JP2003004284A - Blowoff chamber and air-conditioning system using it - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a blowoff chamber enabling simplification of duct connection work and an air-conditioning system using the chamber. SOLUTION: A connecting end 18A of a connection duct 18 is inserted into a duct connection opening 31A formed on a chamber main body 31. The connecting end 18A and a flange main body 33 are connected inside the chamber main body 31. A flange part 33A of this flange main body 33 is fixed on the internal surface of the chamber main body 31.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a blowing chamber for blowing conditioned air from an indoor unit into a room to be conditioned and an air conditioning system using the same.

[0002]

2. Description of the Related Art Generally, in an air conditioning system for an entire building, an indoor unit is installed under a staircase of a building, and the plurality of blowout chambers formed in each room are supplied with conditioned air from the indoor unit through a duct. The method is adopted.

[0003]

When the blow-out chamber is installed, for example, under the floor, and the blow-out opening of the chamber body opens to the floor surface toward the controlled room,
Since the duct connecting work between the blowout chamber and the indoor unit is performed under the floor, there is a problem that the connecting work becomes extremely difficult. Explaining a typical conventional connection work example, 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 through an opening formed in the floorboard. Then, the blow-out chamber immediately below the opening is pulled up, the upper portion of the pulled-out blow-out chamber is fixed to the opening of the floor plate, and the blow-out grill is mounted on it.

However, such connection work is not only difficult, but there is also the problem that future maintenance will be difficult.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a blow-out chamber and an air-conditioning system using the blow-out chamber, which can solve the problems of the above-mentioned conventional techniques and simplify the work of connecting ducts.

[0006]

The invention according to claim 1 is
The connecting side end of the connecting duct is inserted into the duct connecting hole formed in the chamber main body, the connecting side end and the flange main body are connected in the chamber main body, and the flange portion of the flange main body is connected to the chamber main body. It is characterized by being fixed to the inner wall portion of the.

According to a second aspect of the present invention, in the first aspect of the present invention, the blowout opening of the chamber body is opened to the floor surface, and the blowout grill is provided in this opening. .

According to a third aspect of the present invention, in 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, the outlet chamber is formed in the chamber body. Insert the connection side end of the connection duct into the duct connection hole, connect the connection side end and the flange body in the chamber body, and fix the flange portion of the flange body to the inner wall portion of the chamber body. It is characterized by being configured as.

According to a fourth aspect of the present invention, in the third aspect, the blowout opening of the chamber body is opened to the floor surface, and the blowout grill is provided in this opening. .

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows an entire air conditioning system.
In this air conditioning system, two outdoor units 2,
3 is installed, one outdoor unit 2 is connected to the indoor unit 5 in the attic via the refrigerant pipe 4, and the other outdoor unit 3 is connected to the indoor unit 7 in the staircase below via the refrigerant pipe 6. There is.

A suction chamber 9 is connected to the indoor unit 5 of the attic via a duct 8 and a branch chamber 11 is connected to the branch chamber 11 via the ducts 12 and 13. Blowout chamber 1
4 and 15 are respectively connected. On the other hand, outside air is taken into the room under the stairs via the air supply duct 16. The indoor unit 7 under the stairs includes the branch chamber 1 under the floor.
7 is connected to the branch chamber 17, and ducts 18,
The blowing chambers 20 and 21 are connected via 19 respectively.

Next, the structure of the blowing chamber 20 (or 21) according to the present embodiment will be described with reference to FIG.

The blowing chamber 20 is provided with a wooden box-shaped chamber body 31, and the blowing opening 31A of the chamber body 31 is opened on the floor surface (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 portion 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 connected, and the flange main body 33
The flange portion 33A is fixed to the inner wall portion of the chamber body 31 with the screw 35.

Next, the procedure for connecting the duct 18 will be described with reference to FIG.

In FIG. 3A, first, an opening 41 for attaching the blowout chamber 20 is formed on the floor plate of the building 1, and the connecting side end portion 18A of the connecting duct 18 is positioned under the floor near this opening. deep.

Next, as shown in FIG. 3B, the chamber main body 31 is inserted into the opening 41 of the floor plate from above, and the chamber main body 31 is fixed to the floor portion with wood screws 42. Next, the hand is passed through the opening 41, the blowout opening 31A, and the duct connection hole 31B from the floor, and the connection side end portion 18A of the connection duct 18 located outside the duct connection hole 31B is grasped, and the chamber body 31 Pull in.

Then, as shown in FIG. 3C, in the chamber body 31, the connection side end portion 18A and the flange body 33 are formed.
And are connected.

When connecting these, referring to FIG. 2, the fixing band 33B and the packing 33C are passed through the outer peripheral portion of the connecting side end portion 18A protruding into the chamber body 31, and the inner periphery of the connecting side end portion 18A is inserted. The tubular portion of the flange portion 33A is inserted into the portion and the fixing band 33B is tightened to connect the connection side end portion 18A and the flange portion 33A.

Then, after aligning the protrusion of the fixing band 33B with the notch 31C, the flange portion 33A of the flange body 33 and the packing 33C are moved to the chamber body 31.
The connection side end 18A is pushed out of the chamber main body 31 until it abuts against the inner wall of the chamber. In this state, the flange body 3
The flange portion 33A of No. 3 is fixed to the inner wall portion of the chamber body 31 by using the screw 35.

Finally, as shown in FIG. 3D, a metal frame 45 is fixed to the upper end of the chamber body 31 with screws,
As shown in FIG. 3E, a wire net 46 and a blow-out grill 47 are stacked in this order and fixed with screws 48.

In this embodiment, in the chamber body 31,
Since the method of connecting the connection side end portion 18A and the flange main body 33 and fixing the flange main body 33 to the inner wall portion of the chamber main body 31 is adopted, it is not necessary to dive under the floor one by one during the work, and the duct connection Workability can be improved.

The chamber body 31 can be attached at any position within the reach of the duct 18.

4 and 5 show another embodiment.

In this embodiment, a guide member 51 having an L-shaped cross section for guiding the lower end portions of the flange portion 33A and the packing 33C of the flange body 33 is fixed to the inner wall portion of the chamber body 31. According to this
As shown in FIG. 5, the guide member 51 guides the lower end portions of the flange portion 33A and the packing 33C and positions them, so that the screw 35 fixing work in the chamber body 31 in a so-called groping state can be performed. It will be easier.

Although the present invention has been described based on the embodiment, it is obvious that the present invention is not limited to this.

Although the blowing chamber 20 has been described as being installed under the floor, the present invention is not limited to this, and the present invention can be applied to a blowing chamber installed in, for example, a top bag, a ground bag, or a ceiling ceiling. Needless to say.

[0028]

According to the present invention, since the connection side end portion and the flange main body are connected 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, the duct workability is markedly improved. Can be improved.

[Brief description of 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 blowing chamber according to the present invention.

3A to 3E are diagrams illustrating a procedure for connecting a duct.

FIG. 4 is a perspective view showing another embodiment.

5 is a cross-sectional view of FIG.

[Explanation of symbols]

7 Indoor unit 18 Connection duct 18A Connection side end 20, 21 blowout chamber 31 chamber body 31A blowout opening 31B duct connection hole 31C cutout 33 Flange body 33A Flange 35 screws

Claims (4)

[Claims] 1. A connection side end of a connection duct is inserted into a duct connection hole formed in a chamber body, and the connection side end and the flange body are connected in the chamber body, and the flange body A blowout chamber having a flange portion fixed to an inner wall portion of a chamber body. 2. The blowout chamber according to claim 1, wherein the blowout opening of the chamber main body is opened to the floor surface, and a blowout grill is provided in this opening. 3. An air conditioning system in which the other end of a duct, one end of which is connected to a blowout port of an indoor unit, is connected to a blowout chamber, wherein the blowout chamber is connected to a duct connection hole formed in the chamber body. Inserting the connecting side end of the duct, connecting the connecting side end and the flange body in the chamber body, and fixing the flange portion of the flange body to the inner wall portion of the chamber body. A characteristic air conditioning system. 4. The air conditioning system according to claim 3, wherein the blowout opening of the chamber body is opened to the floor surface, and the blowout grill is provided in the opening.