JP4663163B2 - Blowing chamber and air conditioning system using the same - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to, for example, a blowout chamber for blowing conditioned air from an indoor unit to a conditioned room and an air conditioning system using the same.
[0002]
[Prior art]
Generally, in a whole building air conditioning system, etc., an indoor unit is installed under the stairs of a building, etc., and a method of supplying conditioned air from the indoor unit through a duct to a plurality of blowout chambers formed in each room is adopted. Yes.
[0003]
[Problems to be solved by the invention]
For example, when the blowout chamber is installed under the floor and the blowout opening of the chamber body opens on the floor surface toward the conditioned room, duct connection work between the blowout chamber and the indoor unit is performed under the floor. Therefore, there is a problem that the connecting operation becomes extremely difficult. A typical example of conventional connection work will be described. First, an operator dives under the floor to connect the blowout chamber and the indoor unit with a duct, and then returns to the floor and hands from the opening formed in the floor plate. Then, the blowout chamber just below the opening is pulled up, the upper part of the blown-up blowout chamber is fixed to the opening of the floor plate, and the blowout grill is mounted thereon.
[0004]
However, such connection work is difficult, and there is a problem that future maintenance is also difficult.
[0005]
Accordingly, an object of the present invention is to provide a blow-out chamber and an air-conditioning system using the blow-out chamber that can solve the problems of the conventional techniques described above and simplify duct connection work.
[0006]
[Means for Solving the Problems]
According to the first aspect of the present invention, the connection side end of the connection duct is inserted into the duct connection hole formed in the chamber main body , and a fixing band is formed on the outer peripheral portion of the connection side end projecting into the chamber main body . Insert the cylinder part of the flange part into the inner peripheral part of the connection side end part, and tighten the fixing band in the chamber body to connect the connection side end part and the flange part. The connection side end is pushed out of the chamber main body until it is pushed by and is brought into contact with the inner wall portion of the chamber main body, and the flange portion is fixed to the inner wall portion of the chamber main body with a screw .
[0007]
According to a second aspect of the present invention, in the first aspect of the present invention, the blowout opening of the chamber main body is opened on the floor surface, and the blowout grill is provided in the opening.
[0008]
A third aspect of the present invention is the air conditioning system in which the other end of the duct, one end of which is connected to the outlet of the indoor unit, is connected to the outlet chamber, and the outlet chamber has a duct connection hole formed in the chamber body. Insert the connection side end of the connection duct into the outer periphery of the connection side end projecting into the chamber body , and pass the fixing band and packing in this order. Insert into the inner periphery, tighten the fixing band in the chamber body to connect the connection side end and the flange part, and until the packing is pushed by the flange part and abuts against the inner wall part of the chamber body, And the flange portion is fixed to the inner wall portion of the chamber body using screws .
[0009]
According to a fourth aspect of the present invention, in the third aspect of the present invention, the blowout opening of the chamber main body is opened on the floor surface, and the blowout grill is provided in the opening.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
[0011]
FIG. 1 shows the entire building air conditioning system. In this air conditioning system, two outdoor units 2 and 3 are installed outside the building 1, one outdoor unit 2 is connected to the indoor unit 5 in the attic room via the refrigerant pipe 4, and the other outdoor unit 3 is A refrigerant pipe 6 is connected to the indoor unit 7 in the lower stairs room.
[0012]
A suction chamber 9 is connected to the indoor unit 5 in the attic room via a duct 8, and a branch chamber 11 is connected to the branch chamber 11 via a duct 10. , 15 are connected to each other. On the other hand, outside air is taken into the room under the stairs through the air supply duct 16. A branch chamber 17 is connected to the indoor unit 7 under the stairs under the floor, and blowout chambers 20 and 21 are connected to the branch chamber 17 via ducts 18 and 19, respectively.
[0013]
Next, the structure of the blowout chamber 20 (or 21) according to the present embodiment will be described with reference to FIG.
[0014]
The blowout chamber 20 includes a wooden box-type chamber main body 31, and the blowout opening 31A of the chamber main body 31 is opened on the floor (FIG. 1). A circular duct connection hole 31B and a notch 31C are integrally formed on the side surface of the chamber body 31, and the connection side end 18A of the connection duct 18 is inserted into the duct connection hole 31B. The connection-side end portion 18A and the flange main body 33 are coupled, and the flange portion 33A of the flange main body 33 is fixed to the inner wall portion of the chamber main body 31 via a screw 35.
[0015]
Next, the connection procedure of the duct 18 will be described with reference to FIG.
[0016]
3A, first, an opening 41 for attaching the blowout chamber 20 is formed on the floor board of the building 1, and the connection side end 18A of the connection duct 18 is positioned under the floor near the opening.
[0017]
Next, as shown in FIG. 3B, the chamber main body 31 is inserted into the opening 41 of the floor board from above, and the chamber main body 31 is fixed to the floor portion with the wood screw 42. Next, a hand is passed from the floor to the opening 41, the blowout opening 31A, and the duct connection hole 31B, and the connection side end 18A of the connection duct 18 located outside the duct connection hole 31B is grasped, and this is connected to the chamber body 31. Pull in.
[0018]
Then, as shown in FIG. 3C, the connection side end 18 </ b> A and the flange main body 33 are coupled within the chamber main body 31.
[0019]
When this is connected, referring to FIG. 2, the fixing band 33B and packing 33C are passed through the outer peripheral portion of the connection side end portion 18A protruding into the chamber body 31, and the flange is connected to the inner peripheral portion of the connection side end portion 18A. The cylindrical portion of the portion 33A is inserted, the fixing band 33B is tightened, and the connection side end portion 18A and the flange portion 33A are coupled.
[0020]
Next, after the projection of the fixing band 33B is aligned with the notch 31C, the connection side end 18A is moved until the flange portion 33A and the packing 33C of the flange main body 33 abut against the inner wall portion of the chamber main body 31. Push away. In this state, the flange portion 33 </ b> A of the flange body 33 is fixed to the inner wall portion of the chamber body 31 using screws 35.
[0021]
Finally, as shown in FIG. 3D, a metal frame 45 is fixed to the upper end of the chamber body 31 with screws, and as shown in FIG. 3E, the metal mesh 46 and the blowout grill 47 are stacked in this order and fixed with screws 48.
[0022]
In the present embodiment, the connection side end 18A and the flange main body 33 are coupled in the chamber main body 31 and the flange main body 33 is fixed to the inner wall of the chamber main body 31. It is not necessary to dive under the floor, and duct connection workability can be improved.
[0023]
The chamber body 31 can be attached to any position within the reach of the duct 18.
[0024]
4 and 5 show another embodiment.
[0025]
In this embodiment, a guide member 51 having an L-shaped cross section for guiding the lower end portions of the flange portion 33 </ b> A of the flange main body 33 and the packing 33 </ b> C is fixed to the inner wall portion of the chamber main body 31. According to this, as shown in FIG. 5, the lower end portions of the flange portion 33 </ b> A and the packing 33 </ b> C are guided and positioned by the guide member 51, so that in the chamber main body 31, in a so-called groping state. The screw 35 can be easily fixed.
[0026]
As mentioned above, although this invention was demonstrated based on one Embodiment, it is clear that this invention is not limited to this.
[0027]
Although the said blowing chamber 20 demonstrated the thing of under floor installation, it is not limited to this, For example, it cannot be overemphasized that the present invention is applicable also to the blowing chamber installed in a top bag, a ground bag, a ceiling back, etc., for example. Nor.
[0028]
【The invention's effect】
In the present invention, the connection side end and the flange main body are coupled in the chamber main body, and the flange portion of the flange main body is fixed to the inner wall portion of the chamber main body, so that the duct connection workability can be significantly improved. .
[Brief description of the drawings]
FIG. 1 is a diagram showing an entire building air conditioning system.
FIG. 2 is an exploded perspective view showing an embodiment of a blowout chamber according to the present invention.
FIGS. 3A to 3E are diagrams for explaining a duct connection procedure; FIGS.
FIG. 4 is a perspective view showing another embodiment.
FIG. 5 is a cross-sectional view of FIG.
[Explanation of symbols]
7 Indoor Unit 18 Connection Duct 18A Connection Side Ends 20, 21 Blowing Chamber 31 Chamber Body 31A Blowing Opening 31B Duct Connection Hole 31C Notch 33 Flange Body 33A Flange 35 Screw

Claims (4)

Insert the connection side end of the connection duct into the duct connection hole formed in the chamber body, and pass the fixing band and packing through the outer periphery of the connection side end projecting into the chamber body , and the flange part Is inserted into the inner peripheral portion of the connection side end portion, the fixing band is tightened in the chamber body to connect the connection side end portion and the flange portion, and the packing is pushed by the flange portion so that the inner wall of the chamber body is The blowout chamber is characterized in that the connection side end is pushed out of the chamber body until it abuts against the portion, and the flange portion is fixed to the inner wall portion of the chamber body with a screw .   2. A blowout chamber according to claim 1, wherein a blowout opening of the chamber body opens on the floor surface, and a blowout grill is provided in the opening. In the air conditioning system in which the other end of the duct whose one end is connected to the outlet of the indoor unit is connected to the outlet chamber,
The blowout chamber inserts a connection side end of a connection duct into a duct connection hole formed in the chamber main body , and in the order of a fixing band and a packing in an outer peripheral portion of the connection side end projecting into the chamber main body . Insert the cylindrical part of the flange part into the inner peripheral part of the connection side end part, tighten the fixing band in the chamber body to connect the connection side end part and the flange part, and the packing is pushed by the flange part. The connection-side end is pushed out of the chamber main body until it abuts against the inner wall of the chamber main body, and the flange portion is fixed to the inner wall of the chamber main body using screws .   4. The air conditioning system according to claim 3, wherein the blowout opening of the chamber main body opens to the floor surface, and the blowout grill is provided in the opening.

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