US20080209927A1 - Air Conditioner - Google Patents

Air Conditioner Download PDF

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Publication number
US20080209927A1
US20080209927A1 US11/659,697 US65969705A US2008209927A1 US 20080209927 A1 US20080209927 A1 US 20080209927A1 US 65969705 A US65969705 A US 65969705A US 2008209927 A1 US2008209927 A1 US 2008209927A1
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United States
Prior art keywords
electric power
amount
unit
outdoor unit
electric
Prior art date
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Abandoned
Application number
US11/659,697
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English (en)
Inventor
Kazuyuki Igarashi
Hirotaka Masui
Hidesuke Hayakawa
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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Filing date
Publication date
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Assigned to MITSUBISHI ELECTRIC CORPORATION reassignment MITSUBISHI ELECTRIC CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HAYAKAWA, HIDESUKE, IGARASHI, KAZUYUKI, MASUI, HIROTAKA
Publication of US20080209927A1 publication Critical patent/US20080209927A1/en
Abandoned legal-status Critical Current

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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
    • F24F11/30—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
    • F24F11/46—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
    • F24F11/52—Indication arrangements, e.g. displays
    • 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
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
    • 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
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/87—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units
    • F24F11/871—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units by controlling outdoor fans
    • 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
    • F24F11/88—Electrical aspects, e.g. circuits
    • 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
    • F24F11/47—Responding to energy costs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00—Control inputs relating to system states
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00—Control inputs relating to system states
    • F24F2140/60—Energy consumption
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/15—Power, e.g. by voltage or current

Definitions

  • the present invention relates to air conditioners in which the amount of consumed electric power is configured to be integrated in the side of an outdoor unit, based on signals transmitted from a Watt-hour meter.
  • the exclusive electric-power-amount counters which are relatively expensive, and take a relatively large area to be mounted, are needed to be used.
  • the outdoor unit of the air conditioner is generally placed take the room, and the electric power supplier and the outdoor-unit Watt-hour meter are placed close to the outdoor unit.
  • the electric-power-amount counter is mounted on a controller panel, etc. placed inside a room, a problem has occurred in which electrical lines wired from the electric-power-amount counters to the outdoor unit and the Watt-hour meter are lengthened.
  • a first objective of the present invention which is made to solve the above described problem, is to obtain an air conditioner in which the amount of consumed electric power can be integrated without using an exclusive electric-power-amount counter.
  • a second objective is to obtain an air conditioner in which a control line needed for measuring the amount of electric power can be shortened.
  • the outdoor unit includes a signal receiving means for receiving a signal related to the amount of electric power from a Watt-hour meter for measuring the amount of the electric power supplied to the outdoor unit and the indoor unit; and an electric-power-amount integration means for integrating the amount of the electric power based on the received signal related to the amount of the electric power.
  • the outdoor unit includes an outdoor-unit signal receiving means for receiving a signal related to the amount of electric power from an outdoor-unit Watt-hour meter for measuring the amount of the electric power supplied to the outdoor unit; an outdoor-unit electric-power-amount integration means for integrating the amount of the electric power of the outdoor unit based on the received signal related to the amount of the electric power; an indoor-unit signal receiving means for receiving a signal related to the amount of electric power from an indoor-unit Watt-hour meter for measuring the amount of the electric power supplied to the indoor unit; and an indoor-unit electric-power-amount integration means for integrating the amount of the electric power of the indoor unit based on the received signal related to the amount of the electric power by the indoor-unit signal receiving means.
  • the outdoor unit includes an all-indoor-units signal receiving means for receiving a signal related to the total amounts of electric power from a Watt-hour meter for measuring the total amounts of the electric power supplied to the outdoor unit and the plurality of indoor units; an all-indoor-units electric-power-amount integration means for integrating the total amounts of the electric power of the outdoor unit and all of the indoor units based on the received signal related to the total amounts of the electric power; an indoor-unit operation-information collection means for independently collecting operation information of each of the plurality of indoor units; and an electric-power-amount proportionally-dividing means for proportionally dividing, based on the independently collected operation information of each indoor unit, into the amount of electric power for each indoor unit, the integrated total amounts of the electric power of the outdoor unit and all of the indoor units.
  • an air conditioner further includes a centralized controller for operating and controlling the outdoor and indoor units, and for displaying the operational state of the outdoor and indoor units
  • the outdoor unit further includes a unit electric-power-amount calculation means for calculating, from the amount of the electric power integrated by the electric-power-amount integration means, the amount of electric power for each unit time, and a transmission means for transmitting, into centralized controller through a transmission line, the calculated amount of the electric power for each unit time.
  • the outdoor unit further includes a limited-value memory means for memorizing a limited value of consumed electric power for each unit time set in advance, and a control means for controlling the outdoor and indoor units so that the amount of the electric power received from the Watt-hour meter and integrated does not exceed the memorized limited value of the consumed electric power.
  • the outdoor unit further includes an electric-power shut-down detection means for detecting shut-down of the electric power supplied to the outdoor unit; and an electric-power switching means for switching, when the shut-down of the electric power is detected, the electric power for the receiving means, from an ac/dc converter circuit into a self-maintenance battery.
  • the outdoor unit takes the signals related to the amounts of the electric power, consumed in the outdoor and indoor units, outputted from the Watt-hour meter also placed take the room, and integrates the amount of the electric power; therefore, it is effective that the amount of the consumed electric power can be measured without using any exclusive electric-power-amount counter for integrating the amount of electric power. Therefore, a large amount of expense for the electric-power-amount counter is unnecessary to be invested, and a space for mounting the electric-power-amount counter is also unnecessary to be secured.
  • the outdoor unit and the Watt-hour meter can be placed close to each other, the amount of the electric power can be integrated at the proximity of the Watt-hour meter; therefore, it is also effective that the control line for integrating the amount of electric power can be shortened.
  • FIG. 1 is a system configuration diagram illustrating the entire configuration of an air conditioner according to Embodiment 1 of the present invention
  • FIG. 2 is a block diagram illustrating the configuration of an outdoor unit according to Embodiment 1 of the present invention
  • FIG. 3 is a system configuration diagram illustrating the entire configuration of an air conditioner according to Embodiment 2 of the present invention.
  • FIG. 4 is a block diagram illustrating the configuration of an outdoor unit according to Embodiment 2 of the present invention.
  • FIG. 5 is a system configuration diagram illustrating the entire configuration of an air conditioner according to Embodiment 3 and Embodiment 4 of the present invention.
  • FIG. 6 is a block diagram illustrating the configuration of an outdoor unit according to Embodiment 3 and Embodiment 4 of the present invention.
  • FIG. 7 is a system configuration diagram illustrating the entire configuration of an air conditioner according to Embodiment 5 of the present invention.
  • FIG. 8 is a block diagram illustrating the configuration of an outdoor unit according to Embodiment 5 of the present invention.
  • FIG. 9 is a block diagram illustrating the configuration of an outdoor unit according to Embodiment 6 of the present invention.
  • FIG. 1 is a system configuration diagram illustrating the entire configuration of an air conditioner according to Embodiment 1 of the present invention
  • FIG. 2 is a block diagram illustrating the configuration of an outdoor unit according to Embodiment 1 of the present invention.
  • the air conditioner according to this embodiment is provided with an outdoor unit 1 and an indoor unit 2 .
  • Commercial electric power is supplied to these outdoor unit 1 and indoor unit 2 through a Watt-hour meter 3 , for measuring the amount of electric power, having a transmitter for transmitting pulse signals (for example, one pulse per 10 kW), and through an electric power line 4 .
  • the Watt-hour meter 3 and the outdoor unit 1 are communicatively connected to each other through a control line 5 .
  • the outdoor unit 1 and the indoor unit 2 are communicatively connected to a centralized controller 6 through a transmission line 7 .
  • the outdoor unit 1 is composed of a coolant circuit 8 including a sensor, an LEV (linear expansion valve), a heat exchanger, a compressor, and a fan; an inverter 9 for frequency controlling the rotation number of the compressor and the fan included in the coolant circuit 8 ; a Watt-hour meter connection circuit 10 connected through the Watt-hour meter 3 and the control line 5 ; and a controller 11 communicatively connected with the coolant circuit 8 , the inverter 9 , and the Watt-hour meter connection circuit 10 ; which are respectively conventional.
  • the controller 11 is configured of a microcomputer, etc.
  • the commercial electric power is supplied to the outdoor unit 1 and the indoor unit 2 through the Watt-hour meter 3 and the electric power line 4 .
  • the Watt-hour meter 3 measures the amount of the electric power supplied to the outdoor unit 1 and the indoor unit 2 , and transmits a pulse signal (an example of a signal related to the amount of the electric power according to the present invention) for each predetermined amount of the electric power (10 kW as described above) that has been measured.
  • the pulse signals from the Watt-hour meter 3 are transmitted through the control line 5 , and received by the Watt-hour meter connection circuit 10 (an example of a signal receiving means).
  • the Watt-hour meter connection circuit 10 transmits the received pulse signals to the controller 11 .
  • the controller 11 an example of an electric-power-amount integration means integrates the pulse signals received from the Watt-hour meter connection circuit 10 , and calculates the integrated amount of the electric power.
  • the Watt-hour meter connection circuit 10 provided in the outdoor unit 1 takes the pulse signals with respect to the amount of the electric power, used in the outdoor unit 1 and the indoor unit 2 , outputted from the Watt-hour meter 3 placed outside the room, and then, calculates and integrates the amount of the electric power. Therefore, without using the exclusive electric-power-amount counter represented in the conventional technology, the consumed electric power can be measured. Thereby, a large expense and a space for installing the electric-power-amount counter need not be prepared.
  • the outdoor unit 1 and the Watt-hour meter 3 are placed close to each other, the electric-power-amount integration becomes possible in the vicinity of the Watt-hour meter 3 ; consequently, the control line 5 for integrating the amount of the electric power can be shortened.
  • the outdoor unit 1 is configured to control the single Watt-hour meter 3 ; next, Embodiment 2 is explained in which a plurality of the Watt-hour meters 3 is controlled.
  • FIG. 3 is a system configuration diagram illustrating the entire configuration of an air conditioner in such case
  • FIG. 4 is a block diagram illustrating the configuration of an outdoor unit according to Embodiment 2 of the present invention.
  • the air conditioner according to this embodiment has a single outdoor unit 12 and double indoor units 2 a and 2 b .
  • Electric power is supplied to the outdoor unit 12 through an electric power line 4 a wired across a Watt-hour meter 3 a having a transmitter, and to the indoor units 2 a and 2 b through an electric power line 4 b wired across a Watt-hour meter 3 b having a transmitter.
  • These Watt-hour meters 3 a and 3 b each is connected to the outdoor unit 12 through control lines 5 a and 5 b , respectively.
  • the outdoor unit 12 and the indoor units 2 a and 2 b are connected to the centralized controller 6 through the transmission line 7 .
  • the outdoor unit 12 is composed of the coolant circuit 8 , inverter 9 , a Watt-hour meter connection circuit 10 a connected to the Watt-hour meters 3 a through the control line 5 a , a Watt-hour meter connection circuit 10 b connected to the Watt-hour meters 3 b through the control line 5 b , and the controller 13 communicatively connected to the coolant circuit 8 , inverter 9 , and the Watt-hour meter connection circuit 10 a and 10 b , as respectively described in Embodiment 1.
  • the commercial electric power is supplied to the outdoor unit 12 across the Watt-hour meter 3 a through the electric power line 4 a .
  • the commercial electric power is supplied to the indoor units 2 a and 2 b across the Watt-hour meter 3 b through the electric power line 4 b . Therefore, the consumed electric power of the outdoor unit 12 and the indoor units 2 a and 2 b can be independently measured by the Watt-hour meters 3 a and 3 b , respectively.
  • the Watt-hour meter 3 a (an example of an outdoor-unit Watt-hour meter) measures the amount of the electric power supplied to the outdoor unit 12 , and transmits pulse signals related to the amount of the electric power, to the outdoor unit 12 through the control line 5 a .
  • the Watt-hour meter connection circuit 10 a (an example of an outdoor-unit signal receiving means) provided in the outdoor unit 12 receives the pulse signals from the Watt-hour meter 3 a , and transmits them to the controller 13 .
  • the controller 13 (an example of an outdoor-unit electric-power-amount integration means) calculates the integrated amount of the electric power of the outdoor unit 12 based on the pulse signals transmitted from the Watt-hour meter connection circuit 10 a .
  • the Watt-hour meter 3 b (an example of an indoor-unit Watt-hour meter) measures the amount of the electric power supplied to the indoor units 2 a and 2 b , and transmits the pulse signals related to the amount of the electric power, to the outdoor unit 12 through the control line 5 b .
  • the Watt-hour meter connection circuit 10 b (an example of an indoor-unit signal receiving means) provided in the outdoor unit 12 receives the pulse signals from the Watt-hour meter 3 b , and transmits them to the controller 13 .
  • the controller 13 (an example of an indoor-unit electric-power-amount integration means) calculates the integrated amount of the electric power of the indoor units 2 a and 2 b based on the pulse signals transmitted from the Watt-hour meter connection circuit 10 b.
  • the Watt-hour meter connection circuit 10 a used for the outdoor unit and the Watt-hour meter connection circuit 10 b used for the indoor unit are provided in the outdoor unit 12 ; therefore, without using the exclusive electric-power-amount counter, each consumed amount of the electric power of the outdoor unit 12 and the indoor units 2 a and 2 b can be independently integrated.
  • Embodiment 3 is explained in which the amount of electric power is proportionally divided from the operational data of the indoor unit.
  • FIG. 5 is a system configuration diagram illustrating the entire configuration of an air conditioner in such case
  • FIG. 6 is a block diagram illustrating the configuration of an outdoor unit according to Embodiment 3 of the present invention.
  • the air conditioner has a single outdoor unit 14 and the double indoor units 2 a and 2 b .
  • Commercial electric power is supplied to the outdoor unit 14 and the indoor units 2 a and 2 b through the electric power line 4 wired across the Watt-hour meter 3 having a transmitter.
  • the Watt-hour meter 3 and the outdoor unit 14 are communicatively connected to each other through the control line 5 .
  • the outdoor unit 14 and the indoor units 2 a and 2 b are communicatively connected to the centralized controller 6 through the transmission line 7 .
  • the outdoor unit 14 is composed of the coolant circuit 8 , inverter 9 , a Watt-hour meter connection circuit 10 connected to the Watt-hour meters 3 through the control line 5 , and a controller 15 communicatively connected to the coolant circuit 8 , inverter 9 , and the Watt-hour meter connection circuit 10 , as respectively described in Embodiment 1.
  • the controller 15 is composed of a central processing unit 16 including a microcomputer; a communication circuit 17 for performing communication; an input/output circuit 18 for controlling the Watt-hour meter connection circuit 10 , inverter 9 , and the coolant circuit 8 ; and a memory 19 for memorizing a control state, etc.
  • the Watt-hour meter 3 measures the total amounts of electric power supplied to all of the outdoor unit 1 and the indoor units 2 a and 2 b , and transmits to the outdoor unit 14 the pulse signals related to the total amounts of the electric power.
  • the Watt-hour meter connection circuit 10 (an example of an all-indoor-units signal receiving means) provided in the outdoor unit 14 receives the pulse signals from the Watt-hour meter 3 , and transmits them to the controller 15 .
  • the central processing unit 16 (an example of an all-indoor-units electric-power-amount integration means) included in the controller 15 , based on the pulse signals transmitted from the Watt-hour meter connection circuit 10 , integrates all of the total amounts of the electric power consumed by the outdoor unit 14 and the indoor units 2 a and 2 b , and stores the result into the memory 19 . Moreover, the central processing unit 16 (an example of an indoor-unit operation-information collection means) independently collects operation information of the indoor units 2 a and 2 b through the transmission line 7 and the communication circuit 17 , and stores it into the memory 19 .
  • the central processing unit 16 (an example of an electric-power-amount proportionally dividing means), based on the independent operation information, memorized in the memory 19 , of the indoor units 2 a and 2 b , proportionally divides, into the integrated amount of the electric power for each indoor units 2 a and 2 b , all of the integrated total amounts of the electric power consumed by the outdoor unit 14 and the indoor units 2 a and 2 b.
  • the indoor unit 2 a whose power consumption per unit time is 2.8 kW and the indoor unit 2 b whose power consumption per unit time is 5.6 kW were simultaneously operated, and the power consumption value taken from the Watt-hour meter 3 during the operation was 3 kW.
  • the power of 3 kW is proportionally divided by the consumption electric power ratio of 1:2 for the indoor units 2 a and 2 b ; that is, the consumption-electric-power values are proportionally divided so that the indoor unit 2 a and the outdoor unit 14 corresponding to the indoor unit 2 a each is set at 1 kW, and meanwhile, the indoor unit 2 b and the outdoor unit 14 corresponding to the indoor unit 2 b each is set at 2 kW.
  • the outdoor unit 14 can collect the operation information of the indoor units 2 a and 2 b , and can proportionally divide the consumed amount of the electric power, corresponding to the types of the indoor units 2 a and 2 b , or the collected operation information, etc.
  • Embodiment 4 is explained in which the integrated amount of the electric power is displayed by the centralized controller.
  • FIG. 5 is a system configuration diagram illustrating the entire configuration of an air conditioner in such case
  • FIG. 6 is a block diagram illustrating the configuration of an outdoor unit according to Embodiment 4 of the present invention.
  • the outdoor unit 14 and the indoor units 2 a and 2 b are communicatively connected to each other through the control line 5 .
  • the outdoor unit 14 and the indoor units 2 a and 2 b are communicatively connected to the centralized controller 6 through the transmission line 7 (a transmission path).
  • the centralized controller 6 (an example of a centralized controller) operationally controls the outdoor unit 14 and the indoor units 2 a and 2 b , and the operational states of the outdoor unit 14 and the indoor units 2 a and 2 b are configured to be displayed on a display provided in the controller.
  • the outdoor unit 14 is composed of the coolant circuit 8 , inverter 9 , the Watt-hour meter connection circuit 10 connected to the Watt-hour meter 3 through the control line 5 , and the controller 15 communicatively connected to the coolant circuit 8 , the inverter 9 , and the Watt-hour meter connection circuit 10 .
  • the controller 15 is composed of the central processing unit 16 including the microcomputer; the communication circuit 17 for performing communication; the input/output circuit 18 for controlling the Watt-hour meter connection circuit 10 , inverter 9 , and the coolant circuit 8 ; and the memory 19 for memorizing a control state, etc.
  • the pulse signals related to the amount of the electric power measured by the Watt-hour meter 3 are taken by the Watt-hour meter connection circuit 10 of the outdoor unit 14 through the control line 5 , and the amount of the electric power is integrated by the central processing unit 16 included in the controller 15 of the outdoor unit 14 .
  • the central processing unit 16 calculates the amount of the electric power for each unit time taken from the integrated amount of electric power and the time of a timer.
  • the communication circuit 17 (an example of a transmission means) transmits into the centralized controller 6 , through the transmission line 7 , the calculated amount of the electric power for each unit time.
  • the centralized controller 6 displays on a controller display (not illustrated in the figure) the received amount of the electric power for each unit time.
  • the controller 15 of the outdoor unit 14 is connected to the centralized controller 6 through the transmission line 7 and the transmission line 7 ; therefore, the outdoor unit 14 , by transmitting into the centralized controller 6 the calculated electric-power amount per unit time, can display it or convert it into the electric power cost.
  • Embodiment 5 In the above embodiments 1, 2, 3, and 4, consumed electric power is measured, proportionally divided, and displayed by the centralized controller; next, Embodiment 5 is explained in which an air conditioner is controlled based on the measured value of the consumed electric power so that the amount of the consumed electric power does not exceed an electric-power limited value.
  • FIG. 7 is a system configuration diagram illustrating the entire configuration of the air conditioner in such case
  • FIG. 8 is a block diagram illustrating the configuration of an outdoor unit according to Embodiment 5 of the present invention.
  • the outdoor unit 20 is composed of the coolant circuit 8 , inverter 9 , the Watt-hour meter connection circuit 10 connected to the Watt-hour meter 3 through the control line 5 , and a controller 21 communicatively connected to the coolant circuit 8 , the inverter 9 , and the Watt-hour meter connection circuit 10 .
  • the controller 21 is composed of a central processing unit 22 including a microcomputer, etc.; the communication circuit 17 for performing communication; the input/output circuit 18 for controlling the Watt-hour meter connection circuit 10 , inverter 9 , and the coolant circuit 8 ; the memory 19 for memorizing a control state, etc.; and a timer circuit 23 for measuring a time.
  • Such setting contents (the maximum value of the consumed electric power per hour in the time zone from 1:00 pm to 3:00 pm is 6 kW) are memorized in the memory 19 (an example of a limited-value memory means).
  • the controller 21 of the outdoor unit 20 receives, through the Watt-hour meter connection circuit 10 , pulse signals, with respect to the amount of the electric power consumed in the outdoor unit 20 and the indoor units 2 a and 2 b , measured by the Watt-hour meter 3 .
  • the controller 21 (an example of a control means) determines that the amount of the consumed electric power measured by the Watt-hour meter 3 is going to exceed the limited value soon, the controller 21 controls the inverter 9 , etc., based on the consumed electric power measured by the Watt-hour meter 3 , the limited value (6 kW) of the consumed-electric-power amount memorized in the memory 19 , and the time measured by the timer circuit 23 ; thereby, the electric power consumed is decreased.
  • the controller 21 controls so that the operation is performed in which the ability of the inverter 9 is, for example, reduced to 50% during the remaining time; consequently, the consumed electric power per unit time is reduced.
  • the outdoor unit 20 not only memorizes the limited value of the consumed electric power per unit time, but also has the time measuring function of the timer circuit 23 ; thereby, the outdoor unit 20 and the indoor units 2 a and 2 b can be controlled so that the amount of the consumed electric power per unit time does not exceed the limited value.
  • FIG. 9 is a block diagram illustrating the configuration of an outdoor unit according to Embodiment 6 of the present invention.
  • an outdoor unit 24 is composed of the coolant circuit 8 , inverter 9 , a Watt-hour meter connection circuit 25 connected to the Watt-hour meter 3 through the control line 5 , and the controller 21 communicatively connected to the coolant circuit 8 , the inverter 9 , and the Watt-hour meter connection circuit 10 .
  • the above Watt-hour meter connection circuit 25 is composed of an input unit 26 for inputting pulse signals related to the amount of the electric power transmitted from the Watt-hour meter 3 ; a memory 27 for memorizing the value of the electric-power amount related to the inputted pulse signals; an output unit 28 for outputting to the controller 21 the memorized value of the electric-power amount; and an electric power supplier 31 having a built-in AC/DC converter circuit 29 (an example of an ac/dc converter circuit) for supplying the operational electric power from commercial electric power in order to operate the Watt-hour meter connection circuit 25 , and a built-in secondary battery 30 (an example of a self-maintenance battery) for supplying the operational electric power during the blackout.
  • a built-in AC/DC converter circuit 29 an example of an ac/dc converter circuit
  • a built-in secondary battery 30 an example of a self-maintenance battery
  • the amount of the electric power measured by the Watt-hour meter 3 is transmitted as pulse signals into the Watt-hour meter connection circuit 25 of the outdoor unit 24 through the control line 5 .
  • the electric power supplier 31 of the Watt-hour meter connection circuit 25 supplies the operational electric power to the Watt-hour meter connection circuit 25 by the AC/DC converter circuit 29 .
  • the Watt-hour meter connection circuit 25 takes the pulse signals from the Watt-hour meter 3 by the input unit 26 , and transmits the pulse signals into the memory 27 .
  • the memory 27 transmits the pulse signals into the controller 21 through the output unit 28 .
  • the electric power supplier 31 (an example of an electric-power shut-down detection means) detects shut-down of electric power supplied to the outdoor unit 24 , the electric power supplier 31 (an example of an electric-power switching means) switches, from the AC/DC converter circuit 2 to the secondary battery 30 , the electric power for operating the Watt-hour meter connection circuit 25 .
  • the Watt-hour meter connection circuit 25 takes the pulse signals from the Watt-hour meter 3 by the input unit 26 , and then, the value of the electric power amount related to this pulse signals is memorized into the memory 27 .
  • the value of the electric power amount memorized in the memory 27 is transmitted to the controller 21 through the output unit 28 , after the electric power is re-supplied.
  • the Watt-hour meter connection circuit 25 of the outdoor unit 24 has the electric power supplier 31 including the memory 27 and the secondary battery 30 , even when electric power supplying to the outdoor unit 24 is shut down due to a blackout, etc., the misgivings are pondered that measured data by the Watt-hour meter 3 is lost.
  • the air conditioner according to the present invention is suitable for integrating, by the side of the outdoor unit based on the transmission signals from the Watt-hour meter, the amount of the consumed electric power.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Signal Processing (AREA)
  • Human Computer Interaction (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Air Conditioning Control Device (AREA)
US11/659,697 2005-09-14 2005-09-14 Air Conditioner Abandoned US20080209927A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2005/016932 WO2007032065A1 (ja) 2005-09-14 2005-09-14 空気調和装置

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US20080209927A1 true US20080209927A1 (en) 2008-09-04

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070095083A1 (en) * 2005-10-28 2007-05-03 Lg Electronics Inc. Method and apparatus for removing partial overload in an air conditioner
US20120023976A1 (en) * 2010-07-28 2012-02-02 Younggeul Kim Air conditioner and method for controlling the same
US20120023977A1 (en) * 2010-07-28 2012-02-02 Younggeul Kim Air conditioner and method for controlling the same
CN102414518A (zh) * 2009-04-22 2012-04-11 三菱电机株式会社 空调装置
US20140345826A1 (en) * 2013-04-30 2014-11-27 Lg Electronics Inc. Air conditioner and method of controlling an air conditioner
CN104879902A (zh) * 2015-05-11 2015-09-02 珠海宏马电器有限公司 一种应用于垃圾房除臭杀菌的控制装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4399674B2 (ja) * 2007-04-16 2010-01-20 圭一 大田 コンプレッサの動作制御装置と動作制御方法
JP5465400B2 (ja) * 2008-08-07 2014-04-09 高砂熱学工業株式会社 空調能力計測システムおよび室外機の風量検出方法

Citations (1)

* Cited by examiner, † Cited by third party
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US4341345A (en) * 1980-02-19 1982-07-27 Honeywell Inc. Method and apparatus for power load shedding

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06137650A (ja) * 1992-10-28 1994-05-20 Toshiba Corp 蓄電式空気調和装置
JP4164586B2 (ja) * 2002-04-26 2008-10-15 日立アプライアンス株式会社 空気調和装置の電力料金請求システム

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4341345A (en) * 1980-02-19 1982-07-27 Honeywell Inc. Method and apparatus for power load shedding

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070095083A1 (en) * 2005-10-28 2007-05-03 Lg Electronics Inc. Method and apparatus for removing partial overload in an air conditioner
CN102414518A (zh) * 2009-04-22 2012-04-11 三菱电机株式会社 空调装置
US8948919B2 (en) 2009-04-22 2015-02-03 Mitsubishi Electric Corporation Air-conditioning apparatus
US20120023976A1 (en) * 2010-07-28 2012-02-02 Younggeul Kim Air conditioner and method for controlling the same
US20120023977A1 (en) * 2010-07-28 2012-02-02 Younggeul Kim Air conditioner and method for controlling the same
US8791592B2 (en) * 2010-07-28 2014-07-29 Lg Electronics Inc. Air conditioner and method for controlling the same
US9031706B2 (en) * 2010-07-28 2015-05-12 Lg Electronics Inc. Air conditioner and method for controlling the same
US20140345826A1 (en) * 2013-04-30 2014-11-27 Lg Electronics Inc. Air conditioner and method of controlling an air conditioner
CN104879902A (zh) * 2015-05-11 2015-09-02 珠海宏马电器有限公司 一种应用于垃圾房除臭杀菌的控制装置

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WO2007032065A1 (ja) 2007-03-22

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