JP2018194258A - Air conditioning system - Google Patents

Abstract

To provide an air conditioning system that can control a flow of air and efficiently supply air with a few air current feeling.SOLUTION: An air conditioning system includes: an air conditioner disposed in an indoor ceiling and having an air outlet; and a duct disposed along the ceiling and guiding air blown out from the air outlet of the air conditioner to supply the air indoors.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an air conditioning system, and more particularly to an illumination-integrated air conditioning system.

  Conventionally, ceiling cassette type air conditioners have been used as air conditioning systems in buildings such as office buildings and public facilities. The ceiling cassette type air conditioner includes an air conditioner main body arranged on the back of the ceiling and a decorative panel arranged on the ceiling surface.

  A general ceiling cassette type air conditioner has a configuration in which air heat-treated in the air conditioner main body is blown out from an air outlet provided in the decorative panel into the room. Therefore, a strong air current is required to reach the air far from the air conditioner.

  However, there is a problem that the user feels a feeling of drying, a feeling of warm air or a feeling of cold air due to the generation of a strong air current.

  Examples of solutions for solving this problem include a ceiling radiation air conditioning system and a ceiling radiation air conditioning system.

  However, this type of air conditioning system requires additional equipment such as a radiation panel and a radiation panel. In particular, when an air conditioner is installed on a wall or the like, there are restrictions on planning. Moreover, when introducing an air conditioner, there is a problem that capital investment is required and that special equipment design and construction techniques are required.

  Therefore, an air conditioner in which a duct for guiding air is provided on the ceiling surface and air is sent from the duct into the room is described in, for example, Japanese Patent Laid-Open No. 6-058610 (Patent Document 1).

  The air conditioner described in Patent Literature 1 includes an air conditioner disposed on the back of the ceiling and a duct disposed on the back of the ceiling so as to be flush with the air conditioner. In this type of air conditioner, the duct is provided as a duct combined ceiling panel having a flat hollow cylindrical structure in which the lower surface is made of a breathable panel also serving as a ceiling finishing material, and the upper surface and both side surfaces are made of heat insulating material.

  In such an air conditioner, the duct combined ceiling panel is disposed under the slab so that the breathable panel is substantially flush with the other ceiling panels, and the hollow portions of the plurality of duct combined ceiling panels are appropriately continued for air conditioning. Coupled to the device. And it is set as the structure which blows off the air-conditioning air ventilated from the air-conditioning apparatus to the room | chamber interior from the air permeable panel. Further, the output of the air blower of the air conditioner is made variable so that the air blow output is larger during heating than during cooling.

JP-A-6-058610 JP 2013-88042 A

  However, in the air conditioner described in Patent Document 1, as described above, the hollow parts of the plurality of ceiling panels for ducts are coupled to the air conditioner, and the air blown from the air conditioning apparatus to the hollow parts of the ceiling panels for both ducts is used. It is configured to blow out directly from the breathable panel. Further, the output of the air blower of the air conditioner is made variable so that the air blow output is larger during heating than during cooling.

  For this reason, especially when a large ventilation output is required, the control of the airflow is not sufficient, and there remains a problem that the user feels a feeling of drying, a feeling of hot air or a feeling of cold air due to the airflow. Moreover, depending on the arrangement of the ceiling panels for both ducts, there remains a problem that the air is difficult to reach depending on the location in the room.

  Then, an object of this invention is to provide the air-conditioning system which can control the airflow of air and can send out air with little airflow feeling efficiently in view of such a situation.

  An air conditioning system according to the present invention is arranged on an indoor ceiling and has an air outlet having an air outlet, and is arranged along the ceiling and guides air blown from the air outlet of the air conditioner. A duct for sending the air into the room, the duct having a side part and a bottom part, and an opening for sending the air toward the room is formed in the side part. It is characterized by.

  For example, when air blown from an air conditioner or the like placed on the ceiling of a room is guided into the room through a duct, the air is guided from the duct as compared to air blown directly into the room from the air conditioner or the like. The air is sent to the room as soft air with little airflow.

  According to the air conditioning system having the above configuration, the air conditioner is disposed on the ceiling of the room and has an air outlet, and is arranged along the ceiling to guide the air blown from the air outlet of the air conditioner. A duct for sending air into the room, and the duct has a side part and a bottom part, and an opening for sending air toward the room is formed in the side part, so that the duct is guided through the duct. The flow of air can be expanded by restricting the flow of air through the duct, and the air sent out from the opening can be diffused to efficiently send out air with less airflow. .

  Thereby, the airflow of air can be controlled and air with little airflow feeling can be sent out efficiently. Furthermore, since the airflow reachable range can be expanded, even if the number of air conditioners or the like is reduced than usual, it is possible to achieve air conditioning with a small temperature difference in a plane. In addition, heat dissipation from the lower part of the duct contributes to reducing the indoor temperature difference.

  As one aspect of the present invention, the room includes a first wall portion and a second wall portion that are arranged to face each other, and the duct includes the vicinity of the first wall portion and the second wall portion. It is preferable that it is formed to extend to the vicinity.

  According to the air conditioning system having the above configuration, the room includes the first wall portion and the second wall portion that are arranged to face each other, and the duct extends to the vicinity of the first wall portion and the vicinity of the second wall portion. Since it is formed so as to extend, air with a little airflow feeling guided from the duct can be efficiently sent over the entire room to the vicinity of the first wall and the vicinity of the second wall.

  As another aspect of the present invention, it is preferable that a plurality of openings are provided at intervals to the end of the duct.

  According to the air conditioning system having the above configuration, since a plurality of openings are provided at intervals to the end of the duct, the air guided from the air outlet of the air conditioner to the end of the duct has a plurality of openings. The air can be further diffused, air with less airflow feeling can be sent out more efficiently, and the airflow reach range can be expanded. Furthermore, since the airflow reachable range can be expanded, even if the number of air conditioners or the like is reduced than usual, it is possible to achieve air conditioning with a small temperature difference in a plane. Thereby, the airflow of air can be controlled and the air with little airflow feeling can be sent out more efficiently.

  As another aspect of the present invention, the plurality of openings include a first opening and a second opening formed on the end side of the duct from the first opening, and the second opening. Preferably has a larger opening area than the first opening.

  The air guided from the air outlet of the air conditioner through the duct tends to decrease the flow rate as the distance from the opening increases as the distance reaches the end of the duct, and the flow rate decreases. According to the air conditioning system having the above configuration, the plurality of openings includes a first opening and a second opening formed on the end side of the duct from the first opening, Since it has a larger opening area than the first opening, the air sent out from the second opening can reduce the blowing force from the opening weaker than the air sent out from the first opening. It is possible to reduce the reduction of the flow rate.

  As another aspect of the present invention, the plurality of openings further include a third opening formed on the end side of the duct from the second opening, and the second opening and the third opening. It is preferable that the distance between the first opening and the second opening is smaller than the distance between the first opening and the second opening.

  As described above, the air guided through the duct from the air outlet of the air conditioner becomes smaller in the blowing force from the opening and the flow rate is reduced as the reach distance becomes longer toward the end of the duct. There is a tendency. According to the air conditioning system having the above-described configuration, the plurality of openings further include a third opening formed closer to the end of the duct than the second opening, and a distance between the second opening and the third opening. Is formed so as to be smaller than the distance between the first opening and the second opening, so that the air sent out from the third opening is compared with the air sent out from the second opening. Further, it is possible to further reduce the weakening of the blowing force from the opening, and it is possible to further reduce the decrease in the flow rate.

  In addition, the air sent out from the second opening can further reduce the weakening of the blowing force from the opening compared to the air sent out from the first opening, and the flow rate can be reduced. Further reduction can be achieved. That is, in the first opening, the second opening, and the third opening, it is possible to prevent the blowing force and the flow rate from decreasing.

  As still another aspect of the present invention, it is preferable that the duct includes a suction port for sucking the air blown out from the air outlet in the vicinity of the air outlet.

  According to the air conditioning system having the above-described configuration, the duct includes the suction port for sucking the air blown from the air blower outlet in the vicinity of the air blowout port. Can be efficiently sucked into the duct.

  As yet another aspect of the present invention, when the flow coefficient at the suction port is α, the flow coefficient α preferably satisfies α ≧ 0.5.

  In the air conditioning system having the above configuration, when the flow coefficient at the suction port is α, the flow coefficient α satisfies α ≧ 0.5, so that the air blown out from the air blow-out port is more efficient from the suction port into the duct. Can be inhaled.

  As yet another aspect of the present invention, when the opening area at the suction port is B and the effective area is αA, the value αA / B of the effective area αA with respect to the opening area B satisfies αA / B ≧ 0.4. Are preferred.

  According to the air conditioning system having the above configuration, when the opening area at the suction port is B and the effective area is αA, the value αA / B of the effective area αA with respect to the opening area B satisfies αA / B ≧ 0.4. The air blown out from the air outlet can be more efficiently sucked into the duct from the suction port.

  As still another aspect of the present invention, it is preferable that an air outlet for blowing out the air toward the first wall portion and the second wall portion is formed at the end portion of the duct.

  The so-called perimeter zone in the vicinity of the wall receives a large amount of heat load, for example, because it receives direct sunlight. According to the air conditioning system having the above configuration, the air outlet of the air conditioner is formed at the end of the duct because the air outlet that blows out air is formed toward the first wall portion and the second wall portion. By preferentially blowing part of the air guided to the duct from the outlet to the perimeter zone, it is possible to increase the efficiency of heat treatment in the perimeter zone.

  As still another aspect of the present invention, it is preferable that the duct is disposed immediately above the indoor partition shelf.

  According to the air conditioning system having the above configuration, since the duct is disposed directly above the indoor partition shelf, the air blown from the opening of the duct does not reach the indoor occupants directly, but the indoor partition shelf. It reaches the resident at a position away from the duct via

  As still another aspect of the present invention, it is preferable to further include a lighting fixture provided on the side portion of the duct.

  According to the air conditioning system having the above configuration, since the lighting fixture provided on the side portion of the duct is further provided, the duct and the lighting fixture can be integrated in the air conditioning system.

  Furthermore, unlike the light radiated directly from the illuminator into the room, the illuminance can be reduced to save energy, but it plays the role of indirect illumination without reducing the brightness. Moreover, it can have a visual effect that the ceiling can be seen high by indirect lighting.

  As described above, according to the air conditioning system of the present invention, it is possible to achieve an excellent effect that it is possible to control the airflow of air and efficiently send out air with less airflow.

1 is a cross-sectional view illustrating a schematic configuration of a duct air conditioning / illumination integrated ceiling system according to an embodiment of the present invention. 1 is a plan view showing a schematic configuration of a duct air conditioning / illumination integrated ceiling system according to an embodiment of the present invention. It is the figure which looked at the duct air-conditioning and lighting integrated ceiling system which concerns on one Embodiment of this invention from the bottom. It is a figure which shows a mode that the air is being blown off to the perimeter zone via the duct air conditioning and lighting integrated ceiling system which concerns on one Embodiment of this invention. It is a figure which shows a mode that the schematic structure of the duct air conditioning and lighting integrated ceiling system which concerns on one Embodiment of this invention is provided in the office. It is sectional drawing of the lighting fixture provided in the side part of the duct air conditioning and lighting integrated ceiling system which concerns on one Embodiment of this invention. It is sectional drawing of the modification of the lighting fixture provided in the side part of the duct air conditioning and lighting integrated ceiling system which concerns on one Embodiment of this invention. It is sectional drawing of the modification of the lighting fixture provided in the side part of the duct air conditioning and lighting integrated ceiling system which concerns on one Embodiment of this invention. It is sectional drawing of the modification of the lighting fixture provided in the side part of the duct air conditioning and lighting integrated ceiling system which concerns on one Embodiment of this invention. It is sectional drawing of the modification of the lighting fixture provided in the side part of the duct air conditioning and lighting integrated ceiling system which concerns on one Embodiment of this invention.

  Hereinafter, an outline of an air conditioning system according to an embodiment of the present invention will be described with reference to the accompanying drawings.

  The air conditioning system according to the present embodiment can use a general air conditioning system. For example, in buildings such as office buildings and public facilities, air is blown from an air conditioner installed on the ceiling or the like. Through the room.

  As shown in FIG. 1, the air conditioning system 100 according to the present embodiment includes an air conditioning unit 10 and a lighting device 30 attached to the air conditioning unit 10. The configuration of the lighting tool 30 will be described later.

(Configuration of air conditioning unit 10)
The air-conditioning part 10 which concerns on this embodiment is arrange | positioned along the ceiling CL of the air conditioner 11 which is arrange | positioned at the ceiling CL of the room R, and has the air blower outlet 11a, as shown to FIGS. 11, a duct 12 that guides the air A blown from the air outlet 11 a and sends the air A into the room R. The arrows in FIGS. 1 to 3 represent the flow of air A.

  The room R includes a first wall portion W1 and a second wall portion W2 that are arranged to face each other. For example, a window W is provided in the first wall portion W1 and the second wall portion W2. In the room R, for example, a plurality of desks D, a plurality of sets of chairs C, a book shelf BS, a partition shelf PS, and the like are arranged as in a general office.

  In this embodiment, the air conditioner 11 can use a general air conditioner, for example, is used for a ceiling cassette type air conditioner, a ceiling cassette type air cleaner, or the like.

  In the present embodiment, the duct 12 has a side portion 13 and a bottom portion 14. An opening 15 through which air A is sent toward the room R is formed in the side portion 13 of the duct 12.

  More specifically, each of the side portions 13 of the duct 12 is formed with an opening 15 for sending out the air A blown from the air outlet 11a in the horizontal direction along the ceiling CL.

  In the present embodiment, the duct 12 is formed to extend to the vicinity of the first wall portion W1 and the vicinity of the second wall portion W2.

  In the present embodiment, a plurality of openings 15 are provided at intervals to the end 12 a of the duct 12. The plurality of openings 15 include a first opening 15a and a second opening 15b formed on the end 12a side of the duct 12 with respect to the first opening 15a. The second opening 15b has a larger opening area B than the first opening 15a.

  That is, the opening area B of the plurality of openings 15 is formed so as to increase toward the end 12 a of the duct 12.

  In the present embodiment, the plurality of openings 15 further include a third opening 15c formed on the end 12a side of the duct 12 from the second opening 15b. Note that the number of openings is not limited to this, and can be changed as appropriate.

  The distance between the second opening 15b and the third opening 15c is formed to be smaller than the distance between the first opening 15a and the second opening 15b. That is, the interval between the openings of the plurality of openings 15 is formed so as to decrease toward the end 12 a of the duct 12.

  In the present embodiment, the duct 12 includes a suction port 12b that sucks the air A blown from the air blower port 11a in the vicinity of the air blower port 11a. The inlet 12b is covered with a mesh shape, for example. In addition, in this embodiment, although the suction inlet 12b is covered with the mesh shape, it is not limited to this, For example, what has a desired flow coefficient and opening area as shown below If it is.

  In the present embodiment, when the flow coefficient at the suction port 12b is α, the flow coefficient α satisfies α ≧ 0.5.

  In the present embodiment, when the opening area at the suction port 12b is B and the effective area is αA, the value αA / B of the effective area αA with respect to the opening area B satisfies αA / B ≧ 0.4.

  In the present embodiment, plastic resin is affixed to the upper surface inside the duct 12 to prevent condensation on the back surface of the ceiling CL (not shown). More specifically, polystyrene resin is affixed to the upper surface inside the duct 12. The polystyrene resin preferably has a thickness of 15 mm or more.

  As shown in FIG. 4, a so-called perimeter zone in the vicinity of the first wall portion W1 (second wall portion W2) receives, for example, direct sunlight, and thus has a large thermal load. Therefore, in this embodiment, the blower outlet 16 which blows off the air A toward the 1st wall part W1 and the 2nd wall part W2 is formed in the edge part 12a of the duct 12. As shown in FIG. The air A from the duct 12 is preferentially blown from the blowout port 16 to the perimeter zone, thereby improving the efficiency of heat treatment in the perimeter zone.

  In this embodiment, the blower outlet 16 is provided with a wind direction plate 16a. The air A blown from the outlet 16 of the end 12a of the duct 12 flows downward through the wind direction plate 16a, and then along the first wall W1 (second wall W2). Since it flows, it is not blown out directly near the window W. With such a configuration, uniform air can be delivered to the vicinity of the first wall portion W1 (second wall portion W2).

  In the present embodiment, the bottom portion 14 of the duct 12 is formed in a flat shape. In the present embodiment, the bottom portion 14 of the duct 12 is formed in a flat shape, but the present invention is not limited to this. For example, the bottom portion 14 of the duct 12 may be formed in an arc shape. In the present embodiment, the heat radiation from the bottom 14 of the duct 12 contributes to reducing the upper and lower temperature difference of the air conditioning system 100.

  In the present embodiment, the duct 12 is disposed immediately above the partition shelf PS of the room R. Thereby, the air A blown out from the duct 12 does not reach the occupants in the room R directly, but reaches the occupants at a position away from the duct 12 via the partition rack PS in the room R.

  By the way, when installing an air conditioner on a ceiling, arrangement | positioning of a lighting fixture may become a problem. For this reason, a ceiling cassette type air conditioner in which a lighting device is provided on a decorative panel of an air conditioner is described in, for example, Japanese Patent Laid-Open No. 2013-88042 (Patent Document 2).

  The ceiling cassette type air conditioner described in Patent Literature 2 includes an air conditioner main body installed behind the ceiling and a rectangular decorative panel exposed on the ceiling surface. The ceiling cassette type air conditioner includes a corner panel that is attached to at least one corner of the decorative panel, a lighting fixture that is installed indoors in an opening formed in the corner panel, and a power supply unit.

  In the ceiling cassette type air conditioner described in Patent Document 2, as described above, the lighting fixture is exposed and installed in the opening in the corner panel of the decorative panel exposed on the ceiling surface. For this reason, there is a problem in design, and the light from the lighting device is directly supplied to the user, so that there is a problem that some users feel dazzling.

  Therefore, the inventors can control the air flow, efficiently send out air with less airflow feeling, have excellent design, and deliver comfortable light. A ceiling system was studied.

(Configuration of the lighting device 30)
In this embodiment, as shown in FIGS. 6 to 10, the lighting device 30 further provided with a side portion 13 of the duct 12 disposed on the ceiling CL of the room R and emitting light toward the ceiling CL. . 6-10, the arrow shown with the dotted line in the figure represents the light radiated | emitted from the lighting fixture 30, or the light reflected by the ceiling CL.

  As shown in FIG. 6, the duct 12 includes a jaw portion 17 that protrudes laterally from the side portion 13. The illumination tool 30 is provided on the jaw 17. The jaw portion 17 includes a rising portion 17b extending upward at the distal end portion 17a.

(Modification 1 of the lighting fixture 30)
Alternatively, as illustrated in FIG. 7, the lighting device 30 may be covered with a shade 31. The illuminating device 30 is attached to the side portion 13 of the duct 12 in an obliquely downward direction. The light emitted from the lighting device 30 is easily dispersed by the shade 31.

(Modification 2 of lighting fixture)
Alternatively, as shown in FIG. 8, the lighting fixture 30 may be a light guide plate lighting fixture 32 provided on the side portion 13 of the duct 12.

(Modification 3 of lighting fixture)
Alternatively, as shown in FIG. 9, the side portion 13 of the duct 12 includes a first side portion 13 a extending downward from the ceiling CL and a second side portion 13 b extending upward from the bottom portion 14 of the duct 12. A gap S may be formed between the first side portion 13a and the second side portion 13b.

  In addition, although not shown in figure, the 1st side part 13a and the 2nd side part 13b may be inclined and provided with respect to the ceiling CL. For example, the first side portion 13 a and the second side portion 13 b may be provided to be inclined outward from the side portion 13 of the duct 12.

(Modification 4 of lighting fixture)
Alternatively, as shown in FIG. 10, a part of the side portion 13 of the duct 12 is formed as a pair of wind direction plates 13c and 13d, and the air A guided to the duct 12 is between the ceiling CL and the wind direction plate 13c. Alternatively, the air may be sent into the room R from between the pair of wind direction plates 13c and 13d.

  In the present embodiment, although not shown, the lighting tool 30 may include a straight tube type LED. Alternatively, the illumination tool 30 may be a fluorescent tube such as a general fluorescent lamp.

  As shown in FIGS. 6-8, in this embodiment, the reflective film 18 which reflects the light radiated | emitted from the lighting fixture 30 is coat | covered at least any one of the ceiling CL and the side part 13 of the duct 12. As shown in FIG. May be. In the present embodiment, the ceiling CL and the side portion 13 of the duct 12 are covered with a reflective film 18 that reflects light emitted from the lighting device 30.

  At least one of the ceiling CL and the side portion 13 of the duct 12 is covered with a highly reflective film having a diffuse reflectance of 90% or more. In the present embodiment, the ceiling CL and the side portion 13 of the duct 12 are covered with a highly reflective film 18 having a diffuse reflectance of 90% or more.

  As described above, according to the air conditioning system 100 according to the present embodiment, the air A guided through the duct 12 is able to expand the air flow reach range by being restricted in flow by the duct 12. The air A sent out from the opening 15 can be efficiently sent out with less airflow feeling by being diffused.

  Thereby, the airflow of the air A can be controlled, and the air A with a little airflow feeling can be sent out efficiently. Furthermore, since the airflow reachable range can be expanded, even if the number of air conditioners 11 or the like is reduced than usual, air conditioning with a small temperature difference in a plane can be achieved. Further, the heat radiation from the lower part of the duct 12 contributes to reducing the temperature difference between the upper and lower sides of the room R.

  Moreover, the air A with a little airflow feeling guided from the duct 12 can be efficiently sent over the entire room R to the vicinity of the first wall W1 and the vicinity of the second wall W2.

  Further, the air A guided from the air outlet 11a of the air conditioner 11 to the end 12a of the duct 12 can be further diffused by the plurality of openings 15, and more efficiently sends out air with less airflow feeling. And the airflow reachable range can be expanded. Furthermore, since the airflow reachable range can be expanded, even if the number of air conditioners 11 or the like is reduced than usual, air conditioning with a small temperature difference in a plane can be achieved.

  In addition, the air A sent out from the second opening 15b can reduce the decrease in the blowing force from the opening and the flow rate can be reduced as compared with the air A sent out from the first opening 15a. Can be reduced.

  Further, in the first opening 15a, the second opening 15b, and the third opening 15c, it is possible to prevent the blowing force and the flow rate from being reduced.

  Moreover, the air A blown out from the air outlet 11a can be efficiently sucked into the duct 12 from the inlet 12b.

  Since the flow coefficient α satisfies α ≧ 0.5, the air A blown out from the air outlet 11a can be efficiently sucked into the duct 12 from the inlet 12b.

  In addition, since the value αA / B of the effective area αA with respect to the opening area B satisfies αA / B ≧ 0.4, the air A blown from the air blowout port 11a is further transferred into the duct 12 from the suction port 12b. Can be efficiently inhaled.

  Further, by preferentially blowing a part of the air A guided to the duct 12 from the air outlet 11a of the air conditioner 11 from the outlet 16 to the perimeter zone, it is possible to improve the efficiency of the heat treatment in the perimeter zone. it can.

  Further, the air A blown from the opening 15 of the duct 12 does not reach the occupants in the room R directly, but reaches the occupants away from the duct 12 via the partition rack PS in the room R. Become.

  Moreover, in the air conditioning system 100, the duct 12 and the lighting fixture 30 can be integrated.

  Furthermore, unlike the light radiated directly from the lighting device 30 into the room R, it is possible to save energy by reducing the illuminance, but it serves as indirect lighting without reducing the feeling of brightness. Moreover, it can also have a visual effect that the ceiling CL can be made high by indirect illumination.

  The air-conditioning system of the present invention is not limited to the above-described embodiment, and can of course be changed as appropriate without departing from the gist of the present invention.

  In the said embodiment, although the polystyrene foam is affixed on the upper surface inside the duct 12 as a heat insulating material, it is not limited to this, Arbitrary heat insulating materials may be affixed. The point is that it can prevent condensation on the lower surface of the ceiling CL.

  In the said embodiment, the blower outlet 16 which blows off the air A toward the 1st wall part W1 and the 2nd wall part W2 is formed in the edge part 12a of the duct 12, and the wind direction board 16a is formed in the blower outlet 16. However, the present invention is not limited to this. For example, the end 12a of the duct 12 is connected to the end 12a of the duct 12 between the window W and the end 12a of the duct 12. An adhesive plate (not shown) may be provided. Thereby, the air A blown out from the blower outlet 16 is made into the left-right direction, ie, the 1st wall part W1 and the 2nd, from the direction which goes to the 1st wall part W1 and the 2nd wall part W2 with a backing plate. It can flow in the direction along the wall W2.

  In the present embodiment, the highly reflective film 18 having a diffuse reflectance of 90% or more is covered. However, the present invention is not limited to this, and the light emitted from the lighting tool 30 toward the ceiling CL is efficiently reflected. Any resident can deliver a comfortable light without feeling dazzling.

  In the present embodiment, a wind direction plate may be provided in each of the plurality of openings 15. Thereby, the air A guided to the duct 12 can be sent out from each of the plurality of openings 15 at any desired angle by the wind direction plate. In this case, the plurality of wind direction plates may be provided so as to be inclined toward the end 12 a of the duct 12.

  The air conditioning system of the present invention is effectively applied to an air conditioning system installed on a ceiling or the like, for example, in a building such as an office building or a public facility.

  DESCRIPTION OF SYMBOLS 10 Air conditioning part, 11 Air conditioner, 11a Air outlet, 12 Duct, 12a End part, 12b Inlet, 13 Side part, 13a First side part, 13b Second side part, 13c, 13d A pair of wind direction plates , 14 bottom part, 15 opening, 1st opening, 15b 2nd opening, 15c 3rd opening, 16 blower outlet, 16a wind direction board, 17 jaw part, 17a tip part, 17b rising part, 18 reflective film (high reflection) Film), 30 lighting fixtures, 31 shades, 32 light guide plate lighting fixtures, 100 duct air conditioning and lighting integrated ceiling system, A air, B opening area, C multiple sets of chairs, CL ceiling, D multiple desks, S clearance, R room, W window, W1 first wall, W2 second wall, BS bookcase, PS partition shelf, α flow coefficient, αB effective area.

Claims (10)

An air conditioner disposed on the ceiling of the room and having an air outlet;
A duct that is arranged along the ceiling, guides the air blown out from the air outlet of the air conditioner, and sends out the air into the room;
The said duct has a side part and a bottom part, The opening which sends out the said air toward the said room is formed in the said side part.   The room includes a first wall portion and a second wall portion that are arranged to face each other, and the duct is formed to extend to the vicinity of the first wall portion and the vicinity of the second wall portion. The air conditioning system according to claim 1.   The air conditioning system according to claim 1 or 2, wherein a plurality of openings are provided at intervals to an end of the duct.   The plurality of openings include a first opening and a second opening formed on the end side of the duct from the first opening, and the second opening is the first opening. The air conditioning system of claim 3 having a larger opening area.   The plurality of openings further include a third opening formed on the end side of the duct with respect to the second opening, and the interval between the second opening and the third opening is The air conditioning system according to claim 3, wherein the air conditioning system is formed so as to be smaller than a distance between the first opening and the second opening.   6. The air conditioning system according to claim 1, wherein the duct includes a suction port that sucks in the air blown from the air blowout port in the vicinity of the air blowout port.   The air conditioning system according to claim 6, wherein when the flow coefficient at the suction port is α, the flow coefficient α satisfies α ≧ 0.5.   The air conditioning system according to claim 7, wherein when the opening area at the suction port is B and the effective area is αA, the value αA / B of the effective area αA with respect to the opening area B satisfies αA / B ≧ 0.4. .   The air conditioning system according to any one of claims 1 to 8, wherein an air outlet that blows out the air toward the first wall portion and the second wall portion is formed at the end portion of the duct. .   The air conditioning system in any one of Claims 1-9 further equipped with the lighting fixture provided in the said side part of the said duct.

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