JPH0868558A - Air channel structure of connection of duct to diffuser or the like - Google Patents

Abstract

PURPOSE: To provide an air channel structure of a connection of an air duct to a diffuser, etc., which can efficiently connect the duct to the diffuser in a narrow garret space without the drift of the air flow, pressure loss, noise, etc., by so connecting the duct as to form an air channel of a down gradient into the interior of the diffuser, etc., and uniformly diffusing the air conditioned air sprayed from the duct. CONSTITUTION: An air duct 16 is connected from the lateral direction to a case body 14 such as a diffuser 12, etc. An air channel 20 of the duct is communicated with the diffuser, etc., of this connector 18, and the channel is formed in a down gradient from the duct to the case body such as the diffuser, etc. The air conditioned air is smoothly fed from the duct to the body to eliminate pressure loss, noise, etc., due to vortex flow, etc., but can be uniformly diffused into a room.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air flow path structure in a connecting portion between a blowout port and a duct.

[0002]

2. Description of the Related Art Conventionally, in a linear air outlet or the like which is placed in a space above a ceiling and which conditioned air is blown out while air is conditioned, a lower surface is opposed to an opening provided in a ceiling plate as shown in FIG. The linear outlet is installed on the C-shaped channel with a T-bar. Then, a duct connection port is provided on the side wall surface of the case body such as a linear outlet, and an air duct branched from the air conditioner or the main duct is connected to this connection port to blow the conditioned air into the linear outlet. On the other hand, air is conditioned in the room while blowing out from the lower surface of the linear air outlet into the room.

[0003]

However, in the linear outlet, the air duct is blown by connecting the air duct perpendicularly from the lateral direction to the connection port on the wall surface of the case body, so that the case body is blown. Air collides with the inner wall surfaces facing each other inside and is dispersed as a vortex, and as shown in FIG. 9, the airflow dispersed on the upper surface side gathers while splitting in the left and right directions on the inner surface of the upper side and on both end sides of the air outlet. It is not possible to evenly blow the air because it becomes a biased flow that is biased toward the side, and pressure loss of the air flow and noise are likely to occur. Further, in the narrow ceiling space between the ceiling board and the ceiling slab, the air duct must be connected to the air outlet at a position close to the C-shaped channel arranged on the back side of the ceiling board, which requires time and effort for construction. There was a problem such as.

The present invention has been made in view of the above-mentioned conventional problems, and an object thereof is to connect an air duct to the inside of an air outlet or the like so as to form a downwardly sloping air flow path. Air flow at the connection between the air outlet and the duct, which eliminates the occurrence of uneven flow of air flow, air pressure loss, noise, etc., and allows efficient air duct connection work even in a narrow space above the ceiling. To provide the structure.

[0005]

In order to achieve the above object, the present invention is directed to a case main body 14 such as a blower outlet 12 having a flow downstream side arranged on the lower surface side in a lateral direction.
And the air outlet 20 or the like and the air passage 20 of the air duct 16 are communicated with each other at the connecting portion 18. The air passage 20 descends from the air duct 16 to the case body 14 such as the outlet 12. It is composed of an air flow path structure 10 at a connecting portion between a duct and an outlet formed in a gradient.

Further, the air duct 16 itself may be connected to the case body 14 in a downward slope.

Further, the air duct 16 may be attached to the case body 14 so as to be attachable / detachable only by pushing and pulling operations.

[0008]

The air flow path structure at the connecting portion between the air outlet and the like of the present invention is located at a predetermined position in the ceiling space, with the air outlet on the lower surface of the case body of the air outlet facing the opening of the ceiling plate. Install an outlet. Therefore, an air duct branched from the air conditioner or the main duct is piped along the ceiling slab 48 to the position of the air outlet, and the end portion of the air duct is lowered to the connection opening of the connection tube protruding from the case body. It fits on the slope and keeps the end of the air duct airtight.

As a result, an air flow path is formed in a downward slope from the air flow path in the air duct into the case main body, and the conditioned air smoothly flows down in the air flow path of the downward slope and blows out on the lower surface of the case main body. The air is blown from the holes into the room on average. Therefore, no eddy current or noise is generated in the case body,
Air-conditioning air can be uniformly blown out from the blowout holes without uneven flow. Further, in the connection hole provided on the side wall surface of the case body,
The end of the air duct itself may be directly connected to a downward slope. At this time, the outer surface of the case body is smooth and has no protrusions, does not become bulky when transported to the site, and has excellent workability in a narrow ceiling space. , The air duct can be connected to the case body of the air outlet very easily.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described below with reference to the accompanying drawings. FIG. 1 shows an air flow path structure (hereinafter abbreviated as air flow path structure) 10 at a connecting portion between a blowout port and the like and a duct according to a first embodiment of the present invention. As is clear from the figure, the air flow path structure 10 includes the air outlet 12
The air duct 16 is laterally connected to the case body 14 such as the above, and the air outlet 20 and the air flow path 20 of the air duct 16 are communicated with each other at the connecting portion 18.

In the embodiment, the air outlet 12 is a linear air outlet having a narrow and elongated case body 14. As shown in FIGS. 2 and 3, the case body 14
Is made of a metal plate, and has substantially trapezoidal side wall plates 22 and 22 facing each other, and a closing plate 24 closed from both ends of the gap between the side wall plates 22 and 22 to the upper surface. An elongated blowout hole 26 is provided on the lower surface of the case body 14.

Further, a hole is opened at a substantially central position of one side wall plate 22 of the case main body 14, and a connecting cylinder 28 for attaching / detaching the air duct 16 at a downward slope is attached to the periphery of the hole. It is projected. That is, one characteristic of the present invention is that the air flow path that connects the air outlet and the air duct is formed in a downward slope from the air duct to the main body case of the air outlet. FIG.
As shown in. An elastic packing 32 such as silicone rubber is fixed to the inner surface of the connection opening 30 on the end surface side of the connection tube 28. As a result, the air duct 16 can be connected to the connecting cylinder 28 protruding from the case body 14 in a descending slope very easily. Although an example of a linear outlet is illustrated as the outlet 12, the air flow channel structure 10 of the present invention is not necessarily limited to the linear outlet, and may be, for example, a multilayer cone type diffuser box, an air conditioner, or the like. You may implement it for connection of a chamber etc. and an air duct. Also,
As in the embodiment, not only the flexible air duct is connected to the connection opening provided with the elastic packing with a one-touch downward slope, but also an ordinary metal duct may be directly connected with a downward slope. In short, as described above, the air duct may be connected so as to form an air passage having a downward slope.

As shown in FIG. 1, the air duct 16 is
For example, a flexible tubular body 34 having the air flow path 20 therein, and a flexible tubular body 34, which is connected and fixed to one end of the flexible tubular body 34, is approximately similar to the inner diameter of the connection opening 30 of the connection tubular 28,
A solid cylinder 36 having an outer diameter slightly larger than the outer diameter of the flexible cylinder 34, and an insertion width of the solid cylinder 36 in the depth direction on the outer peripheral surface of the solid cylinder 36. A stopper 38 for restricting the above is provided in a protruding manner.

As described above, in the embodiment, the air duct 16
Since itself is connected to the side wall plate of the outlet 12 in a downward slope, the air flow path 20 can be formed in a downward slope from the air duct side to the outlet side at the same time, and the workability can be improved. Further, the connecting portion 18 is provided at the end portion of the air duct 16 and the connecting tube 28 that is provided so as to communicate with the case body 14 so as to connect the air duct 16 to the case body 14 in a downward slope. The solid tubular body 36 of the air duct 16 is formed by inserting the solid tubular body 36 of the air duct 16 into the connection opening 30 of the connecting tube 28 projecting from the case body 14 of the air outlet 12, and airtightly by the elastic packing 32 inside. Retained. The air duct is attached to the case body so that it can be attached / detached to / from the case body only by pushing and pulling operations, and a connection core for attaching the air duct to the side wall of the air outlet, the air conditioning chamber, etc. The mounting and positioning steps can be performed quickly, and the connection and fixing work such as bolt mounting and closing can be omitted.

Next, the operation of the air channel structure 10 according to the first embodiment of the present invention will be described. As shown in FIG. 1, in the space D above the ceiling, the T-bar which is locked to the C-shaped channel 44 by making the outlet hole 26 on the lower surface of the case body 14 of the outlet 12 face the elongated opening 42 provided in the ceiling plate 40. The case main body 14 is suspended and supported by 46 and 46, and the air outlet 12 is installed at a predetermined position in the space D above the ceiling. Therefore, the air duct 16 branched from the air conditioner or the main duct is piped along the ceiling slab 48 to the position of the air outlet 12, and the solid cylindrical body 36 at the end of the air duct 16 is attached to the case body 1
4 is fitted into the connection opening 30 of the connection cylinder 28, and the solid cylinder body 36 is airtightly held by the elastic packing 32 in the connection opening 30.

As a result, the air flow path 2 of the air duct 16
From 0 to the inside of the case body 14, a downwardly sloping air flow path F is formed, and the conditioned air smoothly flows down in the downwardly sloping air flow path F without pressure loss or vortex flow, and is blown out on the lower surface of the case body 14. It is blown from 26 into the room. Therefore, no vortex or noise is generated in the case body 14, and the blowout hole 26
Therefore, the conditioned air can be blown out uniformly as shown in FIG.

Further, since the air duct 16 can be connected to the connecting cylinder 28 of the case main body 14 in a downward slope, the air duct 16 can be arranged at a sufficient interval with respect to the C-shaped channel 44, and a narrow ceiling space can be provided. In the space D, the air duct can be efficiently connected and constructed. In addition, the connection tube 2
8, connection opening 30, solid cylinder 36 of air duct 16
Although the above is implemented as a cylindrical body, the shape is not limited to this, and any shape such as a quadrangle or a polygon may be adopted according to the shape of the solid cylinder 36 at the end of the air conditioning duct to be connected. .

Next, FIG. 5 shows an air flow path structure 10 according to a second embodiment of the present invention. In the figure, in the air flow path structure 10, an air duct 16 is laterally connected to an air conditioning chamber 50 connected to an upper end of an anemo-shaped air outlet 12a installed on a ceiling plate 40, and this connecting portion 18 is provided.
At, the anemo-shaped air outlet 12a and the air flow path 20 of the air duct 16 are communicated with each other.

In this embodiment, the air conditioning chamber 5
No. 0 is formed in a hollow box, and a connecting portion 52 for connecting the anemo-shaped outlet 12a is hung on the lower surface of the hollow box, and the air duct 1 is provided on the side wall of the hollow box as in the first embodiment.
A connection port 28 for connecting 6 to the downhill is projected. An elastic packing is provided in a connection opening (not shown) at the end of the connection tube 28. A solid cylinder 36 is connected to the end of the air duct 16, and a stopper 38 is fixed to the outer peripheral surface of the solid cylinder 36.

Thus, when the solid cylinder body 36 of the air duct 16 is fitted into the connecting cylinder 28 protruding from the hollow box body of the air conditioning chamber 50, the air flow path 20 in the air duct 16 causes the inside of the air conditioning chamber 50. Since the air flow path F having a downward slope is formed, the conditioned air flowing through the inside of the air conditioning chamber 50 does not generate a swirl or noise, and the conditioned air is uniformly blown into the room through the anemo-shaped outlet 12a on the lower surface. It will be possible. Further, since the air duct 16 can be connected to the connecting cylinder 28 on the side surface of the air conditioning chamber 50 in a downward slope, the air duct 16 can be arranged at a sufficient interval with respect to the C-shaped channel, and in a narrow space above the ceiling. It will be possible to efficiently connect the air ducts.

FIGS. 6 and 7 show an air flow channel structure 10 according to the third embodiment of the present invention. As is clear from the figure, in this embodiment, the air duct 16 itself is directly connected to the case body 14 of the outlet 12 in a downward slope. For this purpose, the case body 1
The connecting portion 18 of No. 4 is opened in the side wall plate 22 of the case body 14, and has an oval-shaped connecting hole 54 into which the solid cylindrical body 36 of the air duct 16 can be inserted with a downward slope, and an inner edge of the connecting hole 54. The receiving edge 56 protruding downward into the case body 14
A donut-shaped elastic packing 32 fixed to the outer surface side of the connection hole 54 and having a hole smaller in diameter than the connection hole 54 formed therein, and a holding ring 58 locking the elastic packing 32 from the outer surface, Is equipped with.

As a result, the solid cylindrical body 36 of the air duct 16 is connected to the connection hole 5 of the side wall plate 22 of the case body 14.
The solid cylindrical body 36 is easily airtightly held by the receiving edge 56 on the inner surface side of the connection hole 54 and the elastic packing 32 by thrusting downward in the direction of 4. And the air duct 1
6, an air flow path F having a downward slope is formed from the air flow path 20 to the case main body 14, and the air duct 16 extends from the case main body 1
No vortex or noise is generated in the conditioned air flowing through the inside of the air conditioning unit 4, and the conditioned air can be uniformly blown out from the blowout holes on the lower surface.

The air duct 16 includes the solid cylinder 36 and the receiving edge 56 of the connection hole 54 of the case body 14,
With the elastic packing 32 kept airtight, the solid cylindrical body 36 can be easily pulled out while being pulled to the outside. Therefore, since the air duct 16 can be attached to and detached from the connection hole 54, the operability during construction is excellent, and the case body 1
The maintenance and inspection of 4 can be easily performed.

Further, the case body 14 does not have the connecting cylinder 28 protruding from the outer surface as compared with the previous embodiment, so that it is not bulky when being transported to the site and is excellent in workability in a narrow space above the ceiling. . In addition, although the present embodiment describes the case main body of the air outlet, the present invention is not limited to this, and the case main body of the air conditioning chamber or the ceiling diffuser may be connected to the air duct.

In each of the above-described embodiments, the air flow path in the air duct 16 is connected to the case body 14 by the connecting portion 18.
Thus, the air duct 16 is connected so as to form a downwardly sloping air flow path toward the case body 14, but not limited to this, for example, the air duct 16 may be connected to the case body 1.
4 is connected vertically from the lateral direction to the air duct 1
A deflecting plate may be provided in the case body 14 from the end side in 6 so that the air flow path has a downward slope, thereby forming a downward slope air flow path from the air duct into the case main body. .

[0026]

As described above, according to the air flow path structure at the connecting portion between the air outlet and the duct according to the first aspect of the present invention, the case body of the air outlet and the like having the flow downstream side disposed on the lower surface side. An air duct is laterally connected to the air duct, and the air outlet and the like are connected to the air duct of the air duct at this connection portion, and the air duct has a downward slope from the air duct to the case body such as the air outlet. By forming it, it is possible to form a downwardly sloping air flow path from the air duct into the case body such as the air outlet, and the conditioned air is blown out evenly from the lower surface of the air outlet and the pressure inside the air outlet is increased. It is possible to prevent loss and noise. Further, since the air duct is connected to the air outlet and the like at a downward slope, the air duct can be efficiently connected without the C-shaped channel or the like interfering in a narrow ceiling space.

Further, according to claim 2, since the air duct itself is connected to the case body in a downward slope, the outer surface of the case body is smooth and has no protrusions, and is bulky when transported to the site. Therefore, the workability is excellent in a narrow space above the ceiling.

According to a third aspect of the present invention, the air duct is attached to the case body so that the air duct can be attached / detached only by pushing / pulling out. Excellent, the air duct can be connected to the case body of the air outlet very easily.

[Brief description of drawings]

FIG. 1 is a front view in which an air outlet having an air flow path structure in a connecting portion between an air outlet and the like according to an embodiment of the present invention is installed in a space above a ceiling.

FIG. 2 is a front view of an outlet.

FIG. 3 is a partial side view of the air outlet shown in FIG.

FIG. 4 is an explanatory diagram of a state of an airflow blown out from an outlet.

FIG. 5 is a front view of an air conditioning chamber equipped with an air flow path structure according to another embodiment of the present invention.

FIG. 6 is a partial cross-sectional view of a connecting portion between an air duct having an air flow path structure according to another embodiment of the present invention and a case body.

7 is a front view showing a connecting portion provided on the case body of FIG.

FIG. 8 is an explanatory diagram of a conventional air flow path structure in which an air duct is connected to the air outlet in the space above the ceiling.

9 is an explanatory diagram of a state of an air flow blown out from the conventional air outlet of FIG.

[Explanation of symbols]

10 Air flow path structure at the connection between the air outlet and the duct 12 Air outlet 14 Case body 16 Air duct 18 Connection 20 Air flow path D Ceiling space F Air flow path

Claims (3)

[Claims] 1. An air duct is laterally connected to a case main body such as an air outlet having a downstream side disposed on the lower surface side, and the air outlet and the air flow path of the air duct are communicated with each other at the connecting portion, The air flow path is an air flow path structure in a connecting portion between the air duct and the duct formed by forming a downward slope from the air duct with respect to the case body such as the air outlet. 2. The air flow path structure in the connecting portion between the air outlet and the duct and the duct according to claim 1, wherein the air duct itself is connected to the case body in a downward slope. 3. The air duct with respect to the case body,
The air flow path structure in the connecting portion between the air outlet and the duct and the duct according to claim 1 or 2, wherein the air passage structure is attached so as to be detachable and connectable only by pushing and pulling operations.