JPH1144453A - Room temperature uniforming device for cassette air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem that in warm air does not reach a floor face when a room space having a high ceiling height is heated by a cassette air- conditioner installed on a ceiling. SOLUTION: This room temperature uniforming device is provided with a fan box 2 having a small Sirocco fan built therein which is attached to a cassette air conditioner 1 mounted on a ceiling, and indoor air is sucked by the small Sirocco fan and supplied to a plurality of induction nozzles 9 opened around the air conditioner 1 by a flexible pipe 8 and jetted downward so as to uniform room temperature by inducing warm air stagnating in an upper part of a room space to flow to a lower part of the room space and heating efficiency is enhanced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a cassette air conditioner mounted on a ceiling (hereinafter referred to as a ceiling cassette air conditioner,
The present invention relates to a room temperature equalizing apparatus for a cassette air conditioner, in which high-temperature air stagnating in an upper part of a room is attracted to a lower part of the room during heating by a fan coil unit mounted on a ceiling (including a fan coil unit mounted on a ceiling) to thereby make room temperature uniform.

[0002]

2. Description of the Related Art Recently, office buildings tend to have high ceilings, and air conditioning in office rooms having high ceilings is mostly performed by a ceiling cassette air conditioner. The above-mentioned ceiling cassette air conditioner blows out warm air from the ceiling surface when heating, but because the ceiling height is high, the warm air does not reach the lower part of the room, it stagnates at the upper part of the room, and the phenomenon that the vicinity of the worker's feet cools may occur Becomes Recently, the ceiling height is 3 to 3.5m
Ceiling cassette air conditioners that can handle high ceilings have also emerged. In addition, there are floor heating devices, underfloor air conditioners, and floor-standing radiators, but these devices have not been widely used because they require a large amount of equipment cost.

On the other hand, in air conditioning of large spaces such as factories, gymnasiums, halls, etc., high-pressure air sent from another delivery through another duct is intermittently injected into a large number of outlet boxes through a duct. There is disclosed an air conditioning method for a large space, in which a suction nozzle is provided to draw warm air from an outlet to a lower part of a room. (For example,
No. 47693)

[0004]

In the above-mentioned conventional ceiling cassette air conditioner for a high ceiling, since the airflow needs to reach the floor surface, the wind speed and volume of the blowout become large, so that the airflow and the noise are not insignificant to the worker. There is a problem of giving discomfort due to the increase in the number. Further, the delivery system using the large space air conditioning method is a large-scale device requiring a high static pressure fan and a duct, and has a problem that the equipment cost is expensive and cannot be applied to a small space such as an office. .

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a method for jetting a jet air downward from a small blower to a plurality of locations around an outlet of a ceiling cassette air conditioner. By adding a simple room temperature equalization device to the conventional ceiling cassette air conditioner, which draws warm air staying in the room to the lower part of the room, the warm air near the ceiling can be drawn to the floor surface, and the room temperature can be made uniform with inexpensive equipment Can be fulfilled.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention relates to a fan box with a built-in small fan and a silencing structure, which is attached to a ceiling cassette air conditioner. A plurality of air outlets connected to the discharge port of the fan are provided, and each of the air outlets is connected to an air line having a flexible tube partially or entirely at the front end. A room temperature equalizing device for a cassette air conditioner, which is provided with an induction nozzle capable of adjusting the direction of the blown air flow, which is distributed near a blow-off opening of the cassette air conditioner and draws high-temperature air in the upper part of the room during heating to the lower part of the room.

[0007] Further, a part of the air duct is a duct fixed to the ceiling cassette air conditioner, and a flexible pipe having an induction nozzle attached to a tip thereof is connected to a plurality of locations of the duct. In some cases, the ceiling cassette air conditioner and the apparatus of the present invention are integrated with each other by being dispersedly attached to the edge of the decorative plate of the cassette air conditioner.

[0008]

Embodiments will be described with reference to the drawings.
FIG. 1 is a perspective view showing an example in which the device of the present invention is attached to an existing ceiling cassette air conditioner. FIG. 2 is a diagram showing the same device of the present invention integrally formed with the ceiling cassette air conditioner. FIG. 3, FIG. 4, and FIG. 5 show a plan view, a front view, and a right view of a fan box, and FIG. 6 shows a ceiling cassette air conditioner of FIG. 1 viewed from below. FIG.

The ceiling cassette air conditioner 1 has a decorative plate 1a having a central suction port and a peripheral discharge port formed on the lower surface of the main body as shown in FIG. 2 is attached.

The fan box 2 incorporates a small sirocco fan 3 and has a soundproof structure by lining a soundproof material 4 on the inner surface.
An intake pipe 6 having an intake port 5 on one side and opening indoors is connected thereto, and four air outlets 7 connected to a discharge port of the sirocco fan 3 are provided on the opposite side, and flexible pipes 8 are connected to each of them. Attraction tips 9 are attached to the distal ends of the flexible pipes 8, respectively, and are distributed and arranged on the ceiling near the periphery of the decorative board 1a of the ceiling cassette air conditioner 1 and open to the room. Reference numeral 10 denotes a mounting seat provided on the fan box 2, and reference numeral 11 denotes a terminal block.

FIG. 2 shows another embodiment in which the apparatus of the present invention is integrated into a ceiling cassette air conditioner 1. In this case, the fan box 2 is basically the same as that shown in FIGS. 3, 4 and 5. Although the configuration is similar, the configuration of the suction port 5a and the blow port 7a is different, and the suction port 5a is provided below the fan box 2 and opens to the suction passage of the indoor air of the ceiling cassette air conditioner 1. Are open at both left and right end surfaces of the fan box 2 and communicate with a duct 8a formed along the periphery of the upper end of the main body of the ceiling cassette air conditioner 1.

A short flexible pipe 8b having an induction nozzle 9 attached to the tip thereof is attached to an opening of the duct 8a which opens downward at four corners, and the induction nozzle 9 is provided with a decorative plate 1a of a ceiling cassette air conditioner. In the four corners of
It is installed open to the indoor side.

FIG. 7 is an explanatory view showing the operation of the present invention in comparison with the conventional one. FIG. 7 (A) shows the operation of the conventional one, and the ceiling cassette air conditioner 1 sucks indoor air from the center. Warm air is discharged from the periphery, but this warm air does not reach the floor when the ceiling height is high, stagnates at the upper part of the room, the lower part of the room where people are in is in a low temperature zone, especially the feet are cold and heating is effective Had difficulty working.

FIG. 7 (B) shows the operation of the present invention, in which the airflow strongly blowing downward from around the ceiling cassette air conditioner 1 induces the stagnant warm air in the upper part of the room to the lower part of the room, thereby equalizing the room temperature. Thus, the low temperature zone in the lower part of the room can be eliminated. Since the amount of the induced airflow is small, the induced airflow does not increase so as to be conscious of the airflow and noise, and does not harm the environment.

[0015]

The present invention is embodied in the form described above and has the following effects.

By attaching a simple device to the ceiling cassette air conditioner, warm air stagnates in the upper part of the room during heating,
By eliminating the formation of a low-temperature zone in the lower part of the room, the room temperature can be easily and uniformly reduced at low cost without increasing the indoor set temperature of the air conditioner.

It is economical because it can be easily attached to an existing ceiling cassette air conditioner on site.

Since the induction nozzle is attached to the flexible pipe, it can be attached by freely adjusting the blowing direction of the air current by utilizing the flexibility.
When installing on an existing ceiling cassette air conditioner, the fan box can be installed at any convenient location, and the induction nozzle can be installed easily using the existing ceiling frame material etc. as a mounting base. You can choose.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a state in which an apparatus for equalizing room temperature of the present invention is attached to an existing ceiling cassette air conditioner.

FIG. 2 is a perspective view showing a state where the room temperature equalizing apparatus of the present invention is integrally assembled with a ceiling cassette air conditioner.

FIG. 3 is a plan view of a fan box of the room temperature equalizing apparatus of the present invention shown in FIG.

FIG. 4 is a front view of the fan box.

FIG. 5 is a side view of FIG. 4 as viewed in the direction of arrow P.

FIG. 6 is a view of FIG. 1 attached to a ceiling and viewed from below.

FIG. 7 is an explanatory diagram comparing the operation of the present invention with a conventional ceiling cassette air conditioner.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Ceiling air conditioner 1a Decorative board 2 Fan box 3 Sirocco fan 4 Soundproof interior material 5,5a Suction port 6 Intake pipe 7,7a Blow port 8,8b Flexible pipe (Blow pipe) 8a Duct (Blow pipe) 9 Induction nozzle 10 Mounting base 11 Terminal block

Claims (2)

[Claims] 1. A fan box with a built-in silencer, which has a built-in miniature fan and is attached to a cassette air conditioner mounted on a ceiling. An air intake port that communicates with a suction portion of a room or the cassette air conditioner and a discharge port of the miniature fan. A plurality of continuous air outlets are provided, and each of the air outlets is connected to an air duct having a flexible tube partially or entirely at the tip end, and at the tip of the air duct, near the outlet of the cassette air conditioner. A room temperature equalizing device for a cassette air conditioner, which is provided with an induction nozzle for distributing and distributing high-temperature air in the upper part of the room at the time of heating to the lower part of the room. 2. A part of the air duct is a duct fixed to the cassette air conditioner, and a flexible pipe having an induction nozzle attached to a tip thereof is connected to a plurality of portions of the duct, and the induction nozzle is connected to the cassette air conditioner. The room temperature uniforming device for a cassette air conditioner according to claim 1, wherein the device is distributed and attached to an edge of a decorative plate of the air conditioner.