WO2023139762A1 - Air conditioner and ventilation device - Google Patents

Air conditioner and ventilation device Download PDF

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Publication number
WO2023139762A1
WO2023139762A1 PCT/JP2022/002250 JP2022002250W WO2023139762A1 WO 2023139762 A1 WO2023139762 A1 WO 2023139762A1 JP 2022002250 W JP2022002250 W JP 2022002250W WO 2023139762 A1 WO2023139762 A1 WO 2023139762A1
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WO
WIPO (PCT)
Prior art keywords
cable
indoor unit
communication line
control circuit
outdoor
Prior art date
Application number
PCT/JP2022/002250
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French (fr)
Japanese (ja)
Inventor
光 梅澤
茂 高畑
Original Assignee
日立ジョンソンコントロールズ空調株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 日立ジョンソンコントロールズ空調株式会社 filed Critical 日立ジョンソンコントロールズ空調株式会社
Priority to PCT/JP2022/002250 priority Critical patent/WO2023139762A1/en
Priority to JP2022540912A priority patent/JP7135241B1/en
Priority to PCT/JP2022/005035 priority patent/WO2023139798A1/en
Priority to PCT/JP2022/032176 priority patent/WO2023139828A1/en
Priority to TW112101042A priority patent/TW202331155A/en
Publication of WO2023139762A1 publication Critical patent/WO2023139762A1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/20—Casings or covers

Definitions

  • the present invention relates to air conditioners and ventilators.
  • Air conditioners with ventilation functions are known. As such air conditioners, there are known those in which the indoor unit has a built-in ventilation function, and those in which a ventilation unit is provided separately from the indoor unit.
  • Patent Literature 1 discloses a ventilation device arranged between an indoor unit and a wall surface. In this way, since the ventilation device is arranged between the indoor unit and the wall surface, the installation area of the wall does not increase.
  • the ventilation system is installed separately from the indoor unit, it is necessary to install a power cord and a power plug on the ventilation system in order to supply power to the ventilation system, and two outlets are required.
  • a power cord and a power plug on the ventilation system in order to supply power to the ventilation system, and two outlets are required.
  • only one outlet may be provided on the wall on which the air conditioner is installed.
  • the present invention has been made in view of such problems, and an object of the present invention is to enable power supply to a ventilation device even when the number of outlets is limited.
  • the present invention is an air conditioner comprising an indoor unit powered by a commercial power supply and a ventilation device, the ventilation device having a first connection terminal to which a first cable is connected and a second connection terminal to which a second cable is connected, the ventilation device is powered by the indoor unit via the first cable, and the outdoor unit is powered by the indoor unit via the first cable and the second cable.
  • Another aspect of the present invention is an air conditioner comprising an indoor unit powered by a commercial power supply and an outdoor unit, and it is possible to select a first power supply method in which power is supplied from the indoor unit to the ventilation device through the first cable and power is supplied from the indoor unit to the outdoor unit through the first cable and the second cable, and a second power supply method in which power is supplied from the indoor unit to the outdoor unit through the third cable.
  • Another aspect of the present invention is an air conditioner comprising an indoor unit powered by a commercial power supply and a ventilation device, the indoor unit and the ventilation device being connected by a cable including a power line, and connected via a communication line provided separately from the cable.
  • Another aspect of the present invention is a ventilation device comprising a first connection terminal to which a first cable is connected and a second connection terminal to which a second cable is connected, the ventilation device is powered via the first cable from an indoor unit powered by the commercial power supply, and the outdoor unit is powered by the indoor unit via the first cable and the second cable.
  • Another aspect of the present invention is a ventilation device that is placed on the back or side of an indoor unit that is powered by a commercial power source, and the ventilation device and the indoor unit are connected by a cable including a power line, and by a communication line that is provided separately from the cable.
  • FIG. 1 is an external view of an air conditioner according to a first embodiment; FIG. It is a figure which shows a refrigerant circuit.
  • 1 is a configuration diagram of an air conditioner;
  • FIG. FIG. 2 is a configuration diagram of an air conditioner according to a second embodiment;
  • FIG. It is a figure which shows the ventilation apparatus which concerns on a modification.
  • FIG. 1 is an external view of an air conditioner according to the first embodiment.
  • the air conditioner 1 of this embodiment includes an indoor unit 10 and an outdoor unit 20 that have an air conditioning function, and a ventilator 30 that has a ventilation function.
  • the upper left of FIG. 1 shows the appearance of the indoor unit 10 and the ventilation device 30, and the upper right of FIG. 1 shows the state of the indoor unit 10 and the ventilation device 30 viewed from the side.
  • the ventilation device 30 is provided between the indoor unit 10 and the wall A.
  • An intake hose 301 is connected to the ventilator 30 to take in outside air.
  • the intake hose 301 is arranged to extend to the outside through a hole provided in the wall A together with the refrigerant pipe 101 and the like provided in the indoor unit 10 .
  • the ventilator 30 mainly includes a filter, a blower fan, and an air outlet, and outside air taken in through the intake hose 301 passes through the filter and is sent into the room from the air outlet.
  • the air conditioner 1 performs air conditioning by circulating a refrigerant in a refrigeration cycle (heat pump cycle).
  • the air conditioner 1 includes an indoor unit 10 installed indoors (a space to be air-conditioned), an outdoor unit 20 installed outdoors (outdoors), and a remote controller 19 operated by a user.
  • the indoor unit 10 includes a remote control communication section 11.
  • the remote controller communication unit 11 transmits and receives predetermined signals to and from the remote controller 19 by infrared communication or the like.
  • the remote control communication unit 11 receives signals from the remote controller 19 such as start/stop commands for air conditioning operation and ventilation operation, change in set temperature, change in operation mode, and timer setting. Further, the remote control communication unit 11 transmits the detected room temperature and the like to the remote control 19 .
  • the indoor unit 10 and the outdoor unit 20 are connected via a refrigerant pipe, and are also connected via a communication line and a power line.
  • a ventilator remote controller for operating the ventilator 30 may be provided separately from the remote controller 19 .
  • the remote controller communication unit 11 of the indoor unit 10 receives the signal including the ventilation operation signal from the ventilator remote controller.
  • FIG. 2 is a diagram showing refrigerant circuits Q of the indoor unit 10 and the outdoor unit 20 according to the embodiment.
  • the solid line arrows shown in FIG. 2 indicate the flow of the refrigerant during the heating operation.
  • the dashed arrows shown in FIG. 2 indicate the flow of the refrigerant during the cooling operation.
  • the indoor unit 10 includes an indoor heat exchanger 12 and an indoor fan 14 in addition to the remote control communication unit 11 .
  • the indoor heat exchanger 12 heat is exchanged between the refrigerant flowing through the heat transfer tubes (not shown) and the indoor air mixed from the indoor fan 14 .
  • the indoor heat exchanger 12 operates as a condenser or an evaporator by switching a four-way valve 25, which will be described later.
  • the indoor fan 14 is installed near the indoor heat exchanger 12 .
  • the indoor fan 14 sends indoor air into the indoor heat exchanger 12 by driving the indoor fan motor 14a.
  • the outdoor unit 20 includes a compressor 21, an outdoor heat exchanger 22, an outdoor fan 23, an outdoor expansion valve 24 (expansion valve), a four-way valve 25, and a controller 28.
  • the compressor 21 compresses a low-temperature, low-pressure gas refrigerant and discharges it as a high-temperature, high-pressure gas refrigerant by driving a compressor motor 21a.
  • heat exchange takes place between the refrigerant flowing through the heat transfer tubes (not shown) and the outside air sent from the outdoor fan 23 .
  • the outdoor heat exchanger 22 operates as a condenser or an evaporator by switching the four-way valve 25 .
  • the outdoor fan 23 is installed near the outdoor heat exchanger 22.
  • the outdoor fan 23 sends outside air to the outdoor heat exchanger 22 by driving the outdoor fan motor 23a.
  • the outdoor expansion valve 24 has a function of decompressing the refrigerant condensed in the "condenser" (one of the outdoor heat exchanger 22 and the indoor heat exchanger 12).
  • the refrigerant decompressed by the outdoor expansion valve 24 is guided to an "evaporator" (the other of the outdoor heat exchanger 22 and the indoor heat exchanger 12).
  • the four-way valve 25 is a valve that switches the refrigerant flow path according to the operation mode of the air conditioner 1 .
  • the compressor 21, the outdoor heat exchanger 22 (condenser), the outdoor expansion valve 24, and the indoor heat exchanger 12 (evaporator) in that order, a refrigeration cycle in which the refrigerant circulates.
  • the compressor 21, the indoor heat exchanger 12 (condenser), the outdoor expansion valve 24, and the outdoor heat exchanger 22 (evaporator) in that order become a refrigeration cycle in which the refrigerant circulates.
  • one of the “condenser” and the “evaporator” is the outdoor heat exchanger 22, and the other is the indoor heat exchanger 12.
  • FIG. 3 is a configuration diagram of the air conditioner 1.
  • the indoor unit 10 is mainly provided with an indoor terminal block 110 and an indoor control circuit 120 .
  • the indoor control circuit 120 is a circuit that controls the indoor unit 10 .
  • Indoor control circuit 120 mainly includes relay 121 , NF (noise filter) 122 , CNV (rectifier circuit) 123 , SW (switching) power supply 124 , communication circuit 125 , and HA (home automation) terminal 126 .
  • the outdoor unit 20 is mainly provided with an outdoor terminal block 210 and an outdoor control circuit 220 .
  • the outdoor control circuit 220 is a circuit that controls the outdoor unit 20 .
  • the outdoor control circuit 220 mainly includes an NF 221 , a CNV 222 , a SW power supply 223 and a communication circuit 224 .
  • the ventilator 30 is provided with a first terminal block 310 , a second terminal block 320 , a ventilation control circuit 330 , a display section 341 , a SW 342 , a ventilation fan 343 and an ST motor 344 .
  • the ventilation control circuit 330 is a circuit that controls the ventilation device 30 . Ventilation control circuit 330 mainly includes NF 331 , CNV 332 , SW power supply 333 , FET (field effect transistor) 334 , MPU (microprocessor) 335 , HA terminal 336 , and photocoupler 337 .
  • the indoor unit 10 and the ventilation device 30 are connected via the first cable 61 . Also, the outdoor unit 20 and the ventilation device 30 are connected via a second cable 62 .
  • a third cable 63 extending from a power plug 40 is connected to the indoor unit 10 , and power is supplied from a commercial power source to the indoor unit 10 via the power plug 40 .
  • the first cable 61, the second cable 62 and the third cable 63 are F cables such as VVF cables, for example.
  • the first cable 61 includes first power lines 41 a and 41 b and a first communication line 51 .
  • the second cable 62 includes second power lines 42 a and 42 b and a second communication line 52 .
  • the third cable 63 includes third power lines 43a and 43b.
  • One third power line 43 a of the third cable 63 is connected to the indoor control circuit 120 in the indoor unit 10 .
  • the third power supply line 43a is connected to the SW power supply 124 via the NF122 and the CNV123.
  • a fourth power line 44 a branched from the third power line 43 a is connected to the connection terminal 111 of the indoor terminal block 110 .
  • a relay 121 is provided on the fourth power line 44a, and is controlled to stop power supply to the outdoor unit 20 and the ventilation device 30 when the air conditioning operation and the ventilation operation are stopped. When starting the air conditioning operation or the ventilation operation, the relay 121 is controlled to start supplying power to the outdoor unit 20 and the ventilation device 30 .
  • the relay 121 is turned on to supply power to the ventilator 30 .
  • the fourth power line 44 a connects to the first power line 41 a of the first cable 41 via the connection terminal 111 .
  • the other third power line 43b of the third cable 63 is branched at connection terminals 112 and 113 provided on the indoor terminal block 110 and connected to the fourth power line 44b and the first power line 41b of the first cable 41.
  • the fourth power line 44 b is connected to the indoor control circuit 120 .
  • the first power line 41 a of the first cable 61 branches off at connection terminals 311 and 312 provided on the first terminal block 310 of the ventilator 30 . That is, the first power line 41 a is connected to the sixth power line 46 a connected to the connection terminal 311 and the seventh power line 47 a connected to the connection terminal 312 . Also, the first power line 41 b of the first cable 61 is branched at connection terminals 313 and 314 provided on the first terminal block 310 . The first power line 41 b is connected to the sixth power line 46 b connected to the connection terminal 313 and the seventh power line 47 b connected to the connection terminal 314 .
  • the sixth power lines 46 a and 46 b are connected to the ventilation control circuit 330 .
  • the sixth power lines 46a and 46b are connected to the SW power supply 333 via the NF 331 and CNV 332, and the required power is generated in the SW power supply 333, and supplied to each unit such as the display unit 341, the SW 342, the ventilation fan 343, the ST motor 344, and the MPU 335.
  • power is supplied to the ventilator 30 from the indoor unit 10 via the first power lines 41 a and 41 b of the first cable 61 . Therefore, the ventilator 30 does not require a dedicated power plug for the ventilator 30 . Therefore, even if there is only one power outlet near the installation location of the air conditioner 1, it is possible to supply the ventilator 30 with power from the commercial power supplied through the power plug 40 of the indoor unit 10.
  • the seventh power lines 47a and 47b are connected to the second power lines 42a and 42b of the second cable 62 via connection terminals 321 and 322 provided on the second terminal block 320 of the ventilator 30, respectively.
  • the second power lines 42a and 42b are connected to the fifth power lines 45a and 45b via connection terminals 211 and 212 provided on the outdoor terminal block 210, respectively.
  • the fifth power lines 45 a and 45 b are connected to the outdoor control circuit 220 .
  • the fifth power supply lines 45 a and 45 b are connected to the SW power supply 223 via the NF 221 and CNV 222 . Necessary power is generated in the SW power supply 223 and supplied to each part of the outdoor unit 20 .
  • the outdoor unit 20 is supplied with power from the indoor unit 10 via the first power lines 41 a and 41 b of the first cable 61 and the second power lines 42 a and 42 b of the second cable 42 .
  • the outdoor unit 20 does not require a dedicated power plug for the outdoor unit 20, and it is possible to avoid running out of outlets.
  • the indoor unit 10 is not provided with a terminal block for power supply to the ventilation device 30 and a terminal block for power supply to the outdoor unit 20, power can be supplied from one indoor terminal block 110 to the ventilation device 30 and the outdoor unit 20.
  • the first communication line 51 of the first cable 61 is connected to the fourth communication line 54 via the connection terminal 114 of the indoor terminal block 110 of the indoor unit 10 .
  • the fourth communication line 54 is connected to the communication circuit 125 of the indoor control circuit 120 .
  • the first communication line 51 is also connected to the sixth communication line 56 via the connection terminal 315 of the first terminal block 310 of the ventilator 30 .
  • the sixth communication line 56 is connected to the connection terminal 323 of the second terminal block 320 without passing through the ventilation control circuit 330 .
  • the sixth communication line 56 connects to the second communication line 52 of the second cable 62 via the connection terminal 323 .
  • the second communication line 52 is connected to the fifth communication line 55 via a connection terminal 213 provided on the outdoor terminal block 210 .
  • the fifth communication line 55 connects to the communication circuit 224 of the outdoor control circuit 220 .
  • the indoor unit 10 and the outdoor unit 20 can communicate through a communication path that does not pass through the ventilation control circuit 330 .
  • the indoor unit 10 and the outdoor unit 20 transmit and receive information such as instructions received via the remote control communication unit 11 via this communication path.
  • the communication path between the indoor unit 10 and the outdoor unit 20 is formed to pass through the ventilation control circuit 330, a decrease in signal strength of communication becomes a problem.
  • the communication path between the indoor unit 10 and the outdoor unit 20 does not pass through the ventilation control circuit 330 . Therefore, it is possible to prevent the signal strength of communication from deteriorating.
  • the indoor unit 10 and the ventilation control circuit 330 are connected by third communication lines 53a and 53b provided separately from the first cable 61.
  • the third communication lines 53 a and 53 b are connected to the HA terminal 126 of the indoor unit 10 and the HA terminal 336 of the ventilator 30 .
  • Communication between the indoor unit 10 and the ventilation device 30 is performed via third communication lines 53a and 53b.
  • information related to control of the ventilation device 30, such as operation start/stop of the ventilation device 30, received via the remote control communication unit 11 is transmitted to the ventilation device 30 via the third communication lines 53a and 53b.
  • An MPU (microprocessor) 335 of the ventilation control circuit 330 controls ventilation based on the information received via the third communication lines 53a and 53b.
  • the indoor unit 10 and the ventilation control circuit 330 can communicate via the third communication lines 53a and 53b, so communication between the indoor unit 10 and the ventilation device 30 can be reliably performed while preventing deterioration in communication quality between the indoor unit 10 and the outdoor unit 20.
  • cables of the same type are connected to the indoor terminal block 110, the outdoor terminal block 210, the first terminal block 310, and the second terminal block 320. Therefore, the indoor terminal block 110 of the indoor unit 10 and the outdoor terminal block 210 of the outdoor unit 20 can be directly connected with a cable without installing the ventilation device 30 .
  • commercial AC power is directly supplied from the indoor unit 10 to the outdoor unit 20, and the indoor unit 10 and the outdoor unit 20 are directly connected by a cable communication line.
  • the air conditioner 1 of the present embodiment power is supplied to the ventilation device 30 via the indoor unit 10, so even if the number of outlets is limited at the installation position of the air conditioner 1, power can be supplied to the ventilation device 30.
  • the air conditioner 1 of the present embodiment is compatible with both a power supply method in which power is supplied from the indoor unit 10 to the ventilation device 30 and power is supplied from the indoor unit 10 to the outdoor unit 20 via the ventilation device 30, and a power supply method in which power is supplied directly from the indoor unit 10 to the outdoor unit 20.
  • both communication between the indoor unit 10 and the outdoor unit 20 via the ventilation device 30 and communication between the indoor unit 10 and the outdoor unit 20 without the ventilation device 30 are supported. Therefore, the user can select whether to install the air conditioner 1 with the ventilation device 30 or install the air conditioner 1 without the ventilation device 30 .
  • FIG. 4 is a schematic configuration diagram of an air conditioner 2 according to the second embodiment.
  • FIG. 4 mainly shows the configuration different from the air conditioner 2 of the first embodiment, and the different configuration will be mainly described below.
  • communication between the indoor unit 10 and the ventilation device 30 is also performed via the first communication line 51 included in the first cable 61, and there is no connection by the third communication lines 53a, 53b between the indoor unit 10 and the ventilation device 30 as described in the first embodiment.
  • the first communication line 51 of the first cable 61 connects with the seventh communication line 507 connected to the connection terminal 315 .
  • a seventh communication line 507 connects to the communication circuit 3301 of the ventilation control circuit 3300 .
  • a sixth communication line 56 connected to the connection terminal 323 of the second terminal block 320 is also connected to the communication circuit 3301 .
  • the communication path between the indoor unit 10 and the outdoor unit 20 includes the communication circuit 3301 of the ventilator 30 . Therefore, a decrease in signal strength becomes a problem.
  • an amplifier 350 is arranged on the communication path between the indoor unit 10 and the outdoor unit 20 to increase the signal strength.
  • an amplifier 350 is arranged on the sixth communication line 56 between the communication circuit 3301 of the ventilator 30 and the second cable 62 . Accordingly, since the signal strength related to communication is increased by the amplifier 350, deterioration of communication quality between the indoor unit 10 and the outdoor unit 20 can be prevented.
  • the amplifier 350 only needs to be provided on the communication path between the communication circuit 125 of the indoor unit 10 and the communication circuit 224 of the outdoor unit 20, and its position is not limited to the embodiment.
  • amplifier 350 may be placed on seventh communication line 507 between first cable 61 and communication circuit 3301 in ventilator 30 .
  • the amplifier 350 may be arranged on the fourth communication line 54 between the communication circuit 125 and the first cable 61 in the indoor unit 10 .
  • the amplifier 350 may be arranged on the fifth communication line 55 between the communication circuit 224 and the second cable 62 in the outdoor unit 20 .
  • two or more amplifiers 350 may be arranged on the communication path between the indoor unit 10 and the outdoor unit 20 .
  • FIG. 5 is a diagram showing a ventilation device according to a modification.
  • the ventilation device 300 shown in FIG. 5 is arranged adjacent to the side of the indoor unit.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

[Problem] The purpose of the present invention is to make it possible to supply electric power to a ventilation device even when there is a restriction on the number of outlets. [Solution] The present invention comprises an indoor unit to which electric power is supplied from a commercial power supply, and a ventilation device. The ventilation device has a first connection terminal to which a first cable is connected, and a second connection terminal to which a second cable is connected. Electric power is supplied to the ventilation device from the indoor unit via the first cable. Additionally, electric power is supplied to the outdoor unit from the indoor unit via the first cable and the second cable.

Description

空気調和機及び換気装置Air conditioners and ventilators
　本発明は、空気調和機及び換気装置に関する。 The present invention relates to air conditioners and ventilators.
　換気機能を備える空気調和機が知られている。このような空気調和機としては、室内機が換気機能を内蔵するものや、室内機とは別に換気ユニットが設けられているものが知られている。特許文献１には、室内機と壁面の間に配置される換気装置が開示されている。このように、換気装置が室内機と壁面の間に配置されるため、設置に係る壁の占有面積が増えることがない。 Air conditioners with ventilation functions are known. As such air conditioners, there are known those in which the indoor unit has a built-in ventilation function, and those in which a ventilation unit is provided separately from the indoor unit. Patent Literature 1 discloses a ventilation device arranged between an indoor unit and a wall surface. In this way, since the ventilation device is arranged between the indoor unit and the wall surface, the installation area of the wall does not increase.
特開２００６－５２８８８号公報JP-A-2006-52888
　換気装置が室内機とは別に設けられている場合、換気装置への給電のために、換気装置に電源コード及び電源プラグを設ける必要があり、さらに、２つのコンセントが必要になる。しかしながら、空気調和機が設置される壁面には、コンセントが１つしか設けられていない場合があるという問題があった。 　If the ventilation system is installed separately from the indoor unit, it is necessary to install a power cord and a power plug on the ventilation system in order to supply power to the ventilation system, and two outlets are required. However, there is a problem that only one outlet may be provided on the wall on which the air conditioner is installed.
　本発明はこのような問題点に鑑みなされたもので、コンセントの数に制限がある場合でも、換気装置への給電を可能とすることを目的とする。 The present invention has been made in view of such problems, and an object of the present invention is to enable power supply to a ventilation device even when the number of outlets is limited.
　そこで、本発明は、空気調和機であって、商用電源から給電される室内機と、換気装置とを備え、前記換気装置は、第１ケーブルが接続する第１接続端子と、第２ケーブルが接続する第２接続端子と、を有し、前記換気装置は、前記第１ケーブルを介して前記室内機から給電され、室外機は、前記第１ケーブル及び前記第２ケーブルを介して前記室内機から給電される。 Therefore, the present invention is an air conditioner comprising an indoor unit powered by a commercial power supply and a ventilation device, the ventilation device having a first connection terminal to which a first cable is connected and a second connection terminal to which a second cable is connected, the ventilation device is powered by the indoor unit via the first cable, and the outdoor unit is powered by the indoor unit via the first cable and the second cable.
　本発明の他の形態は、空気調和機であって、商用電源から給電される室内機と、室外機と、を備え、前記室内機から第１ケーブルを介して換気装置に給電され、前記室内機から前記第１ケーブル及び前記第２ケーブルを介して前記室外機に給電される第１の給電方式と、前記室内機から第３ケーブルを介して前記室外機に給電される第２の給電方式と、を選択可能である。 Another aspect of the present invention is an air conditioner comprising an indoor unit powered by a commercial power supply and an outdoor unit, and it is possible to select a first power supply method in which power is supplied from the indoor unit to the ventilation device through the first cable and power is supplied from the indoor unit to the outdoor unit through the first cable and the second cable, and a second power supply method in which power is supplied from the indoor unit to the outdoor unit through the third cable.
　本発明の他の形態は、空気調和機であって、商用電源から給電される室内機と、換気装置とを備え、前記室内機と前記換気装置は、電源線を含むケーブルで接続され、かつ前記ケーブルとは別に設けられた通信線を介して接続される。 Another aspect of the present invention is an air conditioner comprising an indoor unit powered by a commercial power supply and a ventilation device, the indoor unit and the ventilation device being connected by a cable including a power line, and connected via a communication line provided separately from the cable.
　本発明の他の形態は、換気装置であって、第１ケーブルが接続する第１接続端子と、第２ケーブルが接続する第２接続端子と、を備え、前記換気装置は、前記商用電源から給電される室内機から前記第１ケーブルを介して給電され、室外機は、前記第１ケーブル及び前記第２ケーブルを介して前記室内機から給電される。 Another aspect of the present invention is a ventilation device comprising a first connection terminal to which a first cable is connected and a second connection terminal to which a second cable is connected, the ventilation device is powered via the first cable from an indoor unit powered by the commercial power supply, and the outdoor unit is powered by the indoor unit via the first cable and the second cable.
　本発明の他の形態は、商用電源から給電される室内機の背面又は側面に配置される換気装置であって、換気装置と室内機は、電源線を含むケーブルで接続され、かつケーブルとは別に設けられた通信線で接続される。 Another aspect of the present invention is a ventilation device that is placed on the back or side of an indoor unit that is powered by a commercial power source, and the ventilation device and the indoor unit are connected by a cable including a power line, and by a communication line that is provided separately from the cable.
　本発明によれば、コンセントの数に制限がある場合でも、換気装置への給電を可能とすることができる。 According to the present invention, even if the number of outlets is limited, it is possible to supply power to the ventilator.
第１の実施形態に係る空気調和機の外観図である。1 is an external view of an air conditioner according to a first embodiment; FIG. 冷媒回路を示す図である。It is a figure which shows a refrigerant circuit. 空気調和機の構成図である。1 is a configuration diagram of an air conditioner; FIG. 第２の実施形態に係る空気調和機の構成図である。FIG. 2 is a configuration diagram of an air conditioner according to a second embodiment; FIG. 変形例に係る換気装置を示す図である。It is a figure which shows the ventilation apparatus which concerns on a modification.
（第１の実施形態）
　図１は、第１の実施形態に係る空気調和機の外観図である。本実施形態の空気調和機１は、空気調和の機能を有する室内機１０及び室外機２０と、換気の機能を有する換気装置３０と、を備えている。なお、図１の左上には、室内機１０と換気装置３０の外観を示し、図１の右上には、室内機１０と換気装置３０を横から見た状態を示している。 (First embodiment)
FIG. 1 is an external view of an air conditioner according to the first embodiment. The air conditioner 1 of this embodiment includes an indoor unit 10 and an outdoor unit 20 that have an air conditioning function, and a ventilator 30 that has a ventilation function. The upper left of FIG. 1 shows the appearance of the indoor unit 10 and the ventilation device 30, and the upper right of FIG. 1 shows the state of the indoor unit 10 and the ventilation device 30 viewed from the side.
　換気装置３０は、室内機１０と壁Ａの間に設けられている。換気装置３０には外気を取り込む吸気ホース３０１が接続されている。吸気ホース３０１は、室内機１０に設けられた冷媒配管１０１等と共に、壁Ａに設けられた孔を介して室外に延びるように配置されている。換気装置３０は、主にフィルタと、ブロアファンと、吹出口と、を備え、吸気ホース３０１を介して取り込まれた外気は、フィルタを通過し、吹出口から室内に送られる。 The ventilation device 30 is provided between the indoor unit 10 and the wall A. An intake hose 301 is connected to the ventilator 30 to take in outside air. The intake hose 301 is arranged to extend to the outside through a hole provided in the wall A together with the refrigerant pipe 101 and the like provided in the indoor unit 10 . The ventilator 30 mainly includes a filter, a blower fan, and an air outlet, and outside air taken in through the intake hose 301 passes through the filter and is sent into the room from the air outlet.
　空気調和機１は、冷凍サイクル（ヒートポンプサイクル）で冷媒を循環させることによって、空調を行う。空気調和機１は、室内（被空調空間）に設置される室内機１０と、屋外（室外）に設置される室外機２０と、ユーザによって操作されるリモコン１９と、を備えている。 The air conditioner 1 performs air conditioning by circulating a refrigerant in a refrigeration cycle (heat pump cycle). The air conditioner 1 includes an indoor unit 10 installed indoors (a space to be air-conditioned), an outdoor unit 20 installed outdoors (outdoors), and a remote controller 19 operated by a user.
　室内機１０は、リモコン通信部１１を備えている。リモコン通信部１１は、赤外線通信等によって、リモコン１９との間で所定の信号を送受信する。例えば、リモコン通信部１１は、空調運転及び換気運転の開始／停止指令、設定温度の変更、運転モードの変更、タイマの設定等の信号をリモコン１９から受信する。また、リモコン通信部１１は、室内温度の検出値等をリモコン１９に送信する。室内機１０と室外機２０とは、冷媒配管を介して接続されるとともに、通信線、電源線を介して接続されている。なお、リモコン１９とは別に換気装置３０を操作するための換気装置用リモコンを備えてもよい。本実施形態の空気調和機１は、換気装置用リモコンからの換気運転の信号も含めて室内機１０のリモコン通信部１１で受信する。 The indoor unit 10 includes a remote control communication section 11. The remote controller communication unit 11 transmits and receives predetermined signals to and from the remote controller 19 by infrared communication or the like. For example, the remote control communication unit 11 receives signals from the remote controller 19 such as start/stop commands for air conditioning operation and ventilation operation, change in set temperature, change in operation mode, and timer setting. Further, the remote control communication unit 11 transmits the detected room temperature and the like to the remote control 19 . The indoor unit 10 and the outdoor unit 20 are connected via a refrigerant pipe, and are also connected via a communication line and a power line. A ventilator remote controller for operating the ventilator 30 may be provided separately from the remote controller 19 . In the air conditioner 1 of the present embodiment, the remote controller communication unit 11 of the indoor unit 10 receives the signal including the ventilation operation signal from the ventilator remote controller.
　図２は、実施形態に係る室内機１０及び室外機２０の冷媒回路Ｑを示す図である。なお、図２に示す実線矢印は、暖房運転時における冷媒の流れを示している。また、図２に示す破線矢印は、冷房運転時における冷媒の流れを示している。 FIG. 2 is a diagram showing refrigerant circuits Q of the indoor unit 10 and the outdoor unit 20 according to the embodiment. The solid line arrows shown in FIG. 2 indicate the flow of the refrigerant during the heating operation. Also, the dashed arrows shown in FIG. 2 indicate the flow of the refrigerant during the cooling operation.
　室内機１０は、リモコン通信部１１の他に、室内熱交換器１２と、室内ファン１４と、を備えている。室内熱交換器１２において、その伝熱管（図示せず）を通流する冷媒と、室内ファン１４から送り混まれる室内空気と、の間で熱交換が行われる。室内熱交換器１２は、後述の四方弁２５の切り替えにより凝縮器または蒸発器として動作する。室内ファン１４は、室内熱交換器１２の付近に設置されている。室内ファン１４は、室内ファンモータ１４ａの駆動によって、室内熱交換器１２に室内空気を送り込む。 The indoor unit 10 includes an indoor heat exchanger 12 and an indoor fan 14 in addition to the remote control communication unit 11 . In the indoor heat exchanger 12 , heat is exchanged between the refrigerant flowing through the heat transfer tubes (not shown) and the indoor air mixed from the indoor fan 14 . The indoor heat exchanger 12 operates as a condenser or an evaporator by switching a four-way valve 25, which will be described later. The indoor fan 14 is installed near the indoor heat exchanger 12 . The indoor fan 14 sends indoor air into the indoor heat exchanger 12 by driving the indoor fan motor 14a.
　室外機２０は、圧縮機２１と、室外熱交換器２２と、室外ファン２３と、室外膨張弁２４（膨張弁）と、四方弁２５と、制御部２８と、を備えている。圧縮機２１は、圧縮機モータ２１ａの駆動によって、低温低圧のガス冷媒を圧縮し、高温高圧のガス冷媒として吐出する。室外熱交換器２２において、その伝熱管（図示せず）を通流する冷媒と、室外ファン２３から送り込まれる外気と、の間で熱交換が行われる。室外熱交換器２２は、四方弁２５の切り替えにより凝縮器または蒸発器として動作する。 The outdoor unit 20 includes a compressor 21, an outdoor heat exchanger 22, an outdoor fan 23, an outdoor expansion valve 24 (expansion valve), a four-way valve 25, and a controller 28. The compressor 21 compresses a low-temperature, low-pressure gas refrigerant and discharges it as a high-temperature, high-pressure gas refrigerant by driving a compressor motor 21a. In the outdoor heat exchanger 22 , heat exchange takes place between the refrigerant flowing through the heat transfer tubes (not shown) and the outside air sent from the outdoor fan 23 . The outdoor heat exchanger 22 operates as a condenser or an evaporator by switching the four-way valve 25 .
　室外ファン２３は、室外熱交換器２２の付近に設置されている。室外ファン２３は、室外ファンモータ２３ａの駆動によって、室外熱交換器２２に外気を送り込む。室外膨張弁２４は、「凝縮器」（室外熱交換器２２及び室内熱交換器１２の一方）で凝縮した冷媒を減圧する機能を有している。なお、室外膨張弁２４において減圧された冷媒は、「蒸発器」（室外熱交換器２２及び室内熱交換器１２の他方）に導かれる。 The outdoor fan 23 is installed near the outdoor heat exchanger 22. The outdoor fan 23 sends outside air to the outdoor heat exchanger 22 by driving the outdoor fan motor 23a. The outdoor expansion valve 24 has a function of decompressing the refrigerant condensed in the "condenser" (one of the outdoor heat exchanger 22 and the indoor heat exchanger 12). The refrigerant decompressed by the outdoor expansion valve 24 is guided to an "evaporator" (the other of the outdoor heat exchanger 22 and the indoor heat exchanger 12).
　四方弁２５は、空気調和機１の運転モードに応じて、冷媒の流路を切り替える弁である。四方弁２５の切り替えにより、冷房運転時には、破線矢印で示すように、圧縮機２１、室外熱交換器２２（凝縮器）、室外膨張弁２４、及び室内熱交換器１２（蒸発器）の順に冷媒が循環する冷凍サイクルとなる。また、四方弁の切り替えにより、暖房運転時には、実線矢印で示すように、圧縮機２１、室内熱交換器１２（凝縮器）、室外膨張弁２４、及び室外熱交換器２２（蒸発器）の順に冷媒が循環する冷凍サイクルとなる。すなわち、圧縮機２１、「凝縮器」、室外膨張弁３４、及び「蒸発器」を順次に介して、冷凍サイクルで冷媒が循環する冷媒回路Ｑにおいて、前記した「凝縮器」及び「蒸発器」の一方は室外熱交換器２２であり、他方は室内熱交換器１２である。 The four-way valve 25 is a valve that switches the refrigerant flow path according to the operation mode of the air conditioner 1 . By switching the four-way valve 25, during cooling operation, as indicated by the dashed arrows, the compressor 21, the outdoor heat exchanger 22 (condenser), the outdoor expansion valve 24, and the indoor heat exchanger 12 (evaporator) in that order, a refrigeration cycle in which the refrigerant circulates. In addition, by switching the four-way valve, during heating operation, as indicated by the solid line arrows, the compressor 21, the indoor heat exchanger 12 (condenser), the outdoor expansion valve 24, and the outdoor heat exchanger 22 (evaporator) in that order become a refrigeration cycle in which the refrigerant circulates. That is, in the refrigerant circuit Q in which the refrigerant circulates in the refrigeration cycle through the compressor 21, the “condenser”, the outdoor expansion valve 34, and the “evaporator” in sequence, one of the “condenser” and the “evaporator” is the outdoor heat exchanger 22, and the other is the indoor heat exchanger 12.
　図３は、空気調和機１の構成図である。室内機１０には、室内端子台１１０と、室内制御回路１２０と、が、主に設けられている。室内制御回路１２０は、室内機１０の制御を行う回路である。室内制御回路１２０は、主に、リレー１２１と、ＮＦ（ノイズフィルタ）１２２と、ＣＮＶ（整流回路）１２３と、ＳＷ（スイッチング）電源１２４と、通信回路１２５と、ＨＡ（ホームオートメーション）端子１２６と、を備えている。 3 is a configuration diagram of the air conditioner 1. FIG. The indoor unit 10 is mainly provided with an indoor terminal block 110 and an indoor control circuit 120 . The indoor control circuit 120 is a circuit that controls the indoor unit 10 . Indoor control circuit 120 mainly includes relay 121 , NF (noise filter) 122 , CNV (rectifier circuit) 123 , SW (switching) power supply 124 , communication circuit 125 , and HA (home automation) terminal 126 .
　室外機２０には、室外端子台２１０と、室外制御回路２２０と、が、主に設けられている。室外制御回路２２０は、室外機２０の制御を行う回路である。室外制御回路２２０は、主に、ＮＦ２２１と、ＣＮＶ２２２と、ＳＷ電源２２３と、通信回路２２４と、を備えている。 The outdoor unit 20 is mainly provided with an outdoor terminal block 210 and an outdoor control circuit 220 . The outdoor control circuit 220 is a circuit that controls the outdoor unit 20 . The outdoor control circuit 220 mainly includes an NF 221 , a CNV 222 , a SW power supply 223 and a communication circuit 224 .
　換気装置３０には、第１端子台３１０と、第２端子台３２０と、換気制御回路３３０と、表示部３４１と、ＳＷ３４２と、換気ファン３４３と、ＳＴモータ３４４と、が設けられている。換気制御回路３３０は、換気装置３０の制御を行う回路である。換気制御回路３３０は、主に、ＮＦ３３１と、ＣＮＶ３３２と、ＳＷ電源３３３と、ＦＥＴ（電界効果トランジスタ）３３４と、ＭＰＵ（マイクロプロセッサ）３３５と、ＨＡ端子３３６と、フォトカプラ３３７と、を備えている。 The ventilator 30 is provided with a first terminal block 310 , a second terminal block 320 , a ventilation control circuit 330 , a display section 341 , a SW 342 , a ventilation fan 343 and an ST motor 344 . The ventilation control circuit 330 is a circuit that controls the ventilation device 30 . Ventilation control circuit 330 mainly includes NF 331 , CNV 332 , SW power supply 333 , FET (field effect transistor) 334 , MPU (microprocessor) 335 , HA terminal 336 , and photocoupler 337 .
　室内機１０と換気装置３０は、第１ケーブル６１を介して接続されている。また、室外機２０と換気装置３０は、第２ケーブル６２を介して接続されている。室内機１０には、電源プラグ４０から延びる第３ケーブル６３が接続し、電源プラグ４０を介して、商用電源から室内機１０へ給電される。なお、第１ケーブル６１、第２ケーブル６２及び第３ケーブル６３は、例えばＶＶＦケーブル等のＦケーブルである。第１ケーブル６１は、第１電源線４１ａ，４１ｂと、第１通信線５１と、を含む。第２ケーブル６２は、第２電源線４２ａ，４２ｂと、第２通信線５２と、を含む。第３ケーブル６３は、第３電源線４３ａ，４３ｂを含む。 The indoor unit 10 and the ventilation device 30 are connected via the first cable 61 . Also, the outdoor unit 20 and the ventilation device 30 are connected via a second cable 62 . A third cable 63 extending from a power plug 40 is connected to the indoor unit 10 , and power is supplied from a commercial power source to the indoor unit 10 via the power plug 40 . The first cable 61, the second cable 62 and the third cable 63 are F cables such as VVF cables, for example. The first cable 61 includes first power lines 41 a and 41 b and a first communication line 51 . The second cable 62 includes second power lines 42 a and 42 b and a second communication line 52 . The third cable 63 includes third power lines 43a and 43b.
　次に、電力供給に係る構成について説明する。第３ケーブル６３の一方の第３電源線４３ａは、室内機１０において、室内制御回路１２０に接続する。第３電源線４３ａは、具体的には、ＮＦ１２２及びＣＮＶ１２３を介してＳＷ電源１２４に接続する。また、第３電源線４３ａから分岐した第４電源線４４ａは、室内端子台１１０の接続端子１１１に接続する。第４電源線４４ａには、リレー１２１が設けられ、空調運転及び換気運転の停止時には、室外機２０及び換気装置３０への給電を停止させるよう制御される。空調運転又は換気運転を開始する際は、室外機２０及び換気装置３０への給電を開始するようリレー１２１が制御される。空調運転を行わず、換気運転を単独で行う場合にも、リレー１２１をオンにして、換気装置３０への給電が行われる。第４電源線４４ａは、接続端子１１１を介して、第１ケーブル４１の第１電源線４１ａに接続する。 Next, the configuration related to power supply will be explained. One third power line 43 a of the third cable 63 is connected to the indoor control circuit 120 in the indoor unit 10 . Specifically, the third power supply line 43a is connected to the SW power supply 124 via the NF122 and the CNV123. A fourth power line 44 a branched from the third power line 43 a is connected to the connection terminal 111 of the indoor terminal block 110 . A relay 121 is provided on the fourth power line 44a, and is controlled to stop power supply to the outdoor unit 20 and the ventilation device 30 when the air conditioning operation and the ventilation operation are stopped. When starting the air conditioning operation or the ventilation operation, the relay 121 is controlled to start supplying power to the outdoor unit 20 and the ventilation device 30 . Even when the air conditioning operation is not performed and the ventilation operation is performed alone, the relay 121 is turned on to supply power to the ventilator 30 . The fourth power line 44 a connects to the first power line 41 a of the first cable 41 via the connection terminal 111 .
　第３ケーブル６３の他方の第３電源線４３ｂは、室内端子台１１０に設けられた接続端子１１２，１１３において分岐し、第４電源線４４ｂ及び第１ケーブル４１の第１電源線４１ｂに接続する。第４電源線４４ｂは、室内制御回路１２０に接続されている。本構成により、ＳＷ電源１２４への給電が行われ、ＳＷ電源１２４においては、必要な電源が生成され室内機１０の各部に供給される。 The other third power line 43b of the third cable 63 is branched at connection terminals 112 and 113 provided on the indoor terminal block 110 and connected to the fourth power line 44b and the first power line 41b of the first cable 41. The fourth power line 44 b is connected to the indoor control circuit 120 . With this configuration, power is supplied to the SW power supply 124 , and the required power is generated in the SW power supply 124 and supplied to each part of the indoor unit 10 .
　第１ケーブル６１の第１電源線４１ａは、換気装置３０の第１端子台３１０に設けられた接続端子３１１，３１２において分岐する。すなわち、第１電源線４１ａは、接続端子３１１に接続される第６電源線４６ａ及び接続端子３１２に接続される第７電源線４７ａに接続する。また、第１ケーブル６１の第１電源線４１ｂは、第１端子台３１０に設けられた接続端子３１３，３１４において分岐する。そして、第１電源線４１ｂは、接続端子３１３に接続される第６電源線４６ｂと、接続端子３１４に接続される第７電源線４７ｂと、接続する。 The first power line 41 a of the first cable 61 branches off at connection terminals 311 and 312 provided on the first terminal block 310 of the ventilator 30 . That is, the first power line 41 a is connected to the sixth power line 46 a connected to the connection terminal 311 and the seventh power line 47 a connected to the connection terminal 312 . Also, the first power line 41 b of the first cable 61 is branched at connection terminals 313 and 314 provided on the first terminal block 310 . The first power line 41 b is connected to the sixth power line 46 b connected to the connection terminal 313 and the seventh power line 47 b connected to the connection terminal 314 .
　第６電源線４６ａ，４６ｂは、換気制御回路３３０に接続する。具体的には、第６電源線４６ａ，４６ｂは、ＮＦ３３１及びＣＮＶ３３２を介してＳＷ電源３３３に接続し、ＳＷ電源３３３において、必要な電源が生成され、表示部３４１、ＳＷ３４２、換気ファン３４３、ＳＴモータ３４４、ＭＰＵ３３５等の各部に供給される。このように、換気装置３０への給電は、第１ケーブル６１の第１電源線４１ａ，４１ｂを介して室内機１０より行われる。このため、換気装置３０は、換気装置３０の専用の電源プラグを必要としない。したがって、空気調和機１の設置場所の近くにコンセントが１つしかない場合においても、室内機１０の電源プラグ４０を介して供給される商用電源からの電力を換気装置３０に供給することができる。 The sixth power lines 46 a and 46 b are connected to the ventilation control circuit 330 . Specifically, the sixth power lines 46a and 46b are connected to the SW power supply 333 via the NF 331 and CNV 332, and the required power is generated in the SW power supply 333, and supplied to each unit such as the display unit 341, the SW 342, the ventilation fan 343, the ST motor 344, and the MPU 335. In this way, power is supplied to the ventilator 30 from the indoor unit 10 via the first power lines 41 a and 41 b of the first cable 61 . Therefore, the ventilator 30 does not require a dedicated power plug for the ventilator 30 . Therefore, even if there is only one power outlet near the installation location of the air conditioner 1, it is possible to supply the ventilator 30 with power from the commercial power supplied through the power plug 40 of the indoor unit 10.
　第７電源線４７ａ，４７ｂは、それぞれ、換気装置３０の第２端子台３２０に設けられた接続端子３２１，３２２を介して、第２ケーブル６２の第２電源線４２ａ，４２ｂに接続する。第２電源線４２ａ，４２ｂは、それぞれ室外端子台２１０に設けられた接続端子２１１，２１２を介して、第５電源線４５ａ，４５ｂに接続する。第５電源線４５ａ，４５ｂは、室外制御回路２２０に接続する。具体的には、第５電源線４５ａ，４５ｂは、ＮＦ２２１及びＣＮＶ２２２を介してＳＷ電源２２３に接続する。そして、ＳＷ電源２２３において、必要な電源が生成され室外機２０の各部に供給される。このように、室外機２０は、第１ケーブル６１の第１電源線４１ａ，４１ｂ及び第２ケーブル４２の第２電源線４２ａ，４２ｂを介して室内機１０から給電される。これにより、室外機２０においても、室外機２０の専用の電源プラグを必要とせず、コンセントが足りなくなるのを避けることができる。また、室内機１０に換気装置３０への給電用の端子台と、室外機２０への給電用の端子台の２つを設けずとも、１つの室内端子台１１０から換気装置３０及び室外機２０へ給電することができる。 The seventh power lines 47a and 47b are connected to the second power lines 42a and 42b of the second cable 62 via connection terminals 321 and 322 provided on the second terminal block 320 of the ventilator 30, respectively. The second power lines 42a and 42b are connected to the fifth power lines 45a and 45b via connection terminals 211 and 212 provided on the outdoor terminal block 210, respectively. The fifth power lines 45 a and 45 b are connected to the outdoor control circuit 220 . Specifically, the fifth power supply lines 45 a and 45 b are connected to the SW power supply 223 via the NF 221 and CNV 222 . Necessary power is generated in the SW power supply 223 and supplied to each part of the outdoor unit 20 . Thus, the outdoor unit 20 is supplied with power from the indoor unit 10 via the first power lines 41 a and 41 b of the first cable 61 and the second power lines 42 a and 42 b of the second cable 42 . As a result, the outdoor unit 20 does not require a dedicated power plug for the outdoor unit 20, and it is possible to avoid running out of outlets. In addition, even if the indoor unit 10 is not provided with a terminal block for power supply to the ventilation device 30 and a terminal block for power supply to the outdoor unit 20, power can be supplied from one indoor terminal block 110 to the ventilation device 30 and the outdoor unit 20.
　次に、通信線について説明する。第１ケーブル６１の第１通信線５１は、室内機１０の室内端子台１１０の接続端子１１４を介して第４通信線５４と接続する。第４通信線５４は、室内制御回路１２０の通信回路１２５に接続される。第１通信線５１はまた、換気装置３０の第１端子台３１０の接続端子３１５を介して第６通信線５６と接続する。第６通信線５６は、換気制御回路３３０を経由せずに、第２端子台３２０の接続端子３２３に接続する。第６通信線５６は、接続端子３２３を介して第２ケーブル６２の第２通信線５２に接続する。第２通信線５２は、室外端子台２１０に設けられた接続端子２１３を介して、第５通信線５５に接続する。第５通信線５５は、室外制御回路２２０の通信回路２２４に接続する。 Next, I will explain the communication lines. The first communication line 51 of the first cable 61 is connected to the fourth communication line 54 via the connection terminal 114 of the indoor terminal block 110 of the indoor unit 10 . The fourth communication line 54 is connected to the communication circuit 125 of the indoor control circuit 120 . The first communication line 51 is also connected to the sixth communication line 56 via the connection terminal 315 of the first terminal block 310 of the ventilator 30 . The sixth communication line 56 is connected to the connection terminal 323 of the second terminal block 320 without passing through the ventilation control circuit 330 . The sixth communication line 56 connects to the second communication line 52 of the second cable 62 via the connection terminal 323 . The second communication line 52 is connected to the fifth communication line 55 via a connection terminal 213 provided on the outdoor terminal block 210 . The fifth communication line 55 connects to the communication circuit 224 of the outdoor control circuit 220 .
　すなわち、室内制御回路１２０の通信回路１２５と室外制御回路２２０の通信回路２２４の間の通信経路は、換気装置３０の換気制御回路３３０を経由しない。したがって、室内機１０と室外機２０は、換気制御回路３３０を経由しない通信経路で通信を行うことができる。室内機１０と室外機２０は、この通信経路を介し、例えば、リモコン通信部１１を介して受信した指示等の情報の送受信を行う。室内機１０と室外機２０の間の通信経路が換気制御回路３３０を経由するように形成された場合には、通信の信号強度の低下が問題となる。これに対し、本実施形態においては、室内機１０と室外機２０の間の通信経路は、換気制御回路３３０を経由しない。したがって、通信の信号強が低下するのを防ぐことができる。 That is, the communication path between the communication circuit 125 of the indoor control circuit 120 and the communication circuit 224 of the outdoor control circuit 220 does not pass through the ventilation control circuit 330 of the ventilation device 30 . Therefore, the indoor unit 10 and the outdoor unit 20 can communicate through a communication path that does not pass through the ventilation control circuit 330 . The indoor unit 10 and the outdoor unit 20 transmit and receive information such as instructions received via the remote control communication unit 11 via this communication path. When the communication path between the indoor unit 10 and the outdoor unit 20 is formed to pass through the ventilation control circuit 330, a decrease in signal strength of communication becomes a problem. In contrast, in this embodiment, the communication path between the indoor unit 10 and the outdoor unit 20 does not pass through the ventilation control circuit 330 . Therefore, it is possible to prevent the signal strength of communication from deteriorating.
　さらに、室内機１０と換気制御回路３３０の間は、第１ケーブル６１とは別に設けられた第３通信線５３ａ，５３ｂで接続されている。第３通信線５３ａ，５３ｂは、室内機１０のＨＡ端子１２６及び換気装置３０のＨＡ端子３３６に接続されている。室内機１０と換気装置３０の間の通信は、第３通信線５３ａ，５３ｂを介して行われる。例えば、リモコン通信部１１を介して受信した、換気装置３０の運転開始／停止等、換気装置３０の制御に係る情報は、第３通信線５３ａ，５３ｂを介して換気装置３０に送信される。そして、換気制御回路３３０のＭＰＵ（マイクロプロセッサ）３３５は、第３通信線５３ａ，５３ｂを介して受信した情報に基づいて、換気に係る制御を行う。 Furthermore, the indoor unit 10 and the ventilation control circuit 330 are connected by third communication lines 53a and 53b provided separately from the first cable 61. The third communication lines 53 a and 53 b are connected to the HA terminal 126 of the indoor unit 10 and the HA terminal 336 of the ventilator 30 . Communication between the indoor unit 10 and the ventilation device 30 is performed via third communication lines 53a and 53b. For example, information related to control of the ventilation device 30, such as operation start/stop of the ventilation device 30, received via the remote control communication unit 11 is transmitted to the ventilation device 30 via the third communication lines 53a and 53b. An MPU (microprocessor) 335 of the ventilation control circuit 330 controls ventilation based on the information received via the third communication lines 53a and 53b.
　このように、室内機１０と換気制御回路３３０は、第３通信線５３ａ，５３ｂを介して通信を行うことができるので、室内機１０と室外機２０の通信品質の低下を防ぎつつ、室内機１０と換気装置３０の通信も確実に行うことができる。 In this way, the indoor unit 10 and the ventilation control circuit 330 can communicate via the third communication lines 53a and 53b, so communication between the indoor unit 10 and the ventilation device 30 can be reliably performed while preventing deterioration in communication quality between the indoor unit 10 and the outdoor unit 20.
　さらに、室内端子台１１０、室外端子台２１０、第１端子台３１０、第２端子台３２０には、同じ種類のケーブルが接続される。そのため、換気装置３０を設置せずに、室内機１０の室内端子台１１０と室外機２０の室外端子台２１０をケーブルで直接接続することもできる。この方式では、室内機１０から室外機２０に商用交流電源が直接給電され、且つ、室内機１０と室外機２０がケーブルの通信線で直接接続される。 Furthermore, cables of the same type are connected to the indoor terminal block 110, the outdoor terminal block 210, the first terminal block 310, and the second terminal block 320. Therefore, the indoor terminal block 110 of the indoor unit 10 and the outdoor terminal block 210 of the outdoor unit 20 can be directly connected with a cable without installing the ventilation device 30 . In this method, commercial AC power is directly supplied from the indoor unit 10 to the outdoor unit 20, and the indoor unit 10 and the outdoor unit 20 are directly connected by a cable communication line.
　以上のように、本実施形態の空気調和機１においては、室内機１０を介して換気装置３０への給電が行われるので、空気調和機１の設置位置において、コンセントの数に制限がある場合でも、換気装置３０への給電を可能とすることができる。 As described above, in the air conditioner 1 of the present embodiment, power is supplied to the ventilation device 30 via the indoor unit 10, so even if the number of outlets is limited at the installation position of the air conditioner 1, power can be supplied to the ventilation device 30.
　また、本実施形態の空気調和機１は、室内機１０から換気装置３０への給電及び室内機１０から換気装置３０を介した室外機２０への給電を行う給電方式と、室内機１０から室外機２０へ直接給電する給電方式の両方の方式に対応している。また、換気装置３０を介した室内機１０と室外機２０の通信と換気装置３０を介さない室内機１０と室外機２０の通信の両方に対応している。そのため、ユーザは換気装置３０を有する空気調和機１を設置するか、換気装置３０を有さない空気調和機１を設置するかを選択することができる。 In addition, the air conditioner 1 of the present embodiment is compatible with both a power supply method in which power is supplied from the indoor unit 10 to the ventilation device 30 and power is supplied from the indoor unit 10 to the outdoor unit 20 via the ventilation device 30, and a power supply method in which power is supplied directly from the indoor unit 10 to the outdoor unit 20. In addition, both communication between the indoor unit 10 and the outdoor unit 20 via the ventilation device 30 and communication between the indoor unit 10 and the outdoor unit 20 without the ventilation device 30 are supported. Therefore, the user can select whether to install the air conditioner 1 with the ventilation device 30 or install the air conditioner 1 without the ventilation device 30 .
（第２の実施形態）
　図４は、第２の実施形態に係る空気調和機２の概略構成図である。図４においては、第１の実施形態の空気調和機２と異なる構成を主に示し、以下では、異なる構成を主に説明する。第２の実施形態に係る空気調和機２においては、室内機１０と換気装置３０の間の通信も、第１ケーブル６１に含まれる第１通信線５１を介して行われ、第１の実施形態において説明したような、室内機１０と換気装置３０の間の第３通信線５３ａ，５３ｂによる接続はない。 (Second embodiment)
FIG. 4 is a schematic configuration diagram of an air conditioner 2 according to the second embodiment. FIG. 4 mainly shows the configuration different from the air conditioner 2 of the first embodiment, and the different configuration will be mainly described below. In the air conditioner 2 according to the second embodiment, communication between the indoor unit 10 and the ventilation device 30 is also performed via the first communication line 51 included in the first cable 61, and there is no connection by the third communication lines 53a, 53b between the indoor unit 10 and the ventilation device 30 as described in the first embodiment.
　第２の実施形態の換気装置３０においては、第１ケーブル６１の第１通信線５１は、接続端子３１５に接続される第７通信線５０７と、接続する。第７通信線５０７は、換気制御回路３３００の通信回路３３０１に接続する。通信回路３３０１には、第２端子台３２０の接続端子３２３に接続される第６通信線５６も接続される。このように、本実施形態においては、室内機１０と室外機２０の間の通信経路には、換気装置３０の通信回路３３０１が含まれる。そのため、信号強度の低下が問題となる。これに対し、本実施形態においては、換気装置３０において、室内機１０と室外機２０の間の通信経路上に、信号強度を高める増幅器３５０が配置される。具体的には、換気装置３０の通信回路３３０１と第２ケーブル６２の間において、第６通信線５６上に増幅器３５０が配置される。これにより、通信に係る信号強度は、増幅器３５０により高められるため、室内機１０と室外機２０の間の通信品質の低下を防ぐことができる。 In the ventilator 30 of the second embodiment, the first communication line 51 of the first cable 61 connects with the seventh communication line 507 connected to the connection terminal 315 . A seventh communication line 507 connects to the communication circuit 3301 of the ventilation control circuit 3300 . A sixth communication line 56 connected to the connection terminal 323 of the second terminal block 320 is also connected to the communication circuit 3301 . Thus, in this embodiment, the communication path between the indoor unit 10 and the outdoor unit 20 includes the communication circuit 3301 of the ventilator 30 . Therefore, a decrease in signal strength becomes a problem. On the other hand, in this embodiment, in the ventilator 30, an amplifier 350 is arranged on the communication path between the indoor unit 10 and the outdoor unit 20 to increase the signal strength. Specifically, an amplifier 350 is arranged on the sixth communication line 56 between the communication circuit 3301 of the ventilator 30 and the second cable 62 . Accordingly, since the signal strength related to communication is increased by the amplifier 350, deterioration of communication quality between the indoor unit 10 and the outdoor unit 20 can be prevented.
　なお、増幅器３５０は、室内機１０の通信回路１２５と、室外機２０の通信回路２２４の間の通信経路上に設けられていればよく、その位置は、実施形態に限定されるものではない。他の例としては、増幅器３５０は、換気装置３０において、第１ケーブル６１と、通信回路３３０１の間において、第７通信線５０７上に配置されてもよい。また、他の例としては、増幅器３５０は、室内機１０において、通信回路１２５と第１ケーブル６１の間において、第４通信線５４上に配置されてもよい。また、他の例としては、増幅器３５０は、室外機２０において、通信回路２２４と第２ケーブル６２の間において、第５通信線５５上に配置されてもよい。また、室内機１０と室外機２０の間の通信経路上に、２以上の増幅器３５０が配置されてもよい。 The amplifier 350 only needs to be provided on the communication path between the communication circuit 125 of the indoor unit 10 and the communication circuit 224 of the outdoor unit 20, and its position is not limited to the embodiment. As another example, amplifier 350 may be placed on seventh communication line 507 between first cable 61 and communication circuit 3301 in ventilator 30 . As another example, the amplifier 350 may be arranged on the fourth communication line 54 between the communication circuit 125 and the first cable 61 in the indoor unit 10 . As another example, the amplifier 350 may be arranged on the fifth communication line 55 between the communication circuit 224 and the second cable 62 in the outdoor unit 20 . Also, two or more amplifiers 350 may be arranged on the communication path between the indoor unit 10 and the outdoor unit 20 .
　なお、本発明は係る特定の実施形態に限定されるものではなく、例えばある実施形態の変形例を他の実施形態に適用するなど、特許請求の範囲に記載された本発明の要旨の範囲内において、種々の変形・変更が可能である。 It should be noted that the present invention is not limited to such a specific embodiment, and various modifications and changes are possible within the scope of the gist of the invention described in the claims, such as applying a modified example of one embodiment to another embodiment.
　そうした変形例としては、換気装置の設置時の、室内機と換気装置の位置関係は実施形態に限定されるものではない。図５は、変形例に係る換気装置を示す図である。図５に示す換気装置３００は、室内機の側面に隣接して配置される。 As such a modification, the positional relationship between the indoor unit and the ventilation device when the ventilation device is installed is not limited to the embodiment. FIG. 5 is a diagram showing a ventilation device according to a modification. The ventilation device 300 shown in FIG. 5 is arranged adjacent to the side of the indoor unit.
１、２　空気調和機
１０　室内機
１１　リモコン通信部
１９　リモコン
２０　室外機
３０，３００　換気装置
４０　電源プラグ
４１　第１ケーブル
４１ａ，４１ｂ　第１電源線
４２　第２ケーブル
４２ａ，４２ｂ　第２電源線
５１　第１通信線
５２　第２通信線
５３ａ，５３ｂ　第３通信線
１１０　室内端子台
１１１～１１４　接続端子
１２０　室内制御回路
１２５　通信回路
１２６　ＨＡ端子
２１０　室外端子台
２１１～２１３　接続端子
２２０　室外制御回路
２２４　通信回路
３１０　第１端子台
３１１～３１５　接続端子
３２０　第２端子台
３２１～３２３　接続端子
３３０，３３００　換気制御回路
３３６　ＨＡ端子
３５０　増幅器
５０７　第７通信線 1, 2 Air conditioner 10 Indoor unit 11 Remote control communication unit 19 Remote controller 20 Outdoor unit 30, 300 Ventilator 40 Power supply plug 41 First cable 41a, 41b First power supply line 42 Second cable 42a, 42b Second power supply line 51 First communication line 52 Second communication line 53a, 53b Third communication line 110 Indoor terminal block 111 to 114 Connection terminal 120 Indoor control circuit 1 25 communication circuit 126 HA terminal 210 outdoor terminal block 211 to 213 connection terminal 220 outdoor control circuit 224 communication circuit 310 first terminal block 311 to 315 connection terminal 320 second terminal block 321 to 323 connection terminal 330, 3300 ventilation control circuit 336 HA terminal 350 amplifier 507 seventh communication line

Claims (13)

  1. 　商用電源から給電される室内機と、
    　換気装置と
    を備え、
    　前記換気装置は、
    　第１ケーブルが接続する第１接続端子と、
    　第２ケーブルが接続する第２接続端子と、
    を有し、
    　前記換気装置は、前記第１ケーブルを介して前記室内機から給電され、
    　室外機は、前記第１ケーブル及び前記第２ケーブルを介して前記室内機から給電される、空気調和機。     an indoor unit powered by a commercial power supply;
    a ventilation device,
    The ventilator is
    a first connection terminal to which the first cable connects;
    a second connection terminal to which the second cable connects;
    has
    The ventilation device is powered from the indoor unit via the first cable,
    The outdoor unit is an air conditioner supplied with power from the indoor unit via the first cable and the second cable.
  2. 　前記第１ケーブルは、第１通信線を含み、
    　前記第２ケーブルは、第２通信線を含み、
    　前記室内機と前記室外機は、前記第１通信線及び前記第２通信線を介して通信し、
    　前記換気装置は、
    　換気制御回路と、
    　前記第１通信線及び前記第２通信線を、前記換気制御回路を介さずに接続する接続部と
    をさらに有する、請求項１に記載の空気調和機。     The first cable includes a first communication line,
    The second cable includes a second communication line,
    The indoor unit and the outdoor unit communicate via the first communication line and the second communication line,
    The ventilator is
    a ventilation control circuit;
    2. The air conditioner according to claim 1, further comprising a connecting portion that connects said first communication line and said second communication line without passing through said ventilation control circuit.
  3. 　前記換気装置は、
    　前記室内機と通信する第３通信線が接続する第３接続端子をさらに有し、
    　前記換気装置は、前記第３通信線を介して前記室内機と通信する、請求項１又は２に記載の空気調和機。     The ventilator is
    further comprising a third connection terminal to which a third communication line communicating with the indoor unit is connected;
    The air conditioner according to claim 1 or 2, wherein said ventilator communicates with said indoor unit via said third communication line.
  4. 　前記第１ケーブルは、第１通信線を含み、
    　前記第２ケーブルは、第２通信線を含み、
    　前記換気装置は、換気制御回路をさらに有し、
    　前記室内機に設けられた室内制御回路と、前記室外機に設けられた室外制御回路は、前記第１通信線と、前記換気制御回路と、前記第２通信線と、を介して通信し、
    　前記室内制御回路と前記室外制御回路の間の通信経路上に、通信の信号強度を高める増幅器が設けられている、請求項１に記載の空気調和機。     The first cable includes a first communication line,
    The second cable includes a second communication line,
    The ventilator further comprises a ventilation control circuit,
    The indoor control circuit provided in the indoor unit and the outdoor control circuit provided in the outdoor unit communicate via the first communication line, the ventilation control circuit, and the second communication line,
    2. The air conditioner according to claim 1, wherein an amplifier for increasing signal strength of communication is provided on a communication path between said indoor control circuit and said outdoor control circuit.
  5. 　商用電源から給電される室内機と、室外機と、を備え、
    　前記室内機から第１ケーブルを介して換気装置に給電され、前記室内機から前記第１ケーブル及び第２ケーブルを介して前記室外機に給電される第１の給電方式と、前記室内機から第３ケーブルを介して前記室外機に給電される第２の給電方式と、を選択可能である、空気調和機。     Equipped with an indoor unit powered by a commercial power supply and an outdoor unit,
    A first power supply system in which power is supplied from the indoor unit to the ventilation device via the first cable and power is supplied from the indoor unit to the outdoor unit via the first cable and the second cable, and a second power supply system in which power is supplied from the indoor unit to the outdoor unit via the third cable. An air conditioner that can be selected.
  6. 　前記換気装置は、第１接続端子と第２接続端子を有し、
    　前記室内機は、室内機端子を有し、
    　前記室外機は、室外機端子を有し、
    　前記第１の給電方式では、前記室内機端子が前記第１ケーブルを介して前記第１接続端子に接続され、且つ、前記第２接続端子が前記第２ケーブルを介して前記室外機端子に接続され、
    　前記第２の給電方式では、前記室内機端子が前記第３ケーブルを介して前記室外機端子に接続される、請求項５に記載の空気調和機。     The ventilation device has a first connection terminal and a second connection terminal,
    The indoor unit has an indoor unit terminal,
    The outdoor unit has an outdoor unit terminal,
    In the first power supply method, the indoor unit terminal is connected to the first connection terminal via the first cable, and the second connection terminal is connected to the outdoor unit terminal via the second cable,
    The air conditioner according to claim 5, wherein in the second power supply method, the indoor unit terminal is connected to the outdoor unit terminal via the third cable.
  7. 　商用電源から給電される室内機と、
    　換気装置と
    を備え、
    　前記室内機と前記換気装置は、電源線を含むケーブルで接続され、かつ前記ケーブルとは別に設けられた通信線を介して接続される、空気調和機。     an indoor unit powered by a commercial power supply;
    a ventilation device,
    The air conditioner, wherein the indoor unit and the ventilator are connected by a cable including a power line, and are connected via a communication line provided separately from the cable.
  8. 　前記室内機は、リモコン通信部をさらに備え、
    　前記換気装置は、前記リモコン通信部が受信した情報を、前記通信線を介して受信し、情報に従い、換気に係る制御を行う換気制御回路をさらに備える、請求項７に記載の空気調和機。     The indoor unit further includes a remote control communication unit,
    8. The air conditioner according to claim 7, wherein said ventilator further comprises a ventilation control circuit that receives information received by said remote control communication unit via said communication line and performs control related to ventilation according to the information.
  9. 　換気装置であって、
    　第１ケーブルが接続する第１接続端子と、
    　第２ケーブルが接続する第２接続端子と、
    を備え、
    　前記換気装置は、商用電源から給電される室内機から前記第１ケーブルを介して給電され、
    　室外機は、前記第１ケーブル及び前記第２ケーブルを介して前記室内機から給電される、換気装置。     a ventilation device,
    a first connection terminal to which the first cable connects;
    a second connection terminal to which the second cable connects;
    with
    The ventilation device is powered via the first cable from an indoor unit powered by a commercial power supply,
    The ventilation device, wherein the outdoor unit is supplied with power from the indoor unit via the first cable and the second cable.
  10. 　前記第１ケーブルは、第１通信線を含み、
    　前記第２ケーブルは、第２通信線を含み、
    　前記室内機と前記室外機は、前記第１通信線及び前記第２通信線を介して通信し、
    　前記換気装置は、
    　換気制御回路と、
    　前記第１通信線及び前記第２通信線を、前記換気制御回路を介さずに接続する接続部と
    をさらに備える、請求項９に記載の換気装置。     The first cable includes a first communication line,
    The second cable includes a second communication line,
    The indoor unit and the outdoor unit communicate via the first communication line and the second communication line,
    The ventilator is
    a ventilation control circuit;
    10. The ventilator according to claim 9, further comprising a connection section that connects the first communication line and the second communication line without passing through the ventilation control circuit.
  11. 　前記室内機と通信する第３通信線が接続する第３接続端子をさらに備え、
    　前記換気装置は、前記第３通信線を介して前記室内機と通信する、請求項９又は１０に記載の換気装置。     further comprising a third connection terminal to which a third communication line that communicates with the indoor unit is connected,
    The ventilation device according to claim 9 or 10, wherein the ventilation device communicates with the indoor unit via the third communication line.
  12. 　前記第１ケーブルは、第１通信線を含み、
    　前記第２ケーブルは、第２通信線を含み、
    　前記換気装置は、換気制御回路をさらに備え、
    　前記室内機に設けられた室内制御回路と、前記室外機に設けられた室外制御回路は、前記第１通信線と、前記換気制御回路と、前記第２通信線と、を介して通信し、
    　前記第１通信線と前記換気制御回路の間、または前記換気制御回路と前記第２通信線の間に、通信の信号強度を高める増幅器が設けられている、請求項９に記載の換気装置。     The first cable includes a first communication line,
    The second cable includes a second communication line,
    The ventilator further comprises a ventilation control circuit,
    The indoor control circuit provided in the indoor unit and the outdoor control circuit provided in the outdoor unit communicate via the first communication line, the ventilation control circuit, and the second communication line,
    10. The ventilator of claim 9, wherein an amplifier is provided between the first communication line and the ventilation control circuit or between the ventilation control circuit and the second communication line to increase the signal strength of the communication.
  13. 　商用電源から給電される室内機の背面又は側面に配置される換気装置であって、
    　前記換気装置と前記室内機は、電源線を含むケーブルで接続され、かつ前記ケーブルとは別に設けられた通信線で接続される、換気装置。     A ventilator placed on the back or side of an indoor unit powered by a commercial power supply,
    The ventilator and the indoor unit are connected by a cable including a power line and by a communication line provided separately from the cable.
PCT/JP2022/002250 2022-01-21 2022-01-21 Air conditioner and ventilation device WO2023139762A1 (en)

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JP2022540912A JP7135241B1 (en) 2022-01-21 2022-02-09 Air conditioners and ventilators
PCT/JP2022/005035 WO2023139798A1 (en) 2022-01-21 2022-02-09 Air conditioner and ventilation device
PCT/JP2022/032176 WO2023139828A1 (en) 2022-01-21 2022-08-26 Air conditioner and ventilation device
TW112101042A TW202331155A (en) 2022-01-21 2023-01-10 Air conditioner and ventilation device

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JPH02140551A (en) * 1988-11-21 1990-05-30 Matsushita Electric Ind Co Ltd Air conditioner and controller for ventilation fan
JPH0571788A (en) * 1991-09-12 1993-03-23 Mitsubishi Electric Corp Connection switch of external device
JP2002089923A (en) * 2000-09-13 2002-03-27 Toshiba Kyaria Kk Ventilation unit
JP2002250555A (en) * 2001-02-23 2002-09-06 Mitsubishi Heavy Ind Ltd Indoor unit and air conditioner
JP2008164184A (en) * 2006-12-27 2008-07-17 Matsushita Electric Ind Co Ltd Ventilation device with air conditioning function
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