JPH05172392A - Duct for air conditioning - Google Patents

Abstract

PURPOSE:To reduce largely manhours on operation for installing a duct and a lighting fitting in the duct for air conditioning, in which the lighting fitting is fixed onto the underside of a duct body. CONSTITUTION:Both ends of each duct body 21 divided into branches are sealed by end plates 27, 29 while a connecting projecting section 31 is formed to one end plate 27, and an end connection 33 having a shape that the connecting projecting section 31 can be inserted, is formed to the other end plate 29. On the other hand, the suction and exhaust ports of air-conditioned air are formed to the underside of the duct body 21, and a lighting fitting is fixed onto the underside of the duct body 21, thus constituting ducts for air conditioning. An air-quantity adjusting mechanism 55 changing the opening areas of the suction and exhaust ports 53 is disposed, thus organizing the ducts.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioning duct, and more particularly to an air conditioning duct in which a lighting device is fixed to a lower surface of a duct body.

[0002]

2. Description of the Related Art FIG. 8 shows a ceiling of a conventional building. In this ceiling, a branch duct 13 is arranged so as to branch from a main duct 11, and supply / exhaust air is provided at an end of each branch duct 13. A mouth 15 is formed.

A lighting fixture 17 is arranged completely independently of the air supply / exhaust port 15. In such a conventional ceiling, since the air supply / exhaust port 15 and the lighting fixture 17 are independently arranged, the aesthetic appearance of the ceiling surface becomes troublesome, and the air supply / exhaust port 15 and the lighting fixture 17 are separately installed. Since it is necessary, there is a problem that the man-hours for work increase.

Therefore, conventionally, as shown in FIG. 9, the tip of the branch duct 13 is opened to a long chamber 19, and a supply / exhaust port for conditioned air is formed on the lower surface of the chamber 19. What has been developed is one in which a lighting fixture is fixed to the lower surface of the chamber 19. In this method, since the air supply / exhaust port and the lighting fixture are located at the same location, the appearance is relatively simple.

[0005]

However, in the method using such a chamber 19, each chamber 1
Since 9 are independent, the number of branch ducts 13 corresponding to the number of chambers 19 is required, and there is a problem that a large number of work steps are still required for installation.

The present invention solves the above problems, and an object of the present invention is to provide an air conditioning duct which can significantly reduce the number of man-hours required for installing the duct and the lighting equipment. ..

[0007]

According to a first aspect of the present invention, there is provided an air conditioning duct in which both ends of a plurality of divided duct main bodies are closed by end plates, and a connection convex portion is formed on the one end plate, and the other end is formed. A connection port having a shape into which the connection protrusion can be inserted is formed on the end plate of the air conditioner, while air supply / exhaust ports for conditioned air are formed on the lower surface of the duct body, and a lighting device is further installed on the lower surface of the duct body. It is fixed.

The air-conditioning duct according to a second aspect of the present invention is the air-conditioning duct according to the first aspect, which has an air volume adjusting mechanism for changing the opening area of the air supply / exhaust port.

[0009]

In the air conditioning duct according to the first aspect of the present invention, the connecting projection formed on one end plate of the duct body is inserted into the connection port formed on the other end plate of the adjacent duct body. The main bodies are sequentially connected to form a predetermined duct, and the connection also positions the lighting fixture at a predetermined position.

In the air conditioning duct according to the second aspect, the opening area of the air supply / exhaust port is changed and the air volume of the conditioned air is adjusted by operating the air volume adjusting mechanism.

[0011]

Embodiments of the present invention will be described below in detail with reference to the drawings. 1 to 4 show an embodiment of an air conditioning duct of the present invention, and reference numeral 2 in these drawings
Reference numeral 1 denotes a rectangular tubular duct body that forms the body of the air conditioning duct 23.

As shown in FIG. 4, a heat insulating material 25 is arranged on the inner peripheral surface of the duct body 21. Duct body 21
Both ends of are closed by end plates 27 and 29.

On one end plate 27, a cylindrical connecting projection 3 is formed.
One end of 1 is opened, and the connecting convex portion 31 projects outward from the end plate 27. On the other end plate 29,
One end of the cylindrical connection port 33 is opened, and the connection port 33
Are projected inward from the end plate 29.

The connection port 33 has a shape into which the connection projection 31 can be inserted. The duct body 21 has an upper surface 3
5, the side surface portion 37 and the lower surface portion 39, the lower surface portion 39 is located inside the side surface portion 37 by a predetermined distance, and a space 41 for the lighting fixture is formed.

A socket 43 is fixed to the lower surface 39 of the duct body 21 at a predetermined interval.
A fluorescent lamp 45 is arranged between the two. Also, the lower surface part 3
The lower surface of 9 is a reflecting plate, and the ballast 47 is fixed to the upper surface of the lower surface portion 39.

As shown in FIG. 4, a bent portion 51 protruding from an opening formed in the ceiling surface 49 is formed at the lower end of the side surface portion 37. As shown in FIG. 4, air supply / exhaust ports 53 for the conditioned air are formed on both sides of the lower surface 39, and an air volume adjusting mechanism 55 for changing the opening area of the air supply / exhaust ports 53 is arranged in the air supply / exhaust ports 53. Has been done.

In this embodiment, the air flow rate adjusting mechanism 55 is formed by a damper plate 57 whose one side surface is openably and closably fixed to the lower surface 39 via a hinge or the like. FIG. 5 shows an example of laying the duct on the ceiling of the building using the above-mentioned air conditioning duct 23, and the reference numeral 59 indicates the main duct.

One end of a branch duct 61 is connected to the main duct 59, and the other end of the branch duct 61 is connected to a cylindrical upper surface connecting convex portion 65 projecting upward from the upper surface of the air conditioning duct 63. Has been done.

The air-conditioning duct 63 has the same structure as the above-described air-conditioning duct 23 except that the upper surface connecting convex portion 65 is formed, and therefore detailed description thereof will be omitted.

A connection port 33 is formed in the other end plate 29 of the air conditioning duct 63, and one end of a communication duct 67 is fitted in the connection port 33. The other end of the communication duct 67 is fitted into the connection port 33 formed in the other end plate 29 of the air conditioning duct 23 described above.

Adjacent to the air-conditioning duct 23, an air-conditioning duct 23 having the same structure as that of the air-conditioning duct 23 is arranged. These air-conditioning ducts 23 are connected to one of the air-conditioning ducts 23 at a connecting convex portion. 31 is connected by being inserted in the connection port 33 of the other air conditioning duct 23.

The air-conditioning duct 23 constructed as described above
Then, the connecting convex portion 31 formed on one end plate 27 of the duct body 21 is replaced by the other end plate 2 of the adjacent duct body 21.
By inserting into the connection port 33 formed in 9, the duct main body 21 is sequentially connected and a predetermined duct is formed, so that it is possible to significantly reduce the number of work steps for installing the duct as compared with the related art. Become.

Further, since the lighting fixture is also arranged at a predetermined position by this connection, the number of work steps for installing the lighting fixture can be significantly reduced as compared with the conventional case. Since the duct body 21 and the lighting fixture can be transported at the same time, the transportation can be rationalized.

Conventionally, ducts are generally made to order, but the same air conditioning duct 23 can be industrially mass-produced and stocked. Further, in the above-described air conditioning duct, the opening area of the air supply / exhaust port 53 is changed by the operation of the air volume adjusting mechanism 55, so that the air volume of the conditioned air can be easily adjusted, and the air conditioning environment is improved. You can

FIG. 6 shows another example of the air flow rate adjusting mechanism. In the air flow rate adjusting mechanism 69, a pair of damper plates 71 are provided.
Are connected by a hinge 73 at the center, and the opening area of the air supply / exhaust port 53 can be changed by moving the hinge 73 up and down.

FIG. 7 shows still another example of the air flow rate adjusting mechanism. In the air flow rate adjusting mechanism 75, an air supply / exhaust port 79 is formed in the center of the lower surface portion 77, and is arranged above the air supply / exhaust port 79. The opening area of the air supply / exhaust port 79 can be changed by moving the valve plate 81 up and down.

In the above-described embodiment, an example in which the heat insulating material 25 is arranged on the inner peripheral surface of the duct main body 21 has been described, but the present invention is not limited to such an embodiment. Needless to say, a heat insulating material may be arranged on the outer peripheral surface of the.

[0028]

As described above, in the air-conditioning duct according to the first aspect, the connecting convex portion formed on one end plate of the duct body is connected to the other end plate of the adjacent duct body. By inserting into the mouth, the duct bodies are sequentially connected to each other to form a predetermined duct, and the lighting fixture is also placed at a predetermined position by this connection.Therefore, the work man-hours for installing the duct and the lighting fixture are reduced. It can be reduced significantly compared to the conventional one.

Further, in the air conditioning duct of the second aspect, since the opening area of the air supply / exhaust port is changed by operating the air volume adjusting mechanism, there is an advantage that the air volume of the conditioned air can be adjusted.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of an air conditioning duct of the present invention.

2 is a top view showing the air conditioning duct of FIG. 1. FIG.

3 is a side view showing the air conditioning duct of FIG. 1. FIG.

FIG. 4 is a cross-sectional view showing the air conditioning duct of FIG.

5 is a perspective view showing an example of laying the air conditioning duct of FIG. 1. FIG.

FIG. 6 is an explanatory diagram showing another example of an air volume adjusting mechanism.

FIG. 7 is an explanatory diagram showing still another example of the air volume adjusting mechanism.

FIG. 8 is an explanatory view showing an example of laying a conventional air conditioning duct.

FIG. 9 is an explanatory view showing another example of laying a conventional air conditioning duct.

[Explanation of symbols]

 21 duct main body 27, 29 end plate 31 connection convex part 33 connection port 39 lower surface part 53 air supply / exhaust port 55 air volume adjustment mechanism

Claims (2)

[Claims] 1. A shape in which both ends of each of a plurality of divided duct main bodies are hermetically sealed by end plates, and a connection convex portion is formed on the one end plate, and the connection convex portion can be inserted into the other end plate. On the other hand, on the lower surface of the duct body,
An air-conditioning duct, characterized in that an air-conditioning air supply / exhaust port is formed, and a lighting fixture is fixed to the lower surface of the duct body. 2. The air conditioning duct according to claim 1, further comprising an air volume adjusting mechanism for changing an opening area of the air supply / exhaust port.