JP2019178814A - Duct type air conditioning system and outlet port structure thereof - Google Patents

Abstract

To provide a duct type air conditioning system that can effectively utilize an air flow, and an outlet port structure thereof.SOLUTION: An outlet port structure (70) of a duct type air conditioning system is connected to an air conditioning duct provided in a ceiling space of a building and leading to an air conditioner. The outlet port structure of the duct type air conditioning system comprises: an outlet box (71) comprising a side surface and a lower surface; a side surface grille (74) exposed to an indoor space (110) and provided in the side surface of the outlet box; a lower surface grille (75) exposed to the indoor space and provided in the lower surface of the outlet box; and an air blower (76) provided in the outlet box, and for taking air in the indoor space from the side surface grille and sending wind toward the indoor space from the lower surface grille.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a duct type air conditioning system provided in a ceiling space of a building and an outlet structure thereof.

  2. Description of the Related Art Conventionally, in a duct-type air conditioning system, a technique for changing the wind direction with a louver or the like is known in order to prevent the wind from the outlet from directly hitting the human body. In addition, a technique is known in which air from an air conditioner and air in an indoor space are mixed to make the air sent out from the blowout port an appropriate temperature.

  For example, Utility Model Registration No. 3176500 (Patent Document 1) discloses a ceiling-buried air conditioning system that mixes air in an indoor space and air from an air conditioner and blows the mixed air into the indoor space. Has been.

Utility Model Registration No. 3176500

  The louver used for the air outlet adjusts the direction of the wind so that the low-temperature wind does not hit the human body, and the wind from the air conditioning system cannot be used. Moreover, since the 1st opening and the 2nd opening are provided on the same surface of the ceiling, the air-conditioning system of patent document 1 cannot utilize the wind which blows off indoor space actively.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a duct type air conditioning system capable of effectively utilizing an air flow and a blowout structure thereof. .

  An air outlet structure of a duct type air conditioning system according to one aspect of the present invention has a side surface and a lower surface in the air outlet structure of a duct type air conditioning system provided in a ceiling space of a building and connected to an air conditioning duct connected to an air conditioner. A blow-out box, a side grill that is exposed to the indoor space and is provided on the side of the blow-out box, a bottom grill that is exposed to the indoor space and is provided on the lower surface of the blow-out box, and that is provided in the blow-out box, and is opened from the side grill to the indoor space. A blower that takes in the air and sends the wind from the lower grill toward the indoor space.

  Preferably, the opening area of the side grill is larger than the opening area of the lower grill.

  Preferably, the blower is provided close to the lower grill.

  Preferably, the blower is a cross flow fan.

  Preferably, the blower is a propeller fan capable of rotating forward and backward.

  Preferably, the apparatus further includes a control device capable of controlling the operations of the air conditioner and the blower, and the control device calculates the sensible temperature based on the wind speed and temperature of the air discharged from the lower grill during operation.

  Preferably, the control device sets a comfortable temperature that is a target temperature of the room temperature, and when the sensible temperature is higher than the comfortable temperature, a process of increasing the air volume of the blower and / or setting of the air conditioner A process for lowering the temperature is performed, and when the sensory temperature is lower than the comfortable temperature, a process for reducing the air volume of the blower and / or a process for increasing the set temperature of the air conditioner are performed.

  Preferably, the ceiling partition part that partitions the ceiling space and the indoor space includes a falling ceiling or a decorative beam, and the blowout box is provided inside the falling ceiling or the decorative beam.

  A duct type air conditioning system according to one aspect of the present invention is a duct type air conditioning system provided in a ceiling space of a building. A side grille that is exposed to the indoor space and provided on the side of the blowout box; a bottom grille that is exposed to the indoor space and provided on the bottom surface of the blowout box; And a blower for sending wind from the lower grille toward the indoor space.

  According to the present invention, it is an object of the present invention to provide a duct type air conditioning system capable of effectively utilizing an air flow and its outlet structure.

It is a mimetic diagram showing the building where the duct type air-conditioning system concerning an embodiment of the invention was used. It is a perspective view showing a duct type air-conditioning system concerning an embodiment of the invention. It is a schematic diagram which shows the outlet structure of the duct type air conditioning system which concerns on embodiment of this invention, (A) is a schematic diagram which shows the installation location of the outlet structure in indoor space, (B) is an outlet structure (C) is sectional drawing which follows the III (C) -III (C) line | wire shown in FIG.3 (B). It is a schematic cross section explaining operation | movement of the blower outlet structure of the duct type air conditioning system which concerns on embodiment of this invention, (A) is the state which operates the air conditioner and does not operate the air blower, (B) Is a state in which the air conditioner and the air blower are in operation, and (C) is a state in which only the air blower is operated without operating the air conditioner. It is a block diagram which shows the function structure of the duct type air conditioning system which concerns on embodiment of this invention. It is a flowchart which shows the process which a control apparatus performs. It is a flowchart which shows the process which a control apparatus performs after the process of FIG. (A) is a schematic cross section which shows the modification of the blower outlet structure of a duct type air conditioning system, (B) is a schematic cross section explaining operation | movement of a blower outlet structure. It is a schematic cross section which shows the other installation location of the blower outlet structure in indoor space.

  Embodiments of the present invention will be described in detail with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals and description thereof will not be repeated.

<About overview>
The duct type air conditioning system 1 according to the present embodiment employs a whole building air conditioning system that air-conditions a plurality of rooms. First, the building 100 which employ | adopted the whole building air conditioning format is demonstrated, referring FIG.

  The building 100 is, for example, a two-story house, and a plurality of rooms are arranged in the indoor space 110. On the first floor of the house 100, living rooms 111 and 112 and a non-living room 113 are arranged. The living room 111 is a living room, for example, and the living room 112 is a private room such as a bedroom. The non-residential room 113 is a passage room (corridor or entrance hall) provided with an ascending entrance for the stairs 114. On the second floor (ie, the top floor) of the house 100, a plurality of living rooms 115 and 116 and a non-living room 117 are arranged. The living rooms 115 and 116 are private rooms such as a bedroom. The non-living room 117 is a passage room (corridor) in which the downstairs of the staircase 114 is provided on the living room 115 side. In other words, the staircase 114 is an atrium that passes through the first floor and the second floor, and the non-living room 117 on the second floor and the non-living room 113 on the first floor communicate with each other through the staircase 114 without partitioning. Therefore, these non-living rooms 113 and 117 constitute one hall part.

  In the present embodiment, the “room” includes a living room and a non-living room, and the “living room” refers to a space that is continuously used for the purpose of living, working, entertainment, and the like. And means a space that is used for hygiene purposes and passages and is not continuously used among rooms other than the living room.

  A ceiling space 120 is formed between the first floor and the second floor of the house 100 and between the second floor and the roof. The first floor indoor space 110 (rooms 111 and 112, non-living room 113) and ceiling space 120, and the second floor indoor space 110 (rooms 115 and 116, non-living room 117) and ceiling space 120 are partitioned by a ceiling partition 121. ing. In the ceiling space 120 of the first and second floors, the duct type air conditioning system 1 according to the present embodiment is provided. Hereinafter, the duct type air conditioning system 1 will be described.

<Duct type air conditioning system>
The duct type air conditioning system 1 will be briefly described with reference to FIG. In FIG. 2, the direction indicated by the arrow A1 is referred to as the vertical direction, the direction indicated by the arrow A2 is referred to as the horizontal direction, and the direction indicated by the arrow A3 is referred to as the depth direction.

  The duct type air conditioning system 1 according to the present embodiment circulates air discharged from the air conditioner 10 between a plurality of rooms in the house 100 through a plurality of ducts. The duct type air conditioning system 1 according to the present embodiment includes, for example, an air conditioner 10, a suction port 50, a blower fan 20, a branch chamber 30, and an outlet structure 70 (FIG. 1). Further, the duct type air conditioning system 1 is configured to connect the air conditioner 10, the suction port 50, the blower fan 20, the branch chamber 30, and the outlet structure 70 (FIG. 1), the first main duct 61, A second main duct 62, a suction duct 63, and a plurality of branch ducts 64 are provided.

  The air conditioner 10 includes an air conditioner main body 11 and a box-shaped air conditioner casing 12 that covers the air conditioner main body 11. The air conditioner body 11 is a duct type air conditioner, for example. The air conditioner body 11 discharges air sucked from the suction port 50 as conditioned air. The casing 12 for an air conditioner may be formed of a heat insulating material. A first main duct 61 extending in the depth direction is connected to a side surface of the air conditioner casing 12, and the air conditioner 10 is connected to the blower fan 20. A suction duct 63 extending in the vertical direction is connected to the lower surface of the air conditioner casing 12, and the air conditioner 10 is connected to the suction port 50.

  The suction port 50 sucks the air in the indoor space 110 in order to send the air in the indoor space 110 to the air conditioner 10. The suction port 50 faces the non-living rooms 113 and 117 shown in FIG. For example, a filter or the like is attached to the suction port 50 in order to clean air from house dust, pollen, or the like. The suction port 50 is arranged near the floor surface in order to facilitate maintenance work.

  The blower fan 20 includes a fan main body 21 and a box-shaped fan housing 22 that covers the fan main body 21. The fan main body 21 sends out air from the air conditioner 10 toward the branch chamber 30. The fan housing 22 may be formed of a heat insulating material. A second main duct 62 extending in the lateral direction is connected to a side surface of the fan housing 22, and the blower fan 20 is connected to the branch chamber 30. The first main duct 61 and the second main duct 62 are attached to the fan housing 22 in a positional relationship orthogonal to each other. That is, the blower fan 20 changes the direction in which the air from the air conditioner 10 flows.

  The branch chamber 30 branches and discharges the air from the air conditioner 10, and branches the air sent from the second main duct 62 into, for example, six branch ducts 64. Inside the branch chamber 30, a damper (not shown) for adjusting the air volume is attached.

  As shown in FIG. 1, the outlet structure 70 is provided in the ceiling partition part 121. By connecting each branch duct 64 to the outlet structure 70 provided in each room, the air in the branch chamber 30 can be sent into the indoor space 110. The outlet structure 70 will be described later.

  As shown in FIG. 2, the ceiling partition part 121 is provided with a ceiling inspection port 130. The air conditioner 10, the blower fan 20 and the branch chamber 30 are provided adjacent to the ceiling inspection port 130. Thereby, since the air conditioner 10, the blower fan 20, and the branch chamber 30 can be accessed from the ceiling inspection port 130, it is possible to share the inspection ports of these devices. The ceiling inspection port 130 is provided with a lid (not shown) that covers the opening of the ceiling inspection port 130, and the lid forms a part of the ceiling partition 121.

<About the outlet structure>
With reference to FIG. 3, the outlet structure 70 of the duct type air conditioning system 1 will be described in detail. FIG. 3 is a schematic diagram showing the outlet structure 70 of the duct type air conditioning system 1 according to the embodiment of the present invention, and FIG. 3 (A) is a schematic diagram showing the installation location of the outlet structure 70 in the indoor space 110. 3 (B) is a schematic perspective view of the outlet structure 70, and FIG. 3 (C) is a schematic cross-sectional view along the line III (C) -III (C) shown in FIG. 3 (B). . In FIG. 3 and subsequent sectional views, hatching is omitted for easy understanding.

  As shown in FIG. 3A, the outlet structure 70 is provided in the approximate center of the indoor space 110. The ceiling partition part 121 includes a decorative beam 125, and the outlet structure 70 is provided on the decorative beam 125.

  As shown in FIGS. 3B and 3C, the air outlet structure 70 of the duct type air conditioning system 1 includes an air outlet box 71, a side surface grill 74, a lower surface grill 75, and a blower 76. The blowing box 71 is formed of a pair of side surfaces 72 extending in the longitudinal direction and a lower surface 73 connecting the pair of side surfaces 72. In the present embodiment, the pair of side surfaces 72 and the lower surface 73 may be formed by the decorative beam 125. A branch duct 64 is connected to the end portions of the side surface 72 and the lower surface 73 extending in the longitudinal direction. The branch duct 64 is attached to a substantially central portion of the end portion. In the drawings after FIG. 3C, the branch duct 64 is indicated by a broken line for easy understanding.

  A side grille 74 exposed to the indoor space 110 is provided on the side surface 72 of the blowout box 71. The side grille 74 is provided on one of the pair of side surfaces 72, but may be provided on both sides. The wind blown out from the side grille 74 does not directly hit the occupant and can effectively cool the indoor space 110. A lower surface grill 75 exposed to the indoor space 110 is provided on the lower surface 73 of the blowing box 71. Since the wind blown from the lower surface grill 75 directly hits the resident, it can give the resident a “feeling of airflow” and can make the resident feel a “cool feeling”. The side grill 74 and the lower grill 75 are, for example, a lattice grill, a punched grill, and a bladed grill, and include not only a fixed grill but also a movable grill.

  The opening area of the side grill 74 is larger than the opening area of the lower grill 75. The opening area is the total area of the openings where the members constituting the grill are not provided. By installing the outlet structure 70 in the decorative beam 125 provided near the center of the indoor space 110, the design of the indoor space 110 is not impaired, and a resident staying near the center of the living room 116 feels cool. be able to.

  As shown in FIG. 3C, the blower 76 is provided in the blowout box 71. The blower 76 takes in the air in the indoor space 110 from the side grill 74 and sends out air from the bottom grill 75 toward the indoor space 110. The blower 76 is, for example, a cross flow fan. The blower 76 is provided close to the lower surface grill 75. That is, the blower 76 is provided at a lower position shifted from the center position of the branch duct 64. Thereby, since the air blower 76 does not block the air from the branch duct 64, the wind from the branch duct 64 can be sent out positively.

  FIG. 4 is a schematic cross-sectional view for explaining the operation of the outlet structure 70 of the duct type air conditioning system 1 according to the embodiment of the present invention. The outlet structure 70 has three operations of modes A, B, and C. The operation of the outlet structure 70 will be described with reference to FIG. In FIG. 4, the arrow indicates the flow of wind, and the thickness of the arrow indicates the air volume.

  FIG. 4A is a schematic cross-sectional view showing mode A in a state where the air conditioner 10 is operated and the blower 76 is not operated. Referring to FIG. 4A, in mode A, the opening area of side grill 74 is larger than the opening area of lower grill 75, so the amount of air blown from side grill 74 (thick arrow) blows out from lower grill 75. Larger than air volume (thin arrow).

  In this way, when the air conditioner 10 is cooled or heated and the blower 76 is not operated, most of the wind blows out from the side grille 74, so that the wind does not hit the human body, so-called “airless air conditioning” is realized. It is possible to avoid discomfort caused by direct wind hitting the resident. Therefore, this operation is effective when the resident is in the room. Further, since the wind can be blown out in the lateral direction by blowing the wind from the side grill 74, the inside of the living room 116 can be efficiently cooled particularly in summer.

  FIG. 4B is a schematic cross-sectional view showing mode B in a state where the air conditioner 10 and the blower 76 are operated. Referring to FIG. 4B, in mode B, the air in indoor space 110 is taken into side blowing box 71 from side grille 74 by the rotation of blower 76, and the air from air conditioner 10 and the air in indoor space 110 are taken. And the mixed air are blown out from the lower surface grill 75. In the following description, the air blown from the lower surface grill 75 in a state where the air conditioner 10 and the blower 76 are operated is referred to as “mixed air”.

  Thereby, when air-conditioning machine 10 is air-cooled, the air which hits a human body can be made into cold wind which is not too low temperature, and can give an airflow feeling to a resident with cold air which is not too low temperature. When the air conditioner 10 is operated for heating, the warm air is blown out downward of the indoor space 110 so that warm air is circulated in the indoor space 110, and the temperature difference between the upper and lower sides of the indoor space 110. The living area below the indoor space 110 can be warmed quickly. Therefore, this operation is effective when the temperature (room temperature) of the indoor space 110 does not reach the comfortable temperature, or when the indoor space 110 is warmed by driving from the position 30 minutes before the occupant returns home. .

  FIG. 4C is a schematic cross-sectional view showing mode C in a state where only the blower 76 is operated without operating the air conditioner 10. Referring to FIG. 4C, in mode C, air in indoor space 110 is taken into blow box 71 from side grill 74 and air in indoor space 110 is blown out from bottom grill 75. Thereby, when the room temperature is an appropriate temperature, or when it is desired to feel a little wind, a sense of airflow can be given to the resident. Since this operation is a so-called electric fan operation, it is effective not only in summer but also in seasons where no cooling is used, such as spring and autumn.

  Below, the functional structure and operation | movement of the duct type air conditioning system 1 which concern on this Embodiment are demonstrated in detail.

<Functional configuration and operation of duct type air conditioning system>
FIG. 5 is a block diagram showing a functional configuration of the duct type air conditioning system 1 according to the present embodiment.

  Referring to FIG. 5, duct type air conditioning system 1 according to the present embodiment includes an operation unit 81 as a control device. The operation unit 81 receives an input of an instruction regarding the duct type air conditioning system 1 from a resident. The operation unit 81 is provided on the wall surface of the living room 111 on the first floor, for example. The control unit 82 is connected to the operation unit 81 by wire or wirelessly. The control unit 82 is connected to the air conditioner 10 and the blower 76 by wire or wireless, and can control the operations of the air conditioner 10 and the blower 76. The controller 82 sets a comfortable temperature (set temperature). The comfortable temperature here is a target temperature of the indoor space 110 and is a temperature at which a resident feels comfortable. The comfortable temperature is, for example, 26-30 ° C. in summer and 17-23 ° C. in winter. The comfortable temperature may be set automatically in advance by the control unit 82 or may be set manually. Further, the temperature of the indoor space 110 is detected by a temperature sensor provided in the indoor space 110, and the control device 180 is connected to the temperature sensor by wire or wirelessly and can receive a signal from the temperature sensor.

  FIG. 6 is a flowchart showing processing executed by the control unit 82. With reference to FIG. 6, the process which the control part 82 performs when the air conditioner 10 is drive | operating is demonstrated.

  As shown in FIG. 6, the control unit 82 confirms whether the temperature of the indoor space 110 has reached a comfortable temperature (S1). The case where the temperature of the indoor space 110 has reached the comfortable temperature is the case where the temperature of the indoor space 110 is at a comfortable temperature (for example, 26 to 30 ° C.) when the air conditioner 10 is in cooling operation. Yes, when the air conditioner 10 is in a heating operation, the temperature of the indoor space 110 is a comfortable temperature (for example, 17 to 23 ° C.). When the temperature of the indoor space 110 has reached a comfortable temperature, only the air conditioner 10 is operated, and the mode is switched to mode A (FIG. 4A) in which the operation of the blower 76 is stopped (S2). Do not give. When the indoor space 110 has not reached the comfortable temperature, the mode is switched to the mode B (FIG. 4B) in which the air conditioner 10 and the blower 76 are operated (S3). This is to give the residents a sense of airflow in the summer and to feel a cool feeling. In the winter, warm air is circulated in the indoor space 110 to eliminate the temperature difference above and below the indoor space 110. In order to quickly warm the living area below the indoor space 110.

  FIG. 7 is a flowchart showing processing executed by the control unit 82 when the mode B is switched. With reference to FIG. 7, the process performed after switching to the mode B is demonstrated.

First, the temperature (SET ^* ) based on the air discharged from the lower surface grill 75 during the operation of the air conditioner 10 and the blower 76, that is, the air velocity Vr of the mixed air, the temperature Ts of the mixed air, the radiation temperature, the humidity, and the like. Is calculated (S4).

The air velocity Vr of the mixed air is calculated by the following equation from the air volume Qf of the blower 76 and the coefficient k determined from the positional relationship between the outlet structure 70 and the residential area.
Vr = kQf

The temperature Ts of the mixed air is calculated by the following expression from the air volume Qc from the branch duct 64 (air conditioner 10), the air temperature Tc from the branch duct 64 (air conditioner 10), the air volume Qf of the blower 76, and the room temperature Tr. To do.
Ts = {(Qc × Tc) ÷ (Qf−Qc) × Tr} / Qf

Thus, based on the calculated air velocity Vr of the mixed air and the temperature Ts of the mixed air, the sensory temperature (SET ^* ) in the indoor space 110 is calculated (S4). If the sensory temperature (SET ^* ) is the same as the comfortable temperature, the operation is continued with the same setting (S5). When the sensory temperature (SET ^* ) is higher than the comfortable temperature (S6), a process of increasing the air volume Qf of the mixed air or a process of lowering the set temperature of the air conditioner 10 is performed (S7). The sensed temperature is higher than the comfortable temperature because the resident feels hot or too warm. In order to increase the air volume Qf of the mixed air, the air volume of the blower 76 is increased. The process of increasing the air volume of the blower 76 and the process of lowering the set temperature of the air conditioner 10 may be performed manually according to, for example, the resident's preference or may be set to be automatically selected. The process of increasing the air volume of the blower 76 and the process of lowering the set temperature of the air conditioner 10 may be performed in combination.

On the other hand, when the sensory temperature (SET ^* ) is lower than the comfortable temperature (S6), a process for decreasing the air volume Qf of the mixed air or a process for increasing the set temperature of the air conditioner 10 is performed (S8). The sensible temperature is lower than the comfortable temperature because the resident feels too cool or cold. In order to reduce the air volume Qf of the mixed air, the air volume of the blower 76 is decreased. Similarly to the process of S7 described above, the process of reducing the air volume of the blower 76 and the process of increasing the set temperature of the air conditioner 10 may be performed manually according to the resident's preference, for example, or automatically selected. You may set to do. Note that the process of reducing the air volume of the blower 76 and the process of increasing the set temperature of the air conditioner 10 may be performed in combination. If the set temperature of the air conditioner 10 is increased, energy saving can be realized. Thereby, operation | movement of the air blower 76 and the air conditioner 10 can be controlled according to body temperature.

Further, when the sensory temperature (SET ^* ) is lower than the comfortable temperature (S6), the air conditioner 10 is operated without performing the above processing, and the mode A is switched to the state where the blower 76 is not operated. Good.

The processing executed when switching to mode C is the same as that in mode B described above, except for the method of calculating the sensible temperature (SET ^* ). The sensory temperature (SET ^* ) in mode C is calculated based on the air discharged from the lower surface grill 75 during operation of the air conditioner 10, that is, the air volume Qf of the blower 76 and the room temperature Tr (S4).

  Thereby, according to a resident's sensible temperature, the control which switches to the mode A which does not give a feeling of airflow, and the mode B which gives a feeling of airflow can be performed by a simple method, especially in the case of mode B which gives a feeling of airflow It is possible to perform control in accordance with the sensible temperature of the resident. As described above, the airflow blown from the blowout port structure 70 can be effectively utilized.

<Modification of outlet structure of duct type air conditioning system>
With reference to FIG. 8A, the blower 76A of the outlet structure 70A is a propeller fan capable of rotating forward and backward. A plurality of blowers 76 </ b> A may be provided along the longitudinal direction of the lower surface grill 75. In the case of using a propeller fan, in addition to the above-described embodiments, there are the following usage methods.

  FIG. 8B is a diagram illustrating a state in which the propeller fan of the blower 76A is rotated in the reverse direction. In particular, when the air conditioner 10 is heated and the blower 76A is rotated in the reverse direction, the air in the indoor space 110 is taken in from the lower surface grill 75, and the side grill 74 in a state where the air in the air conditioner 10 and the air in the indoor space 110 are mixed. Blow out. Thereby, what is called airflow-less heating in which warm air does not hit the human body can be realized, and high-temperature air staying in the vicinity of the ceiling can be diffused. This mode is performed when the temperature of the indoor space 110 has not reached the comfortable temperature after the resident has come home, so that the temperature difference of the indoor space 110 can be eliminated without giving the resident a feeling of airflow. .

  In addition, although the blower outlet structure 70 in this Embodiment was demonstrated as providing in the duct type air conditioning system 1 of the building 100, you may provide separately as the blower outlet structure 70 single-piece | unit.

  In the above embodiment, the outlet structure 70, 70 </ b> A is provided in the center of the indoor space 110. However, as shown in FIG. 9, the outlet structure 70B may be provided at a corner where the ceiling partition 121 and the wall 122 intersect. This arrangement is effective in a narrow space such as a washroom, a toilet, and a kitchen.

  Moreover, in this Embodiment, the blower outlet structure 70 was provided in the inside of a decorative beam. However, the outlet structure 70 may be provided on the falling ceiling. For example, it can arrange | position on the falling ceiling provided in the wall, and can orient | assign an airflow effectively to a resident by directing the direction of a lower surface grille to the indoor space 110 side. In addition, for example, by installing on a falling ceiling provided on the upper part of a large window, it is possible to effectively apply an air flow to a resident at the window.

  Although the embodiments of the present invention have been described with reference to the drawings, the present invention is not limited to the illustrated embodiments. Various modifications and variations can be made to the illustrated embodiment within the same range or equivalent range as the present invention.

  DESCRIPTION OF SYMBOLS 1 Duct type air-conditioning system, 10 Air conditioner, 11 Air conditioner main body, 12 Air conditioner housing, 20 Fan for fan, 21 Fan main body, 22 Fan housing, 30 Branch chamber, 40 Damper, 50 Suction port, 61 1 main duct, 62 second main duct, 63 duct, 64 branch duct, 70, 70A, 7B air outlet structure, 71 air outlet box, 72 side surface, 73 lower surface, 74 side surface grill, 75 lower surface grill, 76, 76A blower, 81 Operation unit, 82 Control unit, 100 Housing (building), 110 Indoor space, 111, 112, 115, 116 Living room, 113, 117 Non-living room, 114 Staircase, 120 Ceiling space, 121 Ceiling partition, 125 Cosmetic beam, 130 Ceiling inspection door.

Claims (9)

In the air outlet structure of the duct type air conditioning system connected to the air conditioning duct connected to the air conditioner in the ceiling space of the building,
A blowout box having side and bottom surfaces;
A side grille exposed to the indoor space and provided on the side surface of the blowout box;
A bottom grille exposed to the indoor space and provided on the bottom surface of the blowing box;
A blower outlet structure of a duct type air conditioning system, comprising: a blower provided in the blowout box, taking in air in the indoor space from the side grille, and sending wind from the bottom grille toward the indoor space .   The opening structure of the duct type air conditioning system according to claim 1, wherein an opening area of the side grill is larger than an opening area of the lower grill.   The blower outlet structure of a duct type air conditioning system according to claim 1 or 2, wherein the blower is provided in proximity to the bottom grill.   The blower outlet structure of a duct type air conditioning system according to any one of claims 1 to 3, wherein the blower is a cross flow fan.   The blower outlet structure of the duct type air conditioning system according to any one of claims 1 to 3, wherein the blower is a propeller fan capable of rotating forward and backward. A control device capable of controlling operations of the air conditioner and the blower;
The air outlet structure of a duct type air conditioning system according to any one of claims 1 to 5, wherein the control device calculates a sensible temperature based on a wind speed and a temperature of air discharged from the lower grill during operation. The control device sets a comfortable temperature, which is a target temperature of the room temperature,
When the sensible temperature is higher than the comfortable temperature, perform a process of increasing the air volume of the blower and / or a process of lowering the set temperature of the air conditioner,
The blowout of the duct type air conditioning system according to claim 6, wherein when the sensible temperature is lower than the comfortable temperature, a process of reducing the air volume of the blower and / or a process of increasing a set temperature of the air conditioner is performed. Mouth structure. The ceiling partition that separates the ceiling space from the indoor space includes a falling ceiling or a decorative beam,
The air outlet structure of a duct type air conditioning system according to any one of claims 1 to 7, wherein the air outlet box is provided inside the falling ceiling or the decorative beam. In a duct type air conditioning system installed in the ceiling space of a building,
An air conditioner,
An air conditioning duct connected to the air conditioner; a blowout box connected to the air conditioning duct and having a side surface and a lower surface;
A side grille exposed to the indoor space and provided on the side surface of the blowout box;
A bottom grille exposed to the indoor space and provided on the bottom surface of the blowing box;
A duct type air conditioning system comprising: a blower provided in the blowout box, taking in air in the indoor space from the side grille, and sending air from the bottom grille toward the indoor space.

Images