JPH07225590A - Broadcast equipment using air conditioning ducts - Google Patents

Abstract

(57) [Summary] [Purpose] To eliminate the need to mount the speaker on the ceiling surface, improve the workability and design on the ceiling surface, and eliminate obstacles when changing partitions. [Structure] One end of a main duct 5b is connected to a supply chamber 3a of an air conditioner 3. The other end of the main duct 5b is branched into a plurality of branch ducts 5a. The air outlets 7 connected to the respective ends of the branch ducts 5a are dispersedly attached to the ceiling surface 1. Speaker 2 that outputs broadcast sound toward the opening of the main duct 5b that opens inside the supply chamber 3a
1 is provided in the supply chamber 3a.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a broadcasting facility using an air conditioning duct. More specifically, it is not necessary to mount a speaker on the ceiling surface, and a single speaker can broadcast sound to a plurality of branched air passages. Is to be distributed.

[0002]

2. Description of the Related Art For example, on a ceiling surface of a store, an office, etc., equipment such as lighting equipment, fire detectors, air conditioner outlets / suctions, speakers, etc. are appropriately dispersed and installed. FIG. 2 is an explanatory diagram showing a device installation state of the ceiling portion. The air outlets 7 connected to the supply ducts 5 of the air conditioner 3 are dispersedly attached to the ceiling surface 1 to which lighting devices, fire detectors, and the like (not shown) are attached, and the air outlets 7 are conditioned air from the air conditioner 3. To the air-conditioned space 9. In addition, the suction ports 13 connected to the return duct 11 of the air conditioner 3 are dispersedly attached to the ceiling surface 1, and the air in the air-conditioned space 9 is collected from the suction port 13 to the air conditioner 3 side through the return duct 11.

On the other hand, a plurality of speakers 15 for air conditioning space broadcasting are attached to the ceiling surface 1, and the speakers 15 are appropriately dispersed and arranged in an attachment space other than the air outlet 7 and the air inlet 13. The speaker 15 is connected to a broadcast sound generator (not shown) and outputs sound, BGM, etc. to the air-conditioned space. By disposing the speakers 15 in a distributed manner on the ceiling surface 1, the broadcast sound can be efficiently emitted at an appropriate volume in the air-conditioned space 9.
The output is reduced over the entire area, and compared to the case where one loud speaker is installed, the reverberation is reduced and clear listening sound is possible.

[0004]

However, it is complicated to disperse and install a plurality of speakers 15 on the ceiling surface 1, and the ceiling on which the air outlet 7, the air inlet 13, the lighting fixture, the fire detector, etc. are mounted. When the plurality of speakers 15 are further dispersed and attached to the surface 1, the mounting positions are complicated, and the workability of various equipment on the ceiling surface 1 is deteriorated. Further, if a plurality of speakers 15 are further dispersed and attached to the ceiling surface 1 to which the air outlet 7, the suction port 13, the lighting equipment, the fire detector, etc. are attached, the ceiling surface 1 becomes cluttered with the equipment and the ceiling surface. 1
Reduce the design. Further, when the partitions are changed in the air-conditioned space 9, if the speakers 15 are dispersed and attached to the ceiling surface 1, the construction of the partition wall at that position is restricted, or the speakers 15 are relocated. There are some situations that must be made, and this can be an obstacle to changing the partition to some extent. The present invention has been made in view of the above circumstances, and provides a broadcasting facility that uses an air conditioning duct that does not require a speaker to be mounted on the ceiling surface, and thus improves workability on the ceiling surface, improved designability, and partition changes. The purpose is flexibility.

[0005]

In order to achieve the above object, the structure of the broadcasting equipment using the air conditioning duct according to the present invention is such that the other end of the main duct connected to the supply chamber of the air conditioner has a plurality of branches. In a general air conditioning system that branches into ducts and has outlets connected to the ends of the branch ducts distributed on the ceiling surface, broadcast sound is directed toward the main duct opening in the supply chamber. It is characterized in that a speaker for outputting is provided in the supply chamber.

[0006]

[Operation] When the broadcast sound is output from the speaker, the broadcast sound is propagated through the conditioned air flowing toward the outlet as a medium,
It is distributed to a plurality of branch ducts and emitted from each outlet. At this time, conditioned air, which is a medium of sound waves, is transferred in the same direction as the propagation direction of the sound waves, and the broadcast sound is efficiently transmitted. Therefore, the broadcast sound is dispersed and output from one speaker to each outlet, and it is not necessary to attach a plurality of speakers to the ceiling surface.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of a broadcasting facility using an air conditioning duct according to the present invention will be described in detail below with reference to the drawings. The same members as those shown in FIG. 2 are designated by the same reference numerals, and a duplicate description will be omitted. FIG. 1 is a schematic configuration diagram of a broadcasting facility using the air conditioning duct of the present invention. As in the prior art, a plurality of outlets 7 are appropriately dispersed and attached to the ceiling surface 1 to which lighting fixtures, fire detectors and the like (not shown) are attached, and each outlet 7 is connected to a branch duct 5a of the supply duct 5. Has been done. The branch duct 5a is integrated into a main duct 5b, and the main duct 5b is connected to the supply chamber 3a of the air conditioner 3. Therefore, the conditioned air blown from the supply chamber 3a is blown to the main duct 5b, then distributed to the plurality of branch ducts 5a, and blown out from the respective air outlets 7 to the air-conditioned space 9. .

A speaker 21 is provided in the supply chamber 3a, and the speaker 21 outputs broadcast sound toward an opening of a main duct 5b whose end is open in the supply chamber 3a. Speaker 21
A broadcast sound generating device (not shown) is connected to the broadcast sound generating device, and the broadcast sound generating device sends output signals such as sound and BGM to the speaker 21. Further, the speaker 21 may be attached to a portion of the supply duct 5 before being branched into the plurality of branch ducts 5a, that is, the main duct 5b, and may output broadcast sound into the main duct 5b. A broadcasting facility using the air conditioning duct according to the present embodiment is configured by mainly using the air conditioner 3, the supply chamber 3a, the branch duct 5a, the main duct 5b, the outlet 7, and the speaker 21.

The operation of the broadcasting equipment using the air-conditioning duct thus constructed will be described. When the air conditioner 3 is driven, conditioned air is blown from the supply chamber 3a to the main duct 5b, and the conditioned air blown to the main duct 5b is distributed by the plurality of branch ducts 5a, and the air conditioning space is blown from each of the outlets 7. Blow out to 9. At this time, when an output signal such as voice or BGM is sent from the broadcast sound generator and the broadcast sound is output from the speaker 21, the broadcast sound is propagated through the conditioned air flowing toward the outlet 7 as a medium, and a plurality of branches are provided. It will be distributed to the ducts 5a and emitted from each of the outlets 7. That is, since the conditioned air that is a medium of the sound waves is transferred in the same direction as the desired propagation direction of the sound waves (direction of the air-conditioned space), the broadcast sound can be efficiently transmitted.

In the broadcasting equipment using the above-mentioned air conditioning duct, since the conditioned air distributed from the main duct 5b to the branch duct 5a is used as a propagation medium, the broadcasting sound can be output from each speaker 21 to each outlet 7. Broadcast sound is distributed and output at an appropriate volume over the entire air-conditioned space, and clear listening sound with less reverberation is possible. As a result, the ceiling surface 1
There is no need to disperse and install multiple speakers. In addition, multiple speakers are installed on the ceiling surface 1 as in the past.
Since it is not necessary to attach it to the member, the material cost and the construction cost can be significantly reduced.

The speaker 21 can also be used as a device for eliminating the noise of the blower circuit emitted from the air conditioner 3 or the like. That is, a microphone is provided in the air blowing path of the air conditioner 3, noise in the air blowing circuit is detected by this microphone, and a sound wave having a phase opposite to the detected noise is output from the speaker 21. According to this, the noise generated from the air conditioner 3 or the like is canceled by the sound wave of the opposite phase output from the speaker 21, and is erased.

[0012]

As described above in detail, according to the broadcasting equipment using the air conditioning duct according to the present invention, the main duct is branched into the branch ducts, and the outlets connected to the ends of the branch ducts are provided on the ceiling surface. Since the speakers installed in the supply chamber are installed in a distributed manner, and the broadcast sound is output toward the main duct, the broadcast sound from the speaker is propagated through the conditioned air flowing in the outlet direction as a medium, and from the multiple outlets. It will be emitted efficiently. As a result, it is not necessary to attach the speaker to the ceiling surface, the workability and the designability on the ceiling surface can be improved, and the obstacle for changing the partition can be eliminated.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of a broadcasting facility using an air conditioning duct of the present invention.

FIG. 2 is an explanatory diagram showing a device installation state of a ceiling portion.

[Explanation of symbols]

 1 Ceiling Surface 3 Air Conditioner 3a Supply Chamber 5 Supply Duct 5a Branch Duct 5b Core Duct 7 Air Outlet 9 Air Conditioned Space 11 Retan Duct 13 Suction Inlet 15 Speaker 21 Speaker

Claims (1)

[Claims] 1. The other end of a main duct connected to a supply chamber of an air conditioner is branched into a plurality of branch ducts, and outlets connected to respective ends of the branch ducts are dispersed and attached to a ceiling surface. In the general air-conditioning system, the broadcasting using the air-conditioning duct is characterized in that a speaker that outputs a broadcast sound toward the opening of the main duct that opens in the supply chamber is provided in the supply chamber or the like. Facility.