the notch 70, and tighten the tightening screw 5 from the inside of the chamber box.
Fix at 4. At this time, if the shape of the duct connected to the chamber box is round, the cutout 70 is used, and if it is a square duct, the elongated hole 69 is used. After that, L-shaped auxiliary metal fittings 6
4 is temporarily fixed to the pressing plate through the long hole 67, the duct 38 is connected, and the duct hanging metal fitting 61 is provided between the duct 38 and the duct 38.
The character-shaped auxiliary metal fitting 64 is sandwiched and tightened with the screw 73b.

At this time, even if the position of the duct 38 shifts to the left and right, the L-shaped auxiliary metal fitting 64 and the auxiliary plate 65 move in the lateral direction by the elongated hole 69 and the notch 70 to correspond to each other. Further, even if the duct 38 shifts up and down, it can be accommodated within the range of the long hole 67, and the bent portion 64 provided at the tip of the L-shaped auxiliary metal fitting 64 prevents the duct 38 and the chamber box from coming off. . By tightening the screw 73b in this state, it is securely fixed.

According to the configuration of the above-described embodiment, it is not necessary to construct a suspension bolt dedicated to the chamber box or the like, and it is not affected by the difference in duct form, and it is possible to cope with the displacement of the duct mounting. The position of the chamber box can be adjusted by 60 and the nut 74, and the chamber box can be surely brought into close contact with the ceiling surface 40, which facilitates reliable construction without air leakage.

Embodiment 5. 11A and 11B are a front sectional view and a side sectional view, respectively, showing the structure of a circular duct, in which 108 is an inner wall portion made of high-density glass wool, and 1
Reference numeral 13 denotes an outer wall portion made of hard polyurethane foam, which is formed by applying the same pressure with the same material as that of the box body 8 and the outer wall 9 of the first embodiment. FIG. 12 is a front cross-sectional view showing a divided state when a round duct as shown in FIG. 11 is constructed from a member having a semi-circular cross section that can be divided into two parts, and 120 is an aluminum tape for sealing and adhering the joint portion. .

13 (a) is a front sectional view showing the structure of a square duct, FIG. 13 (b) is a side sectional view, and FIG. 14 is a sectional view of a square duct as shown in FIG. FIG. 13 is a front cross-sectional view showing a divided state in the case, which is the same as FIG. 11 and FIG. 12 except that the shape is different, and corresponding parts will be denoted by the same reference numerals and description thereof will be omitted. Also,
FIG. 15 is a modified example of FIG. 14 and has a configuration in which the corner portions at diagonal positions are joined.

The duct constructed as described above is manufactured by molding similarly to the chamber box of the first embodiment and the like, and when the dew condensation prevention effect is made equal, the duct area is equal to that of the conventional duct. A space-saving duct with a small outer diameter. Further, if the divided structure as shown in FIGS. 12, 14 and 15 is adopted, it is possible to manufacture a structure in which the space for transportation is reduced. Then, the assembly of the duct is performed on-site, and the aluminum tape 20 is adhered to seal the gap.

Embodiment 6 FIG. Embodiments 1 to 4 shown in FIG.
An example of a continuous manufacturing method of the wall material of the chamber box and the flat plate material used for the duct of the fifth embodiment will be described. The molding die 21 is provided with a heater 27 for thermoforming rigid polyurethane foam. The material charging port has a glass board charging port 24 and a foamed polyethylene mixed liquid charging port 23, and glass wool 18 having a low density and L thickness is compressed into the glass board charging port 24 by a pressure roller 25 having a heating structure. The glass board 8 having a high density of 100 kg / m @ 3 and a thickness of 1 is molded and fed by the conveying roller 26.

On the other hand, the foamed polyethylene mixed liquid inlet 23
The mixed liquid A11 and the mixed liquid B12 are stirred under high pressure by a high-pressure pump (not shown) and fed through the injection pipe 10. Then, the two materials come into close contact with each other inside the molding die 21 and are heated and molded by the heater 27 for heating. And then comes out to the material discharge port of the mold. At this time, a mold release material 28 is applied near the die discharge port to facilitate extrusion. The discharged synthetic plate is continuously drawn out by the pull-out roller 29, and a continuous molded product of the synthetic plate made of one sheet of high-density glass wool and rigid polyurethane foam is manufactured.

FIG. 17 shows the high-density glass board box body 8 forming the inner wall surface of the chamber box, which is manufactured not from a molded product but from a single plate material. Remove the four corners 31 of
As shown in (b), it is bent in the same direction on each surface along the bending line 33 to form a box, which can be handled in the same manner as the box 8 molded product of the first embodiment.

As described above, according to the present invention, VAV
The material of the chamber box into which the device is inserted is glassboard with a density of 100 kg / m3 or more on the inner surface and 64 kg on the outside.
Since it is made of hard foamed polyurethane of / m3, it has a high heat insulation effect, allows the use of thin materials, enables the production of small and lightweight boxes, and saves space. In addition, the outer polyurethane outer wall is formed with a mark for clarifying the position of the duct connecting hole, so that the duct connecting portion can be easily drilled.

Since the mounting metal frame is attached to the opening of the chamber box by molding, VAV is attached to the mounting metal frame.
It can be attached, the screw can be passed from the inner surface to the outer side, and it can be easily tightened to the external material. Since the mounting metal frame is only the opening portion, the chamber box is lightweight. Furthermore, by using the auxiliary metal fittings, it is possible to easily perform the hanging construction using the duct hanging metal fittings. Further, since the size is reduced as described above, the space can be saved, and the interior design can be improved without affecting the directionality of the rectangular grill.
In addition, the lightweight and non-combustible structure against internal fire improves safety and facilitates construction.

Embodiment 7 FIG. 18 is a perspective view showing a chamber box according to another embodiment, and FIG. 19 is a sectional view thereof, in which the basic structure is the same as that of the first embodiment, and the same reference numerals are given to corresponding portions. Is attached and its description is omitted. A plurality of grooves 9a are formed in the horizontal direction on the outer surface of the outer wall 9 so as to circulate the side wall, and the intervals between the grooves are different. Other configurations are similar to those of the first embodiment.

As is clear from the sectional view of FIG. 19, the chamber box has a side wall made of a cuttable resin. Therefore, the chamber box is cut along the groove 9a with a cutter or the like, and a part of the side wall is cut. Can be easily removed. Therefore, when it is installed in a space such as a space above the ceiling where the height direction is limited, a part of the chamber box can be cut off according to the space and the size itself of the chamber box can be adjusted in the height direction.

At this time, since the intervals of the grooves 9a are different from each other, the height of the chamber box can be easily adjusted by cutting the side wall between the grooves having the intervals matching the height dimension to be cut. The chamber box after cutting may be joined by aluminum tape and sealed, as in the case of the fifth embodiment. As a result, the chamber box can be standardized, and the manufacturing cost can be reduced by mass production.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a manufacturing process of a chamber box for air-conditioning equipment according to Embodiment 1 of the present invention.

FIG. 2 is a conceptual diagram showing a manufacturing process of an inner wall of a chamber box for air conditioning equipment according to Embodiment 1 of the present invention.

FIG. 3 is a perspective view showing an inner wall of a chamber box for air conditioning equipment manufactured through the process of FIG.

FIG. 4 is a perspective view showing a chamber box for air conditioning equipment according to Embodiment 2 of the present invention.

5 is a cross-sectional view of the chamber box of FIG.

FIG. 6 is a state perspective view showing a duct mounting state of the chamber box according to the second embodiment of the present invention.

FIG. 7 is a state diagram showing a state where the chamber box for air conditioning equipment according to Embodiment 3 of the present invention is attached to the back of the ceiling.

FIG. 8 is a perspective view showing an attachment frame of a chamber box for air conditioning equipment according to Embodiment 3 of the present invention.

FIG. 9 is an exploded perspective view showing an auxiliary plate and the like attached to a chamber box for air conditioning equipment according to Embodiment 4 of the present invention.

10 is a perspective view showing a state where the auxiliary plate of FIG. 9 is attached to a chamber box and a duct.

FIG. 11 is a front sectional view (a) and a side sectional view (b) showing a round duct according to a fifth embodiment of the present invention.

FIG. 12 is an exploded view of a round duct according to a fifth embodiment of the present invention.

13 (a) is a front sectional view and FIG. 13 (b) is a side sectional view showing a rectangular duct according to a fifth embodiment of the present invention.

FIG. 14 is an exploded view of a square duct according to a fifth embodiment of the present invention.

FIG. 15 is an exploded view showing another embodiment of the square duct according to the fifth embodiment of the present invention.

FIG. 16 is a conceptual diagram showing a continuous manufacturing method of flat plate materials in the sixth embodiment of the present invention.

FIG. 17 (a) is a development view showing an inner wall of a chamber box for air conditioning equipment according to Embodiment 6 of the present invention;
(B) It is an assembly perspective view.

FIG. 18 is a perspective view showing a chamber box for air-conditioning equipment according to Embodiment 7 of the present invention.

19 is a cross-sectional view of the chamber box of FIG.

FIG. 20 is a cross-sectional view showing a conventional chamber box.

FIG. 21 is a conceptual diagram showing a manufacturing method of the chamber box of FIG. 20.

FIG. 22 is a cross-sectional view showing a conventional outlet box.

23 is a cross-sectional view of the wall surface of the outlet box of FIG.

FIG. 24 is a conceptual diagram showing a piping structure in a building such as a conventional VAV device.

[Explanation of symbols]

1 lower mold, 2 outer peripheral mold, 3 middle piece, 4 upper mold,
5 inlets, 6 damper mounting brackets, 7 claws,
8 box body, 9 outer wall, 10 injection pipe, 13 air vent hole, 38 branch duct, 47 mark for processing instruction,
54 screws, 56 joists, 63 auxiliary plates, 64
L-shaped auxiliary metal fittings, 65 holding plate, 108 inner wall portion,
113 outer wall, 120 aluminum tape,

Claims (14)

[Claims] 1. A chamber box for air-conditioning equipment, comprising a duct connecting wall portion that cuts and forms a duct connecting port in accordance with the position of the connecting duct and its piping when the duct is connected. 2. The chamber box for air conditioning equipment according to claim 1, wherein a mark for duct connection is provided on the duct connection wall portion. 3. A chamber box for an air conditioner equipment, comprising a box body made of an easy-to-cut control wall portion that can be cut into an appropriate size according to an installation space. 4. The chamber box for air conditioning equipment according to claim 3, wherein a cut groove is formed in the adjustment wall portion. 5. The chamber box for air conditioning equipment according to claim 4, wherein a plurality of the cut grooves are formed in parallel at different intervals. 6. The chamber box for air conditioning equipment according to claim 1, wherein the duct connection wall portion or the adjustment wall portion is formed by polymerizing glass wool and polyurethane. 7. The chamber box for air conditioning equipment according to claim 6, wherein the glass wool has a density of 100 kg / m 3 or more and the polyurethane is molded from a rigid foamed polyurethane having a density of 60 kg / m 3 or more. 8. The chamber box for air conditioning equipment according to claim 6, wherein the inner wall is made of glass wool and the outer wall is made of polyurethane. 9. A metal mounting frame fixed to an installation place and provided with a retaining member, and a resin duct connecting wall portion or an adjusting wall portion held by the retaining member by simultaneous molding with the mounting frame. The chamber box for air conditioning equipment according to claim 1 or 3, characterized in that 10. The chamber box for an air conditioning equipment according to claim 9, wherein an auxiliary tool attached to the fitting of the connection duct and fixing the fitting frame to the fitting is provided in the fitting frame. 11. The chamber for air conditioning equipment according to claim 10, wherein the auxiliary tool is provided with an adjusting mechanism for adjusting the positions of the fitting and the mounting frame according to the size and the mounting position of the duct. box. 12. A metal mounting frame having a retaining structure is disposed in a mold having a void, and a foaming resin material is injected into the void and foamed to bring the retaining frame into an engagement holding state and the mounting frame. A method for manufacturing a chamber box for an air conditioning equipment, comprising forming an integrated wall portion. 13. A metal mounting frame having a stopper and an inner wall member forming an inner wall are arranged in a mold having a gap, and a foamed resin material is injected into this gap to foam and engage with the stopper. A chamber box for an air conditioning equipment, characterized in that a wall portion is formed which is integrated with the mounting frame in a holding state and covers the inner wall member to form an outer wall so that the inner wall and the outer wall overlap with each other. Production method. 14. The inner wall is made of glass wool having a density of 100 kg / 〓 or more, and the outer wall is made of rigid polyurethane foam having a density of 60 kg.
13. The method for manufacturing a chamber box for an air conditioning equipment according to claim 12, wherein the density of the chamber box is increased to or more and foam molding is performed.