JP2000121099A - Substitution ventilation air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To securely substitute contaminated air in a room for fresh cold air and improve outer appearance on a building design. SOLUTION: A wall papering box shaped casing 12 where a front surface plate 20 is constructed with an aluminum sintering panel is provided in the vicinity of a wall surface in a room, and there are provided in the box shaped casing 12 a fresh air introduction indoor air conditioning unit 14, and a circulation passage 16 for circulating cold air blown off from a blowoff outlet 14a in the box shaped casing 12. Fresh cold air is circulated along the circulation passage 16 with the aid of the indoor air conditioning unit 14 and the cold air is passed through the front surface plate 20 based upon an atmospheric pressure difference between pressure in the box shaped casing 12 and pressure in the room and is discharged into the room. Hereby, the cold air is discharged from the front surface plate 20 with a wider discharge area at a very low discharge speed, whereby indoor air is substituted and ventilated without stirring the air in the room. A substitution ventilating air conditioner 10 only allows a wall papering box shaped casing 12 to be observed as its outer appearance so that there is a feeling of physical disorder on a building design.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a so-called displacement ventilation type air conditioner.

[0002]

2. Description of the Related Art In recent years, a displacement ventilation type (or displacement type) air conditioner has been proposed as a configuration of an air conditioner.

[0003] This replacement ventilation type air conditioner is an air conditioner configured to replace room air with fresh cool air, and as shown in FIG. 7, a low position in a room R, for example, a floor near a wall. An indoor air-conditioning unit 102 is installed on a surface or the like, and fresh air is introduced by the indoor air-conditioning unit 102 to cool the air to a temperature slightly lower than the indoor temperature. It is configured to blow out from the outlet 102a of the unit 102 to the lower space of the room R.

[0004] By blowing fresh cold air into the lower space of the room, the air in the room R is gradually pushed upward and discharged from the upper portion of the room R to the outside, whereby the dirty air in the room R is constantly discharged. Replace it with fresh cold.

[0005]

However, in the above-mentioned conventional displacement ventilation type air conditioner, since the cool air is blown directly into the room R from the outlet 102a of the indoor air conditioning unit 102, the blow speed is reduced. It cannot be controlled to a very small value, and therefore, the room air is cooled by the cool air blown out vigorously from the outlet 102a.
Is agitated, and the dirty air in the room R cannot be steadily replaced with fresh cool air.

[0006] Further, in the above-mentioned conventional displacement ventilation type air conditioner, there is also a problem that the appearance is not so good because the indoor air conditioning unit 102 is installed in the room barely.

The present invention has been made in view of such circumstances, and can steadily replace dirty air in a room with fresh cool air, and can enhance the appearance of architectural designs. It is an object of the present invention to provide a displacement ventilation type air conditioner.

[0008]

According to the present invention, the indoor air-conditioning unit is installed in a predetermined box-shaped casing having an air-permeable panel, and a circulation path for cool air is provided in the box-shaped casing. It is intended to achieve the purpose.

In other words, the replacement ventilation type air conditioner according to the present invention is a replacement ventilation type air conditioner configured to replace indoor air with fresh cool air. In the vicinity of the wall surface, a waist wall-shaped box-shaped casing whose front panel is formed of a permeable panel is provided, and inside the box-shaped casing, an outside air introduction type indoor air-conditioning unit and air blown out from the indoor air-conditioning unit And a circulation passage for circulating cool air in the box-shaped casing.

[0010] The above-mentioned "air permeable panel" means a panel configured to allow air to permeate when a pressure difference is generated between both side spaces.

The above-mentioned "waist wall shape" means that the box-shaped casing is formed in a horizontally long rectangular shape like a waist wall in a front view. It need not necessarily be formed over the entire width between the walls or columns.

[0012]

As described above, in the replacement ventilation type air conditioner according to the present invention, a waist wall-shaped box-shaped casing having a front panel made of a permeable panel is provided near the indoor wall surface. The inside of the box-shaped casing is provided with an indoor air-conditioning unit of an outside air introduction type and a circulation passage for circulating the cool air blown out from the indoor air-conditioning unit in the box-shaped casing. The operation and effect can be obtained.

That is, when the indoor air-conditioning unit operates, the outside air introduced into the indoor air-conditioning unit is cooled by the indoor air-conditioning unit, and is blown out as fresh cool air into the box-shaped casing. The cool air thus blown out circulates along the circulation passage in the box-shaped casing, but when the pressure in the box-shaped casing becomes equal to or higher than a predetermined value,
Cold air is discharged into the room through the permeable panel at a speed according to the pressure difference between the inside of the box-shaped casing and the room. Since this permeable panel constitutes the front plate of the box-shaped casing, the cool air is discharged into the room at a very low discharge rate over a wide area.

The cold air that has passed through the air-permeable panel and is released into the room is heavier than the room air, so that a layer is formed near the floor surface and acts to gradually push the room air upward. At this time, when there are heating elements such as humans and OA equipment in the room, the action of raising the air in the room is promoted by these. By discharging the air thus pushed up from the upper part of the room to the outside, the dirty air in the room can always be replaced with fresh cool air.

At this time, since the cool air is discharged from the permeable panel at a very low discharge rate, there is no risk of stirring the indoor air, and the cool air is discharged from the permeable panel over a wide area. The replacement ventilation in the room can be performed efficiently.

Further, in the displacement ventilation type air conditioner according to the present invention, since the indoor air conditioning unit is provided in the box-shaped casing, only the waist-wall-shaped box-shaped casing can be seen from the outside. There is no discomfort in the design. Moreover, the front plate of the box-shaped casing is made of air-permeable panels, and the entire surface is designed with a substantially uniform pattern.
It does not stand out like the cool air outlet of the conventional displacement ventilation type air conditioner, so that the appearance on the architectural design is good.

As described above, according to the present invention, dirty air in a room can be steadily replaced with fresh cool air, and the appearance of the replacement ventilation type air conditioner in architectural design can be enhanced.

In the above structure, if the "air permeable panel" is made of a porous metal panel, the heat transfer characteristics of the air permeable panel can be improved. This can also function as a cool air radiating panel. In addition, by using such a porous metal panel, the moisture contained in the cool air can be released into the room, and the humidity in the room can be appropriately maintained. Further, a sound absorbing effect can be obtained by using a porous metal panel.

Specific examples of the above-mentioned "porous metal panel" include, for example, an aluminum sintered panel using sintered aluminum, which is a material having structurally fine voids, and an aluminum fiber compression-molded with a mesh. Aluminum fiber compression panel etc. can be adopted.

In the above construction, the indoor air-conditioning unit may be provided at one end of the box-shaped casing, and the circulation passage may be folded back at the other end of the box-shaped casing. If it is configured to be formed in two upper and lower stages, and the cool air from the indoor air conditioning unit is blown into the upper passage, the cool air can be efficiently circulated in the box-shaped casing by utilizing the descending property of the cool air,
Cool air having a substantially uniform temperature can be discharged into the room from substantially the entire surface of the permeable panel.

When such a circulation passage is provided, the internal pressure of the lower passage located on the downstream side may be lower than that of the upper passage, and the amount of cool air discharged from the permeable panel may be reduced. Therefore, when the circulation passage is formed so that the lower passage has a smaller cross-sectional area than the upper passage, a decrease in the internal pressure in the lower passage is suppressed, and the upper passage and the lower passage are formed. It is possible to make the amount of cold air discharged at each part of the permeable panel facing the passage uniform.

In this case, as described in claim 5, in each of the upper and lower passages, a partition plate for partitioning the passages is provided so that the cross-sectional area thereof gradually decreases toward the downstream side. This makes it possible to make the internal pressure substantially constant over the entire length of the upper and lower passages, thereby making it possible to further uniform the amount of cold air discharged at each portion of the permeable panel facing the upper and lower passages.

[0023]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described.

FIG. 1 is a front view showing a displacement ventilation type air conditioner 10 according to an embodiment of the present invention.
Are cross-sectional views taken along lines II-II, III-III, IV-IV, and VV. FIG. 6 is a front perspective view showing the displacement ventilation type air conditioner 10 with a front plate 20 described later being removed.

As shown in these figures, the replacement ventilation type air conditioner 10 is an air conditioner configured to replace the air in the room R of the room 2 with fresh cool air. And an indoor air conditioning unit 14 and a circulation passage 16 provided in the box-shaped casing 12.
And is provided.

The box-shaped casing 12 is formed in a waist wall shape along the inner surface of the wall 2b where the window 2a is located in the room 2. That is, the box-shaped casing 12 has a top plate 18 extending horizontally between the columns 2c on the right and left sides of the wall 2b over the entire width thereof and a plurality of (six) aluminum sintered panels arranged side by side. A front plate 20 extending vertically across the entire width between the two pillars 2c.
The front plate 20, the wall 2a, the pair of left and right columns 2c, and the floor 2d form a space of a horizontally long rectangular parallelepiped. A heat insulating material 22 is provided on each of the six surfaces constituting this space other than the front plate 20.

The indoor air-conditioning unit 14 is installed on the floor 2d at the right end in the box-shaped casing 12, and has an outlet 14a formed on the upper end surface thereof, and a suction port 14b formed on the lower front surface thereof. Is formed. The indoor air-conditioning unit 14 cools the air sucked from the inlet 14b to a predetermined temperature, and blows the cooled air (cool air) upward from the outlet 14a into the box-shaped casing 12. ing. The on / off of the indoor air-conditioning unit 14, the setting of the cooling temperature, the setting of the air volume (blowing strength), and the like can be performed by operating a remote controller.

The circulation passage 16 is a passage for circulating cool air blown out from the indoor air-conditioning unit 14 along the front plate 20 in the box-shaped casing 14 and is turned back at a left end portion in the box-shaped casing 14. An upper passage 16A and a lower passage 16B formed in two upper and lower stages;
The air-conditioning unit 14 includes an outlet chamber 16C formed in communication with the upper passage 16A around the outlet 14a, and a terminal chamber 16D formed below the outlet chamber 16C so as to communicate with the lower passage 16B. I have.

A circulation passage 16 is provided in the box-shaped casing 14.
Is provided. The partition plate 26 is formed in a difference shelf shape, and
A and the lower passage 16B are partitioned so as to have substantially the same vertical width, and the blowing chamber 16C and the terminal chamber 16D are partitioned so that the blowing chamber 16C has a narrower vertical width. Wall 2b
The half on the side is cut out in a rectangular shape so as to connect the upper passage 16A and the lower passage 16B.

A triangular partition plate 28 is provided in the upper passage 16A.
Is provided, so that the cross-sectional area of the upper passage 16A gradually decreases from the right end to the left end. On the other hand, a trapezoidal partition plate 30 is provided in the lower passage 16B.
The sectional area of 6B gradually decreases from the left end to the right end. At this time, the shapes of the partition plates 28 and 30 are set such that the cross-sectional area of the upper passage 16A at the left end of the partition plate 28 is substantially equal to the cross-sectional area of the lower passage 16B at the right end of the partition plate 30. ing.

An outside air introduction duct 24 is provided in the terminal chamber 16D in the box-shaped casing 12 so that the end thereof is opened rightward. The outside air introduction duct 24 is buried in the right pillar 2c from the middle and extends upward, and is piped so as to communicate the terminal chamber 16D with the external space. A boost fan 32 is interposed in the vicinity of the distal end of the outside air introduction duct 24. By driving the boost fan 32, outside air is supplied to the terminal chamber 16D. And thereby, in the indoor air conditioning unit 14,
Through the suction port 14b, the terminal chamber 16D
Air that already exists in the box-shaped casing 1
The outside air is introduced together with the cold air that has flown along the circulation passage 16 in the inside 2).

Of the two aluminum sintered panels on the right side of the aluminum sintered panels constituting the front panel 20, the portion facing the terminal chamber 16D on the rear surface is lined with a thin plate 34 such as a veneer plate. This prevents the outside air supplied to the terminal chamber 16D from passing through the aluminum sintered panel and being released into the room R.

Above the window 2a in the wall 2b, a room R
A vent 2e is formed to communicate the air with the outdoor space.

Next, the operation of the present embodiment will be described.

As shown in FIG. 6, the indoor air conditioning unit 14
Operates, the outside air introduced into the indoor air-conditioning unit 14 through the outside air introduction duct 24 is cooled by the indoor air-conditioning unit 14, and is discharged as fresh cold air from the blowing chamber 16.
It is blown out to C. The cool air thus blown out circulates in the box-shaped casing 12 along the circulation passage 16. That is, the cool air is supplied to the blowing chamber 16C.
Flows into the upper passage 16A, flows along the upper passage 16A, flows along the lower passage 16B, and flows into the terminal chamber 16D. Then, the cool air flowing into the terminal chamber 16D is introduced into the indoor air-conditioning unit 14 from the suction port 14b together with the outside air supplied from the indoor air-conditioning unit 14, is cooled, and is again blown out to the blow-out chamber 16C.

When the air pressure inside the box-shaped casing 12 exceeds a predetermined value while the cool air circulates along the circulation passage 16 in this way, the cool air is transferred to the inside of the box-shaped casing 12 and the room R
Is transmitted through the front plate 20 composed of a plurality of aluminum sintered panels and discharged into the room R at a speed corresponding to a pressure difference between the pressure and the pressure. Since the front plate 20 is provided over the entire width of the waist wall, the cool air is discharged into the room at a very low discharge speed over a wide area except for the portion lined with the thin plate 34.

Since the cool air discharged through the front panel 20 and discharged into the room R is heavier than the air in the room R, it forms a layer near the floor surface and acts to gradually push the air in the room R upward. At this time, when there are heating elements such as humans and OA equipment in the room, the action of raising the air in the room is promoted by these. By discharging the air thus pushed up from the upper portion of the room R to the outside of the room through the ventilation port 2e, the dirty air in the room R can always be replaced with fresh cool air.

At this time, since the cool air is discharged from the front plate 20 at a very low discharge speed (for example, about several cm / s), there is no fear that the air in the room R is agitated. From a large area,
The replacement ventilation of the room R can be performed efficiently.

Further, in the replacement ventilation type air conditioner 10 according to the present embodiment, since the indoor air conditioning unit 14 is provided in the box-shaped casing 12, the waist wall-shaped box-shaped casing 12 can be seen from the outside. There is no discomfort in architectural design. Moreover, the front plate 20 of the box-shaped casing 12
Is composed of sintered aluminum panels, the entire surface of which has a design with a substantially uniform pattern, so that it does not stand out like the cool air outlet of a conventional displacement ventilation air conditioner, Will look good.

As described above, according to the present embodiment, dirty air in the room can be steadily replaced with fresh cool air.
In addition, the appearance of the replacement ventilation type air conditioner in architectural design can be enhanced.

Moreover, in this embodiment, the front plate 2
Since the reference numeral 0 is made of an aluminum sintered panel, its heat transfer characteristics can be enhanced, and this can also function as a cool air radiating panel. In addition, by using the aluminum sintered panel, the moisture contained in the cool air can be released into the room R, whereby the humidity in the room R can be appropriately maintained. Further, a sound absorbing effect can be obtained by using an aluminum sintered panel.

In this embodiment, the indoor air-conditioning unit 14 is provided at the right end of the box-shaped casing 12 and the circulation passage 16 is provided in the box-shaped casing 1.
2 is formed in two stages, upper and lower, so as to be folded back at the left end of the interior air conditioning unit 14.
The cool air can be efficiently circulated in the box-shaped casing 12 by utilizing the descending property of the cool air, and is substantially uniform from the front plate 20 over substantially the entire length of the circulation passage 16. Cooling air at room temperature
Can be released.

Further, the circulation passage 16 is connected to the upper passage 1
The lower passage 16B is formed so as to have a smaller cross-sectional area than that of the lower passage 6A, and the cross-sectional area of each of the upper and lower passages 16A and 16B is gradually reduced toward the downstream side. Since the partition plates 28 and 30 for partitioning the passages 16A and 16B are provided, it is possible to make the internal pressure substantially constant over the entire length of the upper and lower passages 16A and 16B.
It is possible to make the amount of the cool air discharged at each part of the front plate 20 facing A and 16B substantially uniform.

In the present embodiment, the air in the room R is discharged to the outside through the vent 2e formed in the upper part of the wall 2b. However, the vent is formed in the ceiling to exhaust the air. It may be performed. Since the temperature of the air discharged outside the room is lower than that of the outside air, the outside air introduction duct 24
, The outside air introduced into the indoor air conditioning unit 14 may be configured to exchange heat with the air discharged outside the room,
By doing so, the load on the indoor air conditioning unit 14 can be reduced.

Further, in this embodiment, the case where the indoor air conditioning unit 14 is installed at the right end in the box-shaped casing 12 has been described.
Even in the case where 4 is installed at the left end in the box-shaped casing 12, the same operation and effect as in the present embodiment can be naturally obtained. Furthermore, the indoor air conditioning unit 1
4 may be installed in the central part in the box-shaped casing 12, and the circulation passage 16 may be provided on each of the left and right sides. By doing so, the length of each circulation passage 16 can be shortened and the pressure loss can be reduced.

In the present embodiment, only the function of cooling the outside air of the indoor air-conditioning unit 14 has been described. However, it is needless to say that the indoor air-conditioning unit 14 may also have the function of heating the outside air. When the outside air heating function is exhibited, the displacement ventilation type air conditioner 10 can be used as a hot air generator. At that time, the warm air is emitted from the front panel 20 at an extremely low emission speed, so that a comfortable indoor environment can be realized.

[Brief description of the drawings]

FIG. 1 is a front view showing a displacement ventilation type air conditioner according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along the line II-II of FIG.

FIG. 3 is a sectional view taken along line III-III of FIG. 1;

FIG. 4 is a sectional view taken along line IV-IV of FIG.

FIG. 5 is a sectional view taken along line VV of FIG. 1;

FIG. 6 is a front perspective view showing the replacement ventilation type air conditioner with a front plate removed.

FIG. 7 is a view similar to FIG. 2, showing a conventional example.

[Explanation of symbols]

 2 room 2a window 2b wall 2c pillar 2d floor 2e vent 10 replacement ventilation air conditioner 12 box-shaped casing 14 indoor air conditioning unit 14a outlet 16 circulation passage 16A upper passage 16B lower passage 16C outlet chamber 16D terminal chamber 18 top plate 20 Front plate 22 Insulation material 24 Outside air introduction duct 26, 28, 30 Partition plate 32 Boost fan 34 Thin plate R Room

Claims (5)

[Claims] 1. A replacement ventilation type air conditioner configured to replace indoor air with fresh cool air, wherein a waist wall-shaped box-shaped front panel is formed near a wall surface of the room by a permeable panel. A casing is provided, and inside the box-shaped casing, an outside air introduction type indoor air-conditioning unit and a circulation passage for circulating cool air blown out from the indoor air-conditioning unit within the box-shaped casing are provided. A radiation type air conditioner characterized by the following. 2. The radiant air conditioner according to claim 1, wherein the air permeable panel is formed of a porous metal panel. 3. The indoor air-conditioning unit is provided at one end of the box-shaped casing, and the circulation passage is folded back at the other end of the box-shaped casing. The radiant air according to claim 1, further comprising an upper passage and a lower passage formed, wherein the cool air from the indoor air conditioning unit is blown out to the upper passage. Harmony equipment. 4. The radiant air conditioner according to claim 3, wherein the circulation passage is formed such that the lower passage has a smaller sectional area than the upper passage. 5. A partition plate for partitioning the passage such that the cross-sectional area of the passage gradually decreases toward the downstream side in each of the upper and lower passages. Item 6. A radiation type air conditioner according to Item 4.