JPH0356840Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention relates to an air outlet for indoor air conditioning that is formed integrally with a lighting device.

(Prior art) For example, a device in which the air outlet and inlet for indoor air conditioning are integrated with the case of a lighting fixture is disclosed in Japanese Patent Laid-Open No. 59
- Published as No. 99603 and No. 99604.

The devices described in the above publications all have an air outlet at one end of the lighting equipment case, an air suction outlet at the other end, and an airflow deflection device at the outlet.
It is characterized by giving directionality to the blown air.

(Problems to be solved by the invention) The above-mentioned conventional method is limited to the description of giving directionality to the blown air, and it is shown that a guide member that simply guides the wind is provided as a means to obtain the directionality. Therefore, it could not be expected to blow out conditioned air evenly distributed over a wide area for indoor air conditioning.

(Means for solving the problem) The present invention eliminates the above-mentioned conventional disadvantages and maintains a good indoor environment by uniformly dispersing conditioned air. A lighting device case formed in a cylindrical shape has at least one end of the cylindrical portion serving as an air outlet chamber, and an end plate having a communication port with an air supply duct in the center is bound to the upper surface of the outlet chamber. , a conical cylindrical distribution tube with its lower end closed and a ventilation hole provided in the inclined wall of the circumference is installed on the lower surface of the chamber, with the small diameter part as the lower part, and furthermore, on the lower surface of the blowout chamber, the central part is left as a blind plate, and the surrounding area is It is characterized in that a blow-off plate having a large number of small blow-off holes is mounted on its inner surface with a wind direction plate having a plurality of concentric blades arranged in a concentric ring shape and slanted outward and downward.

(Function) In the air outlet of the present invention, the air sucked into the outlet chamber from the air duct through the communication port in the upper end plate is uniformly dispersed in the circumferential direction from the vent in the inclined wall on the peripheral surface of the distribution cylinder. After the air is blown diagonally downward, it is guided by the slanted blades of the wind direction plate and diffused outward, while being distributed widely and uniformly into the room from the blow-off holes of the blow-off plate attached to the bottom of the blow-off chamber. Since the center of the blow-off plate is a blind plate with no holes, the blow-out air does not blow directly downward from the center, allowing for smooth diffusion around the surrounding area.
In addition to indoor air conditioning, the heat generated from the lighting equipment is dispersed by ventilation around the lighting equipment to improve the indoor environment.

(Example) Embodiments of the present invention will be described with reference to the drawings.

In the drawing, a shows a case of a lighting fixture using a fluorescent lamp b, and integrally with the case a, a cylindrical air blowing chamber 1 is formed at one end with the top and bottom open, and a suction chamber is formed at the other end. Although the mouth chamber 2 is shown in the figure, both ends thereof may be used as a blowout chamber, or a smoke detector or the like may be installed within the cylindrical portion, or a speaker or the like may be attached and used. An end plate 3 having a communication port 4 in the center that communicates with an air supply duct (not shown) via a flexible connecting pipe c or the like is attached to the upper open end of the outlet chamber 1 to close the upper part of the chamber 1. The lower surface of the end plate 3 has a peripheral inclined wall 5a.
A conical cylindrical distribution pipe 5 with a plurality of vent holes 6 opened at equal intervals is communicated with the communication port 4 of the end plate 3 with its large diameter part facing upward, and its small diameter part facing downward, for example, on the lower surface of the upper end plate 3. On the support pin 5d protruding in advance,
The piping tube 5 and the hook-shaped groove 5c formed in the flange are fitted and locked together, or other appropriate means are used for attachment. At the lower opening of the blow-off chamber 1, a blind plate portion 7a without holes is left in the center, and a large number of blow-off holes 8 are formed around the blind plate portion 7a.
A blow-out plate 7 formed by punching out a fork-shaped spring suspension piece 9 provided on opposite sides of the blow-out plate 7 is fixed with a fixed pin 9a.
Further, on the inner surface thereof, a wind direction plate 10 having a plurality of concentric ring-shaped blades 11 facing outward and slanted downward was superimposed.

In the illustrated example, the wind direction plate 10 has a hexagonal planar shape, but the shape is not limited to this and may be circular or any other arbitrary shape without any problem.

The lighting equipment case a having the above-described air outlet integrally formed therein can be mounted on a ceiling surface and used for lighting, and at the same time communicate the communication port 4 of the upper end plate 3 with the air duct through the connecting pipe c in the ceiling. It is used as an outlet for indoor air conditioning, and safety equipment such as smoke detectors is installed as necessary.

(Effect of the invention) According to the invention, the cylindrical part formed at least at one end of the lighting equipment case is used as a blowout chamber for conditioned air, and the upper end plate has a communication port with the air supply duct in its upper opening; a conical cylindrical distribution cylinder having a ventilation hole in the inclined peripheral wall is attached to the lower surface, and the lower end opening of the chamber has a blind part in the center, and a blow-off plate having a large number of blow-off holes around the blind part;
Since the air outlet is formed by stacking wind direction plates each having a plurality of inclined blades arranged in a concentric ring shape on the inner surface of the chamber, the air blown into the chamber is uniformly distributed into the room by these members. The air is diffused and blown out to improve the indoor environment, and maintenance is easy.Both the top and bottom surfaces of the case are flat, so multiple cases can be stacked vertically, and it can be used in conjunction with lighting equipment, making it economical. This has the effect of providing a unique air outlet.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a perspective view from below, FIG. 2 is a perspective view of the case with components disassembled, and FIG. 3 is a cross-sectional side view of the main parts. a...Lighting equipment case, b...Fluorescent lamp, 1...
Air blowing chamber, 2... Suction chamber, 3
... Upper end plate, 4 ... Communication port, 5 ... Distribution tube, 6
...Vent hole, 7...Blowout plate, 7a...Blind plate, 8...
...Blowout hole, 10... Wind direction plate, 11... Inclined blade.

Claims (1)

[Scope of utility model registration request] A lighting equipment case is formed into a cylindrical shape with vertical openings at both ends, and at least one end of the cylindrical portion is used as an air outlet chamber, and a communication port with an air supply duct is provided in the center on the upper surface of the outlet chamber. The end plates are tied together, and a conical cylindrical piping cylinder with its lower end closed and a ventilation hole provided in the inclined wall on the circumference is attached to the lower surface of the chamber, with the small diameter part at the bottom, and the center part is attached to the lower surface of the blowout chamber. A blow-out plate with many small blow-off holes arranged around it is left as a blind plate, and a wind direction plate with multiple blades arranged in a concentric ring shape facing outward and slanting downward is attached to the inner surface of the blow-out plate. An air outlet that utilizes a lighting equipment case.