JP3510153B2 - Air conditioning chamber - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioning chamber for distributing air blown from an air conditioner to a plurality of air conditioning ducts.

[0002]

2. Description of the Related Art First, as a background of the present invention, a general duct distribution type air conditioning system will be described. At least two air blown from one air conditioner are connected to the air blow side of the air conditioner. It is known that more than one duct leads to the air-conditioned space. In such an air conditioning system, the amount of air blown out from each duct is preferably the same in each duct, and if the amount of air blown out from each duct is the same, the temperature distribution inside the air-conditioned space will be uniform. You can get comfort.

Here, the amount of air blown out from each of the ducts is the flow of air resulting from the distance from the air blowout port of the air conditioner to the air blowout port of the duct (duct length) and its handling (bending). It is determined by the pressure loss inside the duct due to resistance. However, since the pressure loss of each of the ducts varies depending on the difference in length, curvature, etc., it is necessary to provide an air resistance portion before or after each duct to balance the pressure loss of the duct.

Further, by providing a chamber having a certain volume at the outlet of the air conditioner or the branch portion of the duct, variations in the amount of air blown to each duct are reduced. However, since the equipment such as the air conditioner and the chamber is housed in the underground or the ceiling of the air-conditioned space, the volume of the chamber is limited, and the dynamic pressure cannot be completely changed to the static pressure. It was not possible to make the distance from the suction port of the chamber to the blowout port (duct branch part) to each duct constant. Therefore, the static pressure differs depending on the opening position of the outlet of the chamber, and as a result, the amount of blown air varies. To correct it,
As described above, the amount of air blown to each duct is balanced by adding the resistance value of the air resistance portion provided before and after or in the middle of each duct to the opening position of the chamber blowout port. Therefore, when constructing the air-conditioning system, it is necessary to consider the pressure loss of the duct and also consider the opening position of the chamber outlet, resulting in a lot of time and skill required for the construction. It was.

Next, a typical design example of an air conditioning chamber applied to a conventional duct distribution type air conditioning system will be described. FIG. 15 is a side view showing an air conditioning chamber according to the first design example of the related art together with a blast pressure distribution. In the figure, 1 is an air conditioner equipped with a blower, 2 is an air conditioning chamber connected to the blow-out side of the air conditioner 1, 2 a is a chamber body of the chamber 2, and this chamber body 2
In a, a plurality of outlets 2-1, 2-2, 2-3 are provided at appropriate intervals from the upstream side to the downstream side along the flow direction of the air blown out from the air conditioner 2. A duct (not shown) for blowing air is connected to the ports 2-1, 2-2, 2-3. Here, the internal cross-sectional area of the chamber 2 is the same throughout the chamber body 2a along the flow direction of the air blown out from the air conditioner 1.

Next, the operation will be described. The air blown from the air conditioner 1 into the chamber 2 is distributed to the ducts connected to the outlets 2-1, 2-2, 2-3 of the chamber 2 and is blown to the air-conditioned space. in this case,
Since the internal cross-sectional area of the chamber 2 is the same in the entire region of the chamber body 2a along the flow direction of the air blown out from the air conditioner, each of the blowout ports 2-1, 2-2, 2
As the amount of air blown from -3 increases, the flow velocity (dynamic pressure) in the chamber 2 gradually decreases toward the downstream side, and as a result, the static pressure rises.
Here, the air volume of the ducts connected to each of the blowout ports 2-1, 2-2, 2-3 is determined by the difference between the static pressure in the chamber 2 and the duct blowout static pressure and the pressure inside each duct. Since it depends on the loss, each of the outlets 2-
When ducts having the same pressure loss are connected to each of 1, 2, 2 and 2-3, it is gradually downstream as compared with the outlet 2-1 on the upstream side with respect to the flow direction (air blowing direction) from the air conditioner 1. At the outlets 2-2 and 2-3 on the side, the air volume gradually increases.

FIG. 16 is a side view showing the air conditioning chamber according to the second conventional design example together with the blast pressure distribution. In the figure, 2b is a stepped portion 2c on the downstream side of the chamber body 2a.
2-1 is a throttle body portion having a small cross-sectional area, 2-1 is an outlet for connecting an upstream duct provided in the chamber body 2a, and 2-2 is a downstream side provided in the body 2b for squeezing It is an outlet for connecting a duct. That is, in the air conditioning chamber 2 according to the second design example, the stepped throttle body portion is provided on the downstream side of the chamber body portion 2a in order to reduce the cross-sectional area on the downstream side in the blowing direction (flow direction) from the air conditioner. By forming 2b, each of the blowout ports 2-1 and
It is intended to reduce variations in static pressure in 2-2.

[0008]

Since the conventional air conditioning chamber is constructed as described above, the first air conditioning chamber shown in FIG.
In the case of the design example, since the internal cross-sectional area of the chamber 2 is the same in the entire area of the chamber body 2a along the flow direction of the air blown out from the air conditioner, each outlet 2-1 of the chamber body 2a is 2-1. When 2-3 ducts with the same pressure loss are connected, the air volume becomes larger toward the downstream side in the chamber body 2a and distributed to each of the ducts connected to each of the outlets 2-1 to 2-3. There is a problem in that the blown air condition (blast pressure or blown air volume) varies greatly from duct to duct, and the amount of air blown from each duct to the air-conditioned space varies, resulting in an uneven temperature distribution inside the air-conditioned space. It was
Further, in the case of the second design example shown in FIG. 16, the chamber body 2
The pressure loss increases due to the stepped portion 2c with the body portion 2b to be narrowed in a, and the interval (distance) between the adjacent outlets 2-1 and 2-2 along the flow direction of the blown air from the blower becomes large. Therefore, there is a problem that the chamber itself becomes huge.

The present invention has been made in order to solve the above-mentioned problems, and a plurality of ducts can be brought into a constant air blowing state (air blowing pressure or air blowing amount), and each duct can be moved to the air-conditioned space. It is an object of the present invention to provide an air conditioning chamber that can achieve uniform air flow rate and size reduction of the entire chamber.

[0010]

Furthermore, this invention anticipates the pressure loss of a plurality of ducts inside the blowing state from the duct into a plurality of air conditioning target space can be become different, thereby, sending to each space to be air-conditioned An object is to obtain an air-conditioning chamber that can make the air volume uniform.

Further, according to the present invention, the air flow rate of each duct is adjusted.
Can be performed easily and the chamber body can be
It can be modeled, its handling is easy, and duct distribution type air conditioning
It is an object of the present invention to obtain an air conditioning chamber that can realize downsizing of the entire system .

[0013]

The air-conditioning chamber according to the present invention is an air-conditioning chamber for connecting conditioned air to each duct in order to distribute conditioned air blown out from the air-conditioner to a plurality of ducts. , The cross-sectional area inside the chamber
Continuous from upstream to downstream along the direction of air blow from the air conditioner
Has a chamber body whose downstream end is blocked by
The position of this chamber body is different along the air flow direction
At least the outlet on the upstream side and the outlet on the downstream side
Provide and connect the ducts to these outlets
It is configured in .

The air-conditioning chamber according to the present invention is provided for each duct.
Each of the above-mentioned ducts so that the
And a blower state setting means for setting the blower state of the fan .

The blower state setting means of the air-conditioning chamber according to the present invention connects each outlet and duct of the chamber body.
The duct collar to be connected and the interior of this duct collar
And a damper for adjusting the flow rate of the blown air .

The air conditioning chamber according to the present invention is a chamber
A duct collar is detachably attached to each outlet of the body
It is attached .

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiment 1. 1 (a) is a plan view showing an air conditioning chamber according to Embodiment 1 of the present invention, FIG. 1 (b) is a right side view of FIG. 1 (a), and FIG. 1 (c) is of FIG. 1 (a). FIG. 2 is a bottom view, in which 20 is an air conditioning chamber connected to the air outlet side of an air conditioner (not shown in FIG. 1) equipped with a blower, and 20 a is the suction side opening end of the chamber 20, This suction side opening end 2
0a is connected to the outlet side of the air conditioner. 20b is a closed end of the chamber 20 opposite to the suction side opening end 20a, 20-1 is an outlet provided on the upstream side (suction side opening end 20 side) in the body of the chamber 20, and 20-2 is Outlet ports provided on the downstream side (closed end 20b side) of the body of the chamber 20, 20-3 are the upstream and downstream outlets 20-1 and 20-2 of the body of the chamber 20. Is a blowout port of an intermediate portion provided between the ducts and the ducts (see FIG. 1).
(Not shown) is connected.

Reference numeral 21 denotes an air blowing state setting means provided in the chamber 20, and the air blowing state setting means 21 causes each duct connected to each of the air outlets 20-1 to 20-3 of the chamber 20 to have a constant air blowing state. (Blower pressure and blow rate) can be set. In the first embodiment,
The inner cross-sectional area of the chamber 20 is arranged upstream of the chamber 20 along the flow direction of the air blown out from the air conditioner so that the static pressure is constant throughout the chamber 20.
The air blowing state setting means 21 is formed by continuously decreasing the suction side opening end 20a) toward the downstream side (closed end 20b of the chamber 20).

Further, in the first embodiment, the chamber 20 is formed in a quadrangular shape in cross section, and at least an upstream blowout port 20-1 is formed at an appropriate interval with respect to the chamber wall surface along the air flow direction. Downstream outlet 20
-2, and further, as shown in FIG. 1C, as necessary, between the upstream outlet 20-1 and the downstream outlet 20-2, an intermediate outlet 20. -3
The chamber is configured so that it can be provided.

Next, the operation will be described. FIG. 1D is a pressure distribution diagram showing the relationship between the dynamic pressure and the static pressure in the chamber 20 according to the first embodiment of the present invention. In a state where conditioned air is blown from the air conditioner into the chamber 20 and the conditioned air is distributed and delivered from the outlets 20-1 to 20-3 of the chamber 20 to the ducts, the flow velocity of the blown air in the chamber 20. (Dynamic pressure) decreases from the upstream side of the chamber 20 toward the downstream side in a straight line without variation as shown in FIG. 1D, and as a result, the static pressure in the chamber 20 becomes constant. This means that each outlet 20 of the chamber 20
As blower state setting means 21 capable of setting each duct connected to -1 to 20-3 to a constant blower state, the internal cross-sectional area of the chamber 20 is set to the upstream side along the flow direction of the air blown out from the air conditioner. To the downstream side. Therefore, the amount of air blown from each duct to the air-conditioned space is made uniform, and the temperature distribution inside the air-conditioned space is made uniform.

According to the first embodiment described above, the ducts connected to the outlets 20-1 to 20-3 of the chamber 20 serve as the blower state setting means 21 capable of setting a constant blower state. The following effects are obtained by continuously reducing the internal cross-sectional area of the chamber 20 from the upstream side to the downstream side along the flow direction of the air blown out from the air conditioner. (1) Re-acquisition of static pressure due to pressure loss and air flow reduction inherent to the chamber is apparently zero, and therefore, depending on the opening position of each of the outlets 20-1 to 20-3 of the chamber 20, the static pressure is re-acquired to each duct. There is no need to set the air flow rate, and as a result, when constructing a duct distribution type air conditioning system equipped with the chamber 20, it is possible to adjust the air flow rate of each duct simply by considering the pressure loss due to the length and bending of the duct. The workability is improved. (2) Since the chamber 20 does not have a stepped throttle portion or the like, the air outlets 20-1 and 20-2 and 20-1 and 20 adjacent to each other along the flow direction of the air blown from the blower are provided.
-2 and 20-3 can be shortened, and the size of the chamber 20 itself can be reduced as compared with a chamber having a discontinuous change portion of an internal cross-sectional area such as a stepped narrowed portion, etc. Storability in a narrow space is also improved. (4) Since the chamber 20 does not have a discontinuous change portion of the internal cross-sectional area such as a stepped portion, fluid separation or vortex does not occur in the chamber 20, and pressure loss and noise can be reduced.

Embodiment 2. 2 is a conceptual diagram of a duct distribution type air conditioning system provided with an air conditioning chamber according to Embodiment 2 of the present invention, and FIG. 3 is a perspective view showing a duct collar in FIG. Description will be given with reference numerals. In FIG. 2, reference numeral 11 denotes an air conditioner equipped with a blower 11 a, and the chamber 2 is provided on the blow-out side of the air conditioner 11.
The suction side opening end 20a of 0 is connected. The chamber 20 has at least two or more outlets 20-1 and 20-2 provided at appropriate intervals in the flow direction of the air blown out from the air conditioner 11, and other configurations of the chamber 20. Since it is the same as the case of the first embodiment, the description thereof will be omitted.

Reference numeral 30 denotes a duct collar which is a separate piece from the chamber 20, and the duct collar 30 is detachably attached to each of the outlets 20-1 and 20-2 of the chamber 20. 41 and 42 are the duct collar 3
0 is a duct connected to each of the outlets 20-1 and 20-2. That is, the duct collar 30 connects the outlets 20-1 and 20-2 of the chamber 20 and the ducts 41 and 42, and has a function of adjusting the blown air flow rate of the ducts 41 and 42.

Therefore, a specific example of the structure of the duct collar 30 will be described below with reference to FIG. In FIG.
Reference numeral 31 denotes a cylindrical collar portion that serves as the main body of the duct collar 30, 31a denotes a flange portion provided at one end of the collar portion 31, and this flange portion 31a is provided at the outlets 20-1 and 20-2 of the chamber 20. It is fastened and fixed to the opening edge by screwing means. A damper 32 for adjusting the air flow rate is rotatably provided in the collar portion 31 via a rotation shaft 33, and at least one end side of the rotation shaft 33 extends outside the collar portion 31. Then, a nut 34 for positioning a damper is screwed into an outwardly extending portion of the rotary shaft 33, and the damper 32 is tightened and fixed to the collar portion 31 at the air flow rate adjusting position by the nut 34. Has become.

Further, a damper operating portion 33a is provided on the outwardly extending portion of the rotary shaft 33, and the damper operating portion 33a is provided.
Is formed by bending the tip end side of the outwardly extending portion of the rotary shaft 33 in a direction parallel to the damper 32 at an angle of approximately 90 °. Therefore, the damper operating portion 33a and the damper 32 are oriented in the same direction, so that the orientation of the damper 32 can be known from the extending direction of the damper operating portion 33a without looking at the damper 32 inside the duct collar 30. Has become.

Next, the operation will be described. In adjusting the air volume, first, the nut 34 of the damper rotating shaft 33 is loosened, and then the damper operating portion 33a is operated in the air volume adjusting direction to allow the damper 32 to operate the duct collar 30.
Of the ducts 41 and 42 so that the air volumes of the ducts 41 and 42 are the same, and the nut 34 is retightened at the air volume adjustment position, whereby the damper 32 is fixedly held at the air volume adjustment position. It

According to the second embodiment described above, as in the case of the first embodiment, the duct 41, 42 can be set in a constant air blowing state as the air blowing state setting means 21 from the air conditioner. In addition to continuously reducing the internal cross-sectional area of the chamber 20 from the upstream side to the downstream side along the flow direction of the blown air, the duct collar 41 having the air flow rate adjusting function of each of the ducts 41 and 42 allows 20 blowout ports 20-1 and 20-2 and the duct 4
The following effects are obtained by detachably connecting 1 and 42. (1) Re-acquisition of static pressure due to pressure loss and air flow reduction inherent to the chamber is apparently zero, and therefore, depending on the opening position of each of the outlets 20-1 to 20-3 of the chamber 20, the static pressure is re-acquired to each duct. There is no need to set the blowing air volume.
As a result, at the time of construction of the duct distribution type air conditioning system including the chamber 20, it is sufficient to adjust the opening degree of the duct collar 30 by the damper 32 in consideration of the pressure loss caused by the length and bending of the ducts 41 and 42. Duct 41,
The air volume can be easily adjusted so that the air volume of 42 is the same, and the workability is improved. (2) Since the chamber 20 does not have the stepped throttle portion or the like, the distance between the adjacent air outlets 20-1 and 20-2 along the flow direction of the air blown from the blower can be shortened,
The chamber 20 itself can be downsized as compared with a chamber having a discontinuous change portion of the internal cross-sectional area such as a stepped throttle portion, etc., and the storability in a narrow space of a building such as a ceiling space is also improved. (3) Since the chamber 20 does not have a discontinuous change portion of the internal cross-sectional area such as a step portion, fluid separation or vortex does not occur in the chamber 20, and pressure loss and noise can be reduced. (4) Since the duct collar 30 is a separate piece from the chamber 20, the main body of the chamber 2 can be downsized and the handling becomes easy. (5) Since the duct collar 30 has the damper 32 as the air volume adjusting means of the ducts 41 and 42,
The duct distribution type air conditioning system can be downsized. (6) Since the damper operating portion 33a is oriented in the same direction as the damper 32, the damper 3 inside the duct collar 30
The orientation of the damper operating portion 33a can be known as the orientation of the damper 32 without looking at 2. Therefore, the opening degree of the duct collar 30 can be easily adjusted by the damper 32, and the adjustment operability is improved. To do.

Embodiment 3. 4 (a) is a plan view of an air conditioning chamber according to Embodiment 3 of the present invention, and FIG. 4 (b).
4A is a right side view of FIG. 4A, and FIG. 4C is a bottom view of FIG. 4A. The same parts as those in FIGS. In the third embodiment, the duct collar 30 according to the second embodiment is integrally formed with the chamber 20. That is, the collar portion 31 of the duct collar 30 is welded to the chamber 20, and
The collar portion 31 is simultaneously formed by drawing the 0 outlets 20-1 and 20-2. The duct collar 30 has a damper 32, a rotating shaft 33, and a damper positioning nut 34 shown in FIG.

According to the third embodiment, the same effect as in the second embodiment can be obtained, and the flange portion 31a of the duct collar 30 shown in FIG. There is an effect that can be saved.
In addition, a duct collar 30 formed integrally with the chamber 20
Has the effect of improving the reliability because the strength of the collar portion 31 increases.

Fourth Embodiment Although the chamber 20 has a quadrangular cross-sectional shape in the first embodiment, the chamber 20 may have a quadrangular cross-sectional shape such as a triangular shape or a pentagonal shape. When the chamber 20 has a polygonal cross section, the chamber wall surface becomes a flat surface, so that there is an effect that the duct can be easily connected. Further, the chamber shape can be adapted to the storage location of the duct distribution type air conditioning system.

Embodiment 5. FIG. 5 (a) is a plan view of an air conditioning chamber according to Embodiment 5 of the present invention, and FIG. 5 (b).
FIG. 5 is a left side view of FIG. In the fifth embodiment, a tapered cylindrical member having a circular cross section is used as the chamber 20, and the large-diameter side open end is connected to the blow-out side of the air conditioner as the suction-side open end 20a, and the small-diameter end is It is the closed end 20b. According to the fifth embodiment, since the chamber 20 is formed by the tapered cylindrical member, the blowout ports 20-1 to 20 of the chamber 20 are formed.
There is an effect that the blowing direction of -3 can be freely set. The chamber 20 according to the fifth embodiment may be made of a tapered cylindrical member having an elliptical cross section, and the same effect can be obtained in this case as well.

Sixth Embodiment 6 is a cross-sectional view showing an air conditioning chamber according to Embodiment 6 of the present invention. In FIG. 6, reference numeral 22 denotes a heat insulating material that covers the entire inner wall of the chamber 20. As described above, the chamber 20 whose inner wall is entirely covered with the heat insulating material 22 has the same structure as the chamber structure shown in FIG. 1 and FIG. 2 or FIG. -3. Therefore, each of the outlets 20-1 to 20-3 of the chamber 20 is
Is in a state of being blocked by the heat insulating material 22, but remains in the same state before the installation of the chamber 20, and after the installation of the chamber 20, the blowout port 20
-1 to 20-3 are opened.

According to the sixth embodiment, the chamber 20
The following effects are obtained by covering the entire inner wall of the above with the heat insulating material 22. (1) The dew condensation on the surface of the chamber 20 can be prevented by the heat insulating material 22, which can contribute to the improvement of reliability. (2) Before installation of the chamber 20, the blow-out ports 20-1 to 20-3 shown in FIGS.
In the heat insulating material 22, only the necessary outlets of the outlets 20-1 to 20-3 are opened to the heat insulating material 22 after the installation of the chamber 20 is completed. Can be left closed by the heat insulating material 22, and therefore, the outlet 20
Among the -1 to 20-3, it is not necessary to close the unused blow-out port with a blocking member such as a cap, so that the material can be saved and the cost can be reduced, and the workability can be improved. (3) Since the heat insulating material 22 covers the inner wall surface of the chamber 20, the opening position of the heat insulating material 22 can be easily visually recognized from the outside through the outlets 20-1 to 20-3.
Therefore, the heat insulating material at the blowout port to be used can be easily cut and opened.

Embodiment 7. 7 is a sectional view showing an air conditioning chamber according to Embodiment 7 of the present invention. In FIG. 7, 23 is a heat insulating material that covers the entire outer wall of the chamber 20. That is, in the sixth embodiment, the entire inner wall of the chamber 20 is covered with the heat insulating material 22, but in the seventh embodiment, contrary to the sixth embodiment, the entire outer wall of the chamber 20 is covered with the heat insulating material 23. The chamber 20 has the same structure as the chamber structure shown in FIG. 1 and FIG. 2 or FIG. 5, as in the case of the sixth embodiment. 1-2
It has 0-3.

According to the seventh embodiment, the chamber 20
The following effects can be obtained by covering the entire outer wall of the above with the heat insulating material 23. (1) Condensation on the surface of the chamber 20 can be prevented by the heat insulating material 23, which contributes to improvement in reliability. (2) Before installation of the chamber 20, the blow-out ports 20-1 to 20-3 shown in FIGS.
In the heat insulating material 23, only the required outlets of the outlets 20-1 to 20-3 are opened to the heat insulating material 23 after the installation of the chamber 20 is completed. Can be left closed by the heat insulating material 22, and therefore, the outlet 20
Among the -1 to 20-3, it is not necessary to close the unused blow-out port with a blocking member such as a cap, so that the material can be saved and the cost can be reduced, and the workability can be improved. (3) Since the heat insulating material 23 covers the entire outer wall of the chamber 20 and closes the air outlets 20-1 to 20-3 from the outside, the air outlet 2 is formed on the surface of the heat insulating material 23.
By providing an opening position display mark at a site where 0-1 to 20-3 are opened by printing or the like, the heat insulating material at the blowout site to be used can be easily cut and opened.

In the sixth and seventh embodiments, the chamber 20 and the heat insulating materials 22 and 23 are made of materials suitable for their respective applications.
It is preferable that 0 is a galvanized steel sheet, and the heat insulating materials 22 and 23 are made of expanded polystyrene.

Embodiment 8. 8 (a) is a plan view showing an air conditioning chamber according to Embodiment 8 of the present invention, and FIG.
1B is a right side view of FIG. 1A, and FIG. 1C is FIG.
It is a bottom view of (a). In the eighth embodiment, at least one or more outlets 20-1 and 20-1a and 20-2 and 20 are provided in the chamber 20 more than the number of duct connections.
-2a is provided, and those outlets 20-1 and 20-1 are provided.
a and 20-2, 20-2a are divided into several groups along the flow direction of the air blown out from the air conditioner, and one duct is connected to one outlet for each group in an equal distribution connection. The outlet not connected to the duct is closed with a removable member such as a cap. For example, in FIG. 8, the outlets 20-1 and 2 having the same distance from the suction-side opening end 20a of the chamber 20 are provided.
0-1a as one group and other outlets 20-
When 2 and 20-2a are set as other groups and one duct is connected to each of the outlets 20-1 and 20-2 for each group, the other outlets 20-1a in each group are connected to each other. 20-2a is not connected to the duct,
The outlets 20-1a and 20-2a are closed by a removable closing member. According to the eighth embodiment, there is an effect that the degree of freedom of the duct connection position is increased and the workability can be improved.

Ninth Embodiment FIG. 9 is a conceptual diagram of a duct distribution type air conditioning system including an air conditioning chamber according to a ninth embodiment of the present invention. In the figure, reference numeral 51 designates an open end 20 of the air conditioner 11 and a suction side of the chamber 20.
A flexible intermediate duct for connecting with a and 52 are flexible suction ducts connected to the suction side of the air conditioner 11. In the ninth embodiment, when a plurality of chambers 20 are connected in series to one air conditioner 11, the chambers 20 are connected to each other by the duct 51, and the middle of the duct 51 is connected. Alternatively, a balance damper may be provided to adjust the flow rate between the chambers 20. Further, since the chamber 20 has the same shape and configuration as that shown in FIG. 1, the same parts are designated by the same reference numerals and the duplicate description thereof is omitted.

According to the ninth embodiment, since the air conditioner 11 and the chamber 20 are connected by the flexible duct 51, each of the air conditioner 11 and the chamber 20 can be arranged in an optimum installation space, and each unit can be arranged. There is an effect that the performance of can be improved. In addition, each unit can be separately arranged, and therefore, there is no need for a unified volume as a space for accommodating the entire device, and there is an effect that the storability in a narrow space such as the ceiling is improved.

Embodiment 10. FIG. 10 is a conceptual diagram of a duct distribution type air conditioning system including an air conditioning chamber according to a tenth embodiment of the present invention. In the tenth embodiment, the chamber 2 connected to the blower side of the blower 11a
At the closed end 20b of 0, as a blower state setting means, a predetermined outlet port 20-1 in the same direction as the flow direction of the air blown from the air conditioner 11, and a predetermined direction with respect to the flow direction of the air blown from the air conditioner 11. The outlet 20-2 provided with the angle θ is provided, and the outlet 20-1 in the same direction as the flow direction is, for example, for the first floor of a two-story house, the outlet 20- provided with the angle θ. 2 is for the second floor, and a duct is connected to each of the outlets 20-1 and 20-2.

Next, the operation will be described. In a state where the air conditioner 11 and the chamber 20 are arranged in the attic space of a two-story house, for example, the air blown into the chamber 20 from the air conditioner 11 opens in the same direction as the flow direction of the air from the air conditioner 11. First floor outlet 20-1
And the air outlet 20-2 for the second floor, which is opened at an angle θ with respect to the flow direction of the air, are distributed to the ducts of the respective systems, so the air outlet 20-1 for the first floor is provided.
And a blower outlet 20-2 for the second floor causes a difference in blowing pressure.

The average effective pipe length when the air conditioner 11 and the chamber 20 are arranged in the attic space of a two-story house is 10 m for the second floor duct and 30 m for the first floor duct. Pressure loss per 1m is 1Pa / m
Then, the pressure loss of the duct for the second floor is 10 Pa, the pressure loss of the duct for the first floor is 30 Pa, and the pressure loss difference is 20 Pa. This pressure loss difference can be compensated for by the outlet 20-1 for the first floor and the outlet 20-2 for the second floor.

That is, as described above, the outlet 20-1 for the first floor is opened in the flow direction of the air from the air conditioner 11, and the outlet 20-2 for the second floor is arranged in the flow direction. Since the air outlet is opened at an angle θ, the air blower 20-1 for the first floor and the air outlet 20-2 for the second floor have a ventilation amount to the air conditioning target space on the first floor and a second floor air conditioning from ducts of those systems. A blow pressure difference can be generated in each duct so that the amount of blow to the target space becomes uniform.

Therefore, according to the tenth embodiment, 1
Due to the difference in length between the duct for the first floor and the duct for the second floor and the difference in pressure loss, the air flow rate does not become uneven between the air conditioning target space for the first floor and the air conditioning target space for the second floor. A uniform and comfortable temperature distribution can be obtained in those air-conditioned spaces.

Eleventh Embodiment FIG. 11 is a conceptual diagram of a duct distribution type air conditioning system including an air conditioning chamber according to an eleventh embodiment of the present invention. In the eleventh embodiment, the chamber 2 connected to the blower side of the blower 11a
Blow-out port 20-1 opened at the closed end 20b of 0 in the same direction as the flow direction of the air blown out from the air conditioner 11.
And 20-2, and the air outlet 20-1 is provided in the chamber 20 as a blower state setting means.
And 20-2 are provided with the current plate 24. This straightening vane 24 has the one outlet 20-
Compared to the air pressure and the air flow rate for 1, the other outlet 2
The air pressure and the air flow rate for 0-2 are reduced.

Therefore, according to the eleventh embodiment, for example, in a state where the air conditioner 11 and the chamber 20 are arranged in the attic space of a two-story house, the blowout pressure and the blown air amount of the other blowout port 20 are increased. -1 is for the first floor, and the one blowout port 20-2 in which the blast pressure and the amount of blast are reduced is for the second floor, so that the air distribution to the ducts of those systems can be optimally performed, Since the pressure loss of the chamber 20 itself can be reduced, the air conditioner 1
There is an effect that the blower 11a of No. 1 can be operated with low power.

Twelfth Embodiment 12 is a conceptual diagram of a duct distribution type air conditioning system including an air conditioning chamber according to a twelfth embodiment of the present invention. In the twelfth embodiment, the chamber 2 connected to the blower side of the blower 11a
Blow-out port 20-1 opened at the closed end 20b of 0 in the same direction as the flow direction of the air blown out from the air conditioner 11.
And 20-2 are provided, and these outlets 20-1 and 2 are provided.
Dampers 25 and 26 for adjusting the flow rate are provided inside each of 0-2 as a blower state setting means.

According to the twelfth embodiment, for example, one outlet 20-1 is for the first floor and the damper 25 inside is fully opened, and the other outlet 20-2 is for the second floor and the inside thereof is inside. By setting the damper 26 to the throttle opening, the same effect as in the case of the twelfth embodiment can be obtained, and in addition, the blowout ports 20-1 and 20-2 are provided.
The air flow rate of the duct connected to the damper 25, 2
6 has the effect that it can be easily adjusted.

Thirteenth Embodiment 13 is a conceptual diagram of a duct distribution type air conditioning system provided with an air conditioning chamber according to a thirteenth embodiment of the present invention. In the thirteenth embodiment, the chamber 2 connected to the blower side of the blower 11a
Blow-out port 20-1 opened at the closed end 20b of 0 in the same direction as the flow direction of the air blown out from the air conditioner 11.
And 20-2, and a diaphragm plate 27 for restricting the amount of air blown to the one air outlet 20-2 is provided inside the chamber 20 as air blow state setting means.

According to the thirteenth embodiment, the diaphragm plate 27
Since the blowing pressure and the blowing amount to the blowout port 20-2 can be reduced by using the blowout port 20-1, the blowout port 20-1 having the diaphragm plate 27 is for the first floor, and other blowouts not having the diaphragm plate 27 are provided. The opening 20-2 is for the second floor, and a duct is connected to each of the openings, so that the eleventh embodiment is described.
The same effect as in the case of can be obtained.

Fourteenth Embodiment FIG. 14 is a conceptual diagram of a duct distribution type air conditioning system including an air conditioning chamber according to a fourteenth embodiment of the present invention. In the fourteenth embodiment, the chamber 2 connected to the blower side of the blower 11a
Blow-out port 20-1 opened at the closed end 20b of 0 in the same direction as the flow direction of the air blown out from the air conditioner 11.
And 20-2 are provided, and the opening diameter of the one outlet 20-1 is made large and the opening diameter of the other outlet 20-2 is made small as the blowing state setting means.

According to the fourteenth embodiment, the chamber 2
No. 0 outlets 20-1 and 20-2 have different opening diameters.
0-1 is for the first floor and has a small opening 20-
By connecting 2 to the second floor and connecting the ducts to each, the same effect as in the case of the eleventh embodiment can be obtained.

[0053]

As described above, according to the present invention, the cha
The cross-sectional area inside the chamber along the direction of air blow from the air conditioner.
Side from the downstream side to the downstream side to continuously block the downstream end.
It has a chamber body, and the chamber body is
Different positions along at least upstream outlet and below
Discharge side outlets are provided, and the outlets are connected to these outlets.
The air blow condition of each duct can be set so that the static pressure reacquisition due to the chamber-specific pressure loss and the decrease in the air flow is apparently zero because it is configured to connect the ducts. It is not necessary to set the air flow rate to each duct depending on the opening position, and as a result,
At the time of construction of the duct distribution type air conditioning system equipped with the chuck, it is possible to adjust the air volume of each duct only by considering the pressure loss due to the length and bending of the duct, and the workability is improved. This has the effect of making it possible to equalize the amount of air blown to each air-conditioned space.

Particularly, according to the present invention, as described above,
The cross-sectional area inside the chamber is continuous from the upstream side to the downstream side in the blowing direction.
At least in the chamber body where the downstream end is blocked.
Also has an upstream outlet and a downstream outlet.
And the chamber body whose outlets are opened by
Is a discontinuous change part of the internal cross-sectional area such as a stepped throttle part
Since there is no, it is possible to realize the size of the chamber itself, and storability of the short-range space of the building such as ceiling can be improved together,
Without such fluid separation and vortices are generated in Ji Yanba, there is an effect that it reduced the pressure loss and noise.

[0055] According to the invention, duct since a structure with a blowing state setting means for each duct sets the blowing state of each duct so that different blowing state, respectively, to the floor of multi-story buildings In anticipation of pressure loss inside, each duct can be pre-set with different blow conditions .
Accordingly, there is an effect that it is possible to obtain substantially the same air flow rate in the air-conditioned space on each floor.

According to the present invention, each blow of the chamber body is performed.
The duct collar that connects the outlet and the duct, and this duct
A damper for adjusting the air flow rate provided inside the collar
Since it is a ventilation state setting means consisting of
Duct distribution type air conditioning system
The damper considering the pressure loss due to the length and bending
The wind of each duct can be adjusted just by adjusting the opening of the duct collar.
It is easy to adjust the air flow so that the air volume is the same.
There is an effect that it is possible to improve the workability. Also, the above
Duct collar can be attached to and detached from each outlet of the chamber body
Since it becomes a separate piece from the chamber by attaching it to
It is said that the chamber body can be downsized and the handling will be easier.
There is an effect.

[Brief description of drawings]

1 (a) is a plan view showing an air conditioning chamber according to Embodiment 1 of the present invention, FIG. 1 (b) is a right side view of FIG. 1 (a), and FIG. 1 (c) is FIG. The bottom view of (a), FIG.
(D) is a pressure distribution diagram showing the relationship between the dynamic pressure and the static pressure in the chamber 20 according to Embodiment 1 of the present invention.

FIG. 2 is a conceptual diagram of a duct distribution type air conditioning system including an air conditioning chamber according to a second embodiment of the present invention.

FIG. 3 is a perspective view showing a duct collar in FIG.

4 (a) is a plan view of an air conditioning chamber according to Embodiment 3 of the present invention, FIG. 4 (b) is a right side view of FIG. 4 (a), and FIG. 4 (c) is FIG. It is a bottom view of a).

5 (a) is a plan view of an air conditioning chamber according to Embodiment 5 of the present invention, and FIG. 5 (b) is a left side view of FIG. 5 (a).

FIG. 6 is a sectional view showing an air conditioning chamber according to a sixth embodiment of the present invention.

FIG. 7 is a sectional view showing an air conditioning chamber according to a seventh embodiment of the present invention.

8 (a) is a plan view showing an air conditioning chamber according to Embodiment 8 of the present invention, FIG. 1 (b) is a right side view of FIG. 1 (a), and FIG. 1 (c) is FIG. It is a bottom view of (a).

FIG. 9 is a conceptual diagram of a duct distribution type air conditioning system including an air conditioning chamber according to a ninth embodiment of the present invention.

FIG. 10 is a conceptual diagram of a duct distribution type air conditioning system including an air conditioning chamber according to a tenth embodiment of the present invention.

FIG. 11 is a conceptual diagram of a duct distribution type air conditioning system including an air conditioning chamber according to an eleventh embodiment of the present invention.

FIG. 12 is a conceptual diagram of a duct distribution type air conditioning system including an air conditioning chamber according to a twelfth embodiment of the present invention.

FIG. 13 is a conceptual diagram of a duct distribution type air conditioning system including an air conditioning chamber according to a thirteenth embodiment of the present invention.

FIG. 14 is a conceptual diagram of a duct distribution type air conditioning system including an air conditioning chamber according to a fourteenth embodiment of the present invention.

FIG. 15 is a side view showing an air conditioning chamber according to a first design example of the related art together with a blast pressure distribution.

FIG. 16 is a side view showing an air conditioning chamber according to a second conventional design example together with a blast pressure distribution.

[Explanation of symbols]

11 air conditioners 20 chambers 21 Blower state setting means 22,23 insulation 24 Current plate (Blower condition setting means) 25,26 damper (air flow state setting means) 27 Aperture plate (blast state setting means) 41,42 duct

─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-5-10540 (JP, A) JP-A-9-42753 (JP, A) Registered utility model 3036315 (JP, U) (58) Fields investigated ( Int.Cl. ⁷ , DB name) F24F 13/02

Claims (4)

(57) [Claims] 1. A cross section of the inside of a chamber for air conditioning connecting the air conditioner and the ducts in order to distribute the conditioned air blown out from the air conditioner into a plurality of ducts.
The product from the upstream side to the downstream side along the direction of air flow from the air conditioner
Has a chamber body that is continuously reduced to block the downstream end.
However, the position of the chamber body is different along the blowing direction.
At least the upstream outlet and the downstream outlet
Provide mouths and connect the ducts to these outlets
An air-conditioning chamber characterized by the above-mentioned configuration . 2. Each duct has a different blowing condition.
Blast state to set the blow state of each duct so that
The air conditioning chamber according to claim 1 , further comprising setting means . 3. A blower state setting means is provided for each chamber body.
With a duct collar that connects the outlet and the duct,
A dan provided inside the duct collar for adjusting the air flow rate.
The air-conditioning chamber according to claim 2 , wherein the air-conditioning chamber comprises a par . 4. A duct collar is provided at each outlet of the chamber body.
The air conditioning chamber according to claim 3 , wherein the air conditioning chamber is detachably attached to the opening .