JP3088602B2 - Underfloor air conditioner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an underfloor air conditioner using a double-floor underfloor space as a chamber.
The present invention relates to an underfloor air conditioner for equalizing the amount of air blown from each floor outlet.

[0002]

2. Description of the Related Art In recent years, as office buildings have become more intelligent, a double-floor structure in which a space is provided below the floor is often used. The underfloor air-conditioning system, which effectively utilizes the underfloor space to blow air-conditioned air into the room through the double floor and performs air-conditioning, is suitable for processing the heat load from OA equipment generated in the office. Since the position of the floor outlet can be easily changed according to the layout change in the inside, efficient air conditioning can be performed, so that it is rapidly spreading. In this underfloor air-conditioning system, there is a demand for an air-conditioning system capable of easily making the amount of air blown from each floor outlet uniform for effective air-conditioning.

Heretofore, this type of uniform floor blow air volume has been achieved by adjusting the resistance of each floor blow outlet provided on the floor in accordance with the distribution of the static pressure in the underfloor chamber, thereby providing a blowout with a large underfloor static pressure. In general, the resistance of the outlet is large, and the resistance of the outlet having a small static pressure is reduced, so that the amount of air blown out from the floor outlet is generally equalized according to the distribution of the under-floor static pressure. The configuration will be described below with reference to FIGS. 27 and 28.

[0004] As shown in FIG. 27, the air conditioner 101 supplies the conditioned air 102 to the underfloor chamber 103 formed by the floor panel 107, and blows out the conditioned air into the room 106 through the shutter 104 and the floor outlet 105. The conditioned air is supplied to the ceiling chamber 1 after air conditioning the room.
08 to be returned.

In the above configuration, the conditioned air 102 blown out from the air conditioner 101 to the underfloor chamber 103 generates a large static pressure distribution due to the airflow property in the underfloor chamber 103. Therefore, in order to equalize the amount of air blown from each floor outlet, the opening degree of the shutter 104 provided at each floor outlet 105, that is, the resistance, is all adjusted in accordance with the static pressure distribution.

For example, FIG. 28 shows the result of actual measurement.
The floor has a square shape, and the air conditioner is installed at the corner of the room. The airflow direction and static pressure (Pa) distribution in the underfloor chamber when the resistance of each floor outlet is the same is shown. ing. When the air conditioner is installed in the corner of the room, the static pressure increases in the area where the airflow in the lower corner of the floor collides with the wall due to the characteristics of the airflow under the floor, and the static pressure decreases in the central area below the floor. ing. In this case, depending on the position of each floor outlet, since the static pressure is large at the corner of the room, the opening area of the shutter 104 is reduced to increase the resistance, and the static pressure is small at the center of the room, so that the opening area of the shutter 104 is increased. And reduce the resistance to uniformly adjust the amount of air blown out from each floor outlet.

[0007]

In such a conventional apparatus for equalizing the amount of air discharged from the floor, it is necessary to measure the amount of air and adjust the area of the shutter opening for all the floor air outlets. There has been a problem that it takes a long time to make the jet air volume uniform. Furthermore, although the feature of underfloor air conditioning is that floor outlets can be arranged in accordance with office layouts, the static pressure distribution in the underfloor chamber will also be different if the layout is changed and the floor outlet arrangement is changed, each time as described above. There was a problem that the work of equalizing the amount of the blown air had to be performed.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and has as its first object to easily equalize the amount of air blown from each floor outlet without adjusting the resistance at each floor outlet.

A second object is to make uniform the static pressure in the underfloor chamber easily, irrespective of the position of the air outlet of the air conditioner, and even if the arrangement of the floor air outlet is changed, and to make uniform the static pressure in the underfloor chamber. The purpose of the present invention is to make the amount of the blowing air uniform.

A third object is to automatically equalize the amount of air blown from each floor outlet. A fourth object is to make the amount of air blown from each floor outlet easily uniform with low noise.

A fifth object is to easily equalize the amount of air blown from each floor outlet without adjusting the resistance at each floor outlet.

A sixth object is to easily make the amount of air blown from each floor outlet uniform. A seventh object is to automatically equalize the amount of air blown from each floor outlet.

An eighth object is to make the amount of air blown from each floor outlet easily uniform with low noise.

A ninth object is to disperse the conditioned air blown out from the air conditioner outlet into the underfloor chamber so that the air in the underfloor chamber is changed regardless of the position of the air conditioner outlet and even if the arrangement of the floor outlet is changed. To make uniform the static pressure at the air outlet and to easily equalize the amount of air blown from each floor outlet.

A tenth object is to automatically equalize the amount of air blown from each floor outlet.

An eleventh object is to make the amount of air blown from each floor outlet easily uniform with low noise.

A twelfth object is to equalize the static pressure in the underfloor chamber and easily equalize the amount of air blown from each outlet.

A thirteenth object is to make the amount of air blown from each floor outlet easily uniform with low noise.

[0019]

A first means for achieving the object of the present invention is an underfloor using a double floor.
In air conditioning, an air-conditioner main body, a floor-floor static pressure equalizing means having an opening having a different opening area, and an air-conditioning air blown into the room from under the floor by guiding air-conditioned air blown from the air-conditioner main body under the floor. Is provided.

[0020] In addition, the second means is, underfloor static圧均Ichika means
An opening area adjusting means in the opening of the, adjustable opening area
It has a functional configuration.

[0021] In addition, the third means is, underfloor static圧均Ichika means
Means for detecting the amount of air blown out from the floor outlet , opening area determining means for determining the opening area of the opening of the underfloor static pressure equalizing means based on the detected amount of blowing air, and an opening area based on a signal from the opening area determining means. And an opening area adjusting means for adjusting the distance.

[0022] In addition, the fourth means, underfloor static圧均Ichika means
And a sound absorbing means for absorbing noise generated by pressure loss in the air flow path.

[0023]

[0024]

[0025]

[0026]

[0027]

[0028]

[0029]

The fifth means is to blow air from the air conditioner body.
Conditioned air is guided under the floor, and conditioned air under the floor is blown out to the floor.
Underfloor air-conditioning smell spouting out of the room
As a means for equalizing under-floor static pressure, an arc-shaped air-conditioned air guiding means for guiding an airflow at a corner in a double floor into a horizontal curve is provided.

Further, sixth means, the arcuate conditioned air guiding means, in which a structure having a sound-absorbing means for absorbing the noise generated by the pressure loss at the time of the conditioned air induction.

[0032]

According to the first aspect of the present invention, the underfloor height is small and the static pressure distribution under the floor becomes large depending on the position of the air conditioner outlet, resulting in a large difference in the amount of air blown from the floor outlet. Even in this case, air is supplied from each floor outlet easily without adjusting the resistance at each floor outlet, because the air-conditioning air is uniformly supplied to the underfloor chamber from openings having different opening areas according to the flow path resistance. The air volume can be made uniform.

Further, the resistance of each opening can be adjusted by the structure of the second means, so that the arrangement of the floor outlet is changed regardless of the position of the air outlet of the air conditioner.
The static pressure in the underfloor chamber can be made uniform, and the amount of air blown out from each floor outlet can be easily made uniform.

Further, according to the configuration of the third means, the optimum opening area is determined with respect to the detected air volume at the floor outlet and the detected air volume, and the opening area is automatically adjusted. This allows the static pressure in the underfloor chamber to be uniform and the amount of air blown from each floor outlet to be automatically uniform, regardless of the position of the air outlet of the air conditioner and even if the arrangement of the floor outlets is changed. Is what you can do.

Further, the configuration of the fourth means absorbs the passing noise of the conditioned air generated by the resistance at each opening,
This makes it possible to easily make the amount of air blown from each floor outlet uniform with low noise.

[0036]

[0037]

[0038]

[0039]

[0040]

[0041]

[0042]

According to the fifth means, the airflow at the corners in the underfloor chamber is guided in a curved shape so that the underfloor airflow is dispersed in the underfloor chamber and the static pressure in the underfloor chamber can be easily reduced. This makes it possible to make uniform the amount of air blown out from each outlet.

Further, the configuration of the sixth means absorbs the passing noise of the conditioned air generated by the resistance of the arc-shaped guide plate, and makes it possible to make the amount of air blown from each outlet uniform with low noise. is there.

[0045]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a first embodiment of the present invention will be described with reference to FIGS.
This will be described with reference to FIG.

The same parts as those in the conventional example are denoted by the same reference numerals, and the description is omitted. As shown in the figure, the air conditioner 1
01 supplies the conditioned air 102 to the underfloor chamber 103 formed by the floor panel 107,
3, an air-conditioning air outlet duct 1 that blows out the air-conditioned air 102, a different-area opening 2 having a different opening area according to the static pressure distribution in the air-conditioning air outlet duct 1, and the air-conditioned air 10.
2 is configured to blow out into the room 106 through the floor outlet 105 to perform air conditioning of the room and then return to the air conditioner 101 through the ceiling chamber 108.

With the above configuration, the conditioned air 102 blown out from the air conditioner main body 101 is once blown to the airflow duct 1 having the same air volume.
It is guided to. At this time, since the equal air volume blowout duct 1 has a different air flow volume with an equal opening area due to the static pressure distribution in the equal air volume guide duct 1, as shown in FIG. Is the air conditioner body 101
Since the airflow from the air collides at the end of the straight pipe, the static pressure increases and the opening becomes a small diameter. Further, in the case of blowing from a portion having a small static pressure, an opening having a large equivalent diameter is provided, so that the air volume is blown out from the different area opening 2 with the same static pressure. As a result, the distribution of the static pressure in the underfloor chamber 103 becomes uniform, and a uniform static pressure is also generated in the floor outlet 105, whereby a uniform air volume can be blown into the room 106.

As described above, according to the underfloor air conditioner of the first embodiment of the present invention, the static pressure in the underfloor is made uniform irrespective of the blowout position of the air conditioner body, so that the blowout at each floor blowout port is achieved. The air volume can be easily made uniform without adjusting the air volume.

In this embodiment, the position of the air outlet of the air conditioner 101 is set at the center of the room. However, in the case of a corner, the same area opening portion 2 of the equal air volume outlet duct 1 may be used only on one side facing the underfloor chamber 103. Needless to say, the effect is obtained.

The same-volume outlet duct 1 has a structure in which the openings 2 having different areas are provided. However, instead of the openings 2 having different areas, the arrangement density of the small holes having the same opening diameter is changed to change the arrangement density per unit area. It is needless to say that the same effect can be obtained by using a structure using a diameter.

Next, a second embodiment of the present invention will be described with reference to FIG.
This will be described with reference to FIG.

It is to be noted that the same parts as those in the conventional example are denoted by the same reference numerals, and description thereof will be omitted. As shown in the figure, the air conditioner 1
01 supplies the conditioned air 102 to the underfloor chamber 103, and is provided in the underfloor chamber 103.
2. An equal-flow-rate outlet duct 1 that blows out the second air-flow, a different-area opening 2 having a different opening area according to the static pressure distribution of the equal-flow-rate outlet duct 1, an opening area adjusting plate 3, and an opening that supports the opening area adjusting plate 3 so as to be movable. It is configured to blow conditioned air into the room 106 through the area adjustment plate support 4 and the outlet 105.

With the above configuration, the conditioned air 102 blown out from the air conditioner main body 101 is once blown into the airflow duct 1 having the same air volume.
It is guided to. At this time, since the equal air volume outlet duct 1 has a different air flow volume with an equal opening area due to the static pressure distribution in the equal air volume outlet duct 1, as shown in FIG. Air conditioner body 101
Static pressure increases because the airflow from the air collides at the end of the straight pipe. However, if the shape of the underfloor chamber 103 is complicated or the equal-flow-rate blowing duct cannot be formed as a straight pipe, the pressure distribution at each opening becomes complicated. Therefore, in the case of blowing from a portion with a large static pressure, the opening area is adjusted by the opening area adjusting plate 3 so that the opening has a small equivalent diameter, and in the case of blowing from a portion with a small static pressure, the equivalent diameter is large. By adjusting the opening so as to be an opening, the air volume blows out from the different area opening 2 with the same static pressure. As a result, the distribution of the static pressure in the underfloor chamber 103 becomes uniform, and an equal static pressure is also generated in the floor outlet 105, whereby a uniform air volume can be blown into the room 106.

As described above, according to the underfloor air conditioner of the second embodiment of the present invention, the static pressure in the underfloor chamber is made uniform even if the air outlet position of the air conditioner body and the arrangement of the floor outlets are changed. This makes it possible to easily equalize the amount of air blown from each floor outlet.

In the embodiment, the position of the air outlet of the air conditioner 101 is set at the center of the room. However, in the case of a corner, the same area opening portion 2 of the equal-volume air outlet duct 1 may be used only on one side facing the underfloor chamber 103. Needless to say, the effect is obtained.

The same-volume outlet duct 1 has a structure in which the openings 2 having different areas are provided. However, instead of the openings 2 having different areas, the arrangement density of small holes having the same opening diameter is changed to change the arrangement density per unit area. It is needless to say that the same effect can be obtained even if the equivalent diameter can be adjusted.

Next, a third embodiment of the present invention will be described with reference to FIG.
This will be described with reference to FIG.

The same parts as those in the conventional example are denoted by the same reference numerals and description thereof is omitted. As shown in the figure, the air conditioner 1
01 supplies the conditioned air 102 to the underfloor chamber 103, and is provided in the underfloor chamber 103.
2. An equal-flow-rate blow-off duct 1 for blowing air 2, a different-area opening 2 having a different opening area in accordance with the static pressure distribution in the equal-flow-rate blow-off duct 1, an opening-area adjusting plate 3, and the opening-area adjusting plate 3 are movably supported. An opening area adjusting plate supporting portion 4, an ejection air amount detection device 5 for detecting an air amount ejected from each floor outlet 105, an opening area determination device 6 for determining an opening area for an optimal ejection air amount according to the detected ejection air amount, An opening area adjusting plate driving device 7 for driving the opening area adjusting plate 3 based on a signal from the opening area determining device 6 and an outlet 10
5 is configured to blow out conditioned air into the room 106.

With the above configuration, the conditioned air 102 blown out from the air conditioner main body 101 is once blown to the airflow duct 1 having the same air volume.
It is guided to. At this time, since the equal air volume outlet duct 1 has a different air flow volume with an equal opening area due to the static pressure distribution in the equal air volume outlet duct 1, as shown in FIG. Since the airflow from the machine body 101 collides at the end of the straight pipe, the static pressure increases.
However, if the shape of the underfloor chamber 103 cannot be changed or the equal-volume air outlet duct 1 cannot be formed as a straight pipe, the pressure distribution at each opening becomes complicated. Therefore,
The actual amount of air blown out from each floor outlet 105 is detected by the blown air amount detector 5. If the detected amount of blown air is larger than the amount of air blown out from each outlet 105, the opening area determination device 6 corresponds. A signal is issued to the opening area adjusting plate driving device 7 to drive the opening area adjusting plate driving device 7 so that the opening has a small diameter. If the detected amount of blown air is smaller than the amount of air blown from each outlet, the opening area determining device 6 sends a signal to the opening area adjusting plate driving device 7 to drive the opening area adjusting plate driving device 7 to drive the opening. By the above operation, from the floor outlet 105,
A uniform air volume can be jetted into the room 106.

As described above, according to the underfloor air conditioner of the third embodiment of the present invention, the air flow from each floor outlet is detected regardless of the air outlet position of the air conditioner body and the shape of the floor surface, and the different area openings are provided. By adjusting the opening area of the section, even when the shape of the underfloor chamber is changed, the amount of air blown from each floor outlet can be easily made uniform.

In the embodiment, the position of the air outlet of the air conditioner 101 is set at the center of the room. However, in the case of a corner, the same-area opening 2 of the air outlet duct 1 having the same air volume is set only on one side facing the underfloor chamber 103. Needless to say, the effect is obtained.

The same-volume air outlet duct 1 is provided with the opening 2 having a different area. However, instead of the opening 2 having the different area, the arrangement density of the small holes having the same opening diameter is changed to change the density per unit area. It is needless to say that the same effect can be obtained even if the equivalent diameter can be adjusted.

Next, a fourth embodiment of the present invention will be described with reference to FIG.
This will be described with reference to FIG. The same parts as those in the conventional example are denoted by the same reference numerals, and description thereof will be omitted.

As shown in the figure, the air conditioner 101 supplies the conditioned air 102 to the underfloor chamber 103, and is provided with the air-absorbing equal air volume duct 8 which is provided in the underfloor chamber 103 and is made of a foamed sound absorbing material which blows out the conditioned air 102. The opening duct of the sound-absorbing-equal-volume outlet duct 8 has a different opening area according to the flow path resistance.
The air-conditioned air 102 is blown out into the room 106 through 5.

With the above configuration, the conditioned air 102 blown out from the air conditioner main body 101 is once guided to the duct 8 for blowing out air with equal sound volume. At this time, the sound-absorbing equal-volume blowing duct 8 absorbs the passing sound of the conditioned air generated by the flow path resistance in the sound-absorbing equal-volume blowing duct 8 by the foamed sound absorbing material. Further, the passing sound of the blown air generated by the resistance when passing through the different area opening 2 can be absorbed by the sound absorbing opening area adjusting plate 9.

As described above, according to the underfloor air conditioner of the fourth embodiment of the present invention, since the passing sound of the conditioned air is absorbed by the foamed sound absorbing material, the air conditioner having excellent quietness can be performed.

Although the foamed sound absorbing material is used as the sound absorbing material, it is needless to say that the same effect can be obtained by using another sound absorbing material.

Next, a fifth embodiment of the present invention will be described with reference to FIG.
This will be described with reference to FIGS. The same parts as those in the conventional example are denoted by the same reference numerals, and description thereof will be omitted.

As shown in the figure, the air conditioner 101 radiates conditioned air 102 from the underfloor chamber 1 comprising a floor panel 107.
The radial guide vanes 11 and the conditioned air 102 are supplied to the underfloor chamber 103 and radially guide the conditioned air 102 into the underfloor chamber 103. After performing, the air conditioner 1
It is configured to return to 01.

With the above configuration, the conditioned air 102 blown out from the air conditioner main body 101 is guided to the radial guide vanes 11 immediately after being supplied to the underfloor chamber 103, and is deflected radially. The radial guide vanes 11 have an angle obtained by dividing the release angle of the underfloor chamber 103 by 180 degrees into six equal parts by five guide vanes, that is, have an interval of 30 degrees. The deflected conditioned air 102 is supplied to the underfloor chamber 103.
By diffusing into the interior, the static pressure becomes uniform, and an equal static pressure is also generated in the floor outlet 105, thereby causing
Can blow a uniform amount of air.

As described above, according to the underfloor air conditioner of the fifth embodiment of the present invention, the static pressure in the underfloor is made uniform irrespective of the blowout position of the air conditioner body, so that the blowout at each floor blowout port is achieved. The air volume can be easily made uniform without adjusting the air volume.

In this embodiment, three guide vanes are used for three guide vanes.
Although the uniform interval is set to 0 degrees, it goes without saying that the same effect can be obtained within the range of 20 to 40 degrees.

In this embodiment, the position of the air outlet of the air conditioner 101 is set at the center of the room. However, in the case of a corner, the guide angle of the radial guide vanes 11 is set to 90 degrees as the release angle of the underfloor chamber 103, and the number of guide vanes is determined. It is needless to say that the same effect can be obtained by arranging at equal angles and setting radially.

Next, a sixth embodiment of the present invention will be described with reference to FIG.
This will be described with reference to FIGS.

The same parts as those in the conventional example are denoted by the same reference numerals and description thereof is omitted. As shown in the figure, the air conditioner 1
01 supplies the conditioned air 102 to the underfloor chamber 103, and is provided in the underfloor chamber 103.
2, a radial guide vane 11 for guiding radially into the underfloor chamber 103, and a radial guide vane support 12 for movably supporting the radial guide vane 11.
And it is comprised so that the conditioned air may be blown into the room 106 through the outlet 105.

With the above configuration, the conditioned air 102 blown out from the air conditioner main body 101 is guided to the radial guide vanes 11 immediately after being supplied into the underfloor chamber 103, and is deflected radially. The deflected air-conditioning air 102 diffuses into the underfloor chamber 103 to make the static pressure uniform, and also generates an equal static pressure to the floor outlet 105, so that a uniform air volume can be blown into the room 106. If the arrangement of the floor outlets 105 at this time is changed, the static pressure distribution of the underfloor chamber 103 changes. Therefore, the guide angle is changed by the radial guide vane support portion 12 in accordance with the static pressure distribution, so that the static pressure distribution is changed. Than the part with higher pressure,
The induction airflow is increased for the portion where the static pressure is small. As a result, the distribution of the static pressure in the underfloor chamber 103 becomes uniform, and a uniform air pressure is generated also in the floor outlet 105 so that a uniform air volume can be blown into the room 106.

As described above, according to the underfloor air conditioner of the sixth embodiment of the present invention, the static pressure in the underfloor chamber is made uniform even when the position of the air outlet of the air conditioner body and the arrangement of the floor outlet are changed. This makes it possible to easily equalize the amount of air blown from each floor outlet.

In the embodiment, the position of the air outlet of the air conditioner 101 is set at the center of the room. However, in the case of a corner, the guide angle of the radial guide vanes 11 is set radially within a range facing the underfloor chamber 103. It goes without saying that a similar effect can be obtained.

Next, a seventh embodiment of the present invention will be described with reference to FIG.
This will be described with reference to FIGS.

The same parts as those in the conventional example are denoted by the same reference numerals and description thereof is omitted. As shown in the figure, the air conditioner 1
01 supplies the conditioned air 102 to the underfloor chamber 103, and is provided in the underfloor chamber 103.
The radial guide vanes 11 for guiding radially into the underfloor chamber 103 radially, the radial guide vane support portions 12 for supporting the radial guide vanes 11 so as to be movable, and the jet air volume detecting device 5 for detecting the air volume jetting from each floor outlet 105. A guiding angle determining device 13 for determining a guiding angle for an optimal blowing air amount according to a detected blowing air amount, and a radial guide vane driving device 1 for driving the radial guide vane 11 based on a signal from the guiding angle determining device 13.
The conditioned air 102 is blown into the room 106 through the floor 4 and the floor outlet 105.

With the above configuration, the conditioned air 102 blown out from the air conditioner main body 101 is guided to the radial guide vanes 11 immediately after being supplied to the underfloor chamber 103, and is deflected radially. The deflected air-conditioning air 102 diffuses into the underfloor chamber 103 to make the static pressure uniform, and also generates a uniform static pressure at the floor outlet 105 so that a uniform air volume can be blown into the room 106. If the arrangement of the floor outlets 105 at this time is changed, the static pressure distribution in the underfloor chamber 103 changes, and the amount of air blown out from each floor outlet 105 also changes. Therefore, the actual amount of air blown out from each floor outlet 105 is detected by the blown air amount detector 5, and when the detected amount of blown air is larger than the amount of air blown from each outlet 105,
The radial guide vanes 11 are adjusted so that the air-conditioning air volume guided by the guidance angle judging device 13 is reduced. If the detected blowing volume is smaller than the air volume from each outlet 105, the guiding air-conditioning volume is larger. A signal is sent from the guidance angle determination device 13 to the radial guide vane driving device 14 so as to adjust the radial guide vane 11 so that the radial guide vane 11 is adjusted. With the above operation, the distribution of the static pressure in the underfloor chamber 103 becomes uniform, and a uniform air volume can be blown from the floor outlet 105 into the room 106.

As described above, according to the underfloor air conditioner of the seventh embodiment of the present invention, even if the position of the air outlet of the air conditioner body and the arrangement of the floor outlets are changed, the air volume from each floor outlet is detected. By adjusting the radial guide vanes, the static pressure in the underfloor chamber can be made uniform, and the amount of air blown from each floor outlet can be automatically made uniform.

In the embodiment, the position of the air outlet of the air conditioner 101 is set at the center of the room. However, in the case of a corner, the guide angle of the radial guide vane 11 is set radially within a range facing the underfloor chamber 103. It goes without saying that a similar effect can be obtained.

Next, an eighth embodiment of the present invention will be described with reference to FIG.
This will be described with reference to FIGS.

The same parts as those in the conventional example are denoted by the same reference numerals and the description is omitted. As shown in the figure, the air conditioner 1
01 supplies the conditioned air 102 to the underfloor chamber 103, and is provided in the underfloor chamber 103.
2 through a sound absorbing radial guide vane 15 made of a foamed sound absorbing material that blows out the air, and an outlet 105.
It is configured to blow conditioned air into the air.

With the above configuration, the conditioned air 102 blown out from the air conditioner main body 101 is guided to the sound absorbing radial guide vanes 15 immediately after being supplied to the underfloor chamber 103 and is radially deflected. At this time, the sound absorbing radial guide vanes 15 can absorb the passing sound of the conditioned air generated by the ventilation resistance by the foam sound absorbing material. The deflected air-conditioning air 102 diffuses into the underfloor chamber 103 to make the static pressure uniform, and also generates an equal static pressure at the floor outlet 105, thereby blowing out a low noise and a uniform air volume to the room 106. You can do it.

As described above, according to the underfloor air conditioner of the eighth embodiment of the present invention, since the sound passing through the radial guide vanes of the conditioned air is absorbed by the foamed sound absorbing material, the air conditioner having excellent quietness can be performed.

Although the foamed sound absorbing material is used as the sound absorbing material, it goes without saying that the same effect can be obtained by using another sound absorbing material.

Next, a ninth embodiment of the present invention will be described with reference to FIG.
This will be described with reference to FIGS.

The same parts as those in the conventional example are denoted by the same reference numerals and description thereof is omitted. As shown in the figure, the air conditioner 1
01 supplies the conditioned air 102 to the underfloor chamber 103, and is provided in the underfloor chamber 103.
And a rotating guide vane driving device 17 for driving the rotating guide vane 16 so as to be movable, and an air-conditioning air blown into the room 106 through an outlet 105. ing.

With the above configuration, the conditioned air 102 blown out from the air conditioner main body 101 is guided to the rotating guide vanes 16 immediately after being supplied into the underfloor chamber 103 and deflected by the underfloor chamber 103. Since the rotary guide vane 16 is periodically driven in the underfloor chamber by the rotary guide vane driving device 17, the deflected conditioned air 102 is dispersed in the underfloor chamber 103 to make the static pressure uniform, and the floor outlet The generation of an equal static pressure also in 105 causes a uniform air volume to be blown into room 106. If the arrangement of the floor outlets 105 at this time is changed, the static pressure distribution in the underfloor chamber 103 changes, so that the guide amount of the conditioned air 102 is changed by the rotary guide vane driving device 17 according to the static pressure distribution. By doing so, the induced airflow is increased for a portion having a lower static pressure than a portion having a higher static pressure. Thereby, the distribution of the static pressure in the underfloor chamber 103 becomes uniform, and the floor outlet 1
05 also generates a uniform air volume to the room 106 by generating an equal static pressure.

As described above, according to the underfloor air conditioner of the ninth embodiment of the present invention, regardless of the position of the air outlet of the air conditioner main body and even if the arrangement of the floor air outlet is changed, the inside of the underfloor chamber can be kept static. By making the pressure uniform, the amount of air blown out from each floor outlet can be easily made uniform.

In the embodiment, the position of the air outlet of the air conditioner 101 is set at the center of the room. However, in the case of a corner, the guide angle of the rotary guide vanes 16 is set radially within a range facing the underfloor chamber 103. It goes without saying that a similar effect can be obtained.

Next, a tenth embodiment of the present invention will be described with reference to FIGS.

The same parts as in the conventional example are denoted by the same reference numerals, and detailed description is omitted. As shown in the figure, the air conditioner 101 supplies the conditioned air 102 to the underfloor chamber 103, and the rotating guide vanes 16 disposed in the underfloor chamber 103 and periodically dispersing the conditioned air 102 into the underfloor chamber 103. An ejection air volume detection device 5 for detecting an air volume ejected from the outlet 105, an induction air volume determination device 18 for determining a guidance angle for an optimal ejection air volume according to the detected ejection air volume, and a signal from the induction air volume determination device 18. The air-conditioning air is blown into the room 106 through a rotary guide vane driving device 17 and a floor outlet 105 which are transmitted by a signal line 19 and drive the rotary guide vanes 16.

With the above configuration, the conditioned air 102 blown out from the air conditioner main body 101 is guided to the rotating guide vanes 16 immediately after being supplied into the underfloor chamber 103 and deflected in the underfloor chamber 103. Since the rotating guide vanes 16 are periodically driven in the underfloor chamber 103, the deflected conditioned air 102 is
3, the static pressure becomes uniform, and an equal static pressure is also generated at the floor outlet 105.
6, a uniform air volume can be ejected. If the arrangement of the floor outlet 105 at this time is changed, the underfloor chamber 1
03, the static pressure distribution in each floor outlet 105 is changed.
The amount of air blown out from is also changing. Therefore, the actual amount of air blown from each floor outlet is determined by the amount of blown air detector 5.
If the detected air volume is larger than the air volume from each outlet 105, the induced air volume determination device 1
8, the rotating guide vane 16 is adjusted so that the amount of air-conditioning air to be guided is reduced. If the detected amount of blown air is smaller than the amount of air from each outlet, the rotating guide vane 16 is adjusted so that the amount of air-conditioned air to be guided is increased. A signal is transmitted from the induced airflow determining device 18 to the rotary guide vane driving device 17 so as to adjust the value of the guide vane driving device 16. With the above operation, the distribution of the static pressure in the underfloor chamber 103 becomes uniform, and a uniform air volume can be blown from the floor outlet 105 into the room 106.

As described above, according to the underfloor air conditioner of the tenth embodiment of the present invention, even if the air outlet position of the air conditioner body and the arrangement of the floor air outlets are changed, the air volume from each floor air outlet is detected. By adjusting the rotation guide vanes, the static pressure in the underfloor chamber can be made uniform, and the amount of air blown out from each floor outlet can be made uniform automatically.

In the embodiment, the position of the air outlet of the air conditioner 101 is set at the center of the room. However, in the case of a corner, the guide angle of the rotary guide vane 16 is set radially within a range facing the underfloor chamber 103. It goes without saying that a similar effect can be obtained.

Next, an eleventh embodiment of the present invention will be described with reference to FIGS.

The same parts as those in the conventional example are denoted by the same reference numerals, and description thereof will be omitted. As shown in the figure, the air conditioner 1
01 supplies the conditioned air 102 to the underfloor chamber 103, and is provided in the underfloor chamber 103.
The air-conditioning air is blown into the room 106 through the sound-absorbing rotary guide vane 20 made of a foamed sound-absorbing material that blows out the air and the air outlet 105.

With the above configuration, the conditioned air 102 blown out from the air conditioner main body 101 is guided to the sound absorbing and rotating guide vane 20 immediately after being supplied to the underfloor chamber 103, and is deflected by the underfloor chamber 103. At this time, the sound absorbing rotary guide vane 20 can absorb the passing sound of the conditioned air generated by the ventilation resistance by the foam sound absorbing material. The deflected air-conditioning air 102 diffuses into the underfloor chamber 103 to make the static pressure uniform, and also generates an isostatic pressure at the floor outlet 105, thereby producing low noise and room 10 pressure.
6 can blow a uniform air volume.

As described above, according to the underfloor air conditioner of the eleventh embodiment of the present invention, the noise of the conditioned air passing through the rotating guide vanes is absorbed by the foamed sound absorbing material, so that the air conditioning with excellent noise reduction can be performed.

Although the foamed sound absorbing material is used as the sound absorbing material, it goes without saying that the same effect can be obtained by using another sound absorbing material.

Next, a twelfth embodiment of the present invention will be described with reference to FIGS.

The same parts as those in the conventional example are denoted by the same reference numerals, and description thereof is omitted. As shown in the figure, the air conditioner 1
01 supplies the conditioned air 102 to the underfloor chamber 103 formed by the floor panel 107,
3 and the conditioned air 102, which smoothly guides the conditioned air 102 into the under-floor chamber 103, and the conditioned air 102, through the floor outlet 105,
To the ceiling chamber 1 after air-conditioning the room.
08, the air is returned to the air conditioner 101.

With the above configuration, the conditioned air 102 blown out from the air conditioner main body 101 is supplied to the underfloor chamber 103 to form an airflow pattern in the underfloor chamber 103 in the main flow direction. When the air outlet of the air conditioner 101 is installed in the center of the room as shown in FIG. 23, the conditioned air 102 collides with the wall of the underfloor chamber 103 existing in the front. By smoothly distributing the airflow, the airflow properties can be formed without a large pressure loss. Further, the conditioned air distributed in the center portion approaches the wall of the underfloor chamber 103 again, but by providing the collision airflow guide plate 21 also in this portion, the airflow property can be formed without a large pressure loss. By smoothly guiding the conditioned air 102 to the underfloor chamber 103 in this way, the static pressure becomes uniform, and the floor outlet 10
5 also generates a uniform air volume into the room 106 by generating an equal static pressure.

As described above, according to the underfloor air conditioner of the twelfth embodiment of the present invention, the air volume can be easily made uniform without adjusting the amount of air blown out from each floor outlet.

In the embodiment, the position of the air outlet of the air conditioner 101 is in the center of the room. However, in the case of a corner, the same effect can be obtained by providing the collision airflow guide plates 21 at the four corners. Absent.

Next, a thirteenth embodiment of the present invention will be described with reference to FIGS.

The same parts as those in the conventional example are denoted by the same reference numerals, and description thereof will be omitted. As shown in the figure, the air conditioner 1
01 supplies the conditioned air 102 to the underfloor chamber 103, and is provided in the underfloor chamber 103.
The air-conditioning air is blown into the room 106 through the sound-absorbing collision airflow guide plate 22 made of a foamed sound-absorbing material that blows out the air 2 and the outlet 105.

With the above configuration, the conditioned air 102 blown out from the air conditioner main body 101 is supplied to the underfloor chamber 103, and forms an airflow pattern in the underfloor chamber 103 in the main flow direction. When the air outlet of the air conditioner 101 is installed in the center of the room as shown in FIG. 25, the conditioned air 102 collides with the wall of the underfloor chamber 103 existing in the front. By distributing the airflow smoothly, the airflow properties can be formed without a large pressure loss. Further, the conditioned air distributed in the center portion approaches the wall of the underfloor chamber 103 again, but by providing the sound absorbing collision airflow guide plate 22 also in this portion, the airflow property can be formed without a large pressure loss. At this time, the sound absorbing collision airflow guide plate 22 can absorb the passing sound of the conditioned air generated by the ventilation resistance by the foam sound absorbing material. In this way, the static pressure is made uniform by smoothly guiding the conditioned air 102 to the underfloor chamber 103 by the sound-absorbing impingement airflow guide plate 22, and the static pressure is also generated at the floor outlet 105, resulting in low noise and A uniform air volume can be jetted into the room 106.

As described above, according to the underfloor air conditioner of the thirteenth embodiment of the present invention, since the sound of the conditioned air passing through the sound impingement plate 22 is absorbed by the foamed sound absorbing material, the air conditioning can be performed with excellent noise reduction. Things.

Although the foamed sound absorbing material is used as the sound absorbing material, it goes without saying that the same effect can be obtained by using another sound absorbing material.

[0114]

As is apparent from the above embodiments, according to the present invention, the underfloor inside the underfloor chamber is adjusted without adjusting all the resistance at each floor outlet regardless of the position of the air outlet of the air conditioner. An underfloor air conditioner having an effect that the amount of air blown from each floor outlet can be easily made uniform by the static pressure equalizing device can be provided.

Further, by providing an adjusting section in the underfloor static pressure equalizing device, even if the layout of the room is changed irrespective of the position of the air outlet of the air conditioner, the amount of air blown from each floor outlet can be easily changed. Can be provided.

Further, by detecting the amount of air blown out from the floor outlet, the layout of the room was changed without adjusting all the resistance at each floor outlet regardless of the position of the air outlet of the air conditioner. Even in such a case, an underfloor air conditioner can be provided which has an effect that the amount of air blown from each floor outlet can be easily made uniform.

Further, by using a sound absorbing material in the underfloor static pressure equalizing device, the layout of the room can be changed without adjusting all the resistance at each floor outlet regardless of the position of the outlet of the air conditioner. Even in this case, it is possible to provide an underfloor air conditioner that can easily equalize the amount of air blown out from each floor outlet and is excellent in reducing noise.

[Brief description of the drawings]

FIG. 1A is a plan view of a configuration of an underfloor air conditioner according to a first embodiment of the present invention; FIG.

FIG. 2 is a perspective view of the underfloor static pressure equalizing apparatus.

FIG. 3A is a plan view of a configuration of an underfloor air conditioner according to a second embodiment of the present invention; FIG.

FIG. 4A is a perspective view of the under-floor static pressure equalizing apparatus. FIG. 4B is a cross-sectional view of the under-floor static pressure equalizing apparatus.

FIG. 5A is a plan view of a configuration of an underfloor air conditioner according to a third embodiment of the present invention, and FIG.

FIG. 6 (a) is a perspective view of the underfloor static pressure equalizing apparatus, and (b) is a cross-sectional view of the underfloor static pressure uniforming apparatus.

FIG. 7A is a plan view of a configuration of an underfloor air conditioner according to a fourth embodiment of the present invention, and FIG.

FIG. 8A is a configuration diagram of the under-floor static pressure equalizing device. FIG. 8B is a cross-sectional view of the under-floor static pressure equalizing device.

9A is a plan view of a configuration of an underfloor air conditioner according to a fifth embodiment of the present invention, and FIG.

FIG. 10 is a perspective view of the underfloor static pressure equalizing apparatus.

FIG. 11A is a plan view of a configuration of an underfloor air conditioner according to a sixth embodiment of the present invention;

FIG. 12 is a perspective view of the underfloor static pressure equalizing apparatus.

FIG. 13 (a) is a plan view of a configuration of an underfloor air conditioner according to a seventh embodiment of the present invention.

FIG. 14 is a perspective view of the underfloor static pressure equalizing apparatus.

15A is a plan view of the configuration of an underfloor air conditioner according to an eighth embodiment of the present invention, and FIG.

FIG. 16 is a perspective view of the underfloor static pressure equalizing apparatus.

17A is a plan view of a configuration of an underfloor air conditioner according to a ninth embodiment of the present invention; FIG.

FIG. 18 is a perspective view of the underfloor static pressure equalizing apparatus.

19A is a plan view of the configuration of an underfloor air conditioner according to a tenth embodiment of the present invention, and FIG.

FIG. 20 is a perspective view of the underfloor static pressure equalizing apparatus.

FIG. 21A is a plan view of an underfloor air conditioner according to an eleventh embodiment of the present invention. FIG.

FIG. 22 is a perspective view of the underfloor static pressure equalizing apparatus.

23A is a plan view of a configuration of an underfloor air conditioner according to a twelfth embodiment of the present invention, and FIG.

FIG. 24 is a perspective view of the underfloor static pressure equalizing apparatus.

FIG. 25 (a) is a configuration plan view of an underfloor air conditioner according to a thirteenth embodiment of the present invention.

FIG. 26 is a perspective view of the underfloor static pressure equalizing apparatus.

FIG. 27 is a sectional side view of a configuration of a conventional underfloor air conditioner.

FIG. 28: Underfloor airflow measurement diagram during underfloor air conditioning

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 equal-volume blowing duct 2 different-area opening 3 opening-area adjusting plate 5 jet-air-volume detecting device 6 opening-area judging device 7 opening-area-adjusting-plate driving device 8 sound-absorbing equal-air-volume blowing duct 9 sound-absorbing opening area adjusting plate 11 radial guide vane 13 guide Angle determining device 14 Radial guide vane driving device 15 Sound absorbing radial guide vane 16 Rotating guide vane 17 Rotating guide vane driving device 18 Induction air volume determining device 20 Sound absorbing rotary guide vane 21 Collision airflow induction plate 22 Sound absorption collision airflow induction plate 101 Air conditioner 102 Air conditioning Air 103 Underfloor chamber 105 Floor outlet 106 Room 108 Ceiling chamber

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-2-136642 (JP, A) JP-A-5-87393 (JP, A) JP-A-2-78850 (JP, A) 126397 (JP, A) JP-A-2-17847 (JP, A) JP-A 2-149370 (JP, U) JP-A 62-99751 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) F24F 3/044 F24F 13/068

Claims (6)

(57) [Claims] 1. An underfloor air conditioner using a double floor, in which an air conditioner main body and air-conditioning air blown out from the air conditioner main body are guided under the floor, and an underfloor static pressure equalizing means having openings having different opening areas. An underfloor air conditioner with a floor outlet that blows conditioned air into the room from under the floor. 2. The underfloor air conditioner according to claim 1, wherein an opening area adjusting means is provided at an opening of the underfloor static pressure equalizing means so that the opening area can be adjusted. 3. An underfloor static pressure equalizing means, an outlet air amount detecting means from a floor outlet, and an opening area determining means for determining an opening area of an opening of the underfloor static pressure equalizing means based on the detected outlet air amount. 2. The underfloor air conditioner according to claim 1, further comprising an opening area adjusting means for adjusting an opening area according to a signal from the opening area determining means. 4. The underfloor air conditioner according to claim 1, wherein the underfloor static pressure equalizing means includes a sound absorbing means for absorbing noise generated by a pressure loss in the air conditioning flow path. 5. An underfloor air conditioner in which conditioned air blown out of an air conditioner main body is guided under the floor and conditioned air under the floor is blown into the room from a floor outlet, the underfloor static pressure equalizing means is used as a means for equalizing underfloor pressure in the double floor. An underfloor air conditioner including an arc-shaped air-conditioning air guiding means for guiding an airflow at a corner in a horizontal curve. 6. The underfloor air conditioner according to claim 5, wherein the arc-shaped air-conditioning air guiding means is provided with a sound absorbing means for absorbing noise generated by pressure loss at the time of guiding the air-conditioning air.