WO2019171461A1

WO2019171461A1 - Air-conditioning system

Info

Publication number: WO2019171461A1
Application number: PCT/JP2018/008536
Authority: WO
Inventors: 章吾玉木; 守濱田; 拓也松田
Original assignee: 三菱電機株式会社
Priority date: 2018-03-06
Filing date: 2018-03-06
Publication date: 2019-09-12
Also published as: EP3764018A1; JPWO2019171461A1; US20210048199A1; EP3764018A4; JP6937889B2

Abstract

An air-conditioning system according to the present invention air-conditions a room the interior of which has been divided into a plurality of air-conditioned areas having a quadrilateral shape in a plan view. The air-conditioning system is equipped with a usage-side unit that is installed above the ceiling of one of the air-conditioned areas, and that carries out an air-conditioning operation in which that air-conditioned area is air-conditioned. When the air-conditioned area in which the usage-side unit is installed is defined as the installation area, the usage-side unit comprises a main body part for cooling or heating air from the installation area that is drawn in from a suction opening formed in a lower surface portion of the usage-side unit, and a blowing unit that is connected to the main body unit by a duct, and blows air supplied from the main body unit from a discharge opening formed in the lower surface portion. The blowing unit is equipped with vertical wind direction vanes for adjusting the vertical direction of the air blown from the discharge opening, and the vertical wind direction vanes are inclined with respect to a vertical line, and guide the air toward the center of the installation area.

Description

Air conditioning system

This invention relates to the air conditioning system used for the room where the inside is air-conditioned using a some use side unit.

For air conditioning inside a large room such as a office room, an air conditioning system with a plurality of usage-side units is used. That is, a plurality of usage-side units are installed in a room, and each of the plurality of usage-side units performs an air conditioning operation, thereby adjusting the temperature in the room to a comfortable temperature. Note that the air conditioning operation is a cooling operation or a heating operation. In such a conventional air-conditioning system, for example, each of the plurality of usage-side units detects the temperature of its own air-conditioning area with a temperature sensor, and the air-conditioning so that the detected value of the temperature sensor becomes the set temperature. Do the driving. Thereby, the temperature in the room is made uniform in the conventional air conditioning system.

In addition, as a conventional air conditioning system, an air conditioning system in which a part of the room is selectively air conditioned to save energy has been proposed (see Patent Document 1). Specifically, the interior of the room where the air conditioning system described in Patent Document 1 is used is partitioned into a plurality of air conditioning areas having a square shape in plan view. And the air conditioning system of patent document 1 has a some utilization side unit, and a utilization side unit is provided in each ceiling back of the air conditioning area of a room. Each of the usage-side units in the air conditioning system described in Patent Literature 1 includes a human sensor that detects whether or not a person exists. And in the air conditioning system of patent document 1, the use side unit provided in the air and the harmony area where a person exists performs air conditioning operation. At this time, the use-side unit provided in the air-conditioning area where there is no person adjacent to the air-conditioning area where the person exists performs air blowing operation, and the air is discharged downward from the air outlet on the air-conditioning area side where the person exists. Blow out. That is, in the air conditioning system described in Patent Document 1, the air blown from the usage-side unit provided in the air-conditioning area where there is no person becomes an air curtain, and the usage-side provided in the air-conditioning area where the person exists. The temperature-controlled air blown out from the unit is prevented from flowing into an air-conditioning area where no people are present. According to Patent Document 1, by operating the air conditioning system in this way, it is supposed that air conditioning areas where people exist can be selectively air conditioned and energy saving can be achieved.

JP 2017-083084 A

When looking at the boundary between an air-conditioning area where people are present and an air-conditioning area where people are not present, the range of air flow from the user-side unit provided in the air-conditioning area where no people exist is Only below. That is, at the boundary between the air conditioning area where people are present and the air conditioning area where people are not present, an air curtain is formed below the outlet of the use side unit provided in the air conditioning area where no people exist. The air curtain is not formed in most areas. For this reason, in the air conditioning system described in Patent Document 1, the temperature-controlled air blown out from the use-side unit provided in the air conditioning area where a person exists is from a location where no air curtain is formed. Leak into the air conditioning area where there is no air. Therefore, the air conditioning system described in Patent Literature 1 has a problem in that it cannot selectively air-condition a part of the area in the room and cannot sufficiently save energy.

The present invention has been made to solve the above-described problems, and can selectively air-condition a part of a room in a room as compared with the prior art, thereby achieving energy saving as compared with the prior art. The purpose is to obtain a possible air conditioning system.

An air conditioning system according to the present invention is an air conditioning system for air conditioning a room whose interior is partitioned into a plurality of rectangular air conditioning areas in plan view, and is installed on the ceiling of one of the air conditioning areas. A use-side unit that performs air-conditioning operation for air-conditioning the air-conditioning area, and when the air-conditioning area in which the use-side unit is installed is an installation area, the use-side unit is A main body that is installed on the back of the ceiling and cools or heats the air in the installation area sucked from a suction port formed in the lower surface, and is connected to the main body by a duct and installed on the back of the ceiling in the installation area. A blow-out unit that blows out air supplied from the main body portion from a blow-out port formed in the lower surface portion, and the blow-out unit blows out from the blow-out port. Comprising a vertical airflow direction vane for adjusting the vertical orientation of air issued, the vertical airflow direction vane has an inclination with respect to the vertical line, to guide the air toward the center of the installation area.

In the air conditioning system according to the present invention, the temperature-controlled air blown from the blowout port of the blowout unit flows from the installation area after flowing in the center direction of the installation area of the use side unit. For this reason, the temperature-controlled air blown from the blowout port of the blowout unit flows out of the installation area after sufficiently exchanging heat with the air in the installation area. In other words, in the air conditioning system according to the present invention, it is possible to suppress the cold or warm heat from flowing out of the installation area of the usage-side unit as compared with the related art. Therefore, the air conditioning system according to the present invention can selectively air-condition a part of the area in the room as compared with the conventional case, and can save energy as compared with the conventional case.

It is a figure for demonstrating the arrangement configuration of the air conditioning system which concerns on Embodiment 1 of this invention. It is a figure which shows schematic structure of the utilization side unit of the air conditioning system which concerns on Embodiment 1 of this invention. It is a block diagram for demonstrating the control apparatus of the air conditioning system which concerns on Embodiment 1 of this invention. It is a side view for demonstrating the driving | running operation | movement of the conventional air conditioning system. It is a side view for demonstrating the driving | running operation | movement of the air conditioning system which concerns on Embodiment 1 of this invention, and is a figure which shows operation | movement when the utilization side unit is carrying out the cooling operation. It is a side view for demonstrating the driving | running operation | movement of the air conditioning system which concerns on Embodiment 1 of this invention, and is a figure which shows operation | movement when the utilization side unit is heating-operating. It is a flowchart which shows an example of the control method of the air conditioning system which concerns on Embodiment 1 of this invention. It is a figure for demonstrating an example of the driving | running operation | movement of the air conditioning system which concerns on Embodiment 1 of this invention. It is a figure for demonstrating the arrangement configuration of the air conditioning system which concerns on Embodiment 2 of this invention. It is a figure for demonstrating the arrangement configuration of the air conditioning system which concerns on Embodiment 3 of this invention.

Hereinafter, an example of an air conditioning system according to the present invention will be described with reference to the drawings. In addition, the form of each structure described in the following embodiment is an illustration to the last. The air conditioning system according to the present invention is not limited to each configuration described in the following embodiments. Moreover, the combination of structures is not limited to the combination in the same embodiment, You may combine the structures described in different embodiment.

Embodiment 1 FIG.
[Installation configuration of air conditioning system 1]
FIG. 1 is a diagram for explaining an arrangement configuration of an air-conditioning system according to Embodiment 1 of the present invention. FIG. 1 is a view showing the arrangement position of the main body 10 and the blowout unit 20 of the use side unit 2 of the air conditioning system 1 when the room 100 as the air conditioning target space is observed from above. In addition, in FIG. 1, the position of the suction inlet 11 of the main-body part 10 and the blower outlet 21 of the blowing unit 20 is shown.

The air conditioning system 1 according to the first embodiment is used for a room 100 in which the interior is air conditioned using a plurality of use side units such as office rooms. In the first embodiment, the interior of the room 100 is divided into two air-conditioning areas 101 having a quadrangular shape in plan view. Specifically, the interior of the room 100 is partitioned into a square air conditioning area 101A and an air conditioning area 101B in plan view. The air conditioning area 101A and the air conditioning area 101B are adjacent to each other.

Also, the use side unit 2 of the air conditioning system 1 is installed on the back of the ceiling of the air conditioning area 101A and the air conditioning area 101B. And the use side unit 2 installed in the ceiling back of the air conditioning area 101A air-conditions the air conditioning area 101A when the air conditioning operation is performed. Moreover, the utilization side unit 2 installed in the back of the ceiling of the air conditioning area 101B air-conditions the air conditioning area 101B when the air conditioning operation is performed. The air conditioning operation is a cooling operation or a heating operation. In addition, the utilization side unit 2 which concerns on this Embodiment 1 can perform both a cooling operation and a heating operation. That is, in the first embodiment, both the air conditioning area 101A and the air conditioning area 101B are installation areas in which the use-side unit 2 of the air conditioning system 1 according to the first embodiment is installed.

Here, one of the usage side unit 2 installed in the air conditioning area 101A and the usage side unit 2 installed in the air conditioning area 101B is the first usage side unit. In addition, the other of the usage side unit 2 installed in the air conditioning area 101A and the usage side unit 2 installed in the air conditioning area 101B is the second usage side unit. Of the air conditioning area 101A and the air conditioning area 101B, the one where the first usage-side unit is installed is the first installation area. Of the air conditioning area 101A and the air conditioning area 101B, the one where the second usage-side unit is installed is the second installation area.

In addition, below, when distinguishing and showing the use side unit 2 installed in the ceiling back of each air conditioning area 101, the code | symbol of each structure of the use side unit 2 is followed by the end of the installed air conditioning area 101. A capital letter is attached. For example, each component of the usage-side unit 2 installed behind the ceiling of the air-conditioning area 101A is given an alphabetic capital “A” after the symbol of each component. Further, for example, each component of the usage-side unit 2 installed behind the ceiling of the air-conditioning area 101B is given an alphabetic capital letter “B” after the symbol of each component. In addition, a plurality of the same configurations may be installed in the same air conditioning area 101. In such a case, when distinguishing each of the same configurations, a lower case alphabet is added to the end of the code. For example, as described later, the usage-side unit 2A installed in the air conditioning area 101A includes four blowing units 20A. When distinguishing and showing these blowing units 20A, they shall be shown as blowing unit 20Aa, blowing unit 20Ab, blowing unit 20Ac, and blowing unit 20Ad.

Each of the use side units 2 includes one main body 10 and four blowing units 20. The main body 10 is installed behind the ceiling of the air conditioning area 101. Further, the main body 10 is formed with a suction port 11 communicating with the air conditioning area 101 on the lower surface. The main body 10 is configured to cool or heat the air in the air-conditioning area 101 sucked from the suction port 11. For example, the main body 10 is installed such that the center 12 of the suction port 11 coincides with the center 102 of the air-conditioning area 101 in plan view. In addition, the main-body part 10 may be installed so that the center 12 of the suction inlet 11 may not correspond with the center 102 of the air conditioning area 101 in planar view.

The blowing unit 20 is installed behind the ceiling of the air conditioning area 101. Further, the blowout unit 20 has a blowout port 21 communicating with the air-conditioning area 101 on the lower surface portion. Further, the blowout unit 20 is connected to the main body 10 by a duct 30. That is, the blowing unit 20 is configured to blow the temperature-controlled air supplied from the main body 10 from the blower outlet 21 to the air conditioning area 101. Each of the blowout units 20 is installed at a position where the blowout port 21 is near each side of the air-conditioning area 101 in plan view. Further, each of the blowout units 20 is installed such that the longitudinal direction of the blowout port 21 is along each side of the air conditioning area 101 in a plan view.

Specifically, the main body 10A of the use side unit 2A is installed so that the center 12A of the suction port 11A coincides with the center 102A of the air-conditioning area 101A in plan view. The blowout unit 20Aa of the use side unit 2A is installed at a position where the blowout port 21Aa is in the vicinity of the side that is the left side of the air conditioning area 101A in FIG. The blowout unit 20Ab of the use side unit 2A is installed at a position in the vicinity of the side of the air conditioning area 101A on the right side of the paper surface of the air conditioning area 101A in FIG. The blowout unit 20Ac of the use side unit 2A is installed at a position where the blowout port 21Ac is in the vicinity of the side that is the upper side of the paper surface of the airconditioning area 101A in FIG. The blowout unit 20Ad of the use side unit 2A is installed at a position where the air outlet 21Ad is near the side of the air conditioning area 101A on the lower side in FIG.

Further, the main body 10B of the use side unit 2B is installed so that the center 12B of the suction port 11B coincides with the center 102B of the air conditioning area 101B in a plan view. The blowout unit 20Ba of the use side unit 2B is installed at a position where the blowout port 21Ba is in the vicinity of the side that is the left side of the air conditioning area 101B in FIG. 1 in plan view of the air conditioning area 101B. The blowout unit 20Bb of the use side unit 2B is installed at a position where the blowout port 21Bb is in the vicinity of the side that is the right side of the air conditioning area 101B in FIG. The blowout unit 20Bc of the use side unit 2B is installed at a position where the blowout port 21Bc is in the vicinity of the side that is the upper side of the paper surface of the airconditioning area 101B in FIG. The blowout unit 20Bd of the use side unit 2B is installed at a position where the air outlet 21Bd is near the side of the air conditioning area 101B on the lower side in FIG.

In plan view, one side of the air conditioning area is generally about 7.2 m. Moreover, the blower outlet 21 can selectively air-condition the air-conditioning area 101 to be air-conditioned when it is installed inside the air-conditioning area 101 to be air-conditioned in plan view. For this reason, each blowing unit 20 has a distance between the center 102 of the air conditioning area 101 and the center 22 of the air outlet 21 within 3.6 m which is half the length of one side of the air conditioning area 101 in plan view. It is good to be installed. Here, the main body 10 is often installed such that the center 12 of the suction port 11 coincides with the center 102 of the air conditioning area 101 in plan view. For this reason, each blow-out unit 20 has a distance between the center 12 of the suction port 11 and the center 22 of the blow-out port 21 within 3.6 m which is half the length of one side of the air-conditioning area 101 in plan view. It is good to be installed in.

[Device configuration of user unit 2]
FIG. 2 is a diagram illustrating a schematic configuration of a usage-side unit of the air-conditioning system according to Embodiment 1 of the present invention. FIG. 2 is a vertical cross-sectional view of the room 100 passing through the main body 10, the blowing unit 20Aa, and the blowing unit 20Ab of the use side unit 2A. Since the usage side unit 2A and the usage side unit 2B have the same configuration, the usage side unit 2 will be described below using the usage side unit 2A. Moreover, since the blowing unit 20Ac and the blowing unit 20Ad have the same configuration as the blowing unit 20Aa and the blowing unit 20Ab, the blowing unit 20Ac and the blowing unit 20Ad are not shown.

As described above, the usage-side unit 2A includes the main body portion 10A installed on the ceiling 104A of the air conditioning area 101A. A blower 14A and a heat exchanger 13A are accommodated in the main body 10A. The blower 14A sucks the air in the air conditioning area 101A from the suction port 11A of the main body 10A, and sends the sucked air to the blowing unit 20A. The heat exchanger 13A cools or heats the air in the air-conditioning area 101A sucked into the main body 10A by the blower 14A, and adjusts the temperature of the sucked air. Specifically, when the use-side unit 2A performs the cooling operation, a refrigerant having a temperature lower than that of the air in the air conditioning area 101A flows through the heat exchanger 13A, and the air conditioning area sucked into the main body 10A by the refrigerant. The air of 101A is cooled. When the use side unit 2A performs the heating operation, the refrigerant having a temperature higher than the air in the air conditioning area 101A flows through the heat exchanger 13A, and the air conditioning area 101A sucked into the main body 10A by the refrigerant. Heat the air.

Further, as described above, the usage-side unit 2A includes the blowing unit 20Aa, the blowing unit 20Ab, the blowing unit 20Ac, and the blowing unit 20Ad installed on the ceiling 104A of the air-conditioning area 101A. Each of the blowing unit 20Aa, the blowing unit 20Ab, the blowing unit 20Ac, and the blowing unit 20Ad is connected to the main body 10 by a duct 30A. FIG. 2 shows a duct 30Aa that connects the main body 10 and the blowing unit 20Aa, and a duct 30Ab that connects the main body 10 and the blowing unit 20Ab. That is, the air whose temperature is adjusted by being sucked into the main body 10A flows into the duct 30A connected to each blowing unit 20A, and is divided into four directions. And the air which flowed in each duct 30A is blown off from the blower outlet 21A of each blower unit 20A to the air conditioning area 101A.

Each of the blowout unit 20Aa, the blowout unit 20Ab, the blowout unit 20Ac, and the blowout unit 20Ad is provided with a vertical wind vane 23A that adjusts the vertical direction of the air blown from the blowout port 21A. Note that FIG. 2 illustrates the vertical air vane 23Aa of the blowout unit 20Aa and the vertical wind vane 23Ab of the blowout unit 20Ab. Each of the up-and-down airflow direction vanes 23A provided in each blowing unit 20A has an inclination with respect to the vertical line during the air-conditioning operation, and the air blown out from the outlet 21A toward the center 102A of the air-conditioning area 101A. Guide the air.

Here, each up-and-down wind vane 23A may be a fixed type that does not operate during the operation of the use side unit 2A, or may be a movable type that can change the inclination by electric power during the operation of the use side unit 2A. Each up-and-down wind direction vane 23A concerning this Embodiment 1 becomes a movable type which can change inclination by electric power during operation of use side unit 2A, and has composition which can be changed into arbitrary inclination. For this reason, each up-and-down airflow direction vane 23A concerning this Embodiment 1 has composition which can change an inclination at the time of air_conditionaing | cooling operation and heating operation. Therefore, the usage-side unit 2A according to the first embodiment includes the power supply line 3A that supplies power to the up-down wind direction vane 23A. The feed line 3A is connected to a drive source (not shown) of the up / down wind direction vane 23A. The drive source is, for example, a motor. FIG. 2 shows a power supply line 3Aa that supplies power to the up-and-down air direction vane 23Aa and a power supply line 3Ab that supplies power to the up-and-down air direction vane 23Ab.

Specifically, each power supply line 3A is connected to the electric box 6A. The electric box 6A is connected to a power source (not shown) laid in a building having a room 100. Thereby, electric power is supplied to each up-and-down wind direction vane 23A from the power supply which is not illustrated. Here, in the first embodiment, at least a part of the feed line 3A is arranged in contact with the duct 30A. In other words, at least a part of the power supply line 3A is arranged along the duct 30A. By arranging the feeder line 3A in this way, the wiring state becomes clean.

Further, in the usage-side unit 2A according to the first embodiment, each of the blowing unit 20Aa, the blowing unit 20Ab, the blowing unit 20Ac, and the blowing unit 20Ad adjusts the lateral direction of the air blown from the blower outlet 21A. The right and left wind direction vanes 24A are provided. FIG. 2 shows the left and right airflow direction vanes 24Aa of the blowing unit 20Aa and the left and right airflow direction vanes 24Ab of the blowing unit 20Ab.

Here, each of the left and right wind vanes 24A may be a fixed type that does not operate during the operation of the use side unit 2A, or may be a movable type that can change the inclination by electric power during the operation of the use side unit 2A. Each of the left and right wind direction vanes 24A according to the first embodiment is movable so that the inclination can be changed by electric power during operation of the use side unit 2A, and can be changed to an arbitrary inclination. For this reason, the drive source (not shown) of each of the left and right wind direction vanes 24A according to the first embodiment is connected to the feed line 3A. The drive source is, for example, a motor.

Further, the use side unit 2A according to the first embodiment includes a human sensor 4A that detects whether or not a person is present in the air conditioning area 101A. The human sensor is, for example, a sensor using an infrared sensor. In the first embodiment, the human sensor 4A is a sensor installed in the usage-side unit 2A, but is not limited to this. For example, the human sensor 4A may be a sensor that detects the presence or absence of a person in the air-conditioning area 101A by detecting the presence or absence of a keyboard operation of a personal computer (not shown) installed in the air-conditioning area 101A. Good. That is, the human sensor 4 </ b> A only needs to be included in the air conditioning system 1.

Further, the use side unit 2A according to the first embodiment includes a temperature sensor 5A that detects the temperature of the air in the air conditioning area 101A. In the first embodiment, the temperature sensor 5 </ b> A is installed in the main body 10 on the downstream side of the suction port 11 </ b> A. That is, in this Embodiment 1, it has the structure which detects the temperature of the air of the air conditioning area 101A inhaled in the main-body part 10 with the temperature sensor 5A.

[Control device for air conditioning system 1]
FIG. 3 is a block diagram for explaining the control device for the air-conditioning system according to Embodiment 1 of the present invention. FIG. 3 is a block diagram of a control device 50A provided in the use side unit 2A in the control device 50.
In the first embodiment, the control device 50 of the air conditioning system 1 is divided into a control device 50A provided in the use side unit 2A and a control device 50B provided in the use side unit 2B. The control of each component of the control device 50A and the control of each component of the control device 50B are the same. For this reason, below, control device 50 is explained using control device 50A. Of course, the control device 50A and the control device 50B may be configured integrally. In this case, one control device 50 controls each configuration of the usage-side unit 2A and each configuration of the usage-side unit 2B.

The control device 50A is configured by dedicated hardware or a CPU (Central Processing Unit) that executes a program stored in a memory. Note that the CPU is also referred to as a central processing unit, a processing unit, an arithmetic unit, a microprocessor, a microcomputer, or a processor.

When the control device 50A is dedicated hardware, the control device 50A is, for example, a single circuit, a composite circuit, an ASIC (application specific integrated circuit), an FPGA (field-programmable gate array), or a combination of these. Applicable. Each functional unit realized by the control device 50A may be realized by individual hardware, or each functional unit may be realized by one piece of hardware.

When the control device 50A is a CPU, each function executed by the control device 50A is realized by software, firmware, or a combination of software and firmware. Software and firmware are described as programs and stored in a memory. The CPU implements each function of the control device 50A by reading and executing the program stored in the memory. Here, the memory is, for example, a nonvolatile or volatile semiconductor memory such as a RAM, a ROM, a flash memory, an EPROM, or an EEPROM.

A part of the function of the control device 50A may be realized by dedicated hardware and a part may be realized by software or firmware.

The control device 50A according to the first embodiment includes an input unit 51, a calculation unit 52, a control unit 53, and a storage unit 54 as functional units. The input unit 51 is a functional unit to which detection values of the temperature sensor 5A and the human sensor 4A are input. From the remote controller (not shown) or the like, the input unit 51 starts and stops the cooling operation, starts and stops the heating operation, the set temperature of the use side unit 2A during the cooling operation, and the setting of the use side unit 2A during the heating operation. Temperature etc. are also input. Based on the information input to the input unit 51 and the information stored in the storage unit 54, the calculation unit 52 uses the inclination of the up / down airflow vane 23A, the inclination of the left / right airflow vane 24A, the rotational speed of the blower 14A, and the like. It is a functional part which calculates the control parameter at the time of air-conditioning operation of the side unit 2A. The control unit 53 is a functional unit that controls the inclination of the up / down airflow vane 23A, the inclination of the left / right airflow vane 24A, the rotational speed of the blower 14A, and the like based on the control parameters calculated by the calculation unit 52 and the like. The storage unit 54 is a functional unit that stores information input to the input unit 51, setting values used by the control unit 53, control target values, and the like.

[Operation of air conditioning system 1]
Then, the operation | movement operation | movement of the air conditioning system 1 which concerns on this Embodiment 1 is demonstrated. In addition, below, first, the operation | movement operation | movement of the conventional air conditioning system 201 is demonstrated so that the effect of the air conditioning system 1 may be understood easily. And after that, the driving | running operation | movement of the air conditioning system 1 which concerns on this Embodiment 1 is demonstrated.

FIG. 4 is a side view for explaining the operation of the conventional air conditioning system. FIG. 4 is a side view showing a state in which the conventional air conditioning system 201 is installed in the room 100. In the conventional air conditioning system 201, a use side unit 202 is installed on the back of each ceiling of the air conditioning area 101A and the air conditioning area 101B. The usage side unit 202 is a usage side unit of a four-way ceiling cassette type. Specifically, the use side unit 202 includes a substantially rectangular parallelepiped casing 210 having a suction port 211 and four air outlets 221 formed in the lower surface portion. The suction port 211 is formed at the center of the lower surface of the housing 210. The four air outlets 221 are formed on the lower surface portion of the housing 210 so as to surround the four sides of the suction port 211. Further, inside the casing 210, a blower (not shown) for sucking air from the inlet 211 and blowing it out from the outlet 221 and heat exchange (not shown) for cooling or heating the air sucked into the casing 210. Container.

The usage-side unit 202 configured in this way is arranged at a substantially central portion of the air conditioning area 101 in plan view. Then, a blower (not shown) rotates in the housing 210 to suck the air in the air conditioning area 101 into the housing 210 from the suction port 211. The temperature of the sucked air is adjusted by a heat exchanger (not shown) and blown out from the blowout port 221.

At this time, in the conventional use side unit 202, the temperature-controlled air is blown out toward the outer peripheral side of the casing 210 as shown in FIG. Therefore, the temperature-controlled air blown from the use-side unit 202 installed in the air conditioning area 101A to the air conditioning area 101A is transferred to the air conditioning area 101B before sufficiently exchanging heat with the air in the air conditioning area 101A. It will flow out. For this reason, when the use side unit 202 installed in the air conditioning area 101A is in the cooling operation, the cooling heat to be supplied to the air in the air conditioning area 101A before the cooling heat is sufficiently supplied to the air in the air conditioning area 101A. Will flow into the air-conditioning area 101B. In addition, when the use side unit 202 installed in the air conditioning area 101A is in a heating operation, before the heat in the air conditioning area 101A is sufficiently supplied to the air, the temperature to be supplied to the air in the air conditioning area 101A is It will flow out to the air conditioning area 101B.

Therefore, the conventional air conditioning system 201 cannot selectively air-condition the air conditioning area 101A and cannot sufficiently save energy. The same applies to the case where the use side unit 202 installed in the air conditioning area 101B performs the cooling operation and the heating operation.

FIG. 5 is a side view for explaining the operation of the air-conditioning system according to Embodiment 1 of the present invention, and is a diagram showing the operation when the use side unit is in the cooling operation. FIG. 6 is a side view for explaining the operation of the air-conditioning system according to Embodiment 1 of the present invention, and is a diagram showing the operation when the use side unit is in the heating operation.

In the air conditioning system 1 according to the first embodiment, each of the blowing units 20 of the usage-side unit 2 is connected to the main body portion 10 by a duct 30. Therefore, each of the blowout units 20 can be installed at a position where the blowout port 21 is in the vicinity of each side of the air conditioning area 101. That is, the air outlets 21 can be arranged on the outer peripheral side as much as possible in the air conditioning area 101 in a plan view. Further, in the air conditioning system 1 according to the first embodiment, the direction of the air blown out from each of the blowout units 20 during the air conditioning operation is the center of the air conditioning area 101 with respect to the vertical line by the vertical wind vane 23. Tilt in the 102 direction.

Therefore, in the air conditioning area 101, the temperature-controlled air blown from each of the air outlets 21A to the air conditioning area 101 flows from the outer peripheral side toward the center in the air conditioning area 101A. And after that, it flows to the outer peripheral side in the air conditioning area 101A again, and flows out from the air conditioning area 101A to the air conditioning area 101B. Therefore, the temperature-controlled air blown out from each of the outlets 21A to the air-conditioning area 101A has a longer residence time in the air-conditioning area 101A, and after sufficiently exchanging heat with the air in the air-conditioning area 101A, the air-conditioning Flows out to area 101B.

For this reason, when the use side unit 2A installed in the air conditioning area 101A is in cooling operation, it is possible to sufficiently supply cold heat to the air in the air conditioning area 101A. Therefore, when the air blown out from each of the air outlets 21A to the air conditioning area 101A flows out to the air conditioning area 101B, the temperature is almost the same as that of the air in the air conditioning area 101A in a state where there is almost no cold. Moreover, when the utilization side unit 2A installed in the air conditioning area 101A is in a heating operation, it is possible to sufficiently supply the heat to the air in the air conditioning area 101A. Therefore, the air blown out from each of the air outlets 21A to the air-conditioning area 101A has almost the same temperature as that of the air in the air-conditioning area 101A when it flows out to the air-conditioning area 101B.

Therefore, the air-conditioning system 1 according to Embodiment 1 can selectively air-condition the air-conditioning area 101A, and can achieve energy saving as compared with the conventional case. The same applies to the case where the air conditioning area 101B is selectively air conditioned.

In addition, the use side unit 2 of the air conditioning system 1 according to Embodiment 1 has different inclinations of the up and down wind direction vanes 23 during the cooling operation and the heating operation. In other words, the use-side unit 2 of the air conditioning system 1 according to Embodiment 1 differs in the direction of air blown from the outlet 21 during the cooling operation and the heating operation.

Specifically, the inclination of the air blown from the outlet 21 during the cooling operation with respect to the vertical line is larger than the inclination of the air blown from the outlet 21 during the heating operation with respect to the vertical line. That is, during the cooling operation, the air blown from the outlet 21 is supplied above the air conditioning area 101 than during the heating operation. The air blown out from the air outlet 21 during the cooling operation is cooler than the air in the air conditioning area 101, and therefore tends to flow downward in the air conditioning area 101. For this reason, at the time of air_conditionaing | cooling operation, the residence time in the air conditioning area 101 of the air which blows off from the blower outlet 21 can be made longer by supplying the air blown from the blower outlet 21 above the air conditioning area 101. FIG. For this reason, at the time of air_conditionaing | cooling operation, it can suppress more that cold heat | fever flows out to the adjacent air conditioning area 101, and can improve an energy saving effect.

Also, during the heating operation, the air blown from the outlet 21 is supplied below the air conditioning area 101 than during the cooling operation. Since the air blown out from the air outlet 21 during the heating operation is warmer than the air in the air conditioning area 101, it tends to flow upward in the air conditioning area 101. For this reason, at the time of heating operation, the air blown from the blower outlet 21 is supplied to the lower part of the air conditioning area 101, so that the staying time of the air blown from the blower outlet 21 in the air conditioning area 101 can be made longer. For this reason, at the time of heating operation, it can suppress more that a heat | fever flows out to the adjacent air conditioning area 101, and can improve an energy saving effect.

Specifically, in the usage-side unit 2 according to the first embodiment, the inclination of the air blown from the outlet 21 during the cooling operation with respect to the vertical line is as shown in FIG. In addition, below, the inclination of the air blown out from the blower outlet 21 at the time of air_conditionaing | cooling operation is demonstrated using the utilization side unit 2A. During the cooling operation of the use-side unit 2A, the air blown out from each outlet 21A is a vertical line 103 passing through the center 102A of the air-conditioning area 101A before reaching the floor surface 105 of the air-conditioning area 101A in a side view. To reach. By making the inclination of the air blown from each air outlet 21A during the cooling operation with respect to the vertical line in this way, the staying time of the air blown from each air outlet 21A in the air conditioning area 101A can be made longer. For this reason, at the time of air_conditionaing | cooling driving | operation of the utilization side unit 2A, it can suppress more that a cold heat | fever flows out from the air conditioning area 101A to the air conditioning area 101B, and can improve an energy saving effect.

Further, in the first embodiment, during the cooling operation of the use side unit 2A, the up-and-down airflow vanes 23A of the respective blowing units 20A have substantially the same inclination. For this reason, the air blown out from each outlet 21A collides in the vicinity of the vertical line 103 passing through the center 102A of the air conditioning area 101A, and can remain longer in the vicinity of the center 102A of the air conditioning area 101A in plan view. Moreover, it can suppress that the air which blown off from each blower outlet 21A collides directly with the floor surface 105 of 101 A of air conditioning areas. For this reason, it can suppress that a flow direction changes when the air blown from each blower outlet 21A collides with the floor surface 105, and flows out to the air conditioning area 101B. Therefore, at the time of the cooling operation of the use side unit 2A, it is possible to further suppress the cooling heat from flowing from the air conditioning area 101A to the air conditioning area 101B by setting the vertical air direction vanes 23A of the blowout units 20A to have substantially the same inclination. That is, during the cooling operation of the use side unit 2A, the energy saving effect can be further improved by setting the up-and-down airflow direction vanes 23A of the respective blowing units 20A to have substantially the same inclination.

Also, specifically, in the use side unit 2 according to the first embodiment, the inclination of the air blown from the outlet 21 during the heating operation with respect to the vertical line is as shown in FIG. In addition, below, the inclination of the air blown out from the blower outlet 21 at the time of heating operation is demonstrated using the utilization side unit 2A. During the heating operation of the use-side unit 2A, the air blown out from each outlet 21A has a floor surface 105 of the air-conditioning area 101A before reaching the vertical line 103 passing through the center 102A of the air-conditioning area 101A in a side view. To reach. By making the inclination of the air blown from each air outlet 21A during the heating operation with respect to the vertical line in this way, the warm air blown from each air outlet 21A can be supplied to the lower part of the air conditioning area 101A. That is, the warm air blown out from each outlet 21A can be supplied to the position of a person existing in the air conditioning area 101A.

In addition, the air blown from each blower outlet 21A directly collides with the floor surface 105 of the air conditioning area 101A by making the inclination with respect to the vertical line of the air blown from each blower outlet 21A during the heating operation in this way. . However, even when the air blown from the respective outlets 21A collides with the floor surface 105, the flow direction changes and most of the air flows in the direction of the center 102A of the air-conditioning area 101A in plan view. For this reason, the heat flowing out from the air conditioning area 101A to the air conditioning area 101B hardly increases.

As described above, the environment of each air-conditioning area 101 can be kept comfortable both during the cooling operation and during the heating operation by making the inclination of the up-and-down wind direction vanes 23 different during the cooling operation and the heating operation. it can.

Moreover, since each use side unit 2 can selectively air-condition each air conditioning area 101 in the air conditioning system 1 according to Embodiment 1, the set temperature of the use side unit 2A and the set temperature of the use side unit 2B. Can be made different by 2 ° C. or more. For example, it is assumed that hot people gather in the air-conditioning area 101A and the set temperature of the usage-side unit 2A is set to 24 ° C. In addition, it is assumed that a cold person gathers in the air conditioning area 101B and the set temperature of the use side unit 2B is set to 26 ° C. In the air conditioning system 1 according to Embodiment 1, each usage-side unit 2 can selectively air condition each air conditioning area 101. Therefore, the air conditioning area 101 in both the air conditioning area 101A and the air conditioning area 101B is in the air conditioning area 101. The temperature can be set as the set temperature. That is, the air conditioning system 1 according to Embodiment 1 can provide a comfortable space for both hot and cold people.

Moreover, the air conditioning system 1 according to the first embodiment includes a human sensor that detects whether or not a person is present in the air conditioning area 101. For this reason, further energy saving can be achieved by changing the driving | operation operation | movement of the utilization side unit 2 according to the presence or absence of the person in the air conditioning area 101. FIG. Below, an example of the control flow which changes the driving | running operation | movement of the utilization side unit 2 according to the presence or absence of the person in the air conditioning area 101 is introduced. In the following description, a method for changing a driving operation according to the presence or absence of a person in the air-conditioning area 101 will be described using the use-side unit 2A. The method for changing the operation of the use side unit 2B is the same.

FIG. 7 is a flowchart illustrating an example of a control method for the air-conditioning system according to Embodiment 1 of the present invention.
When a command for air conditioning operation is input to the input unit 51 of the control device 50A from a remote controller (not shown) or the like, in step S1, the control unit 53 of the control device 50A starts the air conditioning operation of the use side unit 2A. That is, the control unit 53 starts the cooling operation or the heating operation of the use side unit 2A.

Step S2 is a step of determining whether or not a person is present in the air conditioning area 101A. If the human sensor 4A does not detect the presence of a person in step S2, that is, if there is no person in the air conditioning area 101A, the process proceeds to step S3.

When there is no person in the air conditioning area 101A, in step S3, the control unit 53 switches the operation state of the usage side unit 2A from the air conditioning operation to the air blowing operation, and performs the air blowing operation of the usage side unit 2A. As will be described later, steps S2 to S7 shown in FIG. 7 are repeated until an instruction to stop the air conditioning operation of the use side unit 2A is input. For this reason, the operation state of the use side unit 2A may be a blowing operation at the time of step S2. In this case, in step S3, the control unit 53 continues the blowing operation of the use side unit 2A.

Here, the blowing operation is an operation in which air is not cooled and heated by the heat exchanger 13A, and the air in the air-conditioning area 101A sucked from the suction port 11A is blown out from each outlet 21A at the same temperature. is there. By setting the use side unit 2A to the air blowing operation, the temperature of the air conditioning area 101A where no person is present is not adjusted, so that the power consumption of the air conditioning system 1 can be reduced. In addition, when the use side unit 2A performs the air blowing operation and the use side unit 2B performs the cooling operation, the temperature in the air conditioning area 101A is higher than the temperature in the air conditioning area 101B. Further, when the use side unit 2A performs the air blowing operation and the use side unit 2B performs the heating operation, the temperature in the air conditioning area 101A is lower than the temperature in the air conditioning area 101B. However, since the use side unit 2B can selectively air-condition the air conditioning area 101B as described above, the comfort of the air conditioning area 101B can be maintained even if the use side unit 2A performs the air blowing operation.

Further, when there is no person in the air conditioning area 101A, in step S4 after step S3, the control unit 53 makes the rotational speed of the blower 14A lower than the set value of the blower 14A during the air conditioning operation. That is, the rotation speed of the blower 14A when the use side unit 2A performs the air blowing operation is lower than the rotation speed of the blower 14A when the use side unit 2A performs the air conditioning operation. By reducing the rotational speed of the blower 14A when there is no person in the air-conditioning area 101A, the blowing power of the blower 14A can be reduced, and the power consumption of the air-conditioning system 1 can be reduced.

Step S7 after step S4 is a step of determining whether or not there is a command to stop the air conditioning operation of the use side unit 2A from a remote controller (not shown) or the like. In step S7, when the stop command of the air conditioning operation of the use side unit 2A is not input to the input unit 51 of the control device 50A, the process returns to step S2. Moreover, in step S7, when the stop command of the air conditioning operation of the use side unit 2A is input to the input unit 51 of the control device 50A, the control unit 53 stops the air conditioning operation of the use side unit 2A.

On the other hand, if the human sensor 4A detects the presence of a person in step S2, that is, if there is a person in the air conditioning area 101A, the process proceeds to step S5. When a person exists in the air conditioning area 101A, the control unit 53 continues the air conditioning operation in step S5. Note that steps S2 to S7 shown in FIG. 7 are repeated until an instruction to stop the air conditioning operation of the use side unit 2A is input. For this reason, the operation state of the use side unit 2A may be a blowing operation at the time of step S2. In this case, in step S5, the control unit 53 switches the operation state of the use side unit 2A from the air blowing operation to the air conditioning operation.

In step S6 after step S5, the control unit 53 sets the rotation speed of the blower 14A as the set value during the air conditioning operation, and proceeds to step S7. In step S7, when the stop command of the air conditioning operation of the use side unit 2A is not input to the input unit 51 of the control device 50A, the process returns to step S2. Moreover, in step S7, when the stop command of the air conditioning operation of the use side unit 2A is input to the input unit 51 of the control device 50A, the control unit 53 stops the air conditioning operation of the use side unit 2A.

Moreover, in the air conditioning system 1 which concerns on this Embodiment 1, each blowing unit 20 of the utilization side unit 2 is provided with the left-right wind direction vane 24 which adjusts the direction of the horizontal direction of the air which blows off from the blower outlet 21. Yes. For this reason, a draft feeling is given to the person in the air-conditioning area 101 by adjusting the air blowing directions from the two blowing units 20 facing each other across the center 102 of the air-conditioning area 101 in plan view as follows. This can be suppressed. Here, the draft feeling is a feeling of being hit by the wind and is a feeling that makes a person uncomfortable. Hereinafter, an operation method that can suppress the draft feeling using the use-side unit 2A will be described. Hereinafter, an operation method capable of suppressing the draft feeling will be described with the blowing unit 20Aa as the first blowing unit and the blowing unit 20Ab as the second blowing unit.

FIG. 8 is a diagram for explaining an example of the operation of the air-conditioning system according to Embodiment 1 of the present invention. FIG. 8 is a view showing the arrangement position of the main body 10 and the blowing unit 20 of the use side unit 2 of the air conditioning system 1 when the room 100 that is the air conditioning target space is observed from above. In addition, in FIG. 8, the position of the suction inlet 11 of the main-body part 10 and the blower outlet 21 of the blowing unit 20 is shown.
Here, when explaining the driving method capable of suppressing the draft feeling, the first virtual straight line 111, the second virtual straight line 112, the first direction 121, and the second direction 122 are defined as follows. In plan view, a virtual line connecting the center 22Aa of the outlet 21Aa of the outlet unit 20Aa and the center 102A of the air-conditioning area 101A is defined as a first virtual line 111. In a plan view, a virtual line connecting the center 22Ab of the outlet 21Ab of the outlet unit 20Ab and the center 102A of the air conditioning area 101A is defined as a second virtual line 112. One of the directions perpendicular to the first virtual straight line 111 in the plan view is defined as a first direction 121. In plan view, the other of the directions perpendicular to the first virtual line 111 is defined as a second direction 122.

When defined in this way, the left and right wind direction vanes 24Aa of the blowing unit 20Aa have an inclination that air is blown out from the outlet 21Aa so as to be inclined in the first direction 121 with respect to the first virtual straight line 111. In addition, the left and right airflow direction vanes 24Ab of the blowout unit 20Ab are inclined so that air is blown from the blowout port 21Ab so as to be inclined in the second direction 122 with respect to the second virtual straight line 112.

When air-conditioning the air-conditioning area 101A, it is assumed that the direction of the air blown from the outlet 21A of each outlet unit 20A faces the center 102A of the air-conditioning area 101A in plan view. In this case, if the total amount of air blown from each outlet 21A is large, a region having a relatively high wind speed is generated near the center of the air-conditioning area 101A. For this reason, there exists a possibility of giving a draft feeling to the person who exists near the center of 101 A of air conditioning areas. On the other hand, by setting the left and right wind direction vanes 24Aa of the blowing unit 20Aa and the left and right wind direction vanes 24Ab of the blowing unit 20Ab as shown in FIG. 8, the amount of air blown near the center of the air conditioning area 101A is reduced. For this reason, the wind speed near the center of the air-conditioning area 101A can be suppressed, and it can be suppressed that a person who is present near the center of the air-conditioning area 101A has a draft feeling.

In addition, the structure of the air conditioning system 1 mentioned above is an example to the last. For example, at least one of the usage-side units 2 may include a plurality of main body portions 10. Further, for example, at least one of the blowing units 20 may be disposed at a corner of the air conditioning area 101 in a plan view.

Further, for example, the number of the blowing units 20 included in the use side unit 2 is not limited to four. For example, the use side unit 2 may include five or more blowing units 20 such as arranging two or more blowing units in the vicinity of at least one side of the air conditioning area 101 in plan view. For example, if the number of blowout units 20 is three or less and the amount of blown air from the blowout unit 20 is a desired amount, the number of blowout units 20 may be three or less. That is, the usage-side unit 2 only needs to include at least one blowing unit 20.

Also, for example, the number of usage-side units 2 included in the air conditioning system 1 is not limited to the same number as the air conditioning area 101. What is necessary is just to arrange | position the utilization side unit 2 which concerns on this Embodiment 1 in the at least 1 air conditioning area 101. FIG. In that case, when air-conditioning the whole area in the room 100, a usage-side unit different from the usage-side unit 2 according to the first embodiment may be arranged in the other air-conditioning area 101. In the air conditioning area 101 where the use side unit 2 according to the first embodiment is arranged, the use side unit 2 can selectively air condition the air conditioning area 101. For this reason, if the air conditioning system 1 is provided with the at least 1 utilization side unit 2, energy saving can be aimed at rather than before.

As described above, the air-conditioning system 1 according to Embodiment 1 is an air-conditioning system that air-conditions the room 100 that is partitioned into a plurality of square air-conditioning areas 101 in plan view. The air conditioning system 1 includes a use-side unit 2 that is installed on one ceiling 104 of an air conditioning area 101 and performs an air conditioning operation for air conditioning the air conditioning area 101. When the air-conditioning area 101 where the usage-side unit 2 is installed is an installation area, the usage-side unit 2 is installed in the ceiling 104 of the installation area and sucked from the suction port 11 formed in the lower surface portion. A main body 10 that cools or heats the air in the area, and is connected to the main body 10 by the duct 30 and installed in the ceiling 104 of the installation area, and the air supplied from the main body 10 is formed on the lower surface portion. And a blowout unit 20 that blows out from the outlet 21. The blowout unit 20 includes a vertical wind vane 23 that adjusts the vertical direction of the air blown from the blowout port 21. And the up-and-down wind direction vane 23 has an inclination with respect to a vertical line, and guides air toward the center of the said installation area.

In the air conditioning system 1 according to Embodiment 1, the temperature-controlled air blown from the blowout port 21 of the blowout unit 20 flows from the installation area after flowing in the center direction of the installation area. Become. For this reason, the temperature-controlled air blown from the blower outlet 21 of the blowout unit 20 flows out of the installation area after sufficiently exchanging heat with the air in the installation area. That is, in the air conditioning system 1 according to the first embodiment, it is possible to suppress the outflow of cold or warm heat to the outside of the installation area as compared with the conventional case. Therefore, the air conditioning system 1 according to Embodiment 1 can selectively air-condition a part of the area in the room 100 as compared with the conventional case, and can save energy as compared with the conventional case.

Embodiment 2. FIG.
In the first embodiment, the air conditioning system 1 is used in a room 100 partitioned into two air conditioning areas 101 in a plan view. However, the room in which the air conditioning system 1 can be used is not limited to the room 100 shown in the first embodiment. As shown in the second embodiment, the air conditioning system 1 is installed in a room larger than the room shown in the first embodiment, that is, in a room partitioned into more than two air conditioning areas 101 in plan view. Can be adopted. In Embodiment 2, items that are not particularly described are the same as those in Embodiment 1, and the same functions and configurations as those in Embodiment 1 are described using the same reference numerals.

FIG. 9 is a diagram for explaining an arrangement configuration of the air-conditioning system according to Embodiment 2 of the present invention. FIG. 9 is a view showing the arrangement position of the main body 10 and the blowing unit 20 of the use side unit 2 of the air conditioning system 1 when the room 100 as the air conditioning target space is observed from above. In addition, in FIG. 9, the position of the suction inlet 11 of the main-body part 10 and the blower outlet 21 of the blowing unit 20 is shown.

The room 100 according to the second embodiment is a larger room than the room 100 shown in the first embodiment, for example, a medium-sized or larger office. The interior of the room 100 according to the second embodiment is partitioned into six square air conditioning areas 101 in plan view. Specifically, the interior of the room 100 is partitioned into a rectangular air conditioning area 101A, an air conditioning area 101B, an air conditioning area 101C, an air conditioning area 101D, an air conditioning area 101E, and an air conditioning area 101F in plan view. ing. And the use side unit 2 is installed in each ceiling back of the air conditioning area 101. Moreover, the main-body part 10 of each use side unit 2 is installed so that the center 12 of the suction inlet 11 may correspond with the center 102 of the air conditioning area 101 in planar view. In addition, the installation position of the blowing unit 20 of each use side unit 2 will be described later.

Specifically, in the room 100, there are three desk groups 131 that are mainly a collection of seats for persons in charge at the workplace. Specifically, in the room 100, a desk group 131A, a desk group 131B, and a desk group 131C are installed. These desk groups 131 are installed in the interior zone of the room 100. The interior zone is a range that is not easily affected by sunlight and outside air in the room 100 such as the passage side. In addition, a desk 132 used by an administrator, an upper manager, and the like is installed on the side of each desk group 131. Specifically, a desk 132D is installed on the side of the desk group 131A. A desk 132E is installed on the side of the desk group 131B. A desk 132F is installed on the side of the desk group 131C. These desks 132 are installed in the perimeter zone of the room 100. The perimeter zone is a range that is susceptible to the influence of sunlight and outside air in the room 100 such as the window side. A passage 133 is provided on the side of the desk group 131 opposite to the desk 132 side. A door 134 for entering and exiting the room 100 is installed at one end of the passage 133.

As a general seat layout in a medium-sized or larger office room, as shown in the second embodiment, a desk group 131 that is a collection of seats of persons in charge is installed on the interior zone side, and an administrator is installed on the perimeter zone side. In some cases, a desk 132 used by an upper manager or the like is installed. In such a case, each air conditioning area 101 is provided as shown in the second embodiment. Specifically, one desk group 131 and a desk 132 installed on the side of the desk group 131 are set as one set. Then, an air conditioning area 101 on the interior zone side and an air conditioning area 101 on the perimeter zone side are provided for this one set. Then, as many sets of desk groups 131 and desks 132 as the number of sets of air conditioning areas 101 on the interior zone side and air conditioning areas 101 on the perimeter zone side are provided. Depending on the size of the desk group 131, the two desk groups 131 and the two desks 132 installed on the sides of the desk group 131 may be combined into one set.

Specifically, in the second embodiment, an air conditioning area 101A on the interior zone side and an air conditioning area 101D on the perimeter zone side are provided for the set of the desk group 131A and the desk 132D. For the set of desk group 131B and desk 132E, an air conditioning area 101B on the interior zone side and an air conditioning area 101E on the perimeter zone side are provided. For the set of the desk group 131C and the desk 132F, an air conditioning area 101C on the interior zone side and an air conditioning area 101F on the perimeter zone side are provided. Since positive air conditioning in the passage 133 is not necessary in the room 100, the passage 133 is not included in the air conditioning area 101 in the second embodiment.

Even when the air conditioning system 1 is used in a room 100 partitioned into more than two air conditioning areas 101 as in the second embodiment, as shown in the first embodiment, each usage-side unit 2 is used. By operating, a part of the area in the room 100 can be selectively air-conditioned as compared with the conventional case, and energy saving can be achieved as compared with the conventional case. For example, when each use side unit 2 includes the human sensor 4, it is assumed that there is no occupant in the desk group 131A on the interior zone side, and that the upper length of the desk 132E is absent on the perimeter zone side. In this case, the use side unit 2A and the use side unit 2E may be set to the air blowing operation as shown in FIG. 7 of the first embodiment, and the air conditioning operation of the other use side units 2 may be continued. While maintaining the comfort of the air-conditioning area 101 other than the air-conditioning area 101A and the air-conditioning area 101E, the amount of heat processed by the use-side unit 2A and the use-side unit 2E can be reduced. That is, the power consumption of the air conditioning system 1 can be reduced while maintaining the comfort of the air conditioning area 101 other than the air conditioning area 101A and the air conditioning area 101E.

Although the room 100 according to the second embodiment is partitioned into six air conditioning areas 101, it is needless to say that the air conditioning system 1 may be adopted in the room 100 partitioned into seven or more air conditioning areas 101. Good.

Here, each use side unit 2 of the air conditioning system 1 according to the second embodiment has different installation positions of the blowing units 20 depending on the air conditioning area 101 to be installed. Specifically, in the air-conditioning area 101 having a side facing the side wall 106 of the room 100 in a plan view, the plurality of blowing units 20 are along only a side not facing the side wall 106 of the room 100 in a plan view. Is provided.

For example, in the air conditioning area 101B, none of the four sides faces the side wall 106. For this reason, the use side unit 2B of the air conditioning area 101B is provided with the blowing unit 20B along each of the four sides of the air conditioning area 101B, as in the first embodiment. Further, for example, one side of the air conditioning area 101A, the air conditioning area 101C, and the air conditioning area 101E faces the side wall 106. For this reason, the use side unit 2 of these air conditioning areas 101 is not provided with the blowing unit 20 along one side of the air conditioning area 101 facing the side wall 106 and is not facing the side wall 106. A blowing unit 20 is provided along three sides of the air-conditioning area 101. In addition, the use side unit 2 of these air conditioning areas 101 faces the side wall 106 in the first embodiment in the vicinity of the side not facing the side wall 106 so that the total blown air volume becomes the same as that in the first embodiment. The blowing unit 20 provided in the side which is doing is provided. Note that the total blown air volume may be adjusted by increasing the opening area of at least one outlet 21 of the outlet unit 20.

Further, for example, the air conditioning area 101D and the air conditioning area 101F have two sides facing the side wall 106. For this reason, the use side unit 2 of these air conditioning areas 101 is not provided with the blowing unit 20 along the two sides of the air conditioning area 101 facing the side wall 106, and faces the side wall 106. The blowout unit 20 is provided along two sides of the non-air-conditioning area 101. In addition, the use side unit 2 of these air conditioning areas 101 faces the side wall 106 in the first embodiment in the vicinity of the side not facing the side wall 106 so that the total blown air volume becomes the same as that in the first embodiment. The blowing unit 20 provided in the side which is doing is provided. Note that the total blown air volume may be adjusted by increasing the opening area of at least one outlet 21 of the outlet unit 20.

In the air-conditioning area 101 where at least one side faces the side wall 106 of the room 100 in a plan view, at least a part of the air blown from the blowing unit 20 provided in the vicinity of the side not facing the side wall 106 is air. After passing near the center of the harmony area 101, it collides with the side wall 106. And the air which collided with the side wall 106 flows near the center of the air conditioning area 101 again. For this reason, it is not necessary to install the blowing unit 20 near the side facing the side wall 106 of the room 100 in plan view. Further, assuming that the blowing unit 20 is provided in the vicinity of the side facing the side wall 106 of the room 100 in plan view, the air blown from the blowing unit 20 passes through the vicinity of the center of the air conditioning area 101 and then is adjacent to the air conditioning unit. It flows out to the area 101. For this reason, by utilizing that the air blown out from the blowing unit 20 is reflected by the side wall 106, the air-conditioning area 101 can be more selectively air-conditioned.

Embodiment 3 FIG.
The air conditioning system 1 is not limited to the configuration shown in the first embodiment and the second embodiment, and may be configured as in the third embodiment, for example. In the third embodiment, items that are not particularly described are the same as those in the first or second embodiment, and the same reference numerals are used for the same functions and configurations as those in the first or second embodiment. Will be described.

FIG. 10 is a diagram for explaining an arrangement configuration of the air-conditioning system according to Embodiment 3 of the present invention. FIG. 10 is a view showing the arrangement position of the main body 10 and the blowing unit 20 of the use side unit 2 of the air conditioning system 1 when the room 100 as the air conditioning target space is observed from above. In addition, in FIG. 10, the position of the suction inlet 11 of the main-body part 10 and the blower outlet 21 of the blowing unit 20 is shown.

The room 100 according to the third embodiment is assumed to be a small office room. For this reason, the interior of the room 100 according to Embodiment 3 is partitioned into two air-conditioning areas 101 having a quadrangular shape in plan view. Specifically, the interior of the room 100 is partitioned into a square air conditioning area 101A and an air conditioning area 101B in plan view. And the use side unit 2 is installed in each ceiling back of the air conditioning area 101.

Specifically, in the room 100, two desk groups 131 are installed. Specifically, in the room 100, a desk group 131A and a desk group 131B are installed. These desk groups 131 are installed across the interior zone and the perimeter zone. The air conditioning area 101 is divided by desk groups. Specifically, a desk group 131A is installed in the air conditioning area 101A, and a desk group 131B is installed in the air conditioning area 101B. Moreover, the main-body part 10 of each use side unit 2 is installed so that the center 12 of the suction inlet 11 may correspond with the center 102 of the air conditioning area 101 in planar view. Each of the usage-side units 2 according to the third embodiment includes four blowing units 20. Each of the outlet units 20 of each use side unit 2 is arranged such that the outlet 21 is in the vicinity of each side of the air-conditioning area 101 in plan view.

Further, a passage 133 is provided on the side of the desk group 131. A door 134 for entering and exiting the room 100 is installed at one end of the passage 133. Since positive air conditioning in the passage 133 is not necessary in the room 100, the passage 133 is not included in the air conditioning area 101 in the third embodiment.

Even when the air conditioning system 1 is used in the room 100 according to the third embodiment, by operating each use side unit 2 as shown in the first embodiment, a part of the area in the room 100 is conventionally used. The air conditioning can be performed more selectively than in the past, and energy saving can be achieved as compared with the conventional case. For example, it is assumed that the section using the desk group 131 is a section with many outside sales such as sales. In this case, the desk group 131 often has no attendees. At this time, since each use side unit 2 according to the third embodiment includes the human sensor 4, when there is no occupant in the desk group 131A, the use side unit 2A is replaced with the one shown in FIG. As shown in Fig. 5, the air-blowing operation may be performed and the air-conditioning operation of the use side unit 2B may be continued. While maintaining the comfort of the air-conditioning area 101B, the amount of heat processed by the use-side unit 2A can be reduced. That is, the power consumption of the air conditioning system 1 can be reduced while maintaining the comfort of the air conditioning area 101B.

By the way, in the air conditioning system 1 which concerns on this Embodiment 3, each blowing unit 20 of the utilization side unit 2 is provided with the left-right wind direction vane 24 which adjusts the direction of the horizontal direction of the air which blows off from the blower outlet 21. Yes. For this reason, the air conditioning area 101 is more selectively air conditioned by adjusting the air blowing directions from the two blowing units 20 facing each other across the center 102 of the air conditioning area 101 in plan view. be able to. In the following, an operation method capable of more selectively air-conditioning the air-conditioning area 101A using the use-side unit 2A will be described. In the following, an operation method capable of more selectively air-conditioning the air-conditioning area 101A using the blowing unit 20Ac as the third blowing unit and the blowing unit 20Ad as the fourth blowing unit will be described.

Here, when explaining the operation method that can air-condition the air conditioning area 101A more selectively, the third virtual straight line 113, the fourth virtual straight line 114, the third direction 123, and the fourth direction 124 are changed to the following. Define as follows. A virtual line connecting the center 22Ac of the outlet 21Ac of the outlet unit 20Ac and the center 102A of the air conditioning area 101A in plan view is defined as a third virtual line 113. In plan view, a virtual line connecting the center 22Ad of the outlet 21Ad of the outlet unit 20Ad and the center 102A of the air conditioning area 101A is defined as a fourth virtual line 114. One of the directions perpendicular to the third virtual straight line 113 in the plan view is defined as a third direction 123. In plan view, the other of the directions perpendicular to the third virtual straight line 113 is defined as a fourth direction 124.

When defined in this way, the air conditioning area 101B adjacent to the air conditioning area 101A exists in the fourth direction 124 of the air conditioning area 101A. In addition, the left and right airflow direction vanes 24Ac of the blowout unit 20Ac are inclined such that air is blown from the blowout port 21Ac so as to be inclined in the third direction 123 with respect to the third virtual straight line 113. In addition, the left and right airflow direction vanes 24Ad of the blowout unit 20Ad are inclined such that air is blown from the blowout port 21Ad so as to be inclined in the third direction 123 with respect to the fourth virtual straight line 114.

By setting the left and right airflow direction vanes 24Ac of the blowout unit 20Ac and the left and right airflow direction vanes 24Ad of the blowout unit 20Ad to be inclined as described above, the air conditioning area 101B from the blowout port 21Ac of the blowout unit 20Ac and the blowout port 21Ad of the blowout unit 20Ad. The air whose temperature is adjusted to be away from the air is blown out. For this reason, it can suppress more that cold heat or warm heat flows out from the air conditioning area 101A to the air conditioning area 101B, and the air conditioning area 101A can be more selectively air conditioned.

Further, the air conditioning system 1 according to Embodiment 3 includes a plurality of ventilation devices 40 that ventilate the air conditioning areas 101. That is, the ventilation device 40 is installed in each of the air conditioning areas 101. Each ventilation device 40 has an air supply port 41 and an exhaust port 42 communicating with the air conditioning area 101. That is, the ventilation device 40 sucks air in the air conditioning area 101 from the exhaust port 42 and discharges it to the outside. The ventilation device 40 supplies outside air from the air supply port 41 to the air conditioning area 101.

Specifically, the air conditioning system 1 includes a ventilation device 40A that ventilates the air conditioning area 101A and a ventilation device 40B that ventilates the air conditioning area 101B. The ventilation device 40A has an air supply port 41A and an exhaust port 42A communicating with the air conditioning area 101A. That is, the ventilation device 40A sucks air in the air conditioning area 101A from the exhaust port 42A and discharges it to the outside. The ventilator 40A supplies outside air from the air supply port 41A to the air conditioning area 101A. Similarly, the ventilation device 40B has an air supply port 41B and an exhaust port 42B communicating with the air conditioning area 101B. That is, the ventilator 40B sucks air in the air conditioning area 101B from the exhaust port 42B and discharges it to the outside. The ventilator 40B supplies outside air from the air supply port 41B to the air conditioning area 101B.

Here, in the air conditioning system 1 according to Embodiment 3, when there is no person in the air conditioning area 101A or the air conditioning area 101B, each ventilation device 40 is operated as follows. By operating each ventilation device 40 as follows, it is possible to realize ventilation capable of saving energy while suppressing an increase in the concentration of contaminants in each air-conditioning area 101. In addition, below, the operation method of each ventilation apparatus 40 is demonstrated to an example when the person does not exist in the air conditioning area 101B. In this case, the ventilation device 40A becomes the first ventilation device, the air supply port 41A of the ventilation device 40A becomes the first air supply port, the ventilation device 40B becomes the second ventilation device, and the air supply port 41B of the ventilation device 40B becomes the second air supply port. It becomes an air supply port.

Specifically, when a person is present in the air conditioning area 101A and no person is present in the air conditioning area 101B, the flow rate of the outside air supplied to the air conditioning area 101B from the air supply port 41B of the ventilation apparatus 40B is changed to the ventilation apparatus. More than the flow rate of the outside air supplied to the air conditioning area 101A from the 40A air supply port 41A. That is, the ventilation amount of the air conditioning area 101A is reduced with respect to the ventilation amount of the air conditioning area 101B.

In the environment where the use side unit 2 performs the cooling operation, the outside air is warmer than the air in the air conditioning area 101. Moreover, in the environment where the use side unit 2 performs the heating operation, the outside air is cooler than the air in the air conditioning area 101. For this reason, the air conditioning load of the use side unit 2 increases as the ventilation amount increases, and the power consumption of the air conditioning system 1 also increases. However, by reducing the ventilation amount of the air-conditioning area 101A in which people are present as described above, the air conditioning load of the usage-side unit 2A can be reduced, and the power consumption of the air-conditioning system 1 can also be reduced.

Here, by reducing the ventilation amount of the air conditioning area 101A as described above, there may be a concern about an increase in the concentration of contaminants in the air conditioning area 101A. However, since the outside air supplied to the adjacent air conditioning area 101B flows into the air conditioning area 101A, an extreme bias in the distribution of contaminants does not occur between the air conditioning area 101A and the air conditioning area 101B. For this reason, it is also possible to suppress an increase in the concentration of contaminants in the air-conditioning area 101A.

In the third embodiment, the air supply port 41A of the ventilation device 40A communicates with the air conditioning area 101A at a position farther from the air conditioning area 101B than the center 102A of the air conditioning area 101A in plan view. Yes. By arranging the air supply port 41A of the ventilator 40A in this way, the outside air supplied from the air supply port 41A of the ventilator 40A to the air conditioning area 101A sufficiently exchanges heat with the air in the air conditioning area 101A. Then, it will flow into the air conditioning area 101B. For this reason, it can suppress that the air-conditioning load of the utilization side unit 2B installed in the air conditioning area 101B increases. Similarly, the air supply port 41B of the ventilation device 40B communicates with the air conditioning area 101B at a position farther from the air conditioning area 101A than the center 102B of the air conditioning area 101B in plan view. By arranging the air supply port 41B of the ventilation device 40B in this way, the outside air supplied from the air supply port 41B of the ventilation device 40B to the air conditioning area 101B sufficiently exchanges heat with the air in the air conditioning area 101B. Then, it will flow into the air conditioning area 101A. For this reason, it can suppress that the air-conditioning load of 2 A of utilization side units installed in 101 A of air conditioning areas increases.

1 air conditioning system, 2 usage side unit, 3 (3A) power supply line, 4 human sensor, 5 (5A) temperature sensor, 6 (6A) electrical box, 10 main body, 11 inlet, 12 center, 13 (13A ) Heat exchanger, 14 (14A) blower, 20 outlet unit, 21 outlet, 22 center, 23 vertical air vane, 24 left and right air vane, 30 duct, 40 ventilator, 41 air supply inlet, 42 exhaust outlet, 50 control Equipment, 50A control device, 50B control device, 51 input unit, 52 calculation unit, 53 control unit, 54 storage unit, 100 rooms, 101 air conditioning area, 102 center, 103 vertical line, 104 (104A) ceiling, 105 floor Surface, 106 side walls, 111 first virtual straight line, 112 second virtual straight line, 113 third virtual straight line, 14 4th virtual straight line, 121 1st direction, 122 2nd direction, 123 3rd direction, 124 4th direction, 131 desk group, 132 desk, 133 passage, 134 door, 201 air conditioning system (conventional), 202 use side Unit (conventional), 210 housing (conventional), 211 suction port (conventional), 221 air outlet (conventional).

Claims

An air conditioning system for air conditioning a room whose interior is partitioned into a plurality of square air conditioning areas in plan view,
A user-side unit that is installed behind one ceiling of the air-conditioning area and performs air-conditioning operation for air-conditioning the air-conditioning area;
When the air conditioning area where the use side unit is installed is an installation area,
The user side unit is:
A main body portion that is installed on the back of the ceiling of the installation area and cools or heats the air in the installation area sucked from a suction port formed on the lower surface portion;
A blowout unit connected to the main body portion by a duct and installed in the back of the ceiling of the installation area, and blows out air supplied from the main body portion from a blowout port formed in a lower surface portion,
With
The blowout unit includes a vertical wind direction vane that adjusts the vertical direction of the air blown from the blowout port,
The up-and-down wind direction vane has an inclination with respect to a vertical line, and is an air conditioning system that guides air toward the center of the installation area.
The air conditioning system according to claim 1, wherein the blow-out unit is installed at a position where a distance between the center of the suction port and the center of the blow-out port is within 3.6 m in a plan view.
The up-and-down wind direction vane is movable so that the inclination can be changed by electric power during the operation of the use side unit,
The usage-side unit includes a power supply line that supplies power to the up and down wind direction vanes,
The air conditioning system according to claim 1 or 2, wherein at least a part of the power supply line is disposed in contact with the duct.
The up-and-down wind direction vane is movable so that the inclination can be changed by electric power during the operation of the use side unit,
The use side unit is configured to perform cooling operation and heating operation as the air conditioning operation,
The inclination of the up-and-down airflow direction vane with respect to the vertical line during the cooling operation is larger than the inclination of the up-and-down airflow direction vane with respect to the vertical line during the heating operation. Air conditioning system.
The use side unit is configured to perform a cooling operation as the air conditioning operation,
In side view,
The air blown out from the air outlet during the cooling operation reaches a vertical line passing through the center of the installation area before reaching the floor of the installation area. The air conditioning system described.
The use side unit is configured to perform heating operation as the air conditioning operation,
In side view,
The air blown out from the outlet during the heating operation reaches the floor of the installation area before reaching the vertical line passing through the center of the installation area. The air conditioning system described.
A human sensor for detecting whether a person is present in the installation area;
The usage-side unit includes a blower that sends the air in the installation area sucked from the suction port to the blowing unit,
When there is no person in the installation area, the use side unit performs a blowing operation,
The rotation number of the blower when the use side unit performs the air blowing operation is lower than the rotation number of the blower when the use side unit performs the air conditioning operation. The air conditioning system according to claim 1.
The use side unit includes two blowing units,
Each of the two blowout units includes left and right airflow direction vanes that adjust the lateral direction of the air blown from the blowout port,
When one of the two blowing units is a first blowing unit and the other of the two blowing units is a second blowing unit,
The first blowing unit and the second blowing unit are arranged facing each other across the center of the installation area in plan view,
In plan view,
A virtual straight line connecting the center of the outlet of the first outlet unit and the center of the installation area is a first virtual straight line,
A virtual straight line connecting the center of the outlet of the second outlet unit and the center of the installation area is a second virtual straight line,
One of the directions perpendicular to the first imaginary straight line is a first direction,
When the other of the directions perpendicular to the first virtual line is defined as the second direction,
The left and right airflow direction vanes of the first blowout unit are inclined such that air is blown out from the blowout outlet so as to be inclined in the first direction with respect to the first virtual straight line.
8. The left and right airflow direction vanes of the second blowing unit are inclined so that air is blown out from the outlet so as to incline in the second direction with respect to the second imaginary straight line. The air conditioning system according to one item.
The usage-side unit includes a plurality of the blowing units,
In plan view, at least one side of the installation area faces the side wall of the room,
The air conditioning system according to any one of claims 1 to 8, wherein the plurality of blowing units are provided only along a side that does not face the wall of the room in plan view.
The use side unit includes two blowing units,
Each of the two blowout units includes left and right airflow direction vanes that adjust the lateral direction of the air blown from the blowout port,
When one of the two blowing units is a third blowing unit and the other of the two blowing units is a fourth blowing unit,
The third blowing unit and the fourth blowing unit are arranged facing each other across the center of the installation area in plan view,
In plan view,
A virtual straight line connecting the center of the outlet of the third outlet unit and the center of the installation area is a third virtual straight line,
A virtual straight line connecting the center of the outlet of the fourth outlet unit and the center of the installation area is a fourth virtual straight line;
One of the directions perpendicular to the third imaginary straight line is the third direction,
When the other of the directions perpendicular to the third virtual line is defined as the fourth direction,
In plan view, the air conditioning area adjacent to the installation area exists in the fourth direction of the installation area,
The left and right wind direction vanes of the third blowing unit are inclined such that air is blown out from the outlet so as to be inclined in the third direction with respect to the third imaginary straight line.
10. The left and right airflow direction vanes of the fourth blowing unit are inclined such that air is blown out from the outlet so as to incline in the third direction with respect to the fourth imaginary straight line. The air conditioning system according to one item.
Two use side units are provided,
One of the two usage-side units is a first usage-side unit,
The other of the two usage-side units is a second usage-side unit,
The air conditioning area where the first usage-side unit is installed is a first installation area,
When the air conditioning area where the second usage unit is installed is a second installation area,
The air conditioning system according to any one of claims 1 to 10, wherein the first installation area and the second installation area are adjacent to each other.
The air conditioning system according to claim 11, wherein the set temperature of the first use side unit and the set temperature of the second use side unit differ by 2 ° C or more.
A first ventilator having a first air supply port communicating with the first installation area;
A second ventilator having a second air supply port communicating with the second installation area;
With
Each of the first usage side unit and the second usage side unit includes a human sensor that detects whether or not a person exists,
When a person is present in the first installation area and no person is present in the second installation area, the flow rate of outside air supplied from the second air supply port to the second installation area is the first air supply port. The air conditioning system according to claim 11 or 12, wherein the air flow rate is larger than a flow rate of outside air supplied to the first installation area.
The first air supply port communicates with the first installation area at a position farther from the second installation area than the center of the first installation area in plan view;
The air conditioning system according to claim 13, wherein the second air supply port communicates with the second installation area at a position farther from the first installation area than a center of the second installation area in plan view.