JP2020051700A - Air conditioning system - Google Patents

Abstract

To provide an air conditioning system capable of preventing excessive cooling or heating in an air conditioning area.SOLUTION: An air conditioning system is a device that supplies conditioned air to each of a plurality of air conditioning areas in a building. In a step S20, when it is determined that among the plurality of air conditioning areas, a thermo-off execution condition is satisfied and there is at least one air conditioning area satisfying a thermo-off temperature, the air conditioning system executes accelerated air conditioning control on the other air conditioning areas in a step S30. With this accelerated air conditioning control, the temperature of the air-conditioned area that does not satisfy the thermo-off temperature quickly approaches the thermo-off temperature.SELECTED DRAWING: Figure 3

Description

  The disclosure herein relates to an air conditioning system.

  Patent Document 1 discloses that when a state belonging to a temperature zone immediately before a predetermined temperature zone to be thermo-off state continues for a predetermined time during a cooling operation or a heating operation for an air-conditioned space, the compressor is stopped to perform a thermo-off state. Are disclosed. The control unit according to the air conditioner stores in advance a plurality of temperature zones corresponding to the magnitude of the temperature difference between the room temperature and the target temperature.

Japanese Patent No. 6094561

  Patent Document 1 proposes an example of an air conditioner that can prevent overcooling of a room during a good night cooling operation or prevent overheating of a room during a good night heating operation for one air conditioning area. I have. There is a need for further improvements in air conditioning systems that perform air conditioning for a plurality of air conditioning areas.

  An object of the disclosure in this specification is to provide an air conditioning system that suppresses an air-conditioning area from being too cold or too warm.

  The embodiments disclosed in this specification employ different technical means from each other in order to achieve the respective objects. Further, the reference numerals in the parentheses described in the claims and this section are examples showing the correspondence with specific means described in the embodiment described below as one aspect, and limit the technical scope. is not.

  One of the disclosed air conditioning systems is an air conditioning system (1) that supplies conditioned air to each of a plurality of air conditioning areas, and even if one of the plurality of air conditioning areas satisfies a thermo-off temperature. If it exists, accelerated air-conditioning control for increasing the speed at which the thermostat-off temperature is reached for other air-conditioning areas is performed.

  According to this air conditioning system, when at least one of the plurality of air conditioning areas satisfies the thermo-off temperature, accelerated air conditioning control is performed on the other air-conditioning areas that do not satisfy the thermo-off temperature, and the thermo-off is quickly performed. Close to the temperature that satisfies the temperature. Therefore, it is possible to provide an air-conditioning system that suppresses an air-conditioning area from being too cold or too warm.

  One of the disclosed air conditioning systems is an air conditioning system (1) that supplies conditioned air to each of a plurality of air conditioning areas, and even if one of the plurality of air conditioning areas satisfies a thermo-off temperature. If there is, a thermo-off process is performed to stop air conditioning for all air conditioning areas.

  According to this air conditioning system, when at least one of the plurality of air conditioning areas satisfies the thermo-off temperature, the thermo-off processing is performed on all the air conditioning areas so that the air conditioning does not spread any more. Stop temperature control. Therefore, it is possible to provide an air conditioning system that suppresses excessive cooling or overheating of the air conditioning area due to continuation of air conditioning.

It is a schematic structure figure showing the composition of the air-conditioning system concerning a 1st embodiment. It is a figure showing the control composition about an air conditioning system. It is the flowchart which showed the acceleration control which an air-conditioning system performs in 1st Embodiment. 5 is a time chart related to opening control of a damper device, which is an example of acceleration control during cooling operation. It is a time chart regarding opening control of a damper device which is an example of acceleration control at the time of heating operation. 5 is a time chart related to an opening control of a compressor or the like, which is an example of acceleration control during a cooling operation. 6 is a time chart related to opening degree control of a compressor or the like, which is an example of acceleration control during a heating operation. It is the flowchart which showed the control regarding thermo-off performed in 2nd Embodiment. It is a flow chart which showed control performed in a 3rd embodiment. It is a flow chart which showed control performed in a 4th embodiment. It is a schematic structure figure showing the composition of the air-conditioning system concerning a 5th embodiment. It is the flowchart which showed the control regarding thermo-off performed in 5th Embodiment. It is a schematic structure figure showing the composition of the air-conditioning system concerning a 6th embodiment. It is the flowchart which showed the control regarding the thermo-off performed in 6th Embodiment. It is a flow chart which showed acceleration control performed in a 7th embodiment. It is the flowchart which showed the control regarding thermo-off performed in 8th Embodiment. It is a flow chart which showed acceleration control performed in a 9th embodiment.

  Hereinafter, a plurality of embodiments for carrying out the present disclosure will be described with reference to the drawings. In each embodiment, portions corresponding to the items described in the preceding embodiment are denoted by the same reference numerals, and redundant description may be omitted. When only a part of the configuration is described in each embodiment, the other embodiments described above can be applied to other parts of the configuration. Not only the combination of parts that clearly indicate that a combination is possible in each form, but also the forms can be partially combined without being specified, unless there is a particular problem with the combination. It is possible.

(1st Embodiment)
In the first embodiment, an air conditioning system 1 that is an example of an air conditioning system that can achieve the object of the disclosure will be described with reference to FIGS. The air conditioning system 1 is a device installed in a building. The building includes, for example, a detached house, an apartment house such as a condominium having a plurality of air conditioning areas in a housing space of each household, a building having a plurality of air conditioning areas, and the like. The air conditioning system 1 supplies conditioned air whose temperature has been adjusted by the heat energy generated by the heat source device to a predetermined area of the building.

  The building in which the air conditioning system 1 is installed has a plurality of air conditioning areas inside. The air-conditioned area is a space to be air-conditioned such as a room to which the conditioned air whose temperature has been adjusted by the indoor unit 10 is supplied. The plurality of air conditioning areas are, for example, open spaces such as living rooms, kitchens, bedrooms, and guest rooms, entrances, corridors, and the like.

  The air conditioning system 1 includes an indoor unit 10, an outdoor unit 11, a plurality of branch chambers 13 to 15, a plurality of damper devices 141 to 146, 151 to 156, a suction port 12, and a plurality of air outlets. The air conditioning system 1 has one or more suction ports 12. The air conditioning system 1 includes an intake duct 12a that connects the suction port 12 and the indoor unit 10, an intermediate duct 13a that connects the branch chamber 13 and the branch chamber 14, and an intermediate duct 13b that connects the branch chamber 13 and the branch chamber 15. Prepare. The branch chamber 13 includes two branch portions that distribute the air blown from the indoor unit 10 to the branch chamber 14 and the branch chamber 15. The air conditioning system 1 mainly includes a system control unit 100 that controls the operation of the indoor unit 10, an outdoor unit control unit 110 that controls the operation of the outdoor unit 11, a damper control unit 140 that controls the damper devices 141 to 146, and a damper control unit 140. And a damper control unit 150 that controls the devices 151 to 156. The system control unit 100 has a function of outputting an operation command to the outdoor unit control unit 110 and each damper control unit using a control signal.

  The air-conditioning system 1 includes an air outlet, a remote controller, and a remote controller in each of a first area 21, a second area 22, a third area 23, a fourth area 24, and a fifth area 25, which are set as an example of a plurality of air conditioning areas. Is provided. Remote control is an abbreviation for remote controller. The first area 21 is a main area among a plurality of air-conditioning areas, and is a large space such as a living dining kitchen or a hall. In the first area 21, a plurality of outlets 141b, 142b, 143b, 144b, 145b and a main remote controller 16 are installed. The main remote controller 16 has a built-in room temperature sensor 16 a that detects the current temperature in the first area 21, for example, room temperature, and outputs the detected temperature to the system control unit 100.

  The second area 22 is one of the rooms, for example, a Japanese-style room. In the second area 22, an outlet 146b and an individual remote controller 161 are installed. The individual remote controller 161 has a built-in room temperature sensor 161 a that detects a current temperature in the second area 22, for example, a room temperature and outputs the detected temperature to the system control unit 100. The individual remote controller 161 outputs, to the main remote controller 16, information on the air conditioning operation regarding the second area 22 set by operating the air conditioning operation unit of the individual remote controller 161. The third area 23 is one of living rooms, for example, a master bedroom. In the third area 23, a plurality of outlets 151b, 152b, 153b and an individual remote controller 162 are installed. The individual remote controller 162 has a built-in room temperature sensor 162 a that detects the current temperature in the third area 23, for example, the room temperature, and outputs the detected temperature to the system control unit 100. The individual remote controller 162 outputs, to the main remote controller 16, information on the air-conditioning operation regarding the third area 23 set by operating the air-conditioning operation unit on the individual remote controller 162.

  The fourth area 24 is one of the rooms, for example, a Western-style room. In the fourth area 24, a plurality of outlets 154b and 155b and an individual remote controller 163 are installed. The individual remote controller 163 has a built-in room temperature sensor 163a that detects the current temperature in the fourth area 24, for example, the room temperature and outputs the detected temperature to the system control unit 100. The individual remote controller 163 outputs to the main remote controller 16 the information of the air conditioning operation regarding the fourth area 24 set by operating the air conditioning operation unit of the individual remote controller 163. The fifth area 25 is one of the rooms, for example, a Western room. In the fifth area 25, an outlet 156b and an individual remote controller 164 are provided. The individual remote controller 164 has a built-in room temperature sensor 164 a that detects the current temperature in the fifth area 25, for example, the room temperature and outputs the detected temperature to the system control unit 100. The individual remote controller 164 outputs, to the main remote controller 16, information on the air conditioning operation regarding the fifth area 25 set by operating the air conditioning operation unit on the individual remote controller 164.

  The information of the air-conditioning operation output from each individual remote controller to the main remote controller 16 and the information of the air-conditioning operation for the first area 21 and the entire building set in the main remote controller 16 are input to the system controller 100. Further, the system control unit 100 may be configured such that information on the air conditioning operation for each area is directly input from each individual remote controller without passing through the main remote controller 16.

  The branch chamber 14 is provided with six branch portions for distributing the air blown from the branch chamber 13 through the intermediate duct 13a to each outlet. The six branch portions are connected to outlets 141b, 142b, 143b, 144b, 145b via air ducts 141a, 142a, 143a, 144a, 145a, 146a, respectively. The branch chamber 14 has a damper device 141, a damper device 142, a damper device 143, a damper device 144, a damper device 145, and a damper device 146 at each branch portion, and each of the damper devices has an opening degree of a flow path at each branch portion. Can be controlled.

  The branch chamber 15 is provided with six branch portions for distributing the air blown from the branch chamber 13 through the intermediate duct 13b to each outlet. The six branches are connected to outlets 151b, 152b, 153b, 154b, 155b via air ducts 151a, 152a, 153a, 154a, 155a, 156a, respectively. The branch chamber 15 has a damper device 151, a damper device 152, a damper device 153, a damper device 154, a damper device 155, and a damper device 156 at each branch portion, and each of the damper devices has an opening degree of a flow path at each branch portion. Can be controlled. Each damper device included in the air conditioning system 1 may have a configuration that can be varied by a predetermined opening range or a configuration that can be changed to an arbitrary opening. Each damper device is an example of a flow path opening adjustment device that opens and closes a flow path of the conditioned air supplied to each of the plurality of air conditioning areas.

  In the air conditioning system 1, since the damper device and the outlet correspond one-to-one, the number of damper devices and the number of outlets are the same. Alternatively, in the air conditioning system 1, the damper device may be configured to be able to open and close a passage leading to a plurality of air outlets installed in the same air conditioning area.

  The indoor unit 10 and the outdoor unit 11 are examples of a heat source device included in the air conditioning system 1. The indoor unit 10 and the outdoor unit 11 have a heat pump cycle. The heat pump cycle has a refrigerant circuit capable of cooling and heating. A heat pump cycle as one configuration includes a compressor 111, a four-way valve, an outdoor heat exchanger, an expansion device, an indoor heat exchanger, an accumulator, and a solenoid valve, which are sequentially connected by piping to form a closed circuit. A cycle refrigerant circuit is provided. The indoor unit 10 includes an indoor blower 101 and an indoor heat exchanger. The outdoor unit 11 includes a compressor 111, a four-way valve, a throttle device, an outdoor heat exchanger, an accumulator, and a solenoid valve.

  The compressor 111 is an electric compressor that drives a compression mechanism that compresses and discharges refrigerant by being energized by a motor. The compressor 111 has a suction part connected to the outlet part of the accumulator, and a discharge part connected to the four-way valve. A pressure sensor that detects the pressure of the refrigerant and outputs the detected pressure to the system control unit 100 is installed in a pipe that forms a passage connecting the compressor 111 and the four-way valve. The operation of the compressor 111 is controlled by an outdoor unit control unit 110 that cooperates with the system control unit 100 through information communication.

  The four-way valve and the solenoid valve are one of flow path switching devices that can switch the flow path of the refrigerant between a cooling flow path for performing a cooling operation and a heating flow path for performing a heating operation. During the cooling operation, the indoor heat exchanger functions as a cooling heat exchanger for cooling air, and the outdoor heat exchanger functions as a radiating heat exchanger for releasing heat to the outside. During the heating operation, the outdoor heat exchanger functions as a heat absorbing heat exchanger that absorbs heat from the air, and the indoor heat exchanger functions as a heating heat exchanger that discharges heat to the outside to heat the air. The outdoor heat exchanger is provided with an outdoor blower 112 that ventilates outside air. The outside air blown by the outdoor blower 112 exchanges heat with the refrigerant flowing through the heat exchange core of the outdoor heat exchanger. An outside air temperature sensor that detects outside air temperature and outputs it to the system control unit 100 is provided upstream of the outdoor heat exchanger in the air flow. The operation of the outdoor blower 112 is controlled by an outdoor unit control unit 110 that cooperates with the system control unit 100 by communicating information.

  The indoor heat exchanger is provided with an indoor blower 101 that blows air that has passed through the heat exchange core of the indoor heat exchanger toward the air conditioning area. The air blown by the indoor blower 101 exchanges heat with the refrigerant flowing through the heat exchange core of the indoor heat exchanger. An outlet temperature sensor that detects the temperature of the air blown to each outlet and outputs the detected temperature to the system controller 100 is provided downstream of the indoor heat exchanger in the air flow. In the air conditioning system 1, one blowout temperature sensor is installed in each of a plurality of air conditioning areas. The air conditioning system 1 measures the temperature of each air conditioning area using a blowout temperature sensor. The amount of heat supplied to each air conditioning area per unit time is determined by the temperature and flow rate of air supplied from each outlet.

  The expansion device has an opening degree set in advance, and is an example of a pressure reduction device that decompresses and expands high-pressure refrigerant. The refrigerant flowing through the refrigerant circuit flows into the indoor heat exchanger while being decompressed by the expansion device. The expansion device may be configured by a cabillary tube, or may be replaced by an electronic expansion valve whose opening can be adjusted.

  In the air conditioning system 1, the air blown from the indoor unit 10 is supplied to each air conditioning area through each air duct. The air taken in by the indoor unit 10 is indoor air that reaches the suction port of the indoor unit 10 from the suction port 12 installed in the building through the inside of the intake duct 12a. The air that has flowed out from each of the plurality of air-conditioning areas through a gap such as a slit provided in a room door is collected and sucked into the suction port 12. In the air conditioning system 1, the ratio of distributing the heat energy generated by the indoor unit 10 and the outdoor unit 11 to the plurality of outlets is determined by the degree of opening of each damper device with respect to each flow path.

  The control devices, such as the system control unit 100, the outdoor unit control unit 110, and the damper control units, control the indoor unit 10 and the outdoor unit 10 in the air conditioning operation control so as to reduce the difference between the current temperature and the target temperature in each air conditioning area. The operation of the machine 11 and each damper device is controlled. The target temperature in the specification may be a temperature determined by the control unit or a set temperature set for each air conditioning area. Each air conditioning area approaches the set temperature set by the remote controller.

  In the air conditioning operation control, when the temperature of the air conditioning area is between the target temperature and the thermo-off temperature in the air conditioning operation control, the opening of the corresponding damper device is maintained as it is. The air conditioning system 1 closes the opening of the corresponding damper device when the temperature of the air conditioning area satisfies the thermo-off temperature in the air conditioning operation control.

  The air-conditioning system 1 controls each damper device in the air-conditioning operation control such that the opening degree is maintained or the opening degree is increased as the difference between the current room temperature that has not yet reached the target temperature and the target temperature is larger. Alternatively, control may be performed by varying the opening change amount so as to open each large opening in order to increase the air volume. The air-conditioning system 1 controls each damper device in the air-conditioning operation control so that the smaller the difference between the current room temperature that has not yet reached the target temperature and the target temperature, the smaller the degree of opening maintenance or the degree of opening. Alternatively, control may be performed by changing the opening change amount so as to open the opening by a small opening.

  A remote controller installed in each air conditioning area includes a touch panel including a display device and a touch pad, and functions as a user interface. Each remote control has a display screen unit as an operation display unit that becomes a display state during operation of the air conditioning system 1 and various air conditioning operation units. Each remote control is provided with an air-conditioning operation unit capable of inputting setting of room temperature, operation and stop of cooling, operation and stop of heating, operation and stop of dehumidification in each air-conditioning area. The display screen unit is controlled to a display state according to a command signal from the system control unit 100.

  When operation signals such as operation, stop, and set temperature of the indoor unit 10 and detection signals of various sensors are input, the system control unit 100 communicates with the outdoor unit control unit 110, each damper control unit, and the like. The system control unit 100 executes predetermined arithmetic processing in accordance with a manual operation command and an automatic operation set temperature set by the air-conditioning operation unit, and supplies the air volume of the indoor blower 101, the rotation speed of the compressor 111, The number of rotations of the blower 112 and the degree of opening of each damper device are controlled.

  The air conditioning operation unit includes a forced operation operation unit, an automatic operation operation unit, and the like of an air conditioner that can be operated by a user such as a resident or a occupant. When the user operates a forced operation command operation unit capable of instructing various operations such as cooling, heating, and dehumidification, an operation command signal corresponding to the operation is input to the input unit of the system control unit 100. The system control unit 100 operates an air conditioner for performing a heating operation or a cooling operation in cooperation with the outdoor unit control unit 110 and each damper control unit. When the user operates the automatic operation operation unit, an automatic operation command signal including a set temperature, an air flow rate, and the like set for the target air conditioning area is input to the input unit of the system control unit 100. The system control unit 100 performs a heating operation and a cooling operation in cooperation with the outdoor unit control unit 110 and each damper control unit according to the set temperature of each air conditioning area.

  The system control unit 100, the outdoor unit control unit 110, the damper control unit 140, or the damper control unit 150 includes: an interface unit that communicates with another control unit, a control target component, each remote controller, various sensors, and the like; an arithmetic processing unit; And at least a part. The storage unit is a non-transitional substantial storage medium that temporarily stores a computer-readable program, and may be provided by a semiconductor memory or a magnetic disk. The arithmetic processing unit is an arithmetic processing unit, and performs determination processing and arithmetic processing according to a predetermined program using information obtained from each remote controller and various sensors through the interface unit and control characteristic maps and data stored in the storage unit. Perform processing. The calculation processing unit is a calculation execution unit in each control unit and a determination processing execution unit. The interface unit operates the control target component based on the determination result and the calculation result by the calculation processing unit. The interface unit is an input unit and a control output unit in each control unit.

  Further, each of the system control unit 100, the outdoor unit control unit 110, the damper control unit 140, and the damper control unit 150 provides a part of the control system. The control system includes at least one processor. The processor may be provided by software recorded in a substantial memory device and a computer executing the software, software only, hardware only, or a combination thereof. For example, the processor may be provided by logic called if-then-else format, or by a trained model (neural network) tuned by machine learning.

  An example of the processor includes an arithmetic processing unit (CPU) and at least one memory device (MMR) as a storage medium for storing programs and data. An example of the processor is provided by a computer including a computer-readable storage medium. The storage medium is a non-transitional substantial storage medium that temporarily stores a computer-readable program. The storage medium can be provided by a semiconductor memory, a magnetic disk, or the like. The program, when executed by the control system, causes the control system to function as the device described in this specification and causes the control system to perform the method described in this specification. One example of a processor can be provided by electronic circuitry that is hardware. In this case, the processor can be provided by a digital circuit including a large number of logic circuits, or an analog circuit.

  The control system may be provided by a single processor or a set of processors linked by a data communication device. Some of the means and / or functions provided by the control system are provided by a processor configured to perform those functions. The term "processor configured to achieve a function" refers to achieving the above function by software, achieving the above function by hardware, and achieving the above function by both software and hardware. Including cases.

  The control device, the signal source, and the control target included in the control system provide various elements. At least some of these elements may be referred to as blocks for performing a function. In another aspect, at least some of those elements can be referred to as modules or sections that are interpreted as components. Further, the elements included in the control system can also be referred to as means for realizing the function only when intentional.

  In the case of the air-conditioning system 1 that air-conditions a plurality of air-conditioning areas with one heat source device, when all of the air-conditioning areas providing the air-conditioning operation satisfy the thermo-off temperature, the normal thermo-off for stopping the air-conditioning is performed. Normal thermo-off is an example of an operation stop process included in the air-conditioning operation control performed by the air-conditioning system 1. Normal thermo-off can be performed by, for example, stopping the compressor 111, stopping the indoor blower 101, and closing all damper devices.

  The thermo-off temperature, which is a threshold for performing thermo-off, is set so as to have a predetermined temperature difference from a set temperature set by operation of the air-conditioning operation unit or a target temperature determined by the control unit. The air-conditioning system 1 sets the thermo-off temperature to a temperature lower than the set temperature or the target temperature by a predetermined temperature difference during the cooling operation. During the cooling operation, when the temperature (room temperature) of the air-conditioning area becomes lower than the set temperature and further reaches the thermo-off temperature, the air-conditioning system 1 executes the thermo-off and tries to suppress a state that is too cold. The air conditioning system 1 sets the thermo-off temperature to a higher temperature by a predetermined temperature difference from the set temperature or the target temperature during the heating operation. During the heating operation, when the temperature (room temperature) of the air-conditioning area becomes higher than the set temperature and further reaches the thermo-off temperature, the air-conditioning system 1 executes the thermo-off and tries to suppress a state of being overheated.

  Furthermore, when providing the air-conditioning operation to a plurality of air-conditioning areas, the air-conditioning system 1 suppresses excessive cooling and overheating of the air-conditioning area by performing the following control in addition to the normal thermo-off described above. . The air-conditioning system 1 performs accelerated air-conditioning control that promotes the room temperature to reach the thermo-off temperature according to the flowchart shown in FIG. 3 in the first embodiment.

  The air-conditioning system 1 sequentially executes the processing in each step of the flowchart illustrated in FIG. 3 in a state where the air-conditioning operation switch is turned on in the air-conditioning operation unit of the remote controller, and repeats these steps to perform the air-conditioning operation. The control shown in FIG. 3 is continuously executed. That is, the air conditioning system 1 continues the processing of step S20 and step S30 in FIG. 3 during the air conditioning operation. The programs and data related to the control illustrated in FIG. 3 are stored in, for example, the storage unit of the system control unit 100. The time charts shown in FIGS. 4 to 7 show the relationship between the temperature of the representative air conditioning area and the operation of each air conditioner when the processes of steps S10, S20, and S30 of FIG. 3 are performed in order. .

  In a state where the air conditioning system 1 is turned on, the system control unit 100 executes the above-described air conditioning operation control in step S10 while cooperating with each remote control corresponding to the air conditioning area to be air-conditioned, and Supply conditioned air to the area. In the first embodiment, the air-conditioning area to be air-conditioned is an area in which a remote controller that is turned on is installed. Further, the main remote controller 16 may be configured so that an air-conditioning area to be air-conditioned can be set. Alternatively, the air-conditioning area to be air-conditioned may be configured so that all air-conditioning areas in which the air-conditioning system 1 can air-condition are set as defaults.

  The system control unit 100 repeatedly executes the determination processing of step S10A in a state where the air-conditioning operation control set by each remote controller is continued. In step S10A, as described above, it is determined whether or not the temperatures of all the air conditioning areas satisfy the thermo-off temperature. If it is determined in step S10A that all the air conditioning areas have reached the thermo-off temperature, the system control unit 100 executes normal thermo-off in step S10B as described above, and returns to step S10. If not all the air conditioning areas have reached the thermo-off temperature in step S10A, a NO determination is made, and then a determination process in step S20 is executed.

  If a negative determination is made in step S10A, the system control unit 100 repeatedly executes the processing in step S20 and step S30. In step S20, it is detected whether the temperature of each air conditioning area to be determined satisfies the thermo-off execution condition, and it is determined whether the thermo-off execution condition is satisfied for at least one air conditioning area. In this embodiment, the plurality of air conditioning areas to be determined in step S20 are all the air conditioning areas to which the air conditioning system 1 supplies the conditioned air. The determination in step S20 determines that the thermo-off temperature is satisfied and the thermo-off execution condition is satisfied when the room temperature of the air-conditioned area is lower than the set temperature and further reaches the thermo-off temperature during the cooling operation, as described above. . In addition, during the heating operation, when the room temperature of the air conditioning area becomes higher than the set temperature and further reaches the thermo-off temperature, it is determined that the thermo-off execution condition is satisfied.

  That is, if the thermo-off execution condition is satisfied for any of the air-conditioning areas to be air-conditioned and the remaining air-conditioning areas are not satisfied, a YES determination is made in step S20. In step S20, it is needless to say that a YES determination is also made, for example, when the determination is made in one area and the determination is made in the remaining areas. If all the air conditioning areas are not satisfied among the plurality of air conditioning areas, a NO determination is made in step S20.

  If the determination in step S20 is NO, the air-conditioning area has not yet reached the thermo-off temperature and is not too cold or too warm, so the process returns to step S10 to continue the air-conditioning operation control. Then, the determination process of step S20 is repeatedly executed while continuing the air-conditioning operation control as described above.

  If the determination is YES in step S20, the system control unit 100 executes accelerated air conditioning control in step S30 to quickly approach the state in which the thermo-off execution condition is satisfied for the air-conditioning area where the thermo-off execution condition is not satisfied. The system control unit 100 executes the accelerated air conditioning control process, returns to step S10 again, and continues the air conditioning operation control. By the accelerated air-conditioning control in step S30, the temperature of the air-conditioned area where the thermo-off execution condition is not satisfied quickly approaches the thermo-off temperature. Of the plurality of air-conditioning areas, the air-conditioning area having a higher air-conditioning load than the other areas does not easily reach the thermo-off temperature, so that the indoor unit 10 continues to blow the conditioned air, so that the other areas are excessively cooled or heated. I do. According to this accelerated air-conditioning control, the air-conditioning area, which is a high air-conditioning load, is quickly brought closer to the thermo-off temperature, so that the air-conditioning system 1 stops the air-conditioning quickly and prevents the other areas from becoming too cold or too warm. . An air-conditioning area with a high air-conditioning load refers to an area with a large number of heating elements such as people and machines, an area with a large amount of solar radiation taken in from outside, and an area with a small amount of solar radiation taken in from the other areas. I do.

  The system control unit 100 controls the damper device so that the opening degree of the corresponding damper device becomes a controllable lower limit value as a thermo-off process for the air-conditioning area that has reached the thermo-off temperature, and substantially controls air conditioning for the air-conditioning area. Stop. As a result, it is possible to prevent the air-conditioned area subjected to the thermo-off processing from being too cold or too warm. Then, the temperature of the air-conditioned area subjected to the thermo-off processing gradually returns to the temperature included between the thermo-off temperature and the set temperature by continuing the thermo-off state.

  Next, an example of accelerated air conditioning will be described with reference to FIGS. In the accelerated air conditioning control during the cooling operation, each air conditioner operates as shown in the time chart of FIG. 4 as an example. As shown in FIG. 4, among the plurality of air-conditioning areas, the temperature of the air-conditioning area having a high air-conditioning load and the temperature of the air-conditioning area having a low air-conditioning load are different from those of the air-conditioning area. When the temperature reaches the temperature, the thermo-off execution condition is satisfied in the low air conditioning load area. At this time, in the high air conditioning load area, the thermo-off execution condition has not been satisfied yet. The air conditioning system 1 starts the accelerated air conditioning at the timing indicated by the dashed line when the temperature of the low air conditioning load area reaches the thermo-off temperature.

  At this time, the air conditioning system 1 maintains the rotation speed of the compressor 111 at a constant value at the start of the acceleration air conditioning control. The rotation speed of the compressor 111 has a relationship proportional to the refrigerant discharge amount of the compressor 111 or the air conditioning output. In the example shown in FIG. 4, the rotation speed of the compressor 111 is maintained at the lower limit value after the start of the acceleration air conditioning control. Further, the air conditioning system 1 stops the rotation of the compressor 111 at the timing when the thermo-off execution condition is satisfied for the high air conditioning load area. Thereby, the blown air is sent to the blow duct in a state where the temperature is not adjusted by the indoor heat exchanger. The air-conditioning system 1 maintains the amount of air blown from the indoor blower 101 at a constant value at the start of the accelerated air-conditioning control. In the example shown in FIG. 4, the amount of air blown by the indoor blower 101 is maintained at the lower limit value after the start of the acceleration air conditioning control. As a result, the amount of air blown from the indoor unit 10 is controlled to the lower limit after the start of the acceleration air conditioning control.

  As an example of the accelerated air conditioning control, the air conditioning system 1 controls a damper device corresponding to a high air conditioning load area in which the thermo-off execution condition is not satisfied so that the flow path opening is increased. By this control, the amount of air blown out to the high air conditioning load area increases, and the temperature in this area further decreases and changes so as to approach the thermo-off temperature. The high air conditioning load area where the thermo-off execution condition is not satisfied can be quickly brought into the thermo-off state by the temperature lowering effect due to the increase in the air-conditioning air flow. When the thermo-off execution condition is satisfied for the high air conditioning load area, the air conditioning system 1 stops increasing the opening degree of the damper device corresponding to the high air conditioning load area and maintains the opening degree at a constant flow path. When the opening degree of the damper device is maintained at a constant flow path opening degree, the temperature of the high air conditioning load area rises and gradually changes to approach the set temperature.

  The air-conditioning system 1 maintains the opening degree of the damper device corresponding to the low air-conditioning load area where the thermo-off execution condition is satisfied at a constant value with the start of the acceleration air-conditioning control. In the example shown in FIG. 4, the opening degree of the damper device is maintained at the lower limit value after the start of the acceleration air conditioning control. If the opening of the damper device corresponding to the low air-conditioning load area is maintained at the lower limit and the opening degree of the damper device corresponding to the high air-conditioning load area increases, the low air conditioning The amount of air blown to the load area decreases. As a result, the air conditioning output to the low air conditioning load area is suppressed, so that the low air conditioning load area can be suppressed from being too cold. After the temperature of the low air-conditioning load area falls below the thermo-off temperature, the temperature of the high air-conditioning load area changes to rise near the timing at which the thermo-off execution condition is satisfied and exceeds the thermo-off temperature.

  In the accelerated air conditioning control during the heating operation, for example, each air conditioner operates as shown in the time chart of FIG. In FIG. 5 as well, the timing indicated by the dashed line corresponds to the start of the acceleration air conditioning control. As shown in FIG. 5, among the plurality of air conditioning areas, the temperature of the air conditioning area having a high air conditioning load and the temperature of the air conditioning area having a low air conditioning load are compared with the temperature of the air conditioning area having the low air conditioning load first. When the temperature reaches the temperature, the thermo-off execution condition is satisfied in the low air conditioning load area. At this time, in the high air conditioning load area, the thermo-off execution condition has not been satisfied yet. During the heating operation, the air conditioning system 1 controls the rotation speed of the compressor 111 and the amount of air blown by the indoor blower 101 in the same manner as in the cooling operation described above.

  The air-conditioning system 1 controls the damper device corresponding to the high air-conditioning load area where the thermo-off execution condition is not satisfied so as to increase the flow path opening as an example of the accelerated air-conditioning control during the heating operation. With this control, the amount of air blown out to the high air conditioning load area increases, and the temperature in this area further rises and changes so as to approach the thermo-off temperature. The high air-conditioning load area where the thermo-off execution condition is not satisfied can be quickly brought into the thermo-off state due to the temperature rise effect due to the increase in the air-conditioning air volume. When the thermo-off execution condition is satisfied for the high air-conditioning load area, the air-conditioning system 1 stops increasing the opening of the damper device corresponding to the high air-conditioning load area and maintains a constant flow path opening. The temperature of the area decreases and gradually changes to approach the set temperature.

  The air-conditioning system 1 maintains the opening of the damper device corresponding to the low air-conditioning load area at a constant value with the start of the accelerated air-conditioning control. In the example shown in FIG. 5, the opening degree of the damper device is maintained at the lower limit value after the start of the acceleration air conditioning control. Also in this case, as described above, the amount of air blown to the low air-conditioning load area decreases as the amount of air blown to the high air-conditioning load area increases. As a result, the air conditioning output to the low air conditioning load area is suppressed, so that it is possible to prevent the low air conditioning load area from becoming too warm. After the temperature of the low air-conditioning load area exceeds the thermo-off temperature, the temperature of the high air-conditioning load area changes so as to decrease and fall below the thermo-off temperature near the timing at which the thermo-off execution condition is satisfied.

  In the acceleration air conditioning control, when the temperature of the air conditioning area satisfies the thermo-off temperature and falls within a predetermined temperature range, the air conditioning system 1 maintains the opening degree of the corresponding damper device as it is. In the air-conditioning operation control, when the temperature of the air-conditioning area satisfies the thermo-off temperature and deviates from the thermo-off temperature so as not to be included in the predetermined temperature range, the opening of the corresponding damper device is closed.

  In the air conditioning system 1, in the acceleration air conditioning control, the greater the difference between the current room temperature that has already reached the target temperature and has not reached the thermo-off temperature and the target temperature, the more the opening degree is maintained or the smaller the opening degree. Control may be performed, or the opening degree change amount may be varied so as to be opened in small opening degrees. In the air conditioning system 1, in the acceleration air conditioning control, the smaller the difference between the current indoor temperature that has already reached the target temperature and has not reached the thermo-off temperature and the target temperature, the more the opening degree is maintained or the larger the opening degree. Control may be performed such that the opening change amount is varied so that the opening increases by a large opening.

  The accelerated air-conditioning control during the cooling operation is performed, for example, by controlling the rotation speed of the compressor 111 or the amount of air blown by the indoor blower 101 as shown in a time chart of FIG. In FIG. 6 as well, the timing indicated by the dashed line corresponds to the start of the acceleration air conditioning control. As shown in FIG. 6, the temperature change in the low air-conditioning load area and the temperature change in the high air-conditioning load area are the same as the temperature change shown in FIG.

  The air conditioning system 1 controls so as to increase the rotation speed of the compressor 111 as an example of accelerated air conditioning during cooling operation. By the accelerated air conditioning control by the increase in the output of the compressor, the temperature of the air blown to the high air conditioning load area decreases, and the temperature of this area further decreases and changes to approach the thermo-off temperature. Due to the temperature lowering effect due to the increase in the cooling output, the high air-conditioning load area where the thermo-off execution condition is not satisfied can be quickly brought into the thermo-off state. When the thermo-off execution condition is satisfied for the high air conditioning load area, the air conditioning system 1 stops the operation of the compressor 111 and greatly reduces the cooling output into the building. When the cooling output is greatly reduced, the temperature of the high air conditioning load area rises and gradually changes to approach the set temperature. On the other hand, the temperature of the low air-conditioning load area in which the thermo-off execution condition is satisfied temporarily falls below the thermo-off temperature due to an increase in the cooling output, and then turns to rise by operation of the compressor 111 to exceed the thermo-off temperature. Change. As described above, since the air conditioning output to the low air conditioning load area is suppressed, it is possible to prevent the low air conditioning load area from getting too cold.

  The air-conditioning system 1 may perform control to increase the amount of air blown from the indoor blower 101 as an example of accelerated air-conditioning control during cooling operation. Due to the accelerated air conditioning control based on the increase in the air blowing amount, the cooling air volume to the high air conditioning load area increases, and the temperature in this area further decreases and changes to approach the thermo-off temperature. The high air conditioning load area where the thermo-off execution condition is not satisfied can be quickly brought into the thermo-off state due to the temperature lowering effect due to the increase in the cooling air volume. When the thermo-off execution condition is satisfied for the high air-conditioning load area, the air-conditioning system 1 controls the air blowing amount of the indoor blower 101 to a lower limit value to greatly reduce the cooling air flow into the building. When the cooling air volume is greatly reduced, the temperature of the high air conditioning load area rises and gradually changes to approach the set temperature. On the other hand, the temperature of the low air-conditioning load area where the thermo-off execution condition is satisfied temporarily falls below the thermo-off temperature due to an increase in the cooling air flow, and then rises by controlling the air flow of the indoor blower 101 to the lower limit value. In turn, it changes to exceed the thermo-off temperature. Thus, since the air-conditioning airflow to the low air-conditioning load area is suppressed, it is possible to prevent the low air-conditioning load area from getting too cold.

  The accelerated air conditioning control during the heating operation is performed, for example, by controlling the rotation speed of the compressor 111 or the amount of air blown by the indoor blower 101 as shown in a time chart of FIG. Also in FIG. 7, the timing indicated by the dashed line corresponds to the start of the acceleration air conditioning control. As shown in FIG. 7, the temperature change in the low air conditioning load area and the temperature change in the high air conditioning load area are the same as the temperature change shown in FIG. During the heating operation, the air conditioning system 1 controls the rotation speed of the compressor 111 and the amount of air blown by the indoor blower 101 in the same manner as in the cooling operation illustrated in FIG.

  The air conditioning system 1 controls so as to increase the rotation speed of the compressor 111 as an example of the acceleration air conditioning control during the heating operation. By the accelerated air conditioning control by the increase in the output of the compressor, the temperature of the air blown to the high air conditioning load area rises, and the temperature of this area further rises and approaches the thermo-off temperature. Due to the temperature increase effect due to the increase in the heating output, the high air-conditioning load area where the thermo-off execution condition is not satisfied can be quickly brought into the thermo-off state. When the thermo-off execution condition is satisfied for the high air conditioning load area, the air conditioning system 1 stops the operation of the compressor 111 and greatly reduces the heating output to the building. When the heating output is greatly reduced, the temperature in the high air conditioning load area decreases and changes so as to gradually approach the set temperature. On the other hand, the temperature of the low air-conditioning load area in which the thermo-off execution condition is satisfied temporarily exceeds the thermo-off temperature due to an increase in the heating output, and then turns to decrease due to the stoppage of the compressor 111 and falls below the thermo-off temperature. Change. As described above, since the air conditioning output to the low air conditioning load area is suppressed, it is possible to suppress excessive warming of the low air conditioning load area.

  The air-conditioning system 1 may perform control such that the amount of air blown from the indoor blower 101 is increased as an example of accelerated air-conditioning control during the heating operation. Due to the accelerated air-conditioning control based on the increase in the air blowing amount, the amount of heating air to the high air-conditioning load area increases, and the temperature in this area further rises and changes to approach the thermo-off temperature. The high air-conditioning load area where the thermo-off execution condition is not satisfied can be quickly brought into the thermo-off state by the temperature rise effect due to the increase of the heating air volume. When the thermo-off execution condition is satisfied for the high air-conditioning load area, the air-conditioning system 1 controls the air blowing amount of the indoor blower 101 to a lower limit value to greatly reduce the heating air flow into the building. When the heating air volume is greatly reduced, the temperature of the high air conditioning load area decreases and gradually changes to approach the set temperature. On the other hand, the temperature of the low air-conditioning load area in which the thermo-off execution condition is satisfied temporarily exceeds the thermo-off temperature due to the increase of the heating air volume, and then decreases by controlling the air volume of the indoor blower 101 to the lower limit value. In turn, it changes below the thermo-off temperature. Since the amount of air-conditioning airflow to the low air-conditioning load area is suppressed in this way, it is possible to suppress excessive warming of the low air-conditioning load area.

  The operation and effect provided by the air conditioning system 1 according to the first embodiment will be described. The air conditioning system 1 supplies conditioned air to each of a plurality of air conditioning areas. The air-conditioning system 1 performs accelerated air-conditioning control that increases the speed at which the temperature reaches the thermo-off temperature for the other air-conditioning areas when there is at least one air-conditioning area that satisfies the thermo-off temperature among the plurality of air-conditioning areas.

  According to the air conditioning system 1, when at least one of the plurality of air conditioning areas satisfies the thermo-off temperature, accelerated air conditioning control is performed on other air-conditioning areas that do not satisfy the thermo-off temperature. By this accelerated air conditioning control, the temperature of other air-conditioning areas that do not satisfy the thermo-off temperature can be quickly brought close to the temperature that satisfies the thermo-off temperature. The air conditioning system 1 contributes to suppressing overcooling and overheating of the plurality of air conditioning areas. The air-conditioning system 1 can eliminate a situation where a person in the air-conditioned area loses comfort at an early stage.

  The air conditioning system 1 includes a flow path opening degree adjustment device that opens and closes a flow path of the conditioned air supplied to each of the plurality of air conditioning areas. The air-conditioning system 1 performs accelerated air-conditioning control by controlling the flow-path opening adjustment device so that the flow-path opening is increased. According to this configuration, the flow opening to the downstream air conditioning area is increased by controlling the opening of the flow passage to a large degree by the flow passage opening adjusting device, so that a larger air conditioning capacity can be supplied. As described above, energy can be saved by the accelerated air conditioning control of adjusting the flow path opening, and the temperature of the air conditioning area can be quickly brought to the thermo-off temperature.

  The accelerated air conditioning control includes controlling the compressor 111 so as to further increase the refrigerant discharge amount, in addition to the control of the flow path opening degree adjusting device. According to this configuration, by controlling the compressor 111 to further increase the refrigerant discharge amount, it is possible to increase the amount of strongly air-conditioned air and blow it to the downstream air-conditioning area. According to the conditioned air, the temperature of the conditioned area can be brought to the thermo-off temperature earlier.

  The accelerated air-conditioning control includes controlling the indoor blower 101 so as to further increase the flow rate of the conditioned air in addition to the control of the flow path opening degree adjusting device. According to this configuration, since the amount of air blown from the indoor unit 10 is increased, more air-conditioned air can be blown to the downstream air-conditioned area. According to this configuration, the temperature of the air conditioning area can be quickly brought to the thermo-off temperature.

  The air conditioning system 1 includes a compressor 111 that discharges a refrigerant circulating in a heat pump cycle. The air conditioning system 1 performs accelerated air conditioning control by controlling the compressor 111 so as to increase the refrigerant discharge amount and increasing the air conditioning output. According to this configuration, a greater air-conditioning capacity can be supplied to the downstream air-conditioning area by increasing the heat-absorbing and heat-radiating effects of the refrigerant in the indoor heat exchanger. As described above, by controlling the air conditioning output in the heat pump cycle to be enhanced, the temperature of the air conditioning area can be quickly brought to the thermo-off temperature.

  The accelerated air-conditioning control includes, in addition to the control for increasing the refrigerant discharge amount of the compressor 111, controlling the indoor blower 101 so as to further increase the amount of conditioned air blown. According to this configuration, since the heat absorbing function and the heat radiating function of the refrigerant in the indoor heat exchanger are strengthened, and the amount of the original air blown from the indoor unit 10 is increased, the conditioned air having a larger air conditioning capacity is used. More air can be sent to the downstream air conditioning area. Therefore, the temperature of the air conditioning area can be brought to the thermo-off temperature earlier.

  The air-conditioning system 1 performs accelerated air-conditioning control by controlling the indoor blower 101 so as to increase the amount of air-conditioned air. According to this configuration, by controlling the amount of air blown from the indoor blower 101 to a large amount, the amount of air blown to the downstream air-conditioning area increases, and a larger air-conditioning capacity can be supplied. You can take it.

(2nd Embodiment)
In the second embodiment, another control executed by the air conditioning system 1 will be described with reference to FIG. The flowchart of FIG. 8 differs from the flowchart described with reference to FIG. 3 in the first embodiment in steps S30A and S40. Hereinafter, contents different from the first embodiment will be described.

  The system control unit 100 repeatedly executes the processes of step S20, step S30A, and step S40 while the air conditioning operation control set by each remote controller is continued. If the determination is YES in step S20, system control unit 100 executes a thermo-off process for stopping air conditioning in step S30A. In step S30A, for example, the thermo-off process is performed by executing a stop process of the indoor blower 101, a lower limit opening degree process of the damper device, a close process of the damper device, and a stop process of the compressor 111. The air conditioning system 1 stops the air conditioning for all the air conditioning areas to be air-conditioned by performing the thermo-off process when the thermo-off execution condition is satisfied in at least one air conditioning area. According to this control, it is possible to suppress a state where the air-conditioning area is too cold or too warm.

  After executing the thermo-off process, the system control unit 100 sets the opening of the damper device to a predetermined start position in step S40, and sets the opening at the start of the next air conditioning operation. Then, the process returns to step S10 and waits for the next air conditioning operation. In step S40, the opening of the damper device is set as follows. In step S40, the damper device corresponding to the air conditioning area for which the thermo-off execution condition is satisfied in step S20 is set to the lower limit opening or the opening closing the flow path. Thus, the next air-conditioning operation can be started from a state where the air-conditioning output is small and the air-conditioning is hardly effective. In step S40, the damper device corresponding to the air-conditioning area for which the thermo-off execution condition is not satisfied in step S20 is set to the opening of the upper limit value or the opening of the flow path. Thus, the next air-conditioning operation can be started from a state where the air-conditioning output is large and the air-conditioning is likely to be effective.

  According to the second embodiment, the air-conditioning system 1 performs a thermo-off process of stopping air-conditioning for all the air-conditioning areas when at least one of the plurality of air-conditioning areas satisfies the thermo-off temperature. I do.

  According to this air conditioning system, when at least one of the plurality of air conditioning areas satisfies the thermo-off temperature, the thermo-off process is performed on all the air conditioning areas. By this processing, the temperature control is stopped promptly so that the air conditioning does not spread to each air conditioning area any more. The air conditioning system 1 can suppress excessive cooling or overheating of the air conditioning area due to continuation of the air conditioning, and can quickly prevent a person in the air conditioning area from losing comfort.

  After the execution of the thermo-off process, the air-conditioning system 1 sets the damper device corresponding to the air-conditioning area where the thermo-off execution condition is satisfied to the lower limit opening or the opening closing the flow path. According to this configuration, the next air-conditioning operation can be started from a state in which the air-conditioning output is small and the air-conditioning is hardly effective, so that the temperature can be prevented from reaching the thermo-off temperature immediately.

  After the execution of the thermo-off process, the air-conditioning system 1 sets the damper device corresponding to the air-conditioning area that does not satisfy the thermo-off temperature to the opening of the upper limit value or the opening of the flow path. According to this configuration, the next air-conditioning operation can be started from a state in which the air-conditioning output is large and the air-conditioning is easily operated. It can contribute to reducing the difference.

(Third embodiment)
In the third embodiment, another control executed by the air conditioning system 1 will be described with reference to FIG. The flowchart of FIG. 9 differs from the flowchart described in the second embodiment in that step S21 is executed after step S20 and that the acceleration air-conditioning control process is executed when the determination in step S21 is NO. I do. Hereinafter, contents different from the above-described embodiment will be described.

  The system control unit 100 repeatedly executes the determination processing of step S20 and the determination processing of step S21 while the air-conditioning operation control set by each remote controller is continued. If the determination is YES in step S20, the system control unit 100 determines in step S21 whether the opening of the damper device is at the lower limit. In step S21, it may be determined whether the opening of the damper device is in a state in which the flow path is closed.

  When the opening degree of the damper device is not the lower limit value or the flow path is not closed in step S21, the same accelerated air conditioning control as in the first embodiment is executed in step S30, and the process returns to step S10 again. To continue the air-conditioning operation control. If the opening of the damper device is at the lower limit or the flow path is closed in step S21, the same thermo-off process as in the first embodiment is executed in step S30A. Further, as in the second embodiment, a start opening degree process of the damper device is performed in step S40, and the process returns to step S10 to wait for the next air conditioning operation.

  If the determination is YES in step S21, the amount of air blown to each air conditioning area is small or almost zero. In this state, the thermo-off execution condition is satisfied in at least one of the plurality of air conditioning areas, even though the air is being blown little by little into the air conditioning areas. In such a state, the degree of overcooling or overheating is considerably advanced, so that the air conditioning can be immediately stopped and deterioration of comfort can be suppressed at an early stage.

  In step S21, the degree of opening is determined for the damper devices corresponding to all the air-conditioning areas to be determined in step S20. In this case, since the air conditioning is sufficiently effective in spite of a small air volume in a state where the opening degrees of all the damper devices are closed or close thereto, by executing the thermo-off process rather than the accelerated air conditioning control, early In this way, it is possible to suppress excessive cooling and overheating of all air conditioning areas.

  Further, in step S21, the opening degree is determined for the damper device corresponding to the air conditioning area for which it has been determined that the thermo-off execution condition is not satisfied. In this case, it takes time until the temperature reaches the thermo-off temperature even if the area where the condition is not satisfied is subjected to the accelerated air conditioning control. For this reason, by executing the thermo-off process in step S30A rather than the accelerated air conditioning control, it is possible to suppress early cooling or overheating of all air conditioning areas.

  The air-conditioning system 1 according to the third embodiment is configured such that when at least one air-conditioning area that satisfies a thermo-off temperature is present among a plurality of air-conditioning areas, the opening degrees of the flow path opening degree adjustment devices corresponding to all air-conditioning areas are lower than the lower limit. When the value or the flow path is closed, the acceleration air conditioning control is not performed. In this case, the air conditioning system 1 performs a thermo-off process for stopping air conditioning for all air conditioning areas. According to this configuration, the air conditioning is sufficiently effective even though there is almost no air flow. By executing the thermo-off process without performing the accelerated air conditioning control in such a state, the air conditioning can be stopped immediately, so that all the air conditioning areas can escape from a state of being too cold or too warm at an early stage.

(Fourth embodiment)
In the fourth embodiment, another control executed by the air conditioning system 1 will be described with reference to FIG. The flowchart of FIG. 10 differs from the flowchart of the first embodiment described with reference to FIG. 3 in that steps S31, S32, and S40 are performed after step S30. Step S32 is the same processing as step S30A of the second embodiment. Hereinafter, contents different from the first embodiment and the second embodiment will be described.

  The system control unit 100 repeatedly executes the determination processing of step S20 and the determination processing of step S31 while the air-conditioning operation control set by each remote controller is continued.

  After executing the acceleration air-conditioning control in step S30, in step S31, after a lapse of a predetermined time from the execution of the acceleration air-conditioning control, it is determined whether or not there is an area in which the thermo-off execution condition is still not satisfied. That is, in step S31, it is determined whether or not there is an air conditioning area that has not yet reached the thermo-off temperature even though the acceleration air conditioning control has been continued for a predetermined time.

  When all areas have reached the thermo-off temperature in step S31, normal thermo-off is performed in step S10B, and the process returns to step S10 again to continue the air-conditioning operation control. If there is an area for which the thermo-off execution condition is not satisfied in step S31, the same thermo-off process as in step S30A of the second embodiment is executed in step S32. Then, similarly to the second embodiment, the start opening degree process of the damper device is performed in step S40, and the process returns to step S10 to wait for the next air conditioning operation.

  If the determination in step S31 is YES, it means that all the air conditioning areas have not yet reached the thermo-off temperature even though the acceleration air conditioning control has been continued for a predetermined time. Even if the acceleration air-conditioning control is continued further, it takes more time to reach the thermo-off temperature, so the air-conditioning is immediately stopped in step S30A. By this processing, it is possible to prevent the degree of excessive cooling or the degree of excessive warming from further advancing.

  The air-conditioning system 1 according to the fourth embodiment performs a thermo-off process of stopping air-conditioning for all air-conditioning areas when there is an air-conditioning area that does not satisfy the thermo-off temperature after a predetermined time has elapsed after performing the acceleration air-conditioning control. Is carried out. According to this configuration, even if the acceleration air conditioning control is performed for a predetermined time, the air conditioning is forcibly stopped when not all the air conditioning areas are in the thermo-off state. As a result, the implementation time of the acceleration air-conditioning control can be reduced, energy can be saved, and all the air-conditioning areas can be quickly escaped from being too cold or too warm.

(Fifth embodiment)
A fifth embodiment will be described with reference to FIGS. As shown in FIG. 11, the air conditioning system 1 of the fifth embodiment includes a target area operation unit that can set an air conditioning area to be determined in step S20A of FIG. 12 by an operation of a user or the like. The air-conditioning area excluded from the determination target in step S20A by the operation of the target area operation unit is recognized as the excluded area in the determination processing in step S11. As described above, the exclusion area is an area that can be set by a user or the like, and an area that is desired to be excluded from a target of acceleration air conditioning control or the like can be set according to the user's preference. The user etc., as the excluded areas, for example, an air-conditioning area with a low use frequency, an area with a low air-conditioning load with respect to other areas, an area with a high air-conditioning load with respect to other areas, an area that does not require air conditioning, and the like. Can be set.

  The main remote controller 16 includes a target area operation unit 16b that can set whether or not at least the first area 21 is to be determined in step S20A. The target area operation unit 16b may be configured to be able to set other remaining areas in addition to the first area 21. In the case of this configuration, the target area operation unit 16b determines whether to determine not only the first area 21 but also at least one of the second area 22, the third area 23, the fourth area 24, and the fifth area 25. This is an operation unit for setting whether or not to perform the operation. The system control unit 100 is configured to receive a setting signal related to a setting area corresponding to an operation of the target area operation unit 16b.

  The individual remote controller 161 includes a target area operation unit 161b that can set whether or not the second area 22 is to be determined in step S20A. The system control unit 100 is configured to receive a setting signal related to a setting area corresponding to an operation of the target area operation unit 161b. The individual remote controller 162 includes a target area operation unit 162b that can set whether or not the third area 23 is to be determined in step S20A. The system control unit 100 is configured to receive a setting signal related to a setting area corresponding to an operation of the target area operation unit 162b. The individual remote controller 163 includes a target area operation unit 163b that can set whether or not the fourth area 24 is to be determined in step S20A. The system control unit 100 is configured to receive a setting signal related to a setting area according to an operation of the target area operation unit 163b. The individual remote controller 164 includes a target area operation unit 164b that can set whether or not the fifth area 25 is to be determined in step S20A. The system control unit 100 is configured to receive a setting signal related to a setting area corresponding to an operation of the target area operation unit 164b.

  The flowchart of FIG. 12 is different from the flowchart described in the second embodiment in that the determination process of step S11 is performed after step S10. The system control unit 100 repeatedly performs the determination processing of step S11, step S20, and step S20A while the air conditioning operation control set by each remote controller is continued.

  The system control unit 100 determines whether there is an exclusion area in step S11. If the exclusion area has not been set in step S11, the determination process of step S20 is executed. If the determination in step S20 is YES, step S30A and step S40 are sequentially executed.

  If the exclusion area is set in step S11, it is detected in step S20A whether the temperature of each set air conditioning area satisfies the thermo off execution condition, and the thermo off execution condition is satisfied for at least one air conditioning area. It is determined whether or not. In step S20A, a determination process is performed in the same manner as in step S20 of the first embodiment.

  If the thermo-off execution condition is satisfied for any of the set areas that are not excluded and the remaining air conditioning areas are not satisfied, a YES determination is made in step S20A. If all the air conditioning areas are not satisfied among the set areas, a NO determination is made in step S20A.

  If the determination in step S20A is NO, all set areas have not yet reached the thermo-off temperature and are not too cold or too warm, so the process returns to step S10 to continue the air conditioning operation control. If the determination is YES in step S20A, the system control unit 100 sequentially executes step S30A and step S40, returns to step S10, and waits for the next air conditioning operation.

  The air conditioning system 1 according to the fifth embodiment includes a target area operation unit that can set an air conditioning area for determining whether or not a thermo-off temperature is satisfied. In step S20A, the air conditioning system 1 determines whether there is at least one air conditioning area that satisfies the thermo-off temperature among the plurality of air conditioning areas set by operating the target area operation unit.

  According to this configuration, it is possible to set a non-air-conditioning area that does not require air-conditioning capability as an exclusion area by a user's judgment. Thus, it is possible to provide the air conditioning system 1 that can perform acceleration air conditioning control or the like that is suitable for the user's preference and convenience. Also, in areas with high air-conditioning loads and areas with large amounts of solar radiation and heat radiation even when there are few or no people, it is difficult to reach the thermo-temperature even if acceleration air-conditioning control is performed, which may increase the time required for acceleration air-conditioning control. Can be. The air-conditioning system 1 according to the fifth embodiment can provide the air-conditioning operation control that can reduce the time of the acceleration air-conditioning control and quickly bring the vehicle to a high comfort state by setting such an area as the excluded area.

(Sixth embodiment)
A sixth embodiment will be described with reference to FIGS. As shown in FIG. 13, the air-conditioning system 1 according to the sixth embodiment has a function in which the occupancy detection device 17 can automatically detect an air-conditioning area where a person is present, which is a determination target in step S20B of FIG. 14. It has. The air-conditioning area in which the presence of a person cannot be detected by the occupancy detecting device 17 is an area with a low air-conditioning load because there is no heating element such as a person, and is recognized as an absent area in the determination processing in step S11A. As the occupancy detection device 17, for example, a human sensor, a heat ray sensor, a thermographic camera, or the like can be adopted. The system control unit 100 has a configuration in which a signal of a detection result by the occupancy detection device 17 is input.

  The flowchart of FIG. 14 differs from the flowchart described in the fifth embodiment in that steps S11 and S20A of FIG. 12 are replaced with steps S11A and S20B. The system control unit 100 repeatedly executes the determination processing of step S11A, step S20, and step S20B while the air conditioning operation control set by each remote controller is continued.

  In step S11A, the system control unit 100 determines whether or not there is an unoccupied area without a person in the plurality of air-conditioning areas based on the detection result by the occupancy detection device 17. If there is no absent area in step S11A, the determination process of step S20 is performed, and if the determination is YES in step S20, step S30A and step S40 are sequentially performed.

  If there is an absent area in step S11A, it is detected in step S20B whether the temperature of the occupied area excluding the absent area satisfies the thermo-off execution condition, and whether the thermo-off execution condition is satisfied for at least one occupied area. Determine whether or not. In step S20B, a determination process is performed in the same manner as in step S20 of the first embodiment.

  If the thermo-off execution condition is satisfied for any of the occupied areas and the remaining areas are not satisfied, a YES determination is made in step S20B. If all areas are unsatisfied, a NO determination is made in step S20B.

  If the determination in step S20B is NO, all the occupied areas have not yet reached the thermo-off temperature and are not too cold or too warm, so the flow returns to step S10 to continue the air-conditioning operation control. If the determination is YES in step S20B, the system control unit 100 sequentially executes step S30A and step S40, returns to step S10, and waits for the next air conditioning operation.

  The air conditioning system 1 according to the sixth embodiment includes an occupancy detection device 17 that can detect an air conditioning area where a person is occupied. The air-conditioning system 1 determines whether there is at least one air-conditioning area that satisfies the thermo-off temperature for a plurality of air-conditioning areas in which the presence of a person has been detected by the occupancy detection device 17. According to this configuration, it is possible to set an air-conditioning area where no person is present and does not require air-conditioning capability as an exclusion area by automatic driving, instead of relying on human judgment. This makes it possible to provide the air-conditioning system 1 that can execute accelerated air-conditioning control or the like suitable for the fact of the presence of a person without the trouble of setting by the person.

(Seventh embodiment)
In the seventh embodiment, with respect to other control executed by the air conditioning system 1, contents different from the first embodiment will be described with reference to FIG. The flowchart of FIG. 15 differs from the flowchart of the first embodiment described with reference to FIG. 3 in that the determination process of step S22 is performed after step S20.

  If the determination is YES in step S20, the acceleration air-conditioning control is not started until the predetermined standby time has elapsed in step S22. When the predetermined standby time has elapsed, the accelerated air-conditioning control in step S30 is executed. In other words, when the determination is YES in step S20, the acceleration air-conditioning control is not immediately performed, but when such a state continues for a while, the acceleration air-conditioning control is executed to reduce the air-conditioning output of the indoor unit 10. Raise or increase the air flow to reach the thermo-off temperature early.

  The air-conditioning system 1 of the seventh embodiment starts accelerated air-conditioning control after a lapse of a standby time from when one of the air-conditioning areas satisfies the thermo-off temperature. According to this, a YES determination is made because a temporary change in room temperature has occurred due to a temporary change in the amount of solar radiation from the outside or a temporary change in the number of sitting rooms, and the acceleration air conditioning control is immediately started. Can be prevented. In addition, when the difference between the air conditioning loads in the plurality of air conditioning areas is small and the temperature is slightly small until the thermo-off temperature is reached, it is possible to suppress excessive cooling or over-heating by the normal thermo-off processing without executing the acceleration air conditioning control. .

(Eighth embodiment)
In the eighth embodiment, with respect to other control executed by the air conditioning system 1, contents different from the second embodiment will be described with reference to FIG. The flowchart of FIG. 16 differs from the flowchart of the second embodiment described with reference to FIG. 8 in that the determination process of step S23 is performed after step S20.

  If the determination is YES in step S20, the thermo-off process is not started until the predetermined standby time has elapsed in step S23, and when the predetermined standby time has elapsed, the thermo-off process in step S30A is executed. That is, when the determination is YES in step S20, the thermo-off process is not executed immediately, but when such a state continues for a while, the thermo-off process can be executed to suppress excessive cooling or overheating. .

  The air-conditioning system 1 according to the seventh embodiment starts the thermo-off process after a predetermined standby time has elapsed from when at least one air-conditioning area that satisfies the thermo-off temperature out of the plurality of air-conditioning areas. According to this, a YES determination is made because a temporary change in room temperature has occurred due to a temporary change in the amount of solar radiation from the outside or a temporary change in the number of sitting rooms, and the thermo-off process is started immediately. Can be prevented.

(Ninth embodiment)
In the ninth embodiment, with respect to other control executed by the air conditioning system 1, contents different from the first embodiment will be described with reference to FIG. The flowchart of FIG. 17 is different from the flowchart of the first embodiment described with reference to FIG. 3 in that the accelerated air-conditioning control is executed in two steps of steps S30B and S30C.

  If the determination is YES in step S20, the system control unit 100 controls the indoor blower 101 to increase the blowing output as one of the accelerated air conditioning in step S30B. Thereby, the amount of air supplied to each air conditioning area increases, which contributes to reaching the thermo-off temperature early.

  The process in step S30B continues until it is determined in step S22 that the predetermined control time has elapsed. If the temperature of the air-conditioning area reaches the thermo-off temperature before the predetermined control time has elapsed, the normal thermo-off process described above is executed, so that the process of step S30 is stopped and the process returns to step S10. . If the temperature does not reach the thermo-off temperature even if step S30B is continued for a predetermined control time, a process of increasing the air conditioning output is executed in step S30C, and the process returns to step S10 to continue the air conditioning operation control. The system control unit 100 executes, for example, a process of increasing the output of the compressor 111 so as to increase the refrigerant discharge amount in step S30C. Further, the air conditioning system 1 of the ninth embodiment may be configured so that the order of step S30B and step S30C in the flowchart of FIG. 17 is reversed. Even with this configuration, when the output of the acceleration air conditioning control is not sufficient, the air conditioning can be stepwise enhanced.

  According to the ninth embodiment, the air conditioning can be strengthened when the output of the accelerated air conditioning control is not sufficient by executing the increase in the amount of blown air and the increase in the air conditioning output in stages, so that too early cooling or excessive heating can be performed. Can be suppressed.

(Other embodiments)
The disclosure of this specification is not limited to the illustrated embodiments. The disclosure includes the illustrated embodiments and variations based thereon based on those skilled in the art. For example, the disclosure is not limited to the combination of the components and elements shown in the embodiment, and can be implemented with various modifications. The disclosure can be implemented in various combinations. The disclosure may have additional parts that can be added to the embodiments. The disclosure includes those in which the components and elements of the embodiments are omitted. The disclosure encompasses the replacement or combination of parts, elements, between one embodiment and another. The disclosed technical scope is not limited to the description of the embodiments. The disclosed technical range is shown by the description of the claims, and should be construed to include all modifications within the meaning and scope equivalent to the description of the claims.

  The plurality of air-conditioning areas to be air-conditioned by the air-conditioning system 1 are not limited to the form and the number of areas disclosed in the above-described embodiment. In addition, the air conditioning system 1 targets a plurality of air conditioning areas set on a single floor or a plurality of air conditioning areas set over a plurality of floors.

  The air-conditioning system capable of achieving the object disclosed in the specification is not limited to the mode including one indoor unit disclosed in the above-described embodiment. The air conditioning system 1 may be configured to include a plurality of indoor units and air-condition a plurality of air conditioning areas.

1. Air-conditioning system 141-146, 151-156 ... Damper device (flow-path opening adjustment device)
16b, 161b, 162b, 163b, 164b ... target area operation unit 17 ... occupancy detection device, 101 ... indoor blower, 111 ... compressor

Claims (17)

An air conditioning system (1) for supplying conditioned air to each of a plurality of air conditioning areas,
An air conditioning system that performs accelerated air conditioning control to increase the speed at which the other air conditioning area reaches the thermo off temperature when there is at least one air conditioning area satisfying a thermo off temperature among the plurality of air conditioning areas. A flow path opening adjusting device (141, 142, 143, 145, 146, 151, 152, 153, 155, 156) for opening and closing the flow path of the conditioned air supplied to each of the plurality of air conditioning areas;
The air conditioning system according to claim 1, wherein the accelerated air conditioning control is performed by controlling the flow passage opening adjustment device such that the opening of the flow passage is increased. A compressor (111) for discharging a refrigerant circulating through a heat pump cycle;
The air conditioning system according to claim 2, wherein the accelerated air conditioning control further includes controlling the compressor so as to increase a refrigerant discharge amount. An indoor blower (101) for blowing conditioned air supplied to each of the plurality of air-conditioned areas,
The air conditioning system according to claim 2, wherein the accelerated air conditioning control further includes controlling the indoor blower such that an amount of the conditioned air is increased. A compressor (111) for discharging a refrigerant circulating through a heat pump cycle;
The air conditioning system according to claim 1, wherein the acceleration air conditioning control is performed by controlling the compressor so as to increase a refrigerant discharge amount and increasing an air conditioning output. An indoor blower (101) for blowing conditioned air supplied to each of the plurality of air-conditioned areas,
The air conditioning system according to claim 5, wherein the accelerated air conditioning control further includes controlling the indoor blower such that a blowing amount of the conditioned air is increased. An indoor blower (101) for blowing conditioned air supplied to each of the plurality of air-conditioned areas,
2. The air conditioning system according to claim 1, wherein the accelerated air conditioning control is performed by controlling the indoor blower such that a blowing amount of the conditioned air is increased. 3.   Of the plurality of air conditioning areas, when there is even one air conditioning area that satisfies the thermo-off temperature, the opening degree of the flow path opening degree adjustment device corresponding to all the air conditioning areas is a lower limit, or 5. The thermo-off process of stopping air conditioning for all of the air conditioning areas without performing the accelerated air conditioning control when the air conditioner is in a closed state. 6. An air conditioning system according to claim 1.   The method according to claim 1, wherein after a lapse of a predetermined time from the execution of the accelerated air-conditioning control, if there is an air-conditioning area that does not satisfy a thermo-off temperature, a thermo-off process for stopping air conditioning for all the air-conditioning areas is performed. Item 8. The air conditioning system according to any one of items 7.   The air conditioning system according to any one of claims 1 to 9, wherein the accelerated air conditioning control is started after a lapse of a standby time from when one of the plurality of air conditioning areas reaches a thermo-off temperature. An air conditioning system (1) for supplying conditioned air to each of a plurality of air conditioning areas,
An air conditioning system that performs a thermo-off process of stopping air conditioning for all the air-conditioning areas when there is at least one air-conditioning area satisfying a thermo-off temperature among the plurality of air-conditioning areas.   The air conditioning system according to claim 11, wherein the thermo-off process is started after a predetermined standby time has elapsed from when at least one air-conditioning area satisfying a thermo-off temperature exists among the plurality of air-conditioning areas.   The air conditioning system according to claim 11 or 12, wherein after performing the thermo-off processing, the damper device corresponding to the air-conditioning area satisfying the thermo-off temperature is set to an opening of a lower limit or an opening of closing a flow path. .   14. The method according to claim 11, wherein, after the execution of the thermo-off processing, the damper device corresponding to the air-conditioning area not satisfying the thermo-off temperature is set to an upper limit opening or an opening in which a flow path is opened. The air conditioning system according to the paragraph.   The air conditioning system according to any one of claims 1 to 14, wherein the plurality of air conditioning areas are all air conditioning areas to which the air conditioning system supplies conditioned air. A target area operation unit (16b, 161b, 162b, 163b, 164b) capable of setting an air-conditioning area for determining whether or not the thermo-off temperature is satisfied;
The method according to any one of claims 1 to 14, wherein it is determined whether there is at least one air conditioning area satisfying the thermo-off temperature for the plurality of air conditioning areas set by the operation of the target area operation unit. Air conditioning system. An occupancy detection device (17) that can detect an air-conditioned area where a person is occupied;
15. The method according to claim 1, wherein it is determined whether there is at least one air-conditioning area satisfying the thermo-off temperature for the plurality of air-conditioning areas in which the presence of a person is detected by the presence detection device. 15. The air conditioning system according to the paragraph.

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