JP7004584B2 - Air conditioning system - Google Patents

Description

The present invention relates to an air conditioning system that air-conditions a living room in a building.

In Patent Document 1, the underfloor space of a double floor is used as an air supply path for air conditioning or ventilation, and an opening is provided on the floor surface of each living room with a damper that can adjust the air volume, and cold air from an indoor unit or An air conditioning system is disclosed in which warm air is supplied from an opening according to the air conditioning load of each living room to harmonize the air in each living room.

Japanese Patent No. 5137599

The air forming the cold air sent out from the indoor unit during the cooling operation has a higher relative humidity than the air taken into the indoor unit.

When the installation location of the indoor unit and the room subject to air conditioning are separated, the air supply air passage connecting the indoor unit and the living room becomes long, and the air with high relative humidity staying in the air supply air passage is naturally supplied. It is difficult to be discharged from the air passage. Therefore, in the invention disclosed in Patent Document 1, after the cooling operation is stopped, the air having a high relative humidity stays in the air supply air passage for a long time, and dew condensation or mold is likely to occur in the air supply air passage. There was a problem.

The present invention has been made in view of the above, and is to obtain an air conditioning system that suppresses the generation of dew condensation or mold in the air supply air passage leading from the indoor unit to the living room different from the installation location of the indoor unit. The purpose.

In order to solve the above-mentioned problems and achieve the object, the present invention has a heat exchanger that heats or cools air, a blower that sends air through the heat exchanger, and an operation control that controls the heat exchanger and the blower. It is provided with an indoor unit equipped with a unit and an air supply air passage that allows air sent from a heat exchanger by a blower to pass through a living room different from the installation location of the indoor unit. The operation control unit continues the operation of the blower for a certain period of time after stopping the cooling operation of cooling the air with the heat exchanger.

According to the present invention, there is an effect that dew condensation or mold can be suppressed from forming in the air supply air passage leading from the indoor unit to the living room different from the installation location of the indoor unit.

The figure which shows the structure of the air conditioning system which concerns on Embodiment 1 of this invention. Functional block diagram of the air conditioning system according to the first embodiment A flowchart showing the flow of operation of the air conditioning system according to the first embodiment. Functional block diagram of the operation control unit of the air conditioning system according to the second embodiment of the present invention. A flowchart showing the flow of operation of the air conditioning system according to the second embodiment. The figure which shows the structure which realized the function of the operation control part which concerns on Embodiment 1 or Embodiment 2 by hardware. The figure which shows the structure which realized the function of the operation control part which concerns on Embodiment 1 or Embodiment 2 by software.

Hereinafter, the air conditioning system according to the embodiment of the present invention will be described in detail with reference to the drawings. The present invention is not limited to this embodiment.

Embodiment 1.
FIG. 1 is a diagram showing a configuration of an air conditioning system according to the first embodiment of the present invention. The air conditioning system 50 according to the first embodiment is a return connecting the indoor unit 1 installed inside the building 4, the heat pump units 2a and 2b installed outside the building 4, the living room 42 and the indoor unit 1. It has an air passage 43, an air supply air passage 41 leading to an air outlet 32 provided on the floor of the living room 42, and an air duct 44 connecting the indoor unit 1 and the air supply air passage 41. The indoor unit 1 has a heat exchanger 12 connected to the heat pump units 2a and 2b at the refrigerant flow paths 21a and 21b. The heat exchanger 12 forms one refrigerating cycle with the heat pump unit 2a and the refrigerant flow path 21a, and forms another refrigerating cycle with the heat pump unit 2b and the refrigerant flow path 21b. That is, the heat exchanger 12 comprises two independent refrigeration cycles. The heat exchanger 12 exchanges heat between the air taken in from the living room 42 and the refrigerant circulating between the heat pump units 2a and 2b through the refrigerant flow paths 21a and 21b. Further, the indoor unit 1 has a blower 11 that sends the heat-exchanged air to the air supply air passage 41 through the blower duct 44.

The air supply air passage 41 is a space sandwiched between the foundation 45 of the building 4 and the building material 46, and leads from the indoor unit 1 to the living room 42 different from the installation location of the indoor unit 1. The air supply air passage 41 passes the air sent from the heat exchanger 12 by the blower 11 to the living room 42 different from the installation location of the indoor unit 1. A heat insulating layer 47 is formed on the surface of the foundation 45. Further, a water-repellent layer 48 is formed on the surface of the building material 46. A non-water-absorbent material may be applied to the building material 46, and the water-repellent layer 48 may be omitted. Examples of the building material 46 include floor materials, pillar materials, and wall materials. In FIG. 1, the air supply air passage 41 is provided in the underfloor space, but may be provided in the space behind the ceiling or in the space between the inner wall and the outer wall. Further, the air supply air passage 41 may be a dedicated duct installed in the building 4.

The indoor unit 1 includes an operation control unit 13 that controls the air conditioning system 50. The room controller 31 installed in the living room 42 can communicate with the operation control unit 13.

The air after heat exchange sent to the air supply air passage 41 by the blower 11 is supplied to the living room 42 from the air outlet 32 provided on the floor of the living room 42 in the building 4, and the living room 42 is air-conditioned. Since the air in the air-conditioned living room 42 returns to the indoor unit 1 through the return air passage 43, the air conditioning of the living room 42 is performed while circulating the air in the building 4.

FIG. 2 is a functional block diagram of the air conditioning system according to the first embodiment. The room controller 31 receives a room temperature detection unit 313 that detects the room temperature of the living room 42, a notification unit 311 that notifies the user by a visual or auditory method such as a character string, an image, and a voice, and a user input operation. It has an operation unit 312 which is a user interface. A liquid crystal display device and a speaker can be exemplified in the notification unit 311. A touch panel and a keyboard can be exemplified as the operation unit 312.

The operation control unit 13 stops the cooling operation, the integrated control unit 131 that sends an operation instruction to the blower 11 and the heat exchanger 12 to control the air conditioning operation, the blower operation time measurement unit 132 that measures the operation time of the blower 11. Whether or not to perform dehumidification operation is performed by the blower operation continuation time storage unit 133 that stores the time for continuing the operation of the blower 11 and the heat exchanger operation time measurement unit 134 that measures the operation time of the heat exchanger 12. It has a dehumidifying operation determination unit 135 for determining, and a blower continuous operation end determination unit 136 for determining whether or not to terminate the operation of the blower 11. Information on the operating time of the blower 11 is sent from the blower operating time measuring unit 132 to the integrated control unit 131. Further, information on the time when the heat exchanger 12 has performed the cooling operation, the heating operation, or the dehumidifying operation is sent to the integrated control unit 131 from the heat exchanger operation time measuring unit 134. The integrated control unit 131 controls the air conditioning operation based on the information received from the blower operation time measurement unit 132 and the heat exchanger operation time measurement unit 134.

The room controller 31 is communicably connected to the integrated control unit 131, and information is transmitted and received to and from each other. To give a specific example, information on the operation received by the operation unit 312 of the room controller 31 and information on the room temperature detected by the room temperature detection unit 313 are sent to the integrated control unit 131. Further, the control content determined by the integrated control unit 131 is sent to the room controller 31, and the notification unit 311 notifies the user.

The blower operation duration storage unit 133 has a first determination time used to determine whether or not the heat exchanger 12 has been operated for longer than a certain period of time during the cooling operation, and a cooling operation stop. The second determination time, which is the duration of the blower operation used to later determine whether or not the blower 11 has been operated independently for a certain period of time, and the dehumidifying operation by the heat exchanger 12 after the cooling operation is stopped, the blower 11 is operated for a certain period of time. The third determination time, which is the operation duration of the blower used to determine whether or not the air conditioner has been operated, is stored.

The dehumidifying operation determination unit 135 includes an air humidity detection unit 14 that measures the humidity of the air downstream of the heat exchanger 12, and a heat exchanger 12 that measures the temperature of the air upstream of the heat exchanger 12. The pre-heat exchange air temperature detector 15 that estimates the humidity of the air downstream of the heat exchanger 12 measures the temperature of the air downstream of the heat exchanger 12, and determines the humidity of the air downstream of the heat exchanger 12. At least one of the estimated heat exchange post-heat exchange air temperature detection unit 16 is connected. The pre-heat exchange air temperature detection unit 15 and the post-heat exchange air temperature detection unit 16 may calculate the humidity of the air downstream of the heat exchanger 12 based on the temperature measurement results, or the temperature measurement results. And the humidity of the air downstream of the heat exchanger 12 may be estimated with reference to the table associated with the humidity of the air downstream of the heat exchanger 12. Further, the dehumidifying operation determination unit 135 has the first determination condition of the dehumidifying operation used for determining whether or not the dehumidifying operation after the cooling operation is necessary, and whether the dehumidifying operation after the cooling operation is no longer necessary. The second determination condition of the dehumidifying operation used to determine whether or not it is stored is stored. The first determination condition of the dehumidification operation is that the humidity of the air downstream of the heat exchanger 12 is higher than the first humidity, and the second determination condition of the dehumidification operation is that the humidity of the air downstream of the heat exchanger 12 is higher than that of the heat exchanger 12. The humidity of the air on the downstream side is lower than that of the second humidity. Therefore, the first humidity is a threshold value in determining whether or not the dehumidifying operation after the cooling operation is necessary, and the second humidity is the threshold value in determining whether or not the dehumidifying operation after the cooling operation is necessary. Is the threshold value of. The second humidity is equal to or lower than the first humidity.

The air humidity detection unit 14 is installed in the air supply air passage 41, and transmits information on the humidity of the air in the air supply air passage 41 to the dehumidifying operation determination unit 135. The air humidity detection unit 14 is built in the room controller 31 or the indoor unit 1, measures the humidity of the air in the living room 42 or the return air passage 43, and estimates the humidity of the air downstream of the heat exchanger 12. May be good. When the dehumidifying operation determination unit 135 makes a determination based on the information received from the air humidity detection unit 14, the dehumidification operation determination unit 135 dehumidifies when the humidity of the air in the air supply air passage 41 is higher than the first humidity. It is determined that the first determination condition of the operation is satisfied, and when the humidity becomes lower than the second humidity, it is determined that the second determination condition of the dehumidification operation is satisfied.

The humidity on the downstream side of the heat exchanger 12 estimated by the air temperature detection unit 15 before heat exchange is higher than the first humidity when the temperature of the air before heat exchange is higher than the first temperature. When the temperature is lower than the second temperature, the value is lower than the second humidity. Therefore, when the dehumidifying operation determination unit 135 makes a determination based on the humidity of the air downstream of the heat exchanger 12 estimated by the pre-heat exchange air temperature detection unit 15, the dehumidification operation determination unit 135 uses the heat exchanger 12. When the temperature of the air on the upstream side is higher than the first temperature, it is determined that the first determination condition of the dehumidifying operation is satisfied, and when the temperature is lower than the second temperature, the second determination of the dehumidifying operation is performed. It is determined that the condition is satisfied. That is, the first determination condition of the dehumidification operation stored in the dehumidification operation determination unit 135 is the first temperature, and the second determination condition of the dehumidification operation is the second temperature. Therefore, the first temperature is a threshold value for determining whether or not the dehumidifying operation after the cooling operation is necessary, and the second temperature is the threshold value for determining whether or not the dehumidifying operation after the cooling operation is necessary. Is the threshold value of. The pre-heat exchange air temperature detecting unit 15 is provided in the indoor unit 1 on the upstream side of the heat exchanger 12. The room temperature detection unit 313 of the room controller 31 may also serve as the air temperature detection unit 15 before heat exchange.

The humidity of the air downstream of the heat exchanger 12 estimated by the air temperature detector 16 after heat exchange is the first when the temperature of the air downstream of the heat exchanger 12 is lower than the third temperature. The value is higher than the humidity of 1, and when the temperature is higher than the fourth temperature, the value is lower than the second humidity. Therefore, when the dehumidifying operation determination unit 135 makes a determination based on the humidity of the air downstream of the heat exchanger 12 estimated by the air temperature detection unit 16 after heat exchange, the dehumidification operation determination unit 135 uses the heat exchanger 12. When the temperature of the air on the downstream side is lower than the third temperature, it is determined that the first determination condition of the dehumidifying operation is satisfied, and when the temperature is higher than the fourth temperature, the second determination of the dehumidifying operation is performed. It is determined that the condition is satisfied. That is, the first determination condition of the dehumidification operation stored in the dehumidification operation determination unit 135 is the third temperature, and the second determination condition of the dehumidification operation is the fourth temperature. Therefore, the third temperature is a threshold value for determining whether or not the dehumidifying operation after the cooling operation is necessary, and the fourth temperature is the threshold value for determining whether or not the dehumidifying operation after the cooling operation is necessary. Is the threshold value of.

In the dehumidifying operation determination unit 135, the air humidity detecting unit 14 determines whether or not the first determination condition of the dehumidifying operation is satisfied and whether or not the second determination condition of the dehumidifying operation is satisfied. The measured air humidity downstream of the heat exchanger 12, the air humidity downstream of the heat exchanger 12 estimated by the pre-heat exchange air temperature detector 15, and the post-heat exchange air temperature detector 16 estimated. A different type of air downstream of the heat exchanger 12 may be used.

The first determination condition of the dehumidifying operation is that the relative humidity of the air downstream of the heat exchanger 12 is 90% or more, and the relative humidity of the air downstream of the heat exchanger 12 is less than 70%. By setting this as the second determination condition for the dehumidifying operation, it is possible to prevent the inside of the air supply air passage 41 from becoming in a high humidity state.

When performing the dehumidifying operation, the two heat pump units 2a and 2b are heated on one side and cooled on the other side, so that the air is cooled and dehumidified by the heat exchanger 12 and then heated again. The reheat dehumidification operation can be performed to prevent the temperature of the living room 42 from dropping.

FIG. 3 is a flowchart showing the flow of operation of the air conditioning system according to the first embodiment. In step S1, when the integrated control unit 131 stops the cooling operation, the blower operation time measuring unit 132 resets the operation time of the blower 11. In step S2, the integrated control unit 131 first determines the operating time of the heat exchanger 12 during the cooling operation based on the information on the operating time of the heat exchanger 12 received from the heat exchanger operating time measuring unit 134. Determine if it was longer than the time. If the operating time of the heat exchanger 12 during the cooling operation is longer than the first determination time, Yes in step S2 and the process proceeds to step S3. If the operating time of the heat exchanger 12 during the cooling operation is equal to or less than the first determination time, the result is No in step S2, and the process proceeds to step S9.

In step S3, the dehumidifying operation determination unit 135 satisfies the first determination condition of the dehumidifying operation and determines whether or not the dehumidifying operation is necessary. If the first determination condition of the dehumidifying operation is satisfied, the result is Yes in step S3, and the process proceeds to step S6. If the first determination condition of the dehumidifying operation is not satisfied, the result is No in step S3, and the process proceeds to step S4.

In step S4, the integrated control unit 131 continues the operation of the blower 11. In step S5, is the integrated control unit 131 longer than the second determination time after the cooling operation is stopped, based on the information on the operation time of the blower 11 received from the blower operation time measurement unit 132? Judge whether or not. If the operating time of the blower 11 after the cooling operation is stopped is longer than the second determination time, the result is Yes in step S5, and the process proceeds to step S9. If the operation time of the blower 11 after the cooling operation is stopped is equal to or less than the second determination time, the result is No in step S5, and the process returns to step S4.

In step S6, the integrated control unit 131 starts dehumidification by the heat exchanger 12 and continues the operation of the blower 11 to perform the dehumidification operation. In step S7, the dehumidifying operation determination unit 135 satisfies the second determination condition of the dehumidifying operation and determines whether or not the dehumidifying operation is no longer necessary. If the second determination condition of the dehumidifying operation is satisfied, the result is Yes in step S7, and the process proceeds to step S9. If the second determination condition of the dehumidifying operation is not satisfied, the result is No in step S7, and the process proceeds to step S8.

In step S8, is the integrated control unit 131 longer than the third determination time after the cooling operation is stopped, based on the information on the operation time of the blower 11 received from the blower operation time measurement unit 132? Judge whether or not. If the operating time of the blower 11 after the cooling operation is stopped is longer than the third determination time, the result is Yes in step S8, and the process proceeds to step S9. If the operation time of the blower 11 after the cooling operation is stopped is equal to or less than the third determination time, the result is No in step S8, and the process returns to step S7.

In step S9, the integrated control unit 131 stops the operation of the blower 11 and the heat exchanger 12. In step S10, the blower operation time measuring unit 132 resets the operation time of the blower 11. Further, the heat exchanger operating time measuring unit 134 resets the operating time of the heat exchanger 12.

As described above, the air conditioning system 50 according to the first embodiment continues the operation of the blower 11 after the cooling operation is completed, and when the inside of the air supply air passage 41 is in high humidity, the dehumidification operation by the heat exchanger 12 is performed. Therefore, it is possible to shorten the time until the state of high humidity in the air supply air passage 41 is resolved after the cooling operation is completed. Therefore, the air conditioning system 50 according to the first embodiment can prevent the generation of dew condensation and suppress the generation of mold. Further, the air conditioning system 50 according to the first embodiment can reduce the power consumption by performing the dehumidifying operation only when the inside of the air supply air passage 41 is in high humidity. Further, in the air conditioning system 50 according to the first embodiment, the blower 11 is stopped when the state of high humidity in the air supply air passage 41 is resolved, so that the power consumption can be reduced.

The blower operation duration storage unit 133 may store a plurality of second determination time and third determination time having a positive correlation with the length of time during which the cooling operation is performed. By storing a plurality of the second determination time and the third determination time in the blower operation continuation time storage unit 133, the time for continuing the operation of the blower 11 can be changed according to the length of the cooling operation. , Power consumption can be reduced. Further, since the air conditioning system 50 according to the first embodiment is provided with the water-repellent layer 48 on the surface of the building material 46, deterioration of the building material 46 can be suppressed and mold can be suppressed from being generated in the air supply air passage 41.

Embodiment 2.
FIG. 4 is a functional block diagram of the operation control unit of the air conditioning system according to the second embodiment of the present invention. The operation control unit 13 of the air conditioning system 50 according to the second embodiment does not include the blower operation time measurement unit 132, the blower operation continuation time storage unit 133, the dehumidification operation determination unit 135, and the blower continuous operation end determination unit 136. Further, the operation control unit 13 of the air conditioning system 50 according to the second embodiment has a maintenance determination unit 137 for determining whether or not maintenance is necessary. Other than this, it is the same as the operation control unit 13 of the air conditioning system 50 according to the first embodiment.

FIG. 5 is a flowchart showing the operation flow of the air conditioning system according to the second embodiment. In step S11, the integrated control unit 131 stops the cooling operation. In step S12, the maintenance determination unit 137 determines whether or not the integrated time of the cooling operation of the heat exchanger 12 stored in the integrated control unit 131 exceeds the time threshold value. If the integrated time of the cooling operation of the heat exchanger 12 exceeds the time threshold, Yes in step S12 and the process proceeds to step S13. If the integrated time of the cooling operation of the heat exchanger 12 does not exceed the time threshold value, No in step S12 and the process proceeds to step S14.

In step S13, the integrated control unit 131 outputs information indicating that maintenance is necessary from the notification unit 311 and notifies the user. The information notified to the user by the notification unit 311 prompts the inspection or cleaning of the air supply air passage 41, and a method of displaying a sentence on the display, a method of notifying by voice, and a method of displaying a specific error code. It can be exemplified. In addition, a contract is made with a housing management company, a housing maintenance company, or a maintenance company for an air conditioning system 50, maintenance information is directly notified to the management company or maintenance company, and the management company or maintenance company announces the maintenance time to the user. You may do so.

In step S14, the integrated control unit 131 updates and stores the integrated time of the cooling operation of the heat exchanger 12.

In step S15, the integrated control unit 131 stops the operation of the blower 11 and the heat exchanger 12.

By resetting the integrated cooling operation time after performing appropriate inspections and cleaning by the management company, maintenance company, or user, it is possible to continuously notify the user of the maintenance time at an appropriate timing. In periodically notifying the maintenance time, the same integrated time may be used for the integrated time of the cooling operation for determining the maintenance time each time, or as the number of times of notification of maintenance information increases, the integrated time until the next maintenance. May be shortened.

In the above description, the necessity of maintenance is determined based on whether or not the integrated cooling operation time of the heat exchanger 12 exceeds the threshold value, but the air temperature detection unit 16 after heat exchange is the same as in the first embodiment. The time when the air temperature on the downstream side of the heat exchanger 12 detected by the air temperature detection unit 16 after heat exchange during the cooling operation exceeds the threshold value is integrated, and the integrated time is determined for maintenance. Maintenance information may be notified when the standard is exceeded. Further, as in the first embodiment, the air humidity detection unit 14 is provided, and the air humidity detection unit 14 detects the humidity of the air downstream of the heat exchanger 12 during the cooling operation, and the heat exchanger is provided. The time when the humidity of the air on the downstream side of 12 exceeds the threshold value may be accumulated, and the maintenance information may be notified when the integrated time exceeds the maintenance determination standard.

In the above description, in the air conditioning system 50 according to the second embodiment, the operation control unit 13 has a blower operation time measurement unit 132, a blower operation continuation time storage unit 133, a dehumidification operation determination unit 135, and a blower continuous operation end determination unit. Although 136 is not provided, a maintenance determination unit 137 may be added to the operation control unit 13 of the air conditioning system 50 according to the first embodiment.

The function of the operation control unit 13 of the first embodiment or the second embodiment is realized by the processing circuit. That is, the operation control unit 13 is a process of continuing the operation of the blower 11 for a certain period of time after stopping the cooling operation of cooling the air in the heat exchanger 12, and the maintenance determination unit 137 determines that the operation time of the cooling operation exceeds the threshold value. Is provided with a processing circuit that performs a process of notifying the user of information prompting maintenance of the air supply air passage 41 from the notification unit 311 when the determination is made. Further, the processing circuit may be dedicated hardware or an arithmetic unit that executes a program stored in the storage device.

If the processing circuit is dedicated hardware, the processing circuit may be a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, an application-specific integrated circuit, a field programmable gate array, or a combination thereof. Applies to. FIG. 6 is a diagram showing a configuration in which the functions of the operation control unit according to the first embodiment or the second embodiment are realized by hardware. In the processing circuit 29, a process of continuing the operation of the blower 11 for a certain period of time after stopping the cooling operation of cooling the air by the heat exchanger 12, and a maintenance determination unit 137 indicating that the operation time of the cooling operation exceeds the threshold value. A logic circuit 29a that realizes a process of notifying the user of information prompting maintenance of the air supply air passage 41 from the notification unit 311 when the determination is made is incorporated.

When the processing circuit 29 is a computing device, it is determined that the process of continuing the operation of the blower 11 for a certain period of time after stopping the cooling operation of cooling the air with the heat exchanger 12 and the operation time of the cooling operation exceed the threshold value. The process of notifying the user of the information prompting the maintenance of the air supply air passage 41 from the notification unit 311 when the unit 137 determines is realized by software, firmware, or a combination of software and firmware.

FIG. 7 is a diagram showing a configuration in which the functions of the operation control unit according to the first embodiment or the second embodiment are realized by software. The processing circuit 29 includes an arithmetic unit 291 that executes the program 29b, a random access memory 292 that the arithmetic unit 291 uses for the work area, and a storage device 293 that stores the program 29b. The program 29b stored in the storage device 293 is expanded on the random access memory 292 by the arithmetic unit 291 and executed by the blower 11 for a certain period of time after the cooling operation for cooling the air in the heat exchanger 12 is stopped. The process of continuing the operation of the air conditioner and the process of notifying the user of the information prompting the maintenance of the air supply air passage 41 when the maintenance determination unit 137 determines that the operation time of the cooling operation exceeds the threshold are realized. Will be done. The software or firmware is written in a programming language and is stored in the storage device 293. The arithmetic unit 291 can exemplify a central processing unit, but is not limited thereto.

The processing circuit 29 realizes each processing by reading and executing the program 29b stored in the storage device 293. That is, when the operation control unit 13 is executed by the processing circuit 29, the step of continuing the operation of the blower 11 for a certain period of time after stopping the cooling operation of cooling the air in the heat exchanger 12, and the cooling operation. When the maintenance determination unit 137 determines that the operation time exceeds the threshold value, the program 29b is stored in which the step of notifying the user of the information prompting the maintenance of the air supply air passage 41 from the notification unit 311 is executed as a result. A storage device 293 for the purpose is provided. It can also be said that the program 29b causes the computer to execute the above procedure and method.

The processing circuit 29 may be partially realized by dedicated hardware and partially realized by software or firmware.

As described above, the processing circuit 29 can realize each of the above-mentioned functions by hardware, software, firmware, or a combination thereof.

The configuration shown in the above-described embodiment shows an example of the content of the present invention, can be combined with another known technique, and is one of the configurations as long as it does not deviate from the gist of the present invention. It is also possible to omit or change the part.

1 Indoor unit, 2a, 2b Heat pump unit, 4 Building, 11 Blower, 12 Heat exchanger, 13 Operation control unit, 14 Air humidity detector, 15 Pre-heat exchange air temperature detector, 16 Post-heat exchange air temperature detector, 21a, 21b Refrigerator flow path, 29 processing circuit, 29a logic circuit, 29b program, 31 room controller, 32 air outlet, 41 air supply air passage, 42 living room, 43 return air air passage, 44 air duct, 45 foundation, 46 building materials, 47 Insulation layer, 48 water repellent layer, 50 air harmonization system, 131 integrated control unit, 132 blower operation time measurement unit, 133 blower operation duration storage unit, 134 heat exchanger operation time measurement unit, 135 dehumidification operation judgment unit, 136 blower Continuous operation end determination unit, 137 maintenance determination unit, 291 arithmetic unit, 292 random access memory, 293 storage device, 311 notification unit, 312 operation unit, 313 room temperature detection unit.

Claims (7)

An indoor unit including a heat exchanger that heats or cools air, a blower that sends out air passing through the heat exchanger, and an operation control unit that controls the heat exchanger and the blower.
It is provided with an air supply air passage that allows air sent from the heat exchanger by the blower to pass through a living room different from the installation location of the indoor unit.
The operation control unit
An air humidity detector that measures the humidity of the air downstream of the heat exchanger,
A dehumidifying operation determination unit that determines whether or not it is necessary to perform a dehumidifying operation that lowers the humidity of the air while continuing the operation of the blower.
It is equipped with a blower continuous operation end determination unit that determines whether or not to end the continued operation of the blower.
The dehumidifying operation determination unit determines that the dehumidifying operation is necessary when the humidity of the air downstream of the heat exchanger is higher than the threshold value.
The operation control unit continues the operation of the blower for a certain period of time after stopping the cooling operation for cooling the air with the heat exchanger, and when the dehumidification operation determination unit determines that the dehumidification operation is necessary. , While the operation of the blower is continued, the dehumidifying operation is also used.
The air conditioning system characterized in that the blower continuous operation end determination unit stops the blower when the dehumidification operation determination unit determines that it is not necessary to perform the dehumidification operation after the combined use of the dehumidification operation. .. An indoor unit including a heat exchanger that heats or cools air, a blower that sends out air passing through the heat exchanger, and an operation control unit that controls the heat exchanger and the blower.
It is provided with an air supply air passage that allows air sent from the heat exchanger by the blower to pass through a living room different from the installation location of the indoor unit.
The operation control unit
An air temperature detector before heat exchange that measures the temperature of the air upstream of the heat exchanger,
A dehumidifying operation determination unit that determines whether or not it is necessary to perform a dehumidifying operation that lowers the humidity of the air while continuing the operation of the blower.
It is equipped with a blower continuous operation end determination unit that determines whether or not to end the continued operation of the blower.
The dehumidifying operation determination unit determines that the dehumidifying operation is necessary when the temperature of the air upstream of the heat exchanger is higher than the threshold value.
The operation control unit continues the operation of the blower for a certain period of time after stopping the cooling operation for cooling the air with the heat exchanger, and when the dehumidification operation determination unit determines that the dehumidification operation is necessary. , While the operation of the blower is continued, the dehumidifying operation is also used.
The air conditioning system characterized in that the blower continuous operation end determination unit stops the blower when the dehumidification operation determination unit determines that it is not necessary to perform the dehumidification operation after the combined use of the dehumidification operation. .. An indoor unit including a heat exchanger that heats or cools air, a blower that sends out air passing through the heat exchanger, and an operation control unit that controls the heat exchanger and the blower.
It is provided with an air supply air passage that allows air sent from the heat exchanger by the blower to pass through a living room different from the installation location of the indoor unit.
The operation control unit
A post-heat exchange air temperature detector that measures the temperature of the air downstream of the heat exchanger,
A dehumidifying operation determination unit that determines whether or not it is necessary to perform a dehumidifying operation that lowers the humidity of the air while continuing the operation of the blower.
It is equipped with a blower continuous operation end determination unit that determines whether or not to end the continued operation of the blower.
The dehumidifying operation determination unit determines that the dehumidifying operation is necessary when the temperature of the air downstream of the heat exchanger is lower than the threshold value.
The operation control unit continues the operation of the blower for a certain period of time after stopping the cooling operation for cooling the air with the heat exchanger, and when the dehumidification operation determination unit determines that the dehumidification operation is necessary. , While the operation of the blower is continued, the dehumidifying operation is also used.
The air conditioning system characterized in that the blower continuous operation end determination unit stops the blower when the dehumidification operation determination unit determines that it is not necessary to perform the dehumidification operation after the combined use of the dehumidification operation. .. An indoor unit having two independent refrigeration cycles, a heat exchanger that heats or cools air, a blower that blows air through the heat exchanger, and an operation control unit that controls the heat exchanger and the blower. When,
It is provided with an air supply air passage that allows air sent from the heat exchanger by the blower to pass through a living room different from the installation location of the indoor unit.
The operation control unit
An air humidity detector that measures the humidity of the air downstream of the heat exchanger,
It is provided with a dehumidifying operation determination unit that determines whether or not it is necessary to perform a dehumidifying operation that lowers the humidity of the air while the operation of the blower is being continued.
The dehumidifying operation determination unit determines that the dehumidifying operation is necessary when the humidity of the air downstream of the heat exchanger is higher than the threshold value.
The operation control unit continues the operation of the blower for a certain period of time after stopping the cooling operation for cooling the air with the heat exchanger, and when the dehumidification operation determination unit determines that the dehumidification operation is necessary. , While the operation of the blower is continued, the dehumidifying operation is also used.
An air conditioning system characterized in that during the dehumidification operation, the heat exchanger cools the air on one side of the refrigeration cycle and heats the air on the other side of the refrigeration cycle to perform reheat dehumidification. An indoor unit having two independent refrigeration cycles, a heat exchanger that heats or cools air, a blower that blows air through the heat exchanger, and an operation control unit that controls the heat exchanger and the blower. When,
It is provided with an air supply air passage that allows air sent from the heat exchanger by the blower to pass through a living room different from the installation location of the indoor unit.
The operation control unit
An air temperature detector before heat exchange that measures the temperature of the air upstream of the heat exchanger,
It is provided with a dehumidifying operation determination unit that determines whether or not it is necessary to perform a dehumidifying operation that lowers the humidity of the air while the operation of the blower is being continued.
The dehumidifying operation determination unit determines that the dehumidifying operation is necessary when the temperature of the air upstream of the heat exchanger is higher than the threshold value.
The operation control unit continues the operation of the blower for a certain period of time after stopping the cooling operation for cooling the air with the heat exchanger, and when the dehumidification operation determination unit determines that the dehumidification operation is necessary. , While the operation of the blower is continued, the dehumidifying operation is also used.
An air conditioning system characterized in that during the dehumidification operation, the heat exchanger cools the air on one side of the refrigeration cycle and heats the air on the other side of the refrigeration cycle to perform reheat dehumidification. An indoor unit having two independent refrigeration cycles, a heat exchanger that heats or cools air, a blower that blows air through the heat exchanger, and an operation control unit that controls the heat exchanger and the blower. When,
It is provided with an air supply air passage that allows air sent from the heat exchanger by the blower to pass through a living room different from the installation location of the indoor unit.
The operation control unit
A post-heat exchange air temperature detector that measures the temperature of the air downstream of the heat exchanger,
It is equipped with a dehumidifying operation determination unit that determines whether or not it is necessary to perform a dehumidifying operation that lowers the humidity of the air while the operation of the blower is being continued.
The dehumidifying operation determination unit determines that the dehumidifying operation is necessary when the temperature of the air downstream of the heat exchanger is lower than the threshold value.
The operation control unit continues the operation of the blower for a certain period of time after stopping the cooling operation for cooling the air with the heat exchanger, and when the dehumidification operation determination unit determines that the dehumidification operation is necessary. , While the operation of the blower is continued, the dehumidifying operation is also used.
An air conditioning system characterized in that during the dehumidification operation, the heat exchanger cools the air on one side of the refrigeration cycle and heats the air on the other side of the refrigeration cycle to perform reheat dehumidification. The operation control unit
A heat exchanger operating time measuring unit that measures the time during which the cooling operation was performed,
It is equipped with a blower operation duration storage unit that stores the blower operation duration, which is the time to continue the operation of the blower after the cooling operation is stopped.
The one according to any one of claims 1 to 6, wherein the blower operation duration storage unit stores a plurality of the blower operation durations having a positive correlation with the length of time during which the cooling operation is performed. The described air conditioning system.

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