JP2020190365A - Air conditioning system - Google Patents

Abstract

To provide an air conditioning system that can detect a failure in power supply for an indoor unit and an outdoor unit.SOLUTION: An air conditioning system 100, 1 includes an indoor unit 30 and an outdoor unit 10. The indoor unit 30 or outdoor unit 10 includes a control unit 101. The control unit 101 calculates a difference between an AC voltage of the indoor unit 35 and an AC voltage of the outdoor unit 10 to determine whether the difference is larger than a specified value and outputs an error notification when the difference is larger than the specified value.SELECTED DRAWING: Figure 4

Description

The present invention relates to an air conditioning system technology, and more particularly to an air conditioning system technology including an indoor unit and an outdoor unit.

Air conditioning systems including indoor and outdoor units are known. For example, Japanese Patent Application Laid-Open No. 2019-66106 (Patent Document 1) discloses an air conditioner. According to Patent Document 1, in an air conditioner, an indoor circuit and an outdoor circuit are connected via a communication line and a power supply line. The indoor microcomputer controls communication between the indoor unit and the outdoor unit via the communication line and power supply / stop between the indoor unit and the outdoor unit via the power supply line. When the indoor microcomputer detects an abnormal signal, it detects incorrect wiring and stops the power supply in the power supply line.

JP-A-2019-66106

An object of the present invention is to provide an air conditioning system capable of detecting a malfunction in power supply between an indoor unit and an outdoor unit.

According to certain aspects of the invention, an air conditioning system with an indoor unit and an outdoor unit is provided. The indoor unit or outdoor unit includes a control unit. The control unit calculates the difference between the AC voltage of the indoor unit and the AC voltage of the outdoor unit to determine whether or not the difference is larger than the predetermined value, and notifies an error when the difference is larger than the predetermined value. Is output.

As described above, according to the present invention, there is provided an air conditioning system capable of detecting a malfunction in the power supply between the indoor unit and the outdoor unit.

It is a schematic block diagram of the air conditioner which concerns on 1st Embodiment. In this figure, the four-way switching valve is in the cooling operation state. It is a schematic block diagram of the air conditioner which concerns on 1st Embodiment. In this figure, the four-way switching valve is in the heating operation state. It is a functional block diagram which shows the structure of the air conditioner which concerns on 1st Embodiment. It is a block diagram which shows the electric power supply composition of the air conditioner which concerns on 1st Embodiment. It is a flowchart which shows the voltage difference confirmation processing by the control unit 101 which concerns on 1st Embodiment. It is an image diagram which shows the whole structure of the air-conditioning system 1 which concerns on the 2nd Embodiment. It is a block diagram which shows the structure of the server 200 which concerns on 2nd Embodiment. It is a block diagram which shows the structure of the structure of the communication terminal 300 which concerns on 3rd Embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, the same parts are designated by the same reference numerals. Their names and functions are the same. Therefore, the detailed description of them will not be repeated.
<First Embodiment>
<Overall configuration of air conditioner>

First, the overall configuration of the air conditioner 100 constituting the air conditioning system according to the present embodiment and the basic operation outline will be described. Note that FIG. 1 is a schematic configuration diagram of the air conditioner 100 according to the first embodiment during the cooling operation and the defrosting operation. Further, FIG. 2 is a schematic configuration diagram of the air conditioner 100 according to the first embodiment during the heating operation.

With reference to FIGS. 1 and 2, the air conditioner 100 according to the present embodiment is a separate type air conditioner, and is mainly composed of an outdoor unit 10, an indoor unit 30, and a remote controller 50. There is. The air conditioner 100 is configured by connecting the indoor unit 30 and the outdoor unit 10 via the refrigerant pipes 17 and 18. Then, as will be described later, the indoor unit 30 and the outdoor unit 10 are also connected via wiring for communication, wiring between units for power supply, and the like. Hereinafter, the outdoor unit 10, the indoor unit 30, the remote controller 50, and the refrigerant pipes 17 and 18 will be described in detail.

(1) Outdoor unit The outdoor unit 10 is mainly composed of a housing 11, a compressor 12, a four-way switching valve 13, an outdoor heat exchanger 14, an expansion valve 15, an outdoor fan 16, a refrigerant pipe 17, a refrigerant pipe 18, and two. It is composed of a square valve 19, a three-way valve 20, an outdoor heat exchanger temperature sensor 21, a discharge temperature sensor 22, a suction temperature sensor 23, an outlet temperature sensor 24, an outside air temperature sensor 25, and an outdoor control unit 29. The outdoor unit 10 is installed outdoors.

The housing 11 includes a compressor 12, a four-way switching valve 13, an outdoor heat exchanger 14, an expansion valve 15, an outdoor fan 16, a refrigerant pipe 17, a refrigerant pipe 18, a two-way valve 19, a three-way valve 20, and a temperature sensor 21. ~ 25 and the outdoor control unit 29 and the like are housed.

The compressor 12 has a discharge pipe 12a and a suction pipe 12b. The discharge pipe 12a and the suction pipe 12b are connected to different connection ports of the four-way switching valve 13, respectively. Further, the compressor 12 is communication-connected to the outdoor control unit 29 via a communication line, and operates according to a control signal transmitted from the outdoor control unit 29. During operation, the compressor 12 sucks low-pressure refrigerant gas from the suction pipe 12b, compresses the refrigerant gas to generate high-pressure refrigerant gas, and then discharges the high-pressure refrigerant gas from the discharge pipe 12a. In the present embodiment, the control type of the compressor 12 is not particularly limited, and may be a constant speed type compressor or an inverter type compressor.

The four-way switching valve 13 is connected to the discharge pipe 12a and the suction pipe 12b of the compressor 12, the outdoor heat exchanger 14, and the indoor heat exchanger 32 via a refrigerant pipe. The four-way switching valve 13 is communication-connected to the outdoor control unit 29 via a communication line, and operates according to a control signal transmitted from the outdoor control unit 29. As a result, the four-way switching valve 13 connects the discharge pipe 12a of the compressor 12 to the outdoor heat exchanger 14 and connects the suction pipe 12b of the compressor 12 according to the control signal transmitted from the outdoor control unit 29 during operation. The cooling operation state (see FIG. 1) connected to the indoor heat exchanger 32, the discharge pipe 12a of the compressor 12 is connected to the indoor heat exchanger 32, and the suction pipe 12b of the compressor 12 is connected to the outdoor heat exchanger 14. Switch between the heating operation state (see FIG. 2).

The outdoor heat exchanger 14 is a heat transfer tube (not shown) in which a large number of heat transfer tubes (not shown) are folded back at both left and right ends, and a large number of heat radiation fins (not shown) are attached (fin & tube type), and is used during cooling operation. It functions as a condenser during (see FIG. 1) and as an evaporator during heating operation (see FIG. 2). A parallel flow type heat exchanger or a serpen type heat exchanger may be used as the heat exchanger.

The expansion valve 15 is an electronic expansion valve whose opening degree can be controlled via a stepping motor. One is connected to the two-way valve 19 via the refrigerant pipe 17, and the other is connected to the outdoor heat exchanger 14. Has been done. Further, the stepping motor of the expansion valve 15 is communicatively connected to the outdoor control unit 29 via a communication line, and operates according to a control signal transmitted from the outdoor control unit 29. The expansion valve 15 decompresses the high-temperature and high-pressure liquid refrigerant flowing out of the condenser (the outdoor heat exchanger 14 during cooling and the indoor heat exchanger 32 during heating) to a state in which it is easy to evaporate during operation. At the same time, it plays a role of adjusting the amount of refrigerant supplied to the evaporator (the indoor heat exchanger 32 during cooling and the outdoor heat exchanger 14 during heating).

The outdoor fan 16 is mainly composed of a propeller fan and a motor, as will be described later. The propeller fan is rotationally driven by a motor to supply outdoor outside air to the outdoor heat exchanger 14. The motor is communication-connected to the outdoor control unit 29 via a communication line, and operates according to a control signal transmitted from the outdoor control unit 29.

The two-way valve 19 is arranged in the refrigerant pipe 17. The two-way valve 19 is closed when the refrigerant pipe 17 is removed from the outdoor unit 10 to prevent the refrigerant from leaking to the outside from the outdoor unit 10.

The three-way valve 20 is arranged in the refrigerant pipe 18. The three-way valve 20 is closed when the refrigerant pipe 18 is removed from the outdoor unit 10 to prevent the refrigerant from leaking to the outside from the outdoor unit 10. Further, when it is necessary to recover the refrigerant from the outdoor unit 10 or the entire refrigeration cycle including the indoor unit 30, the refrigerant is recovered through the three-way valve 20.

The outdoor heat exchanger temperature sensor 21 is arranged in the outdoor heat exchanger 14, the discharge temperature sensor 22 is arranged in the discharge pipe 12a of the compressor 12, and the suction temperature sensor 23 is arranged in the suction pipe 12b of the compressor 12. The outlet temperature sensor 24 is arranged in the refrigerant pipe 17 near the outlet of the outdoor heat exchanger 14, and the outside air temperature sensor 25 is for measuring the outside air temperature and is arranged at a predetermined place inside the housing 11. Has been done. All of these temperature sensors 21 to 25 are communication-connected to the outdoor control unit 29 via a communication line, and transmit information on the measured temperature to the outdoor control unit 29.

The outdoor control unit 29 is communication-connected to the compressor 12, the four-way switching valve 13, the expansion valve 15, the outdoor fan 16, and the temperature sensors 21 to 25 via a communication line. For example, the processor of the outdoor control unit 29 calculates and processes the output information of the temperature sensors 21 to 25, various control parameters stored in the memory, and the like at any time to derive appropriate control parameters, and obtains the control parameters. The information is transmitted to the compressor 12, the four-way switching valve 13, the expansion valve 15, and the outdoor fan 16. Further, the processor transmits or receives control parameters and the like to the indoor control unit 35 as needed.

(2) Indoor unit The indoor unit 30 is mainly composed of a housing 31, an indoor heat exchanger 32, an indoor fan 33, a vertical louver 36, a horizontal louver described later, an indoor heat exchanger temperature sensor 34, an indoor temperature sensor 38, and an indoor unit. It is composed of a control unit 35, an infrared light receiving unit 39, and the like. The indoor unit 30 is generally installed on the wall surface of the room.

The housing 31 houses an indoor heat exchanger 32, an indoor fan 33, an indoor heat exchanger temperature sensor 34, an indoor temperature sensor 38, an indoor control unit 35, and the like. The vertical louver 36 constitutes a part of the housing 31.

The indoor heat exchanger 32 is a combination of three heat exchangers 32A, 32B, and 32C like a roof covering the indoor fan 33. Each heat exchanger 32A, 32B, 32C has a large number of heat radiation fins (not shown) attached to heat transfer tubes (not shown) that are folded back at both left and right ends, and is used during cooling operation. It functions as an evaporator during (see FIG. 1) and as a condenser during heating operation (see FIG. 2).

The indoor fan 33 is mainly composed of a cross flow fan and a motor, as will be described later. The cross-flow fan is rotationally driven by a motor, sucks indoor air into the housing 31 from a suction port and supplies it to the indoor heat exchanger 32, and sends out the heat exchanged air by the indoor heat exchanger 32 into the room. To do. The motor is communicatively connected to the indoor control unit 35 via a communication line, and operates according to a control signal transmitted from the indoor control unit 35.

In the present embodiment, the filter 49 is attached to the suction port to reduce the possibility of dust and dirt entering the housing 31 and the possibility of contact with the indoor heat exchanger 32.

The vertical louver 36 is composed of a vertical wind direction changing plate and a stepping motor. The vertical wind direction changing plate is rotated by a stepping motor, and the cross-flow fan adjusts the vertical delivery direction of the air sent into the room. The stepping motor is communication-connected to the indoor control unit 35 via a communication line, and operates according to a control signal transmitted from the indoor control unit 35.

The indoor heat exchanger temperature sensor 34 is arranged in the indoor heat exchanger 32, and the indoor temperature sensor 38 measures the indoor temperature and is arranged near the suction port in the housing 31. The temperature sensors 34 and 38 are communication-connected to the indoor control unit 35 via a communication line, and transmit information on the measured temperature to the indoor control unit 35.

The indoor control unit 35 is communication-connected to the indoor fan 33, the vertical louver 36, and the temperature sensors 34, 38 via a communication line. The processor of the indoor control unit 35 calculates and processes the control signal from the remote controller 50, the output information of the temperature sensors 34 and 38, and the like at any time to derive appropriate control parameters, and the indoor fan 33 and the like derive the appropriate control parameters. Or, it is transmitted to the vertical louver 36 or the like. Further, the processor transmits the control parameters and the like to the outdoor control unit 29 and receives the control parameters and the like from the outdoor control unit 29 as necessary.

The infrared light receiving unit 39 receives blinking infrared rays generated from the remote controller 50. The infrared light receiving unit 39 converts the blinking infrared rays into a signal and passes the generated signal to the indoor control unit 35.

The compressor 12 of the outdoor unit 10, the four-way switching valve 13, the outdoor heat exchanger 14 and the expansion valve 15, and the indoor heat exchanger 32 of the indoor unit 30 are sequentially connected by the refrigerant pipes 17 and 18, and the refrigerant circuit is connected. Consists of. In the present embodiment, each unit on the refrigerant circuit, the outdoor fan 16, the indoor fan 33, the vertical louver 36, and the like are collectively referred to as an air conditioning mechanism, and are indicated by reference numerals 2 in FIGS. 1 and 2.

(3) Remote controller The remote controller 50 is for transmitting various commands of the user to the indoor control unit 35 of the indoor unit 30 via the infrared light receiving unit 39 by using blinking infrared rays. It consists of an infrared light emitting unit, a display panel, an operation stop button, a mode switching button, a temperature increase button, a temperature decrease button, an air volume increase button, an air volume decrease button, a wind direction adjustment button, an automatic operation button, and the like.

(4) Refrigerator Pipe The refrigerant pipe 17 is thinner than the refrigerant pipe 18, and liquid refrigerant flows during the cooling operation and the defrosting operation. The refrigerant pipe 18 is thicker than the refrigerant pipe 17, and gas refrigerant flows during the cooling operation. As the refrigerant, for example, HFC-based R410A, R32, or the like is used.
<Basic operation of air conditioner>

Hereinafter, the cooling operation mechanism, the heating operation mechanism, and the defrosting operation mechanism of the air conditioner 100 according to the present embodiment will be described in detail.

(1) Cooling operation mechanism In the cooling operation, the four-way switching valve 13 is in the state shown in FIG. 1, that is, the discharge pipe 12a of the compressor 12 is connected to the outdoor heat exchanger 14, and the suction pipe of the compressor 12 is connected. 12b is connected to the indoor heat exchanger 32. At this time, the two-way valve 19 and the three-way valve 20 are in the open state. When the compressor 12 is started in this state, the gas refrigerant is sucked into the compressor 12, compressed, and then sent to the outdoor heat exchanger 14 via the four-way switching valve 13 to exchange outdoor heat. It is cooled in the vessel 14 and becomes a liquid refrigerant. After that, this liquid refrigerant is sent to the expansion valve 15 and is depressurized to be in a gas-liquid two-phase state. The gas-liquid two-phase state refrigerant is supplied to the indoor heat exchanger 32 via the two-way valve 19, cools the indoor air, and is evaporated to become a gas refrigerant. Finally, the gas refrigerant is sucked into the compressor 12 again via the three-way valve 20 and the four-way switching valve 13. In this way, the air conditioner 100 according to the present embodiment has a cooling operation mechanism, that is, a cooling operation cycle.

(2) Heating operation mechanism In the heating operation, the four-way switching valve 13 is in the state shown in FIG. 2, that is, the discharge pipe 12a of the compressor 12 is connected to the indoor heat exchanger 32, and the suction pipe of the compressor 12 is connected. 12b is connected to the outdoor heat exchanger 14. At this time, the two-way valve 19 and the three-way valve 20 are in the open state. When the compressor 12 is started in this state, the gas refrigerant is sucked into the compressor 12, compressed, and then supplied to the indoor heat exchanger 32 via the four-way switching valve 13 and the three-way valve 20. As the room air is heated, it is condensed into a liquid refrigerant. After that, this liquid refrigerant is sent to the expansion valve 15 via the two-way valve 19, and the pressure is reduced to a gas-liquid two-phase state. The gas-liquid two-phase refrigerant is sent to the outdoor heat exchanger 14 and evaporated in the outdoor heat exchanger 14 to become a gas refrigerant. Finally, the gas refrigerant is sucked into the compressor 12 again via the four-way switching valve 13. In this way, the air conditioner 100 according to the present embodiment has a heating operation mechanism, that is, a heating operation cycle.

(3) Defrosting operation mechanism During heating operation, the outdoor heat exchanger 14 may be frosted and the heat exchange capacity may be reduced. Therefore, the outdoor control unit 29 determines whether or not the outdoor heat exchanger 14 is frosted based on the temperature from the temperature sensor 21 for the outdoor heat exchanger. When the outdoor control unit 29 determines that frost has formed, it defrosts by switching the four-way switching valve 13 and performing the above-mentioned cooling operation (reverse defrosting). The outdoor control unit 29 determines whether or not the frost of the outdoor heat exchanger 14 has been appropriately removed based on the temperature from the temperature sensor 21 for the outdoor heat exchanger.
<Functional configuration of air conditioner 100>

Next, the functional configuration of the air conditioner 100 according to the present embodiment will be described with reference to FIG. Note that FIG. 3 is a functional block diagram showing the functional configuration of the air conditioner 100 according to the first embodiment.

First, as described above, the air conditioner 100 includes an outdoor control unit 29 and an indoor control unit 35. Hereinafter, for the sake of explanation, the outdoor control unit 29 and the indoor control unit 35 are collectively referred to as a control unit 101. The outdoor control unit 29 and the indoor control unit 35 can communicate with each other by wiring. Then, the process executed by the control unit 101 may be basically executed by the indoor control unit 35 or may be executed by the outdoor control unit 29.

Further, the air conditioner 100 may not have the indoor control unit 35, and almost all the functions of the control unit 101 may be mounted on the outdoor control unit 29. Alternatively, the air conditioner 100 may not have the outdoor control unit 29, and almost all the functions of the control unit 101 may be mounted on the indoor control unit 35.

The control unit 101 includes, for example, a processor 110 for performing various arithmetic processes, a memory 120 for storing various programs and data, a clock 130, and the like. The processor 110 is composed of, for example, a CPU (Central Processing Unit). The processor 110 executes various processes for each part of the air conditioner 100 according to the program stored in the memory 120.

Further, in the present embodiment, the outdoor fan 16 is mainly composed of the propeller fan 161 and the fan motor 162 as described above. The propeller fan 161 is rotationally driven by a fan motor 162 to supply outdoor outside air to the outdoor heat exchanger 14.

As described above, the indoor fan 33 is mainly composed of a cross flow fan 331 and a fan motor 332. The cross-flow fan 331 is rotationally driven by a fan motor 332, sucks indoor air into the housing 31 and supplies it to the indoor heat exchanger 32, and sends out the heat exchanged air by the indoor heat exchanger 32 into the room. ..

Then, in the present embodiment, the processor 110 controls the rotation speed of the motor 122 of the compressor 12, adjusts the opening degree of the expansion valve 15, and the outdoor unit according to the control program stored in the memory 120. The rotation speed of the fan motor 162 of the propeller fan 161 of 10 is controlled, and the rotation speed of the fan motor 332 of the cross flow fan 331 of the indoor unit 30 is controlled. Specifically, when the difference between the room temperature and the set temperature is large, the processor 110 sometimes increases the rotation speed of the compressor 12, increases the rotation speed of the propeller fan 161, or rotates the cross flow fan 331. Increase the number. When the difference between the room temperature and the set temperature is small, the rotation speed of the compressor 12 is lowered, the rotation speed of the propeller fan 161 is lowered, or the rotation speed of the cross flow fan 331 is lowered. Further, during the following low power operation, the rotation speed of the compressor 12 is lowered or the rotation speed of the propeller fan 161 is lowered.

The air conditioner 100 according to the present embodiment is equipped with an indoor unit voltmeter 41 and an indoor unit voltmeter 41. The indoor unit voltmeter 41 measures the voltage of the AC power supply of the indoor unit 30 and passes the measurement result to the indoor control unit 35. The outdoor unit voltmeter 42 measures the voltage of the AC power supply provided from the indoor unit 30 to the outdoor unit 10 via the wiring between the units, and passes the measurement result to the indoor control unit 35 via the outdoor control unit 29.

In particular, in the present embodiment, as shown in FIG. 4, the control unit 101 uses the voltage of the AC power supply provided from the outlet 2 to the indoor unit 30 and the wiring 60 between the indoor units 30 to the unit. The voltage loss is detected by calculating the difference between the voltage of the AC power supply provided to the outdoor unit 10 and the voltage of the AC power supply. Then, when the voltage loss is larger than a predetermined degree, the control unit 101 causes the outdoor unit 10 to execute the low power operation, or outputs a warning that the voltage loss is large.

The method of measuring the voltage of the AC power supply of the indoor unit 30, the method of measuring the voltage of the AC power supply of the outdoor unit 10, and the method of transmitting the measurement result are not particularly limited. For example, the power supply voltage can be measured by configuring the control board of the indoor control unit 35 and the AC power supply or AC / DC converter circuit of the indoor unit 30 in a non-insulated manner, or wirelessly from the indoor unit voltmeter 41 to the indoor control unit 35. Can provide a measured voltage.

Returning to FIG. 3, the air conditioner 100 according to the present embodiment is equipped with a communication interface 40 for exchanging data with other devices such as a server via a router or the Internet. The air conditioner 100 includes a display 43 for displaying various images and texts based on signals from the control unit 101, and a speaker 47 for outputting various sounds based on signals from the control unit 101. To do.
<Voltage difference confirmation processing by control unit 101>

Next, the voltage difference detection process by the control unit 101 according to the present embodiment will be described. In the present embodiment, when the air conditioner 100 is installed in the home and the air conditioner operation is started for the first time, the processor 110 of the control unit 101 has a voltage as shown in FIG. 5 based on the program of the memory 120. Execute the difference confirmation process.

In the present embodiment, the processor 110 acquires the voltage of the AC power supply provided to the indoor unit 30 from the outlet 2 from the indoor unit voltmeter 41 (step S102). The processor 110 acquires the voltage of the AC power supply provided from the outdoor unit voltmeter 42 to the outdoor unit 10 from the indoor unit 30 via the inter-unit wiring 60 (step S104). The processor 110 subtracts the voltage of the outdoor unit 10 from the voltage of the indoor unit 30 to calculate the difference between the two (step S106).

The processor 110 determines whether or not the difference between the two is larger than a predetermined value, for example, 5 volts or 10 volts (step S108). When the difference between the two is equal to or greater than a predetermined value (YES in step S108), the processor 110 lowers the rotation speed of the compressor 12 of the outdoor unit 10 or the propeller of the outdoor unit 10 as low power operation. The rotation speed of the fan 161 is lowered (step S110). Further, the processor 110 outputs voice from the speaker 47 or the remote controller 50, or displays on the display 43 or the remote controller that the voltage of the outdoor unit 10 has dropped or that the low power operation is being executed. (Step S112).

When the difference between the two is equal to or less than a predetermined value (YES in step S108), the processor 110 ends the current voltage difference confirmation process.
<Second Embodiment>

In the above embodiment, when the air conditioner 100 is installed in the home and the air conditioner operation is started for the first time, the processor 110 executes the voltage difference confirmation process of FIG. It is not limited to any form.

For example, when a maintenance mode instruction is received from a user or a server, the processor 110 may execute the voltage difference confirmation process of FIG.

Alternatively, the processor 110 may execute the voltage difference confirmation process of FIG. 5 each time the air-conditioned operation is started.

Alternatively, the processor 110 may execute the voltage difference confirmation process of FIG. 5 periodically, for example, weekly.

Alternatively, the integrated operation time may be accumulated in the memory 120, and the processor 110 may execute the voltage difference confirmation process of FIG. 5 every time the air-conditioned operation is performed for 100 hours.
<Third embodiment>

In the above embodiment, the control unit 101 of the air conditioner 100 executes various processes such as the voltage difference confirmation process of FIG. 5, but another device executes the above processes. May be good. For example, the server 200 on the cloud shown in FIG. 6 may acquire the voltage of the indoor unit 30 and the voltage of the outdoor unit 10 from the air conditioner 100 and execute the voltage difference confirmation process. That is, the air conditioner system 1 is configured by the air conditioner 100, the server 200, the router 400, and the like.

More specifically, as shown in FIG. 7, the server 200 includes a processor 210 such as a CPU, a memory 220, an operation unit 240, and a communication interface 260 as main components.

The processor 210 controls each part of the server 200 by executing a program stored in the memory 220.

The memory 220 is realized by various RAMs, various ROMs, etc., may be included in the server 200, may be detachable from various interfaces of the server 200, or may be detachable from the server 200. It may be a recording medium of another device accessible from. The memory 220 stores a program executed by the processor 210, data generated by executing the program by the processor 210, input data, and other databases used for processing and services according to the present embodiment. ..

The operation unit 240 receives an instruction from a service administrator or the like and inputs the instruction to the processor 210.

The communication interface 260 transmits data from the processor 210 to other devices such as the air conditioner 100, the communication terminal 300, and other servers via the Internet, carrier network, router 400, and the like. On the contrary, the communication interface 260 receives data from another device via the Internet, a carrier network, a router, or the like, and passes the data to the processor 210.

Next, the current confirmation process of the air conditioner 100 by the processor 210 according to the present embodiment will be described. With reference to FIG. 5, the processor 210 executes the following processing for each target air conditioner 100.

The processor 210 acquires the voltage of the AC power supply provided from the outlet 2 to the indoor unit 30 from the air conditioner 100 via the communication interface 260 (step S102). The processor 210 acquires the voltage of the AC power supply provided from the air conditioner 100 to the outdoor unit 10 via the inter-unit wiring 60 from the indoor unit 30 via the communication interface 260 (step S104). The processor 210 subtracts the voltage of the outdoor unit 10 from the voltage of the indoor unit 30 to calculate the difference between the two (step S106).

The processor 210 determines whether or not the difference between the two is larger than a predetermined value (step S108). When the difference between the two is equal to or greater than a predetermined value (YES in step S108), the processor 210 instructs the air conditioner 100 to operate with low power via the communication interface 260 (step S110). Further, the processor 210 links to the user of the air conditioner 100 or the air conditioner 100 that the voltage of the outdoor unit 10 is lowered and that the low power operation is executed via the communication interface 260. The communication terminal 300 is to output or display the voice (step S112).

When the difference between the two is equal to or less than a predetermined value (YES in step S108), the processor 210 shifts to the next processing for the air conditioner 100.

Alternatively, the application program of the communication terminal 300 such as a smartphone associated with the air conditioner 100 may execute the voltage difference confirmation process of FIG. More specifically, with reference to FIG. 8, the communication terminal 300 constituting the air conditioning system 1 communicates with a processor 310 such as a CPU, a memory 320, a display 330, and an operation unit 340 as main components. It includes an interface 360, a speaker 370, a microphone 380 and the like.

The processor 310 controls each part of the communication terminal 300 by executing a program stored in the memory 320.

The memory 320 is realized by various RAMs, various ROMs, and the like. The memory 320 is input via a program executed by the processor 310 such as various application programs, data generated by executing the program by the processor 310, data received from the server 200 or the air conditioner 100, and the operation unit 340. The data, information for identifying the user of the communication terminal 300, and the like are stored.

The display 330 displays an image or text based on the data from the processor 310. For example, the processor 310 causes the display 330 to display a message based on the text data from the server 200 via the communication interface 360. The operation unit 340 is composed of a pointing device, a switch, and the like, and inputs various commands from the user to the processor 310. The communication terminal 300 may have a touch panel 350 including a display 330 and an operation unit 340.

The communication interface 360 transmits / receives data to / from other devices such as the server 200 and the air conditioner 100 via the Internet, a carrier network, a router, or the like. For example, the processor 310 receives various data from the server 200 via the communication interface 360 according to the application program of the memory 320, and receives various commands from the user via the touch panel 350 to the server 200 and the air conditioner 100. Send to other devices such as.

The speaker 370 outputs audio based on the data from the processor 310. For example, the processor 310 causes the speaker 370 to output voice data from the server 200 via the communication interface 360. The microphone 380 inputs the acquired audio signal to the processor 310. For example, the processor 310 transmits the voice data acquired from the microphone 380 to the server 200 via the communication interface 360.

Then, in the present embodiment, the processor 310 receives voice data from the server 200 via the communication interface 360 and causes the speaker 370 to output a voice message, or text data from the server 200 via the communication interface 360. Is received and a message is displayed on the display 330.

Next, the current confirmation process of the air conditioner 100 by the processor 310 of the communication terminal 300 according to the present embodiment will be described. With reference to FIG. 5, the processor 310 airs through the communication interface 360, directly from the air conditioner 100 using bluetooth® communication, or via WiFi® communication or the Internet. The voltage of the AC power supply provided to the indoor unit 30 from the outlet 2 is acquired from the air conditioner 100 (step S102). The processor 310 acquires the voltage of the AC power supply provided from the air conditioner 100 to the outdoor unit 10 via the inter-unit wiring 60 from the indoor unit 30 via the communication interface 360 (step S104). The processor 310 subtracts the voltage of the outdoor unit 10 from the voltage of the indoor unit 30 to calculate the difference between the two (step S106).

The processor 310 determines whether or not the difference between the two is larger than a predetermined value (step S108). When the difference between the two is equal to or greater than a predetermined value (YES in step S108), the processor 310 instructs the air conditioner 100 to operate with low power via the communication interface 360 (step S110). Further, the processor 310 outputs a voice from the speaker 370 or displays on the display 330 that the voltage of the outdoor unit 10 of the air conditioner 100 is low and that the low power operation is being executed. Step S112). Alternatively, the processor 310 causes the air conditioner 100 to output or display by voice that the voltage of the outdoor unit 10 is low or that the low power operation is being executed via the communication interface 360.

When the difference between the two is equal to or less than a predetermined value (YES in step S108), the processor 310 ends the current voltage difference confirmation process.
<Summary>

In the above embodiment, an air conditioning system including an indoor unit and an outdoor unit is provided. The indoor unit or outdoor unit includes a control unit. The control unit calculates the difference between the AC voltage of the indoor unit and the AC voltage of the outdoor unit to determine whether or not the difference is larger than the predetermined value, and notifies an error when the difference is larger than the predetermined value. Is output.

In the above embodiment, an air conditioning system including an indoor unit and an outdoor unit is provided. The indoor unit or outdoor unit includes a control unit. The control unit calculates the difference between the AC voltage of the indoor unit and the AC voltage of the outdoor unit to determine whether or not the difference is larger than the predetermined value, and if the difference is larger than the predetermined value, the power is low. Carry out the operation.

In the above embodiment, an air conditioning system including an indoor unit, an outdoor unit, and a server capable of communicating with the indoor unit or the outdoor unit is provided. The server includes the control unit. The control unit calculates the difference between the AC voltage of the indoor unit and the AC voltage of the outdoor unit to determine whether or not the difference is larger than the predetermined value, and if the difference is larger than the predetermined value, the indoor unit. Or, let the communication terminal output an error notification.

In the above embodiment, an air conditioning system including an indoor unit, an outdoor unit, and a server capable of communicating with the indoor unit or the outdoor unit is provided. The server includes the control unit. The control unit calculates the difference between the AC voltage of the indoor unit and the AC voltage of the outdoor unit to determine whether or not the difference is larger than the predetermined value, and if the difference is larger than the predetermined value, the outdoor unit. To carry out low power operation.

In the above embodiment, an air conditioning system including an indoor unit, an outdoor unit, and a communication terminal capable of communicating with the indoor unit or the outdoor unit is provided. The communication terminal includes a control unit. The control unit calculates the difference between the AC voltage of the indoor unit and the AC voltage of the outdoor unit to determine whether or not the difference is larger than the predetermined value, and notifies an error when the difference is larger than the predetermined value. Is output.

Preferably, the control unit executes the determination when the power of the indoor unit or the outdoor unit is turned on.

Preferably, the control unit executes the determination on a regular basis.

Preferably, the control unit executes the determination when the integrated time of the air-conditioned operation reaches a predetermined time.

It should be considered that the embodiments disclosed this time are exemplary in all respects and not restrictive. The scope of the present invention is shown by the scope of claims, not the above description, and is intended to include all modifications within the meaning and scope equivalent to the scope of claims.

1: Air conditioning system 2: Outlet 10: Outdoor unit 11: Housing 12: Compressor 12a: Discharge pipe 12b: Suction pipe 13: Four-way switching valve 14: Outdoor heat exchanger 15: Expansion valve 16: Outdoor fan 161: Propeller fan 162: Fan motor 17: Refrigerant pipe 18: Refrigerant pipe 19: Two-way valve 20: Three-way valve 21: Outdoor heat exchanger temperature sensor 22: Discharge temperature sensor 23: Suction temperature sensor 24: Outlet temperature sensor 25: Outside air temperature Sensor 29: Outdoor control unit 30: Indoor unit 31: Housing 32: Indoor heat exchanger 32A: Heat exchanger 32B: Heat exchanger 32C: Heat exchanger 33: Indoor fan 331: Cross flow fan 332: Fan motor 34: Indoor heat exchanger temperature sensor 35: Indoor control unit 36: Vertical louver 38: Indoor temperature sensor 39: Infrared light receiving unit 40: Communication interface 41: Indoor unit voltmeter 42: Outdoor unit voltmeter 43: Display 47: Speaker 49: Filter 50: Remote controller 60: Inter-unit wiring 100: Air exchanger 101: Control unit 110: Processor 120: Memory 122: Motor 130: Clock 200: Server 210: Processor 220: Memory 240: Operation unit 260: Communication interface 300: Communication Terminal 310: CPU
320: Memory 330: Display 340: Operation unit 350: Touch panel 360: Communication interface 370: Speaker 380: Microphone 400: Router

Claims (8)

An air conditioning system that includes an indoor unit and an outdoor unit.
The indoor unit or the outdoor unit includes a control unit.
By calculating the difference between the AC voltage of the indoor unit and the AC voltage of the outdoor unit, the control unit determines whether or not the difference is larger than a predetermined value, and when the difference is larger than the predetermined value. An air conditioning system that outputs error notifications to. An air conditioning system that includes an indoor unit and an outdoor unit.
The indoor unit or the outdoor unit includes a control unit.
The control unit calculates whether or not the difference is larger than a predetermined value by calculating the difference between the AC voltage of the indoor unit and the AC voltage of the outdoor unit, and when the difference is larger than the predetermined value. Air conditioning system that implements low power operation. An air conditioning system including an indoor unit, an outdoor unit, and a server capable of communicating with the indoor unit or the outdoor unit.
The server includes a control unit
By calculating the difference between the AC voltage of the indoor unit and the AC voltage of the outdoor unit, the control unit determines whether or not the difference is larger than a predetermined value, and when the difference is larger than the predetermined value. An air conditioning system that causes the indoor unit or communication terminal to output an error notification. An air conditioning system including an indoor unit, an outdoor unit, and a server capable of communicating with the indoor unit or the outdoor unit.
The server includes a control unit
By calculating the difference between the AC voltage of the indoor unit and the AC voltage of the outdoor unit, the control unit determines whether or not the difference is larger than a predetermined value, and when the difference is larger than the predetermined value. An air conditioning system that allows the outdoor unit to perform low power operation. An air conditioning system including an indoor unit, an outdoor unit, and a communication terminal capable of communicating with the indoor unit or the outdoor unit.
The communication terminal includes a control unit
The control unit calculates whether or not the difference is larger than a predetermined value by calculating the difference between the AC voltage of the indoor unit and the AC voltage of the outdoor unit, and when the difference is larger than the predetermined value. An air conditioning system that outputs error notifications to. The air conditioning system according to any one of claims 1 to 5, wherein the control unit executes the determination when the power of the indoor unit or the outdoor unit is turned on. The air conditioning system according to any one of claims 1 to 5, wherein the control unit periodically executes the determination. The air conditioning system according to any one of claims 1 to 5, wherein the control unit executes the determination when the integrated time of the air conditioning operation reaches a predetermined time.