EP1826499B1 - Air conditioner - Google Patents

Air conditioner Download PDF

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Publication number
EP1826499B1
EP1826499B1 EP05811491.9A EP05811491A EP1826499B1 EP 1826499 B1 EP1826499 B1 EP 1826499B1 EP 05811491 A EP05811491 A EP 05811491A EP 1826499 B1 EP1826499 B1 EP 1826499B1
Authority
EP
European Patent Office
Prior art keywords
ventilating
remote controller
nonvolatile memory
information
eeprom
Prior art date
Legal status (The legal status 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 status listed.)
Not-in-force
Application number
EP05811491.9A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1826499A4 (en
EP1826499A1 (en
Inventor
Akinori c/o DAIKIN INDUSTRIES LTD. NAKAI
Seiji c/o DAIKIN INDUSTRIES LTD. OKA
Hidekazu c/o DAIKIN INDUSTRIES LTD. KUDOU
Takashi Tokui
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daikin Industries Ltd
Original Assignee
Daikin Industries Ltd
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.)
Filing date
Publication date
Application filed by Daikin Industries Ltd filed Critical Daikin Industries Ltd
Publication of EP1826499A1 publication Critical patent/EP1826499A1/en
Publication of EP1826499A4 publication Critical patent/EP1826499A4/en
Application granted granted Critical
Publication of EP1826499B1 publication Critical patent/EP1826499B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0003—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station characterised by a split arrangement, wherein parts of the air-conditioning system, e.g. evaporator and condenser, are in separately located units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/0001—Control or safety arrangements for ventilation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/32—Responding to malfunctions or emergencies
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/49—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring ensuring correct operation, e.g. by trial operation or configuration checks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/65—Electronic processing for selecting an operating mode
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
    • F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/46—Improving electric energy efficiency or saving
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/56—Remote control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F6/00—Air-humidification, e.g. cooling by humidification

Definitions

  • the present invention relates to air conditioners, and in particular, to an air conditioner having a ventilating part that ventilates a room.
  • an air conditioner in which an indoor unit and an outdoor unit are connected with each other via a ventilation pipe, and one end of the ventilation pipe is connected to the inlet side and the outlet side of an air blower provided for the outdoor unit switchably by means of a damper ( JP 2003-176944 A ).
  • the ventilation pipe is connected to the inlet side of the air blower, and the air blower takes in indoor air via the ventilation pipe and the indoor unit and discharges the air to the outside of the room in a first switch position of the damper.
  • the ventilation pipe is connected to the outlet side of the air blower, and the air blower supplies the outdoor air to the inside of the room via the ventilation pipe and the indoor unit.
  • the air conditioner also includes a remote controller that receives a command of an operating state from an operator and transmits a signal corresponding to the command to the indoor unit, and a control part that controls the operating state of the air conditioner in accordance with the signal from the remote controller.
  • a remote controller that receives a command of an operating state from an operator and transmits a signal corresponding to the command to the indoor unit
  • a control part that controls the operating state of the air conditioner in accordance with the signal from the remote controller.
  • the conventional air conditioner enters a stop state even if the power failure is recovered and sometimes fails in returning to the ventilating operation before the power failure.
  • the remote controller is set back to its initial state, and a signal of the initial state is transmitted to the indoor unit, sometimes stopping the air conditioner.
  • EP 0837 289 A2 is concerned with an air conditioner and JP 2001 099477A is concerned with a ventilating fan.
  • the operation of the ventilating part is controlled to the operating state by the control part at the present time of operation on the basis of the operation information that is the operation information stored in the first nonvolatile memory and represents the operating state.
  • the ventilating part by controlling the ventilating part so that the operating state becomes identical to the operating state at the previous time of operation even when the ventilating operation stops due to, for example, power failure, the ventilating operation can be resumed at the present time of operation after recovery from the power failure. Therefore, the disadvantage that the ventilating operation stops though no command for stopping the ventilating operation has been received as in the conventional case can be prevented.
  • the air conditioner further comprises:
  • the command signal is transmitted from the transmitting part of the remote controller on the basis of the input to the remote controller by the operator.
  • the command signal is received by the receiving part of the indoor unit, and the ventilating part is controlled to the operating state corresponding to the command signal.
  • the operation information signal that represents the operation information stored in the first nonvolatile memory of the indoor unit is transmitted by the transmitting part of the indoor unit.
  • the operation information signal is received by the receiving part of the remote controller. Therefore, since the wireless remote controller can obtain the information identical to the operation information stored in the first nonvolatile memory of the indoor unit even when the operating state is set back to the initial state due to, for example, replacement of the battery of the remote controller, the operation information can be prevented from differing between the remote controller and the indoor unit. Therefore, the disadvantage that the command signal of the initial state is transmitted from the remote controller set back to the initial state to the indoor unit and the operation of the ventilating part stops though no command of stopping the ventilating operation is inputted to the remote controller can be prevented.
  • the air conditioner further comprises:
  • the operation information of the ventilating part at the previous time of operation is stored in the second nonvolatile memory of the outdoor unit. Therefore, the operation information of the ventilating part can be backed up in preparation for the vanishment of the operation information in the first nonvolatile memory due to, for example, the failure or replacement of the indoor unit.
  • the remote controller comprises:
  • the operation information of the ventilating part at the previous time of operation is stored in the third nonvolatile memory of the remote controller.
  • the operation information signal that represents the operation information stored in the third nonvolatile memory is transmitted to the indoor unit by the transmitting part.
  • the control part controls the operation of the ventilating part on a basis of the stored operation information so that the operating state becomes identical to the operating state at the previous time of operation.
  • the operation information stored in the first nonvolatile memory, the second nonvolatile memory or the third nonvolatile memory is referred to.
  • the operation of the ventilating part is controlled so as to enter the operating state identical to the operating state at the previous time of operation on the basis of the stored operation information.
  • control part may control the operation of the ventilating part at the present time of operation so as to enter the operating state identical to at least part of the operating state at the previous time of operation.
  • the air conditioner of the present invention includes the ventilating part that ventilates the room, the first nonvolatile memory that stores the operation information representing the operating state of the ventilating part at the previous time of operation, and the control part that controls the operation of the ventilating part on the basis of the operation information stored in the first nonvolatile memory at the present time of operation. Therefore, even when the ventilating operation stops due to, for example, power failure, the ventilating operation can be resumed at the present time of operation after recovery from the power failure. Therefore, the disadvantage that the ventilating operation stops after recovery from power failure as in the conventional case can be prevented.
  • FIG. 1 is a schematic view showing an air conditioner according to a first embodiment of the present invention.
  • the air conditioner includes an indoor unit 1 placed on a wall surface or the like of a room, and an outdoor unit 2 placed outside the room, and the indoor unit 1 and the outdoor unit 2 are connected with each other via a refrigerant piping 5, a ventilation pipe 6 and a connection wiring 8.
  • the indoor unit 1 has an indoor heat exchanger (not shown) to which a refrigerant is supplied from the outdoor unit 2 via the refrigerant piping 5 and a crossflow fan that guides wind to the indoor heat exchanger. Moreover, an opening that communicates with the ventilation pipe 6 is provided on a wind passage generated by the crossflow fan, forming a structure in which outdoor air is supplied to the inside of a room and the indoor air is discharged to the outside of the room via the opening.
  • the indoor unit 1 has an infrared ray transmitting and receiving part 13 that transmits and receives an infrared signal between the part and a wireless remote controller 3 as a remote controller described later.
  • the infrared ray transmitting and receiving part 13 receives command signals for commanding the operating states of an operating mode, a preset temperature, a preset air volume, a wind direction and so on from the wireless remote controller 3 and transmits an operation information signal that represents the operating state of the air conditioner to the wireless remote controller 3.
  • the infrared ray transmitting and receiving part 13 functions as a receiving part and a transmitting part.
  • the wireless remote controller 3 has an input part to which the operating states of the preset temperature, preset air volume, wind direction and so on are commanded and inputted by an operator in the room.
  • the wireless remote controller 3 also has an infrared ray transmitting and receiving part 31 that transmits and receives an infrared signal between the part and the indoor unit 1 to transmit a command signal corresponding to the input to the input part to the indoor unit 1 and receive an operation information signal concerning the operation information from the indoor unit 1.
  • the infrared ray transmitting and receiving part 31 functions as a receiving part and a transmitting part.
  • the indoor unit 1 further includes a first EEPROM (Electrically Erasable Programmable Read-Only Memory) 11 as a first nonvolatile memory that stores the operation information representing the operating state of the air conditioner at the present time of operation.
  • EEPROM Electrically Erasable Programmable Read-Only Memory
  • the indoor unit 1 further includes an information communicating part that carries out information communication between the unit and the outdoor unit 2 to transmit the command signal received from the wireless remote controller 3 to the outdoor unit 2.
  • the information communicating part transmits an operation information signal that represents the operation information (information identical to the information to be stored in the first EEPROM 11) at the present time of operation to the outdoor unit 2 and receives the operation information signal concerning the air conditioner at the previous time of operation from the outdoor unit 2.
  • the outdoor unit 2 includes an outdoor unit 21 and a humidifying unit 22.
  • a compressor that compresses a refrigerant, an expander that reduces the pressure by adiabatically expanding the refrigerant, an outdoor heat exchanger that exchanges heat between the refrigerant and outdoor air and a four-way changeover valve for changeover between cooling operation and heating operation by changing the direction of flow of the refrigerant are housed in the outdoor unit 21.
  • electrical components are housed in the outdoor unit 21, and the electrical components include a power circuit of the air conditioner and a control part 7 constructed of a CPU.
  • the CPU reads a control program stored in a ROM and executes control of the air conditioner.
  • the refrigerant piping 5 is connected to the outdoor unit 21 and supplied with the refrigerant of prescribed temperature and pressure by changeover control of the four-way changeover valve and capacity control of the compressor.
  • a humidifying rotor formed of a moisture adsorbent material such as zeolite, an air blower to which the humidifying rotor is selectively connected to the inlet side, and a connection damper that connects the ventilation pipe 6 to the inlet side or the outlet side of the air blower in a changeover manner are housed in the humidifying unit 22 of the outdoor unit 2.
  • the ventilation pipe 6 is connected to the inlet side of the air blower, and the air blower takes in the indoor air via the ventilation pipe 6 and the indoor unit 1 and discharges the air to the outside of the room.
  • the ventilation pipe 6 is connected to the outlet side of the air blower, and the air blower supplies the outdoor air humidified via the humidifying rotor or the outdoor air that does not pass through the humidifying rotor into the room via the ventilation pipe 6 and the indoor unit 1.
  • the indoor air ventilating operation is thus performed by discharging the indoor air to the outside of the room via the indoor unit 1, the ventilation pipe 6 and the outdoor unit 2 or supplying the outdoor air into the room. That is, a ventilating part is constructed of an opening formed in the ventilation flue of the indoor unit, the ventilation pipe 6 that communicates with the opening, the air blower connected to the ventilation pipe 6 and the connection damper that switches the connection of the ventilation pipe 6 to the air blower.
  • the outdoor unit 2 further includes an information communicating part that carries out information communication between the unit and the indoor unit 1 to receive the command signal, which has been transmitted from the wireless remote controller 3 and received by the transmitting and receiving part 13 of the indoor unit 1, from the information communicating part of the indoor unit 1.
  • a second EEPROM 23 that stores the operation information at the present time of operation that the information communicating part has received from the indoor unit 1 is further provided.
  • the control part 7 provided for the electrical components in the outdoor unit 21 carries out capacity control and start/stop of the compressor, changeover of the four-way changeover valve, capacity control and start/stop of the air blower and changeover of the connection damper on the basis of the command signal from the indoor unit 1. Moreover, the control part 7 controls storage and read from and to the first EEPROM 11, transmission and reception to and from the wireless remote controller 3 and storage and read from and to the second EEPROM 23 regarding the operation information of the air conditioner.
  • the ventilating operation by the air conditioner of the above construction is described with reference to the flow chart of FIG. 2 .
  • the flow chart shows the processing executed by the control part 7.
  • step S1 power of the air conditioner is turned on to start up the air conditioner.
  • the control part 7 is started up by turning on the power and determines whether or not the command signal of the contents to turn on the ventilating operation has been received from the wireless remote controller 3 (step S2).
  • step S3 information that represents the on-state of the ventilating operation is stored into the first EEPROM 11 of the indoor unit 1 (step S3).
  • step S4 information that represents the on-state of the ventilating operation is stored into the second EEPROM 23 of the outdoor unit 2 (step S4).
  • step S5 it is determined whether the command signal from the wireless remote controller 3 has the contents representing the on-state of the ventilating operation or the contents representing the off-state of the ventilating operation.
  • step S7 the information stored in the first EEPROM 11 of the indoor unit 1 is read to determine whether or not the ventilating operation has been on at the previous time of operation.
  • the program flow proceeds to the step S5.
  • the information stored in the first EEPROM 11 is the information of the off-state of the ventilating operation in the step S7
  • the information stored in the second EEPROM 23 is read to determine whether or not the ventilating operation has been on at the previous time of operation (step S10).
  • information that represents the on-state of the ventilating operation is stored into the first EEPROM 11 (step S11).
  • operation information that represents the on-state of the ventilating operation is transmitted to the wireless remote controller 3 (step S12). Thereafter, the program flow proceeds to the step S5.
  • step S6 the ventilating operation is executed (step S6). That is, the connection damper of the outdoor unit 2 is switched to connect the ventilation pipe 6 to the inlet side or the outlet side of the air blower, and the air blower is started up.
  • step S8 it is determined whether or not the information stored in the first EEPROM 11 represents the on-state of the ventilating operation.
  • the program flow proceeds to the step S6 to execute the ventilating operation.
  • step S9 When the information stored in the first EEPROM 11 is the off-state of the ventilating operation in the step S8, the ventilating operation is brought into a stop state (step S9).
  • step S6 and step S9 the program flow returns to step S2 to determine whether or not the command signal of the on-state of the ventilating operation has been received from the wireless remote controller 3.
  • the ventilating operation is performed in accordance with the command signal from the remote controller. Even in a case where the command to perform the ventilating operation is not inputted to the remote controller by the operator, the ventilating operation can be resumed on the basis of the information of the on-state of the operation stored in the first EEPROM 11 or the second EEPROM 23 when the ventilating operation has been performed at the previous time of operation.
  • the ventilating operation identical to the operation at the previous time of operation before the power failure can be resumed at the present time of operation after recovery from the power failure even if the operator does not input the turning-on of the ventilating operation. Therefore, the conventional disadvantage that the ventilating operation cannot be resumed after recovery from power failure and brought into the stop state though no command for stopping the ventilating operation has been received can effectively be prevented.
  • the setting state of the air volume, wind direction and so on other than the operating state may be set back, at the present time of operation, to the initial state or to the state at the previous time of operation by storing also the setting state of the previous time of operation in the first EEPROM 11.
  • the operation information can be prevented from differing between the indoor unit 1 and the wireless remote controller 3 even when the wireless remote controller 3 is set back to the initial state due to, for example, replacement of battery. Therefore, the disadvantage that the command signal in the initial state is transmitted to the indoor unit 1 and the operation of the ventilating part stops though no command for stopping the ventilating operation is inputted by the operator to the wireless remote controller 3 can be prevented.
  • the ventilating operation can be continued on the basis of the operation information stored in the second EEPROM 23 even if the operation information of the first EEPROM 11 vanishes due to, for example, the trouble or replacement of the indoor unit 1.
  • the air conditioner of the present embodiment can continue the execution of the ventilating operation under the power on condition until receiving the command for turning off the ventilating operation by the operator, even when power failure, trouble of the indoor unit 1, initialization of the wireless remote controller 3 or the like occurs.
  • the air conditioner can function as a ventilator prescribed in the provision of Building Standard Law.
  • FIG. 3 is a schematic view showing an air conditioner according to another embodiment of the present invention.
  • an indoor unit 1 and an outdoor unit 2 are connected with each other via a refrigerant piping 5, a ventilation pipe 6 and a connection wiring 8 in the air conditioner of the second embodiment as in the air conditioner of the first embodiment.
  • operation information at the present time of operation is stored into a third EEPROM 33 in addition to the first EEPROM 11 and the second EEPROM 23.
  • the wireless remote controller 3 has the third EEPROM 33. Operation information received from the indoor unit 1 is written into the third EEPROM 33, and operation information to be transmitted to the indoor unit 1 is read from the third EEPROM 33.
  • the wireless remote controller 3 transmits the operation information read from the third EEPROM 33 to the indoor unit 1 in addition to the command signal corresponding to the input to the input part by the operator by means of an infrared ray transmitting and receiving part 31 that transmits and receives an infrared signal between the controller and the indoor unit 1.
  • the operation information to be written into the third EEPROM 33 is received from the indoor unit 1 by the infrared ray transmitting and receiving part 31.
  • the wireless remote controller 3 further includes an input part for inputting by the operator in the room as in the case of the wireless remote controller 3 of the first embodiment.
  • the infrared ray transmitting and receiving part 13 of the indoor unit 1 receives the operation information signal that represents the operation information stored in the third EEPROM 33 from the wireless remote controller 3 in addition to the command signal that issues commands of the operating mode, preset temperature, preset air volume, wind direction and so on, or the operating states of the air conditioner. Moreover, the infrared ray transmitting and receiving part 13 of the indoor unit 1 transmits an operation information signal, which represents the operation information of the air conditioner that should be stored in the third EEPROM 33, to the wireless remote controller 3.
  • FIGS. 4A and 4B are flow charts showing the processing executed in the control part 7 of the air conditioner of the present embodiment.
  • the ventilating operation of the air conditioner of the present embodiment is described with reference to the flow charts of FIGS. 4A and 4B .
  • the power of the air conditioner is turned on to start up the air conditioner (step S1) and start up the control part 7, and it is determined whether or not the command signal of the contents of turning on the ventilating operation has been received from the wireless remote controller 3 (step S2).
  • step S2 information that represents the on-state of the ventilating operation is stored into the first EEPROM 11 of the indoor unit 1 (step S3).
  • step S4 information that represents the on-state of the ventilating operation is stored into the second EEPROM 23 of the outdoor unit 2 (step S4).
  • information that represents the on-state of the ventilating operation is transmitted to the wireless remote controller 3, and the information that represents the on-state of the ventilating operation is stored into the third EEPROM 33 of the wireless remote controller (step S5).
  • step S6 it is determined whether the command signal from the wireless remote controller 3 has the contents representing the on-state of the ventilating operation or the contents representing the off-state of the ventilating operation.
  • step S8 the information stored in the first EEPROM 11 of the indoor unit 1 is read to determine whether or not the ventilating operation has been on at the previous time of operation (step S8).
  • the program flow proceeds to the step S6.
  • the information stored in the first EEPROM 11 is the information of the off-state of the ventilating operation in the step S8
  • the information stored in the second EEPROM 23 is read to determine whether or not the ventilating operation has been on at the previous time of operation (step S11).
  • information that represents the on-state of the ventilating operation is stored into the first EEPROM 11 (step S12).
  • operation information that represents the on-state of the ventilating operation is transmitted to the wireless remote controller 3, information that represents the on-state of the ventilating operation is stored into the third EEPROM 33 of the wireless remote controller (step S13).
  • the program flow proceeds to the step S6.
  • the wireless remote controller 3 is commanded to read the information stored in the third EEPROM 33 and transmit the information to the indoor unit, and it is determined whether or not the ventilating operation has been on at the previous time of operation on the basis of the information received by the indoor unit (step S14).
  • the information stored in the third EEPROM 33 is the information of the on-state of the ventilating operation and it is determined that the ventilating operation has been on at the previous time of operation
  • the information that represents the on-state of the ventilating operation is stored into the first EEPROM 11 (step S15).
  • the information that represents the on-state of the ventilating operation is stored into the second EEPROM 23 of the outdoor unit 2 (step S16). Thereafter, the program flow proceeds to the step S6.
  • step S7 When the command signal from the wireless remote controller 3 has the contents that represent the on-state of the ventilating operation in the step S6, the ventilating operation is executed (step S7).
  • step S9 When the command signal from the wireless remote controller 3 has the contents that represent the off-state of the ventilating operation in step S6, it is determined whether or not the information stored in the first EEPROM 11 represents the on-state of the ventilating operation (step S9). When the information stored in the first EEPROM 11 represents the on-state of the ventilating operation, the program flow returns to the step S7 to execute the ventilating operation.
  • step S10 When the information stored in the first EEPROM 11 is the off-state of the ventilating operation in the step S9, the ventilating operation is brought into a stop state (step S10)
  • step S7 and step S10 the program flow returns to step S2 to determine whether or not the command signal of the on-state of the ventilating operation has been received from the wireless remote controller 3.
  • the ventilating operation is performed in accordance with the command signal from the remote controller. Even in a case where the command to perform the ventilating operation is not inputted to the remote controller by the operator, the ventilating operation can be resumed on the basis of the information of the on-state of the operation stored in the first EEPROM 11, the second EEPROM 23 or the third EEPROM 33 when the ventilating operation has been performed at the previous time of operation.
  • the air conditioner of the present embodiment can resume the ventilating operation similar to that at the previous time of operation at the present time of operation regardless of an input by the operator.
  • step S5 it is acceptable to store the information that represents the on-state of the ventilating operation into the third EEPROM 33 when the input of turning on the ventilating operation is made by the operator to the wireless remote controller 3. In this case, the step S5 may be removed.
  • the ventilating operation may immediately be executed by reading the information of the on-state of the ventilating operation stored in the second EEPROM 23 or the third EEPROM 33.
  • the first EEPROM 11 is provided as the first nonvolatile memory for the indoor unit 1, the first nonvolatile memory needs not be provided for the indoor unit 1 but allowed to be provided for the outdoor unit 2 or the wireless remote controller 3. For example, it is acceptable to remove the first EEPROM 11 of the indoor unit 1 and make the second EEPROM 23 of the outdoor unit 2 or the third EEPROM 33 of the wireless remote controller 3 function as the first EEPROM 11.
  • ventilation means at least one of supply of outdoor air into a room and discharge of indoor air to the outside of the room.
  • supply of outdoor air into a room and discharge of indoor air to the outside of the room may alternately be performed on the basis of the input condition by the operator or another condition.
  • the information of the on-state and the off-state of the ventilating operation at the previous time of operation is stored in the first, second and third EEPROM's 11, 23 and 33 in the first and second embodiments, it is acceptable to store the information of distinction between intake and discharge of air, air volume, wind direction, presence or absence of humidifying operation, preset temperature and so on of the ventilating operation besides the information of the on-state or the off-state of the ventilating operation.
  • the ventilation pipe 6 is connected to the humidifying unit 22 that has the humidifying rotor in the outdoor unit 2, the ventilation pipe 6 may be connected to an air blower unit that has no humidifying rotor.
  • the ventilating part may be constructed of a ventilation pipe of which one end communicates with the indoor unit and the other end is opened to the outside of the room and a fan that is provided for the indoor unit and discharges indoor air to the outside of the room or guides outdoor air to the inside of the room via the ventilation pipe.
  • the nonvolatile memory may be provided by a RAM or a magnetic recording device such as a hard disk besides EEPROM and is, in short, required to be a memory that can maintain the storage state even when the power is cut off.
  • the air conditioner is constituted by connecting the indoor unit 1 with the outdoor unit 2 via the ventilation pipe 6, the refrigerant piping 5 and the connection wiring 8, it is acceptable to integrally form the indoor unit 1 with the outdoor unit 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Human Computer Interaction (AREA)
  • Air Conditioning Control Device (AREA)
  • Ventilation (AREA)
EP05811491.9A 2004-11-30 2005-11-30 Air conditioner Not-in-force EP1826499B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2004345923 2004-11-30
JP2005326483A JP3861918B2 (ja) 2004-11-30 2005-11-10 空気調和機
PCT/JP2005/021989 WO2006059645A1 (ja) 2004-11-30 2005-11-30 空気調和機

Publications (3)

Publication Number Publication Date
EP1826499A1 EP1826499A1 (en) 2007-08-29
EP1826499A4 EP1826499A4 (en) 2010-11-24
EP1826499B1 true EP1826499B1 (en) 2013-12-25

Family

ID=36565078

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05811491.9A Not-in-force EP1826499B1 (en) 2004-11-30 2005-11-30 Air conditioner

Country Status (7)

Country Link
US (1) US20070277541A1 (ko)
EP (1) EP1826499B1 (ko)
JP (1) JP3861918B2 (ko)
KR (1) KR100896118B1 (ko)
AU (1) AU2005310611B2 (ko)
ES (1) ES2441355T3 (ko)
WO (1) WO2006059645A1 (ko)

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* Cited by examiner, † Cited by third party
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CN102287873A (zh) * 2011-06-23 2011-12-21 周良文 一种外置风机的空调
JP5787842B2 (ja) * 2012-08-09 2015-09-30 三菱電機株式会社 空調用リモートコントローラー、室内機、及び空気調和システム
JP6207958B2 (ja) * 2013-10-07 2017-10-04 サンデンホールディングス株式会社 車両用空気調和装置
KR102687980B1 (ko) * 2019-01-29 2024-07-25 코웨이 주식회사 다기능 수납 시스템의 강제종료 이후의 강제제습방법 및 이를 이용한 복구 시스템
CN111121156B (zh) * 2020-01-20 2021-06-04 青岛海信日立空调系统有限公司 一种多联空调机

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Also Published As

Publication number Publication date
ES2441355T3 (es) 2014-02-04
AU2005310611A1 (en) 2006-06-08
JP2006183991A (ja) 2006-07-13
EP1826499A4 (en) 2010-11-24
KR20070084633A (ko) 2007-08-24
WO2006059645A1 (ja) 2006-06-08
EP1826499A1 (en) 2007-08-29
KR100896118B1 (ko) 2009-05-07
JP3861918B2 (ja) 2006-12-27
US20070277541A1 (en) 2007-12-06
AU2005310611B2 (en) 2009-06-04

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