JP5881976B2 - Floor blowing air conditioner - Google Patents

Description

  The present invention relates to a floor blowing air conditioner that supplies conditioned air from below the floor through a breathable tile carpet and a floor blowing outlet.

  Conventionally, a floor blowing air conditioner that supplies conditioned air into the room from under the floor is known (see, for example, Patent Documents 1 and 2).

  In an air conditioner like patent document 1, as shown to FIG. 7 (1), double floor 3 is provided from the blower outlet 2 of the corner side end part under the floor member 1 which has many air supply holes (not shown) in the whole surface. The air flow 4 for air conditioning is blown into the interior of the interior by a one-side blowing method, and the conditioned air is supplied from the floor member 1 through the air-permeable tile carpet 5 or the perforated tile carpet. In this case, as shown in FIG. 7B, the air flow 4 inside the double floor 3 flows along the wall surface, and the pressure of the air flow portion tends to increase.

JP 2009-264638 A Japanese Patent Laid-Open No. 10-170061

  By the way, in the case of a full-floor blowing air conditioner, the under-floor differential pressure distribution when a lightweight tile carpet that is cheaper than the conventional product is used as the breathable tile carpet, as shown in FIG. It became clear by the present inventors' study that it becomes the same tendency as (2). In this case, the maximum differential pressure is close to the allowable maximum pressure calculated from the weight of the lightweight tile carpet, and the lightweight tile carpet may peel off from the floor surface.

  Further, even in the case of the partial floor blowing air conditioner, the underfloor differential pressure distribution has the same tendency as in FIG. 7 (2). .

  In this way, when the maximum differential pressure of the full-floor blow-out air conditioner is close to the maximum allowable pressure, if the floor surface with air permeability is blocked by furniture or the cable is laid under the floor, the differential pressure below the floor Since it further increases, a situation exceeding the upper limit differential pressure (allowable maximum pressure) is expected, and in the worst case, the lightweight tile carpet may peel off from the floor surface. Also, in the case of a partial floor blowout air conditioner, it is expected that the air volume obtained from each floor blowout will not be uniform. For this reason, it has been desired to develop a technology capable of making the under-floor differential pressure uniform.

  This invention is made | formed in view of the above, Comprising: It aims at providing the floor blowing air conditioner which can aim at equalization of underfloor differential pressure.

In order to solve the above-described problems and achieve the object, a floor outlet air-conditioning apparatus according to claim 1 of the present invention includes a floor member provided at the lower part of a chamber and having a large number of air supply holes on the entire surface, and an upper surface of the floor member. blown and breathable carpet or perforated carpet provided, and the air supply chamber formed in the lower portion of the front Kiyuka member, provided at an end of the air supply chamber, the conditioned air into the air supply chamber to and a blow-out port, the air supply conditioned air blown out into the chamber, through the floor member and breathable carpet or perforated carpet provided on the upper surface of the floor member having a plurality of feed holes on the entire surface the air conditioning apparatus of the floor blow method supplied into the chamber, in front of the air outlet, arranged resistance zone of the rod-shaped narrowing the effective opening area of the air outlet near to surround the air outlet, wherein The height of the anti-band is set to ½ to 2/3 of the height inside the air supply chamber, and the air flow distribution in the air supply chamber downstream from the resistance band is made uniform to make the differential pressure under the floor uniform. characterized in that way the.

  According to the present invention, the floor member provided at the lower part of the chamber and having a large number of air supply holes on the entire surface and the air-permeable carpet or perforated carpet provided on the upper surface of the floor member, or provided at the lower part of the chamber. A floor outlet that is installed through the floor member and the floor finish, an air supply chamber formed at a lower portion of the floor member, and an end of the air supply chamber, and is provided in the air supply chamber. A floor member having a number of air supply holes on the entire surface, and a breathable carpet or hole provided on the upper surface of the floor member. A floor blowing type air conditioner that feeds the room through a floor carpet or a floor blowing outlet that is installed through the floor member and the floor finishing material, on the front of the blowing outlet, Is provided with the resistance band narrowing the effective opening area in the vicinity of the outlet, the resistance zone acts to prevent the air flow from the air outlet. For this reason, the momentum of the airflow flowing along the air supply chamber wall surface is weakened, and the airflow distribution in the air supply chamber downstream from the resistance zone is made uniform. Therefore, there is an effect that the underfloor differential pressure can be made uniform.

FIG. 1 is a plan sectional view showing a first embodiment of a floor blowing air conditioner according to the present invention. FIG. 2 is a cross-sectional view taken along line AA in FIG. FIG. 3 is a cross-sectional plan view showing a second embodiment of the floor blowing air conditioner according to the present invention. 4 is a cross-sectional view taken along line BB in FIG. FIG. 5 is a plan sectional view showing the layout of the resistance bands. FIG. 6 is a cross-sectional plan view showing the under-floor differential pressure distribution of the prior art and the present invention. FIG. 7 is a cross-sectional plan view showing the under-floor differential pressure distribution of a conventional full-floor blowing air conditioner.

  Embodiments (Examples 1 and 2) of a floor blowing air conditioner according to the present invention will be described below in detail with reference to the drawings. Here, Example 1 is a case of a full-floor blowing type air conditioner, and Example 2 is a case of a partial floor blowing type air conditioner. Note that the present invention is not limited to the embodiments.

[Example 1]
First, Example 1 (entire floor blowout type air conditioner) will be described.
As shown in FIGS. 1 and 2, the floor blowing air conditioner 10 according to the first embodiment of the present invention is a full-floor blowing type air conditioner, and is provided at a lower portion of a chamber 12 and has a large number of air supply holes ( (Not shown), a breathable tile carpet or perforated tile carpet 16 (breathable carpet or perforated carpet) provided on the upper surface of the floor member 14, And a rectangular parallelepiped air supply chamber 18 formed as a floor.

  An air outlet 20 is provided at the corner side end of the air supply chamber 18 to blow out the conditioned air sent from a fan (not shown) into the air supply chamber 18 by a one-side blowout method. The conditioned air blown into the air supply chamber 18 is supplied into the chamber 12 through the floor member 14 and the breathable tile carpet or perforated tile carpet 16.

  On the front surface of the air outlet 20, a rod-like resistance band 22 that narrows the effective opening area in the vicinity thereof is arranged linearly over the entire chamber width. Here, the height h of the resistance band 22 is preferably about 1/2 to 2/3 of the height H inside the air supply chamber 18.

  Since the resistance band 22 hinders the airflow from the air outlet 20, the momentum of the airflow flowing along the wall surface of the air supply chamber 18 is weakened, and the airflow distribution in the air supply chamber 18 downstream from the resistance band 22 is made uniform. Thereby, it is possible to make the differential pressure under the floor uniform.

  Further, the provision of the resistance band 22 makes the air flow uniform, and the maximum wind speed decreases, so that the maximum differential pressure under the floor can be lowered. Thereby, it is possible to prevent the lightweight air-permeable tile carpet or the perforated tile carpet 16 from being peeled from the floor member 14. Furthermore, since the variation in the amount of air blown from the floor surface is suppressed and the air flow becomes uniform, a comfortable air conditioning environment can be created in the room.

  Moreover, this resistance band 22 can also be arrange | positioned so that the front surface of the blower outlet 20 may be enclosed, as shown in FIG. For example, the resistance band 22a is disposed in the width direction of the chamber at a position separated by D in front of the air outlet 20, and is located L away from the opening end of the air outlet 20 (L is larger than the air outlet width). The resistance band 22b may be disposed in the depth direction of the room at a location that is only longer. In this case, it is preferable that D is about 0.5 to 1 m and L is 1 m or more.

  FIG. 6 is a comparison of the underfloor differential pressure distribution of the present invention (corresponding to the configuration of FIG. 1) in which the resistance band is provided linearly over the entire room width and the conventional underfloor differential pressure distribution without the resistance band. is there. As shown in FIG. 6, in the conventional method in which no resistance band is provided, the wall has a differential pressure distribution with a biased high pressure. On the other hand, in the case of the present invention, it can be seen that the maximum differential pressure is reduced as a result of the uniform pressure differential distribution as compared with the conventional method.

  Thus, even in the case of the one-side blowing method, it is possible to make the underfloor differential pressure uniform by suppressing the variation in the underfloor differential pressure. Further, since the maximum differential pressure is reduced, it is possible to prevent the light-type air-permeable tile carpet and the like from being peeled from the floor member. Furthermore, since the variation in the amount of air blown from the floor surface is suppressed and the air flow becomes uniform, a comfortable air conditioning environment can be created in the room.

[Example 2]
Next, Example 2 (partial floor blowing type air conditioner) will be described.
As shown in FIGS. 3 and 4, the floor blowing air conditioner 23 according to the second embodiment of the present invention is a partial floor blowing type air conditioner, and includes a floor member 24 provided in a lower portion of the chamber 12, and a floor member. The floor finishing material 25 is provided on the upper surface 24, and the floor member 24 and the floor outlet 26 attached through the floor finishing material 25 are provided. A rectangular parallelepiped air supply chamber 18 formed as a double floor is provided below the floor member 24.

  An air outlet 20 is provided at the corner side end of the air supply chamber 18 to blow out the conditioned air sent from a fan (not shown) into the air supply chamber 18 by a one-side blowout method. The conditioned air blown into the air supply chamber 18 is supplied into the chamber 12 through a floor outlet 26 attached through the floor member 24 and the floor finish 25.

  On the front surface of the air outlet 20, a rod-like resistance band 22 that narrows the effective opening area in the vicinity thereof is arranged linearly over the entire chamber width. Here, the height h of the resistance band 22 is preferably about 1/2 to 2/3 of the height H inside the air supply chamber 18 as in the first embodiment. Moreover, this resistance band 22 can also be arrange | positioned so that the front surface of the blower outlet 20 may be enclosed, as shown in FIG.

  As in the first embodiment, since the resistance band 22 prevents the airflow from the outlet 20, the momentum of the airflow flowing along the wall surface of the air supply chamber 18 is weakened, and the inside of the air supply chamber 18 downstream from the resistance band 22. The airflow distribution is uniform. Thereby, it is possible to make the differential pressure under the floor uniform.

  Further, by providing the resistance band 22, the air flow distribution in the air supply chamber 18 is made uniform and the air flow blown out from the floor blow-out port 26 becomes uniform. A device for adjusting the blown air volume at each of the mouths 26 becomes unnecessary, and a comfortable air-conditioning environment can be created in the room.

  As described above, according to the present invention, the floor member provided in the lower part of the chamber and having a large number of air supply holes on the entire surface thereof, and the air permeable carpet or perforated carpet provided on the upper surface of the floor member, or A floor outlet provided at the lower part of the chamber and a floor outlet installed through the floor finishing material, an air supply chamber formed at the lower part of the floor member, provided at an end of the air supply chamber, An air outlet for blowing out conditioned air into the air supply chamber, and the air conditioned air blown into the air supply chamber is provided on a floor member having a large number of air supply holes on the entire surface and on the upper surface of the floor member. A floor blowing type air conditioner that supplies air into a room through a breathable carpet or a perforated carpet, or through a floor blowing port that is installed through the floor member and a floor finish. In front of the outlet, is provided with the resistance band narrowing the effective opening area of the air outlet near the resistance zone acts to prevent the air flow from the air outlet. For this reason, the momentum of the airflow flowing along the air supply chamber wall surface is weakened, and the airflow distribution in the air supply chamber downstream from the resistance zone is made uniform. Therefore, the underfloor differential pressure can be made uniform.

  As described above, the floor blowing air-conditioning apparatus according to the present invention is useful for an air-conditioning apparatus that supplies conditioned air into the room from below the floor through a breathable tile carpet, a perforated tile carpet, or a floor blowing outlet. Suitable for making the differential pressure uniform.

10 Full-floor blow-out air conditioner 12 rooms 14 Floor members 16 Breathable tile carpet or perforated tile carpet (breathable carpet or perforated carpet)
18 Air supply chamber 20 Air outlet 22, 22 a, 22 b Resistance zone 23 Partial floor outlet air conditioner 24 Floor member 25 Floor finish 26 Floor outlet

Claims (1)

A floor member and breathable carpet or perforated carpet provided on the upper surface of the floor member having a plurality of feed holes on the entire surface is provided in the lower part of the chamber, the air supply chamber formed in the lower portion of the front Kiyuka member An air outlet provided at an end of the air supply chamber and for blowing out conditioned air into the air supply chamber, and the air conditioned air blown into the air supply chamber has a large number of air supply holes on the entire surface. the air conditioning apparatus of the floor blow method supplied into the chamber through the floor member and breathable carpet or perforated carpet provided on the upper surface of the floor member,
A rod-shaped resistance band that narrows the effective opening area in the vicinity of the air outlet is disposed on the front surface of the air outlet so as to surround the air outlet, and the height of the resistance band is 1 / of the height inside the air supply chamber. The floor blowing air conditioner characterized in that the airflow distribution in the air supply chamber downstream from the resistance band is made uniform by 2/2/3 to make the differential pressure under the floor uniform .