JP7422290B2 - air conditioning system - Google Patents

Description

The present invention relates to an air conditioning system that air-conditions a plurality of spaces.

Conventionally, residences have been air-conditioned using whole-house air conditioners. Furthermore, with the increasing demand for energy-saving housing and stricter regulations, it is expected that highly insulated and highly airtight housing will increase, and there is a demand for air conditioning systems that are suited to these characteristics.

In this type of air conditioning system, the air that is conveyed to the air conditioned room from multiple spaces, etc. is conditioned to a predetermined temperature and humidity in the air conditioned room so that the temperature and humidity of the air in multiple spaces (living rooms) etc. reach the target temperature and humidity. A whole-house air conditioning system is known in which air conditioning is carried out and then transported to each of a plurality of spaces (for example, Patent Document 1).

Japanese Patent Application Publication No. 2020-63899

In conventional central air conditioning systems, an air conditioner installed in the air conditioner room controls the temperature of the air inside the air conditioner, and a humidifier also installed in the air conditioner room humidifies the air inside the air conditioner. It's in control. In particular, humidifiers used in winter can utilize air heated by the heat source of an air conditioner, and therefore can increase the amount of humidification of the air in an air conditioned room. However, if the temperature of the air in multiple spaces (living rooms) reaches the target temperature, the temperature of the air in the air conditioned room will drop by stopping the heat source of the air conditioner or lowering the amount of heat. The humidifier reduces the amount of humidification of the air in the air-conditioned room. For this reason, in the conventional whole-house air conditioning system, it may take a long time for the humidity of the air in a plurality of spaces (rooms) to reach the target humidity. In other words, in the conventional whole-house air conditioning system, the humidification performance of the humidifier changes depending on the operation of the heat source of the air conditioner, and there is a problem that the humidification control by the humidifier is unstable.

The present invention has been made to solve the above problems, and provides an air conditioning system that can perform humidification control using a humidifier in conjunction with temperature control control using an air conditioner.

To achieve this objective, the air conditioning system according to the present invention includes an air conditioning room configured to introduce air from indoors and outdoors, an air conditioner installed in the air conditioning room to temperature-condition the air in the air conditioning room, a humidifier that is installed in the air conditioner and humidifies the air that has been temperature-conditioned by the air conditioner, a plurality of transport fans that transport the air in the air conditioned room to a plurality of indoor spaces independent of the air conditioner, the air conditioner, the humidifier, and A control unit that controls the conveyance fan. Then, the control unit performs temperature control using air in the air conditioned room that has been heated to a first temperature that is higher than the target temperature by the air conditioner in order to adjust the temperature of the indoor air to the target temperature. . At that time, if the humidity of the indoor air is higher than the target humidity, and the temperature of the indoor air rises and reaches the target temperature, the air conditioner will cool the air in the air conditioned room to a temperature higher than the first temperature. In addition to performing first control to adjust the temperature to a lower second temperature, if the indoor air humidity is less than the target humidity, the air conditioner will be activated when the indoor air temperature rises and reaches the target temperature. The second control is performed by maintaining the air in the air conditioned room at the first temperature and adjusting the temperature.

According to the present invention, it is possible to provide an air conditioning system that can perform humidification control using a humidifier in conjunction with temperature control control using an air conditioner.

FIG. 1 is a schematic connection diagram of an air conditioning system according to Embodiment 1 of the present invention. FIG. 2 is a schematic cross-sectional view of a humidifier that constitutes the air conditioning system. FIG. 3 is a schematic functional block diagram of the system controller of the air conditioning system. FIG. 4 is a flowchart showing the air conditioning processing procedure. FIG. 5 is a flowchart showing the processing procedure in the temperature control priority control mode in the air conditioning processing procedure. FIG. 6 is a flowchart showing the processing procedure in the humidity control priority control mode in the air conditioning processing procedure.

The air conditioning system of the present invention includes an air conditioning room configured to be able to introduce air from indoors and outdoors, an air conditioner installed in the air conditioning room to temperature-condition the air in the air conditioning room, and an air conditioner installed in the air conditioning room and heated by the air conditioner. A humidifier that humidifies conditioned air, a plurality of transport fans that transport air in an air-conditioned room to a plurality of indoor spaces independent of the air-conditioned room, and a control unit that controls the air conditioner, the humidifier, and the transport fan. , is provided. Then, the control unit performs temperature control using air in the air conditioned room that has been heated to a first temperature that is higher than the target temperature by the air conditioner in order to adjust the temperature of the indoor air to the target temperature. . At that time, if the humidity of the indoor air is higher than the target humidity, and the temperature of the indoor air rises and reaches the target temperature, the air conditioner will cool the air in the air conditioned room to a temperature higher than the first temperature. In addition to performing first control to adjust the temperature to a lower second temperature, if the indoor air humidity is less than the target humidity, the air conditioner will be activated when the indoor air temperature rises and reaches the target temperature. The second control is performed by maintaining the air in the air conditioned room at the first temperature and adjusting the temperature.

According to this configuration, temperature control (first control or second control) by the air conditioner is performed in conjunction with humidification control by the humidifier, so the humidification capacity of the humidifier (humidification This makes it possible to suppress a decrease in the amount of water and stabilize the humidification performance of the air conditioning system. In other words, since air heated to the first temperature by the air conditioner is continuously introduced into the humidifier, the amount of humidification of the air in the air conditioned room can be increased compared to conventional air conditioning systems. The humidity of the air in an air-conditioned room can be efficiently made to reach the target humidity. As a result, it is possible to provide an air conditioning system that can efficiently control the temperature and humidity of a living room.

Further, in the air conditioning system of the present invention, when performing the second control, the control unit sets the amount of air conveyed to the indoor space by the conveyance fan when the temperature of the indoor air reaches the target temperature. It is preferable to reduce the first air volume to a second air volume that is smaller than the first air volume. As a result, in the second control, the amount of air transported indoors by the transport fan is reduced, so the temperature of the indoor air increases (indoor It is possible to perform humidification control by the humidifier toward the target humidity while suppressing the phenomenon in which the temperature of the air becomes higher than the target temperature.

Moreover, the air conditioning system of the present invention further includes a temperature and humidity sensor that acquires the temperature and humidity of indoor air and transmits it to the control unit. Based on the information regarding temperature and humidity from the temperature and humidity sensor, the control unit performs temperature control control for the air conditioner to adjust the indoor air temperature to the target temperature, and also controls the humidifier to adjust the temperature of the indoor air to the target temperature. Humidity control may be performed to humidify the air to a target humidity. Thereby, temperature control by the air conditioner and humidity control by the humidifier can be performed in accordance with changes in the temperature and humidity of the indoor air, so that comfort in the indoor space can be improved.

Furthermore, in the air conditioning system of the present invention, the humidifying device includes a centrifugal fan that introduces air whose temperature is controlled by the air conditioner into the device, and water that is pulverized by centrifugal crushing of the air introduced by the centrifugal fan. It is preferable to include a humidifying section that emits moisture. According to this configuration, since air is introduced into the humidifier by the centrifugal fan, the amount of humidification of the air in the air conditioned room can be adjusted without depending on the amount of air transported from the air conditioned room by the transport fan.

Embodiments of the present invention will be described below with reference to the drawings. Note that the following embodiments are examples of embodying the present invention, and do not limit the technical scope of the present invention. Furthermore, each figure described in the embodiments is a schematic diagram, and the ratio of the size and thickness of each component in each figure does not necessarily reflect the actual size ratio. .

(Embodiment 1)
First, with reference to FIG. 1, an air conditioning system 20 according to the first embodiment will be described. FIG. 1 is a schematic connection diagram of an air conditioning system 20 according to Embodiment 1 of the present invention.

The air conditioning system 20 includes a plurality of transport fans 3 (transport fans 3a, 3b), a heat exchange fan 4, a plurality of dampers 5 (dampers 5a, 5b), and a plurality of circulation ports 6 (circulation ports 6a, 6b, 6c). , 6d), a plurality of room exhaust ports 7 (room exhaust ports 7a, 7b, 7c, 7d), a plurality of room air supply ports 8 (room air supply ports 8a, 8b, 8c, 8d), and a room temperature sensor. 11 (room temperature sensors 11a, 11b, 11c, 11d), room humidity sensors 12 (room humidity sensors 12a, 12b, 12c, 12d), air conditioner (air conditioner) 13, humidifier 16, and dust collection filter. 17, an input/output terminal 19, and a system controller 14 (corresponding to an air conditioning system controller).

The air conditioning system 20 is installed in a general house 1, which is an example of a building. The general house 1 has at least one air-conditioned room 18 that is independent of the living rooms 2 in addition to a plurality of (four in this embodiment) living rooms 2 (living rooms 2a, 2b, 2c, and 2d). Here, general housing 1 (house) is a residence provided as a place for residents to live a private life, and as a general configuration, living room 2 includes a living room, dining room, bedroom, private room, children's room, etc. It will be done. Further, the living room provided by the air conditioning system 20 may include a toilet, bathroom, washroom, dressing room, etc.

Here, in the living room 2a, a circulation port 6a, a living room exhaust port 7a, a living room air supply port 8a, a living room temperature sensor 11a, a living room humidity sensor 12a, a system controller 14, and an input/output terminal 19 are installed. Further, the living room 2b is provided with a circulation port 6b, a living room exhaust port 7b, a living room air supply port 8b, a living room temperature sensor 11b, and a living room humidity sensor 12b. Further, the living room 2c is provided with a circulation port 6c, a living room exhaust port 7c, a living room air supply port 8c, a living room temperature sensor 11c, and a living room humidity sensor 12c. Further, the living room 2d is provided with a circulation port 6d, a living room exhaust port 7d, a living room air supply port 8d, a living room temperature sensor 11d, and a living room humidity sensor 12d.

On the other hand, in the air-conditioned room 18, a transport fan 3a, a transport fan 3b, a damper 5a, a damper 5b, an air conditioner 13, a dust filter 17, and a humidifier 16 are installed. More specifically, from the upstream side of the air flow path flowing in the air conditioned room 18, the air conditioner 13, the dust filter 17, the humidifier 16, the conveyance fan 3 (conveyance fans 3a, 3b), the damper 5 (damper 5a, They are arranged in the order of 5b).

In the air-conditioned room 18, the air (indoor air) conveyed from each living room 2 through the circulation port 6 and the outside air (outdoor air) taken in and heat exchanged by the heat exchange fan 4 are mixed. The temperature and humidity of the air in the air-conditioned room 18 are controlled by an air conditioner 13 and a humidifier 16 provided in the air-conditioned room 18, that is, the air is conditioned to generate air to be conveyed to the living room 2. The air conditioned in the air-conditioned room 18 is conveyed to each living room 2 by the conveyance fan 3. Here, the air-conditioned room 18 means a space with a certain size in which the air conditioner 13, humidifier 16, dust filter 17, etc. can be placed and where the air conditioning of each living room 2 can be controlled. It is not intended and does not basically mean a room where a resident stays.

The air in each living room 2 is transported to the air conditioning room 18 through the circulation port 6, and is also heat-exchanged through the heat exchange fan 4 through the living room exhaust port 7 before being discharged outdoors. The air conditioning system 20 performs type 1 ventilation by drawing outside air (outdoor air) into the room while exhausting inside air (indoor air) from each living room 2 using the heat exchange fan 4. The ventilation air volume of the heat exchange fan 4 is configured to be settable in multiple stages, and the ventilation air volume is set to satisfy the required ventilation volume stipulated by law.

The heat exchange fan 4 is configured to have an air supply fan and an exhaust fan (not shown) inside, and by operating each fan, the heat exchanger fan 4 creates a gap between inside air (indoor air) and outside air (outdoor air). Ventilate while exchanging heat. At this time, the heat exchange fan 4 conveys the heat-exchanged outside air to the air conditioning room 18.

The transport fan 3 is provided on the wall of the air conditioned room 18 (the wall on the bottom side). The air in the air-conditioned room 18 is then conveyed to the living room 2 from the living room air supply port 8 by the feeding fan 3 via the feeding duct. More specifically, the air in the air-conditioned room 18 is transported by the transport fan 3a to a living room 2a and a living room 2b located on the first floor of the general residence 1, and is also transported by the transport fan 3b to a living room located on the second floor of the general residence 1. 2c and living room 2d. Note that the conveyance ducts connected to the living room air supply ports 8 of each living room 2 are provided independently.

When the damper 5 transports air from the transport fan 3 to each living room 2, the amount of air blown to each living room 2 is adjusted by adjusting the degree of opening of the damper 5. More specifically, the damper 5a adjusts the amount of air blown to the living room 2a and the living room 2b located on the first floor, and the damper 5b adjusts the amount of air blown to the living room 2c and the living room 2d located on the second floor.

A part of the air in each living room 2 (living room 2a to 2d) is transported to the air conditioned room 18 via a circulation duct by the corresponding circulation port 6 (circulation port 6a to 6d). Here, the air conveyed by the circulation port 6 is the amount of air conveyed from the air conditioning room 18 to each room 2 by the transfer fan 3 (air supply air amount), and the air is exhausted outdoors from the room exhaust port 7 by the heat exchange fan 4. The difference in air volume (exhaust air volume) is naturally transported to the air conditioned room 18 as circulating air. Note that the circulation ducts connecting the air-conditioned room 18 and each living room 2 may be provided independently, but a plurality of tributary ducts that are part of the circulation duct may be joined from the middle to form one circulation duct. After integration, it may be connected to the air conditioning room 18.

As described above, each circulation port 6 (circulation port 6a to 6d) is an opening for conveying indoor air from each living room 2 (living room 2a to 2d) to the air conditioned room 18.

Each living room exhaust port 7 (living room exhaust port 7a to 7d) is an opening for conveying indoor air from each living room 2 (living room 2a to 2d) to the heat exchange fan 4, as described above.

As described above, each living room air supply port 8 (residential room air supply port 8a to 8d) is an opening for conveying the air in the air conditioned room 18 from the air conditioned room 18 to each living room 2 (living room 2a to 2d).

The room temperature sensor 11 (room temperature sensor 11a to 11d) is a sensor that acquires the room temperature (indoor temperature) of each corresponding room 2 (room 2a to 2d) and transmits it to the system controller 14.

The living room humidity sensor 12 (the living room humidity sensor 12a to 12d) is a sensor that acquires the living room humidity (indoor humidity) of each of the corresponding living room 2 (the living room 2a to 2d) and transmits it to the system controller 14.

The air conditioner 13 corresponds to an air conditioner, and controls the air conditioning of the air conditioned room 18. The air conditioner 13 cools or heats the air in the air conditioned room 18 so that the temperature of the air in the air conditioned room 18 reaches a set temperature (air conditioned room target temperature). Here, the required heat amount is calculated from the temperature difference between the target temperature (occupied room target temperature) set by the user and the occupied room temperature, and the set temperature is set to a temperature based on the result. In this embodiment, the set temperature is set to at least a first temperature higher than the target temperature in order to more quickly adjust the temperature of the air in each living room 2 to the target temperature.

The humidifier 16 is located on the downstream side of the air conditioner 13 in the air-conditioned room 18, and the humidity of the air in each living room 2 (room humidity) is lower than the target humidity (room target humidity) set by the user. In this case, the air in the air conditioned room 18 is humidified so that the humidity becomes the target humidity. Furthermore, although the humidity treated here is expressed as relative humidity, it may also be treated as absolute humidity through a predetermined conversion process. In this case, it is preferable that the entire operation of the air conditioning system 20, including the humidity of the living room 2, be treated as absolute humidity.

The dust filter 17 is a dust filter that collects particles floating in the air introduced into the air conditioned room 18. The dust filter 17 cleans the air supplied indoors by the transport fan 3 by collecting particles contained in the air transported into the air conditioned room 18 through the circulation port 6.

The system controller 14 is a controller that controls the entire air conditioning system 20. The system controller 14 is communicably connected to each of the heat exchange fan 4, the transfer fan 3, the damper 5, the room temperature sensor 11, the room humidity sensor 12, the air conditioner 13, and the humidifier 16 via wireless communication. Note that the system controller 14 corresponds to a "control unit" in the claims.

The system controller 14 also monitors the room temperature and room humidity of each room 2 acquired by the room temperature sensor 11 and the room humidity sensor 12, and the target temperature (room target temperature) and target temperature set for each room 2a to 2d. The air volume of the air conditioner 13 as an air conditioner, the humidifier 16, the transport fan 3, and the opening degree of the damper 5 are controlled according to the humidity (target humidity of the living room) and the like. Note that the air volume of the transport fan 3 may be controlled individually for each fan.

Thereby, the air conditioned in the air-conditioned room 18 is conveyed to each living room 2 at the air volume set for each conveyance fan 3 and each damper 5. Therefore, the living room temperature and living room humidity of each living room 2 are controlled to become the target temperature (living room target temperature) and the target humidity (living room target humidity).

Here, the system controller 14, the heat exchange fan 4, the transfer fan 3, the damper 5, the room temperature sensor 11, the room humidity sensor 12, the air conditioner 13, and the humidifier 16 are connected by wireless communication. Complex wiring work can be made unnecessary. However, all of these or a part of these with the system controller 14 may be configured to be communicable through wired communication.

The input/output terminal 19 is communicably connected to the system controller 14 by wireless communication, and accepts input of information necessary for constructing the air conditioning system 20 and stores it in the system controller 14, and inputs the status of the air conditioning system 20 into the system. It is acquired from the controller 14 and displayed. Examples of the input/output terminal 19 include portable information terminals such as mobile phones, smartphones, and tablets.

Note that the input/output terminal 19 does not necessarily need to be connected to the system controller 14 through wireless communication, and may be communicably connected to the system controller 14 through wired communication. In this case, the input/output terminal 19 may be realized by, for example, a wall-mounted remote controller.

Next, the configuration of the humidifying device 16 will be described with reference to FIG. 2. FIG. 2 is a schematic cross-sectional view of the humidifier 16 that constitutes the air conditioning system 20.

The humidifier 16 is located downstream of the air conditioner 13 in the air conditioner 18 and is a device for humidifying the air in the air conditioner 18 by centrifugal water crushing. The humidifier 16 includes an inlet 31 that sucks air in the air-conditioned room 18, an outlet 32 that blows out humidified air into the air-conditioned room 18, and an air path provided between the inlet 31 and the outlet 32. , and a liquid atomization chamber 33 provided in this air path.

The suction port 31 is provided on the top surface of a casing that constitutes the outer frame of the humidifier 16, and the air outlet 32 is provided on the side surface of the casing. The liquid atomization chamber 33 is the main part of the humidifier 16, and is where water is atomized using a centrifugal water crushing method.

Specifically, the humidifying device 16 includes a rotary motor 34, a rotary shaft 35 rotated by the rotary motor 34, a centrifugal fan 36, a cylindrical water pumping pipe 37, a water storage section 40, a first eliminator 41, and a first eliminator 41. and two eliminators 42.

The pumping pipe 37 is fixed to the rotating shaft 35 inside the liquid atomization chamber 33, and rotates in accordance with the rotation of the rotating shaft 35, pumping up water from a circular pumping port provided vertically downward. More specifically, the pumping pipe 37 has a hollow structure in the shape of an inverted cone, and has a circular pumping port vertically downward, and a pipe located above the pumping pipe 37 at the center of the top surface of the inverted conical shape. , a rotating shaft 35 arranged vertically is fixed. By connecting the rotating shaft 35 to the rotating motor 34 located vertically above the liquid atomization chamber 33, the rotational motion of the rotating motor 34 is transmitted to the water pumping pipe 37 through the rotating shaft 35, and the water pumping pipe 37 rotates. do.

The lift pipe 37 includes a plurality of rotary plates 38 formed on the top surface side of the inverted conical shape so as to protrude outward from the outer surface of the lift pipe 37. The plurality of rotary plates 38 are formed so as to protrude outward from the outer surface of the water lift pipe 37 with a predetermined interval provided between the rotary plates 38 that are vertically adjacent to each other in the axial direction of the rotary shaft 35 . Since the rotating plate 38 rotates together with the water pumping pipe 37, it is preferable that the rotating plate 38 has a horizontal disk shape coaxial with the rotating shaft 35. Note that the number of rotary plates 38 is appropriately set according to the target performance or the dimensions of the water pump 37.

Further, a plurality of openings 39 are provided in the wall surface of the water pumping pipe 37, which penetrate the wall surface of the water pumping pipe 37. Each of the plurality of openings 39 is provided at a position that communicates the inside of the water lift pipe 37 with the upper surface of the rotary plate 38 formed so as to protrude outward from the outer surface of the water lift pipe 37.

The centrifugal fan 36 is disposed vertically above the water pump 37 and is a fan for drawing air into the apparatus from the air conditioning chamber 18. The centrifugal fan 36 is fixed to the rotating shaft 35 like the water pump 37, and introduces air into the liquid atomization chamber 33 by rotating in accordance with the rotation of the rotating shaft 35.

The water storage unit 40 is located vertically below the water pump 37 and stores water that the water pump 37 pumps from the water pumping port. The depth of the water storage section 40 is designed to be such that a part of the lower part of the pumping pipe 37, for example, about one-third to one-hundredth of the conical height of the pumping pipe 37, is immersed therein. . This depth can be designed according to the required pumping volume. Moreover, the bottom surface of the water storage part 40 is formed in a mortar shape toward the water pumping port. Water is supplied to the water storage section 40 by a water supply section (not shown).

The first eliminator 41 is a porous body through which air can flow, and is provided on the side of the liquid atomization chamber 33 (the outer periphery in the centrifugal direction), and is arranged so that air can flow in the centrifugal direction. In the first eliminator 41, the water droplets discharged from the opening 39 of the water pump 37 collide with each other to atomize the water droplets and collect water droplets from the water included in the air passing through the liquid atomization chamber 33. do. As a result, the air flowing through the humidifier 16 contains only vaporized water.

The second eliminator 42 is provided on the downstream side of the first eliminator 41 and is arranged so that air flows vertically upward. The first eliminator 41 is also a porous body through which air can flow, and when the air that has passed through the first eliminator 41 collides with it, it collects water droplets from the water contained in the air that has passed through the first eliminator 41. do. Thereby, by doubly collecting the miniaturized water droplets with the two eliminators, it is possible to collect water droplets with a large particle size with higher accuracy.

Next, the operating principle of humidification (water atomization) in the humidifier 16 will be explained.

Next, with reference to FIG. 2, the operating principle of humidification (water atomization) in the humidifier 16 will be explained. In addition, in FIG. 2, the flow of air and the flow of water within the apparatus are shown by arrows, respectively.

First, when the operation of the humidifying device 16 is started, the rotating shaft 35 is rotated by the rotary motor 34 at a first rotation speed R1, and the centrifugal fan 36 starts sucking air from the air conditioned room 18 through the suction port 31. Then, the water pump 37 rotates in accordance with the rotation of the rotating shaft 35 at the first rotation speed R1. Then, the water stored in the water storage section 40 is pumped up by the water pump 37 due to the centrifugal force generated by the rotation, as shown by the flow of water indicated by the broken line arrow. Here, the first rotation speed R1 of the rotary motor 11 (water pump 37) is set, for example, between 2000 rpm and 5000 rpm, depending on the amount of air blown and the amount of humidification of the air. Since the water pumping pipe 37 has an inverted conical hollow structure, the water pumped up by rotation passes along the inner wall of the water pumping pipe 37 and is pumped upward. Then, the pumped water is discharged in the centrifugal direction from the opening 39 of the water pumping pipe 37 along the rotating plate 38, and is scattered as water droplets.

The water droplets scattered from the rotary plate 38 fly through a space (liquid atomization chamber 33) surrounded by the first eliminator 41, collide with the first eliminator 41, and become atomized. On the other hand, the air passing through the liquid atomization chamber 33 moves toward the outer periphery of the first eliminator 41 while containing the water crushed (refined) by the first eliminator 41, as shown by the air flow indicated by the solid line arrow. . Then, in the process of the air flowing through the air path from the first eliminator 41 to the second eliminator 42, a vortex of airflow is generated and water and air mix. The air containing water then passes through the second eliminator 42. Thereby, the humidifier 16 can humidify the air sucked in through the suction port 31 and blow out the humidified air through the blowout port 32.

Note that the liquid to be atomized may be other than water, and may be, for example, a liquid such as hypochlorous acid water that has sterilizing or deodorizing properties.

Next, each function of the system controller 14 will be explained with reference to FIG. 3. FIG. 3 is a schematic functional block diagram of the system controller 14 of the air conditioning system 20.

As shown in FIG. 3, the system controller 14 includes a room target temperature/humidity acquisition section 51, an air conditioning control section 52, an air conditioner control section 53, a rotary motor control section 54, an air volume control section 55, and a storage section 56.

The room target temperature/humidity acquisition unit 51 acquires the room target temperature and room target humidity (hereinafter also referred to as the room target temperature/humidity) that are commonly set for the entire living room 2 through the input/output terminal 19 . The room target temperature is set as a predetermined temperature range defined by the minimum temperature as the lower limit and the maximum temperature as the upper limit. The room target humidity is set as a predetermined humidity range defined by the minimum humidity as the lower limit and the maximum humidity as the upper limit. Here, a temperature equal to or higher than the target room temperature means a temperature equal to or higher than the upper limit maximum temperature, and a temperature lower than the target room temperature means a temperature lower than the lowest minimum temperature. The same applies to the target room humidity. Note that in this embodiment, the target room temperature and target humidity can be set by the user, but they may be set as fixed values in the air conditioning system 20 in advance. The maximum temperature and minimum temperature, maximum humidity, and minimum humidity acquired by the room target temperature/humidity acquisition unit 51 or set in advance are stored in the storage unit 56.

The air conditioning control section 52 includes a temperature/humidity difference calculation section 57 and a control condition determination section 58.

The temperature/humidity difference calculation unit 57 calculates the difference (temperature difference) between the target room temperature acquired by the target room temperature/humidity acquisition unit 51 or set in advance and the room temperature acquired by the room temperature sensor 11, and the target room temperature. The difference (humidity difference) between the room target humidity acquired by the humidity acquisition unit 51 or set in advance and the room humidity acquired by the room humidity sensor 12 is calculated for each room 2.

The control condition determination unit 58 determines control conditions for the air conditioner 13, humidifier 16, conveyance fan 3, and damper 5 based on the temperature difference and humidity difference calculated for each room 2 by the temperature/humidity difference calculation unit 57. do.

In other words, the air conditioning control unit 52 uses the information regarding the target room temperature and humidity from the target room temperature and humidity acquisition unit 51 and the information regarding the room temperature and humidity from each sensor (the room temperature sensor 11 and the room humidity sensor 12). Based on the information regarding the difference and the humidity difference, the outputs of the air conditioner 13, humidifier 16, conveyance fan 3, and damper 5 are determined.

The air conditioner control unit 53 controls the operation mode, blowing temperature, and air flow rate of the air conditioner 13 in the air conditioned room 18 based on the control method determined by the air conditioning control unit 52.

The rotary motor controller 54 controls the humidifier installed in the air conditioned room 18 based on the control conditions determined by the air conditioning controller 52 by controlling the rotation speed of the rotary motor 34 provided in the humidifier 16. 16 humidification amount is controlled.

The air volume control unit 55 controls the air volume of the transport fan 3 provided corresponding to the living room 2 and the opening degree of the damper 5 based on the control conditions determined by the air conditioning control unit 52.

The storage unit 56 is a so-called memory that stores a predetermined temperature range, that is, the maximum temperature and minimum temperature, and a humidity range, that is, the maximum humidity and the minimum humidity, that are acquired by the room target temperature and humidity acquisition unit 51 or set in advance. be. Furthermore, the storage unit 56 is also used when it is necessary to store information such as numerical values for control by the system controller 14.

Next, the air conditioning process executed by the system controller 14 will be described with reference to FIGS. 4 to 6. FIG. 4 is a flowchart showing the air conditioning processing procedure. FIG. 5 is a flowchart showing the processing procedure in the temperature control priority control mode in the air conditioning processing procedure. FIG. 6 is a flowchart showing the processing procedure in the humidity control priority control mode in the air conditioning processing procedure. Here, since air conditioning processing is assumed in winter in Japan, in the air conditioning system 20, the air conditioner 13 increases the temperature of the air in the living room 2, and the humidifier 16 humidifies the air.

In the air conditioning system 20, like a general whole-house air conditioning system, the heat exchange fan 4 is constantly performing ventilation operation, and even when air conditioning is not being performed, the transfer fan 3 is set to the third air flow rate. The damper 5 is set at the third opening degree and blows air (step S11). Here, the third airflow rate is the airflow rate that satisfies the required ventilation amount stipulated by law in a residence, and the air supplied into the air conditioned room 18 by the heat exchange fan 4 is conveyed to the living room 2 by the conveyance fan 3. do. Further, the third opening degree is, for example, set to fully open. Note that when only the heat exchange fan 4 is operating, the air conditioner 13 and the humidifier 16 are not operating.

When the user executes the air conditioning process, first, the system controller 14 acquires the room target temperature and humidity (the room target temperature and the room target humidity) set on the input/output terminal 19, and stores it in the storage unit 56 (step S12 ). Here, the room target temperature and humidity is the temperature and humidity that the user feels comfortable with, and is the temperature and humidity that is common to all rooms.

After acquiring the room target temperature and humidity, the air conditioning control unit 52 acquires information regarding the room temperature and humidity from the room temperature sensor 11 and room humidity sensor 12 installed in each room 2 (step S13). Subsequently, the air conditioning control unit 52 uses the temperature/humidity difference calculation unit 57 to calculate the temperature difference and humidity difference with respect to the target from the acquired information regarding the target room temperature and humidity and the information regarding the room temperature humidity (step S14).

Then, the control condition determination unit 58 specifies the air conditioned room target temperature and humidity (air conditioned room target temperature and air conditioned room target humidity) for the air in the air conditioned room 18 based on the calculated temperature difference and humidity difference (step S15). Here, the air conditioned room target temperature is set to a first temperature that is higher than the living room target temperature, and the air conditioned room target humidity is set to a first humidity that is higher than the living room target humidity.

Then, the air conditioning control unit 52 determines control conditions for the air conditioner 13, humidifier 16, conveyance fan 3, and damper 5 based on the specified air conditioned room target temperature and humidity, and causes each to be executed (step S16).

Specifically, the air conditioner control unit 53 starts the operation of the air conditioner 13 based on the control conditions from the air conditioning control unit 52, so that the temperature of the air in the air conditioned room 18 reaches the air conditioned room target temperature (the first temperature). temperature). The rotary motor control section 54 starts the rotation operation of the rotary motor 34 based on the control conditions from the air conditioning control section 52, so that the humidity of the air in the air conditioned room 18 becomes the air conditioned room target humidity (first humidity). , rotate at a first rotation speed R1 (2000 rpm to 5000 rpm). The air volume control unit 55 changes the air volume of the transport fan 3 and the opening degree of the damper 5 to a first air volume and a first opening degree, respectively, based on the control conditions from the air conditioning control unit 52. Note that the first opening degree is set according to the temperature difference between the temperature of the air in the living room 2 and the living room target temperature, and for example, if the temperature difference is large, it is set to widen, and if the temperature difference is small, it is set to be narrowed. It is set as follows.

Then, during air conditioning operation, if a predetermined time T has elapsed starting from the step where the control conditions were changed (here, step S16) (Yes in step S17), the air conditioning control unit 52 controls each room 2. New information regarding room temperature and humidity is acquired from the installed room temperature sensor 11 and room humidity sensor 12 (step S18). On the other hand, if the predetermined time T has not elapsed (No in step S17), the air conditioning control unit 52 continues the air conditioning operation under the same control conditions (returns to step S17). Here, the predetermined time T is a cycle time for acquiring room temperature humidity in the room temperature sensor 11 and room humidity sensor 12, and is set to, for example, 5 minutes.

Next, the air conditioning control unit 52 determines whether or not the humidity of the acquired room temperature is equal to or higher than the target humidity of the room (step S19). As a result, if the humidity in the room is equal to or higher than the target humidity in the room, the air conditioning control unit 52 shifts the air conditioning operation to the temperature control priority control mode M1 (step S30). On the other hand, if the room temperature has not reached the room target temperature, the air conditioning control unit 52 shifts the air conditioning operation to the humidity control priority control mode M2 (step S40).

Here, the temperature control priority control mode M1 is a mode in which temperature control by the air conditioner 13 is performed without being influenced by humidity control by the humidifier 16. Humidity control priority control mode M2 is a mode in which temperature control by the air conditioner 13 is executed under the influence of humidity control by the humidifier 16.

Subsequently, in the temperature control priority control mode M1, the air conditioning control unit 52 determines whether or not the room temperature is equal to or higher than the room target temperature among the acquired room temperature humidity (step S31). As a result, if the living room temperature is equal to or higher than the living room target temperature (Yes in step S31), the air conditioning control unit 52 changes the control conditions of the air conditioner 13 and causes the control condition to be executed. Specifically, the air conditioner control unit 53 adjusts the temperature of the air in the air conditioned room 18 to a new air conditioned room target temperature (second temperature) based on the new control conditions from the air conditioning control unit 52. Execute temperature control. Then, the next step S34 is executed.

Here, the second temperature is lower than the first temperature. It is preferable that the second temperature is a temperature necessary to maintain the room temperature within the room target range. Note that changing the temperature from the first temperature to the second temperature is achieved, for example, by stopping the temperature adjustment operation of the air conditioner 13.

On the other hand, if the living room temperature is not equal to or higher than the living room target temperature (No in step S31), the air conditioning control unit 52 does not change the control conditions of the air conditioner 13, and the air conditioner control unit 53 controls the air conditioner 13. The operation of adjusting the temperature to the first temperature is maintained and executed. Then, the next step S34 is executed.

Subsequently, in step S34, the air conditioning control unit 52 determines whether or not the room humidity exceeds the room target humidity among the acquired room temperature humidity. As a result, if the humidity in the room exceeds the target humidity in the room (Yes in step S34), the air conditioning control unit 52 changes the control conditions for the humidifier 16 and causes the humidifier 16 to execute the change. Specifically, the rotary motor control unit 54 changes the rotational operation of the rotary motor 34 based on the new control conditions from the air conditioning control unit 52, so that the humidity of the air in the air conditioned room 18 changes to the new air conditioned room target humidity. (second humidity), rotate at a second rotation speed R2 (0 rpm to 2000 rpm). The air volume control unit 55 maintains the air volume of the transfer fan 3 and the opening degree of the damper 5 at the first air volume and the first opening degree based on the new control conditions from the air conditioning control unit 52 ( Step S35). Then, the process returns to step S17. Note that in step S17, the predetermined time T is measured starting from the step in which the control conditions are changed (here, step S35).

On the other hand, if the humidity in the room does not exceed the target humidity in the room (No in step S34), the air conditioning control section 52 does not change the control conditions for the humidifier 16, and the rotary motor control section 54 controls the rotation motor. 34 rotational motion (first rotational speed R1) is maintained. Further, the air volume control unit 55 maintains the air volume of the transport fan 3 and the opening degree of the damper 5 at the first air volume and the first opening degree (step S36). Then, the process returns to step S17. Note that in step S17, the predetermined time T is measured starting from the step in which the control conditions are changed (here, step S36).

In the temperature adjustment priority control mode M1, the air conditioning operation is performed as described above.

Next, in the humidity adjustment priority control mode M2, based on the determination in step S19, the control conditions of the humidifier 16 are not changed, and the operation of adjusting the humidity to the first humidity is maintained and executed. Specifically, the rotary motor control unit 54 sets the first rotation speed R1 (2000 rpm to 5000 rpm) so that the humidity of the air in the air conditioned room 18 becomes the first humidity without changing the rotational operation of the rotary motor 34. (step S41).

Next, the air conditioning control unit 52 determines whether or not the room temperature is equal to or higher than the room target temperature among the room temperature humidity acquired in step S18 (step S42). As a result, if the living room temperature is equal to or higher than the living room target temperature (Yes in step S42), the air conditioning control unit 52 does not change the control conditions of the air conditioner 13, and the air conditioner control unit 53 13 is maintained and executed to adjust the temperature to the first temperature. Then, the air volume control unit 55 changes the air volume of the transport fan 3 and the opening degree of the damper 5 to the second air volume and second opening degree (step S43). Note that the processes in step S42 and step S44 correspond to "second control" in the claims.

Here, the second air volume is smaller than the first air volume. This makes it difficult for the air inside the air-conditioned room 18 that has been temperature-controlled to the first temperature to be discharged outside the air-conditioned room 18, so that the amount of humidification of the air inside the air-conditioned room 18 can be increased. Further, like the first opening degree, the second opening degree is set according to the temperature difference between the temperature of the air in the living room 2 and the living room target temperature, and for example, if the temperature difference is large, it is set to widen, If the temperature difference is small, the setting is made narrower. Then, the process returns to step S17. Note that in step S17, the predetermined time T is measured starting from the step in which the control conditions are changed (here, step S43).

On the other hand, if the room temperature is not equal to or higher than the room target temperature (No in step S42), the air conditioning control unit 52 does not change the control conditions of the air conditioner 13, and the air conditioner control unit 53 controls the air conditioner 13. The operation of adjusting the temperature to the first temperature is maintained and executed. Then, the air volume control unit 55 maintains the air volume of the transport fan 3 and the opening degree of the damper 5 at the first air volume and the first opening degree. Then, the process returns to step S17. Note that in step S17, the predetermined time T is measured starting from the step in which the control conditions are changed (here, step S44).

In the humidity control priority control mode M2, the air conditioning operation is performed as described above.

The air conditioning system 20 according to the present embodiment controls the room temperature and humidity in the room 2 to reach the target room temperature and humidity through the series of processes described above.

When the air conditioning system 20 is temperature-controlled like a conventional central air conditioning system, if the room temperature in the room 2 reaches the room target (the room target temperature) before the room humidity, in order to avoid unnecessary energy consumption, , temperature control is performed such as stopping the air conditioner 13 or lowering the amount of heating. As a result, the temperature of the air in the air conditioned room 18 decreases from the first temperature. In the present embodiment, the air conditioner 13 adjusts the temperature to the second temperature, which is lower than the first temperature, in such a situation where the temperature decreases. As a result, in the humidifier, the amount of humidification of the air in the air-conditioned room is reduced, and the time required for the humidity of the air in the living room 2 to reach the living room target humidity becomes longer.

On the other hand, in the air conditioning system 20 according to the present embodiment, even if the room temperature in the room 2 reaches the room target (the room target temperature) before the room humidity, the air conditioner 13 is stopped or the heating amount is reduced. Temperature control is maintained at the first temperature without performing any temperature control. Thereby, it is possible to suppress the amount of humidification of the air in the air conditioned room 18 from decreasing, and it is possible to efficiently make the humidity of the air in the air conditioned room 18 reach the room target humidity.

As described above, according to the air conditioning system 20 according to the first embodiment, the following effects can be enjoyed.

(1) In the air conditioning system 20, in order to adjust the temperature of the air in the living room 2 to the living room target temperature, the air conditioner 13 raises the temperature to a first temperature (air conditioned room target temperature) that is higher than the living room target temperature. Temperature control is performed using the air in the air conditioned room 18. At that time, if the humidity of the air in the living room 2 is equal to or higher than the living room target humidity, when the temperature of the air in the living room 2 rises and reaches the living room target temperature, the air conditioner 13 controls the air in the air conditioned room 18. At the same time, when the humidity of the air in living room 2 is less than the living room target humidity (when it is not higher than the living room target humidity), When the temperature of the air in the room 2 rises and reaches the target room temperature, the air conditioner 13 performs second control to maintain the air in the air conditioned room 18 at the first temperature.

As a result, the temperature control (first control or second control) by the air conditioner 13 is performed in conjunction with the humidification control by the humidifier 16, so that the humidification capacity of the humidifier 16 ( The amount of humidification) can be suppressed, and the humidification performance of the air conditioning system 20 can be stabilized. That is, since air heated to the first temperature by the air conditioner 13 is continuously introduced into the humidifier 16, the amount of humidification of the air in the air conditioned room 18 is increased compared to a conventional air conditioning system. This allows the humidity of the air in the air conditioned room 18 to efficiently reach the air conditioned room target humidity. As a result, the air conditioning system 20 can efficiently control the temperature and humidity of the living room 2.

(2) In the air conditioning system 20, when performing the second control, the amount of air conveyed to the indoor space by the conveyance fan 3 is changed to the second control when the temperature of the air in the living room 2 reaches the target room temperature. The airflow rate is reduced from one airflow rate to a second airflow rate that is smaller than the first airflow rate. As a result, in the second control, the amount of air conveyed to the living room 2 by the conveying fan 3 is reduced, so the temperature of the air in the living room 2 is reduced as the temperature of the air in the air conditioned room 18 is maintained at the first temperature. Humidification control by the humidifier 16 can be performed toward the target room humidity while suppressing an increase in the temperature of the air in the room 2 (a phenomenon in which the temperature of the air in the room 2 becomes higher than the target room temperature).

(3) The air conditioning system 20 includes a room temperature sensor 11 and a room humidity sensor 12 that acquire the temperature and humidity of the air in the room 2 and send it to the system controller 14, and the system controller 14 has a room temperature sensor 11 and a room humidity sensor. Based on the information regarding the room temperature humidity from 12, the air conditioner 13 performs temperature control control to adjust the temperature of the air in the room 2 to the room target temperature, and the humidifier 16 controls the temperature of the air in the room 2. The system was configured to perform humidity control to adjust the humidity to the target humidity in the living room. Thereby, temperature control by the air conditioner 13 and humidity control by the humidifier 16 can be performed in accordance with changes in the temperature and humidity of the air in the living room 2, so that comfort in the indoor space can be improved.

(4) In the air conditioning system 20, the humidifying device 16 is equipped with a centrifugal fan 36 that introduces air whose temperature has been controlled by the air conditioner 13 into the device, and the air introduced by the centrifugal fan 36 is pulverized by centrifugal crushing. The structure includes a humidifying section (liquid atomization chamber 33) that contains and releases water. As a result, air is introduced into the humidifier 16 by the centrifugal fan 36, so the amount of humidification of the air in the air conditioner 18 can be adjusted without depending on the amount of air conveyed from the air conditioner 18 by the transport fan 3. can.

Although the present invention has been described above based on the embodiments, the present invention is not limited to the above embodiments, and various improvements and modifications can be made without departing from the spirit of the present invention. This can be easily inferred. For example, the numerical values listed in the above embodiment are merely examples, and it is of course possible to employ other numerical values.

In the air conditioning system 20 according to the present embodiment, in order to adjust the temperature of the air in the living room 2 to the living room target temperature, the air conditioner 13 adjusts the air in the air conditioned room 18 to a first temperature higher than the living room target temperature. Although temperature control was performed using air heated to (air conditioned room target temperature), the present invention is not limited to this. For example, the system controller 14 may control the air-conditioned room target temperature and humidity (particularly, the air-conditioned room target temperature) to match the living room target temperature and humidity (particularly, the living room target temperature). Even in this case, similar effects can be obtained.

In addition, in the air conditioning system 20 according to the present embodiment, an air conditioning room temperature sensor that detects the temperature of the air in the air conditioning room 18 and an air conditioning room humidity sensor that detects the humidity of the air in the air conditioning room 18 are installed in the air conditioning room 18. may be provided. Thereby, temperature and humidity control can be performed more accurately and reliably in order to bring the temperature and humidity in the air conditioned room 18 to the set air conditioner room temperature and humidity.

Furthermore, in the air conditioning system 20 according to the present embodiment, even if the room temperature in the room 2 reaches the room target (the room target temperature) before the room humidity, the air conditioner 13 is stopped or the heating amount is reduced. However, if the room temperature exceeds the upper limit of the room target temperature, the air conditioner 13 is stopped or the heating is stopped. It is preferable to perform temperature control to lower the amount of air (control to adjust the temperature of the air in the air conditioned room 18 to a second temperature that is lower than the first temperature). Thereby, it is possible to suppress a decrease in comfort in the indoor space.

Further, in this embodiment, although the living room is shown as a living room, the living room does not necessarily have to be occupied by a person and can be regarded as one space. In other words, if a hallway or kitchen is separated to some extent, it can be considered as one space, and falls under one living room.

Further, the air conditioning system 20 according to the present embodiment is applicable to a single-family house or a complex housing such as an apartment building. However, when the air conditioning system 20 is applied to a complex house, one system corresponds to each household, and each household does not have one room.

INDUSTRIAL APPLICABILITY The air conditioning system according to the present invention is useful as one capable of efficiently controlling the air conditioning of air supplied to a plurality of spaces (living rooms) and the like.

1 General house 2, 2a, 2b, 2c, 2d Living room 3, 3a, 3b Transfer fan 4 Heat exchange fan 5, 5a, 5b Damper 6, 6a, 6b, 6c, 6d Circulation port 7, 7a, 7b, 7c, 7d Living room exhaust ports 8, 8a, 8b, 8c, 8d Living room air supply ports 11, 11a, 11b, 11c, 11d Living room temperature sensor 12, 12a, 12b, 12c, 12d Living room humidity sensor 13 Air conditioner 14 System controller 16 Humidifier 17 Dust collection filter 18 Air conditioning room 19 Input/output terminal 20 Air conditioning system 31 Suction port 32 Outlet port 33 Liquid atomization chamber 34 Rotating motor 35 Rotating shaft 36 Centrifugal fan 37 Lifting pipe 38 Rotating plate 39 Opening 40 Water storage section 41 First eliminator 42 Second eliminator 51 Room target temperature/humidity acquisition unit 52 Air conditioning control unit 53 Air conditioner control unit 54 Rotating motor control unit 55 Air volume control unit 56 Storage unit 57 Temperature/humidity difference calculation unit 58 Control condition determination unit

Claims (4)

An air-conditioned room configured to allow air to be introduced from outside,
an air conditioner installed in the air conditioning room and temperature-conditioning the air in the air conditioning room;
a humidifier installed in the air conditioning room and humidifying the air temperature-controlled by the air conditioner;
a plurality of transport fans that transport air from the air conditioning room to a plurality of indoor spaces independent of the air conditioning room;
a control unit that controls the air conditioner, the humidifier, and the transport fan;
Equipped with
The control unit performs temperature control using air in the air conditioned room that has been heated to a first temperature higher than the target temperature by the air conditioner in order to adjust the temperature of indoor air to a target temperature. When performing this, if the humidity of the indoor air is equal to or higher than the target humidity, and the temperature of the indoor air rises and reaches the target temperature, the air conditioner cools the air in the air conditioned room to the A first control is performed to adjust the temperature to a second temperature that is lower than the first temperature, and if the humidity of the indoor air is less than the target humidity, the temperature of the indoor air increases. The air conditioning system is characterized in that when the target temperature is reached, the air conditioner performs second control to maintain and temperature-regulate the air in the air conditioned room at the first temperature. When performing the second control, the control unit controls the amount of air conveyed to the indoor space by the conveyance fan to the first level that was set when the temperature of the indoor air reaches the target temperature. The air conditioning system according to claim 1, wherein the air volume is reduced to a second air volume that is smaller than the first air volume. further comprising a temperature and humidity sensor that acquires temperature and humidity of the indoor air and transmits it to the control unit,
The control unit performs temperature adjustment control on the air conditioner to adjust the temperature of the indoor air to the target temperature based on information regarding temperature and humidity from the temperature and humidity sensor, and controls the humidifier on the air conditioner to adjust the temperature of the indoor air to the target temperature. The air conditioning system according to claim 1 or 2, wherein humidity control is performed to humidify the indoor air to the target humidity. The humidifying device includes a centrifugal fan that introduces air whose temperature has been controlled by the air conditioner into the device, and a humidifying section that impregnates the air introduced by the centrifugal fan with water that has been made fine by centrifugal crushing and releases it. The air conditioning system according to any one of claims 1 to 3, characterized in that it is configured to have the following.

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