EP2354691B1 - Air conditioner - Google Patents
Air conditioner Download PDFInfo
- Publication number
- EP2354691B1 EP2354691B1 EP10009043.0A EP10009043A EP2354691B1 EP 2354691 B1 EP2354691 B1 EP 2354691B1 EP 10009043 A EP10009043 A EP 10009043A EP 2354691 B1 EP2354691 B1 EP 2354691B1
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- EP
- European Patent Office
- Prior art keywords
- power consumption
- amount
- air conditioner
- emission
- indoor unit
- 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.)
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- 230000006854 communication Effects 0.000 claims description 11
- 238000004891 communication Methods 0.000 claims description 11
- 239000002826 coolant Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000015654 memory Effects 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000007175 bidirectional communication Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
Images
Classifications
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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
- 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
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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
- 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
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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
- 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
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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
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/54—Control or safety arrangements characterised by user interfaces or communication using one central controller connected to several sub-controllers
-
- 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
- F24F2140/00—Control inputs relating to system states
- F24F2140/60—Energy consumption
Definitions
- An aspect of the present invention relates to an air conditioner having a device for displaying a CO 2 emission resultant from energy consumption.
- WO 2009/022 453 A1 discloses a monitoring system for air conditioners, according to the preamble of claim 1, which is provided with a plurality of air conditioners having a refrigerant circuit of vapor compression refrigeration cycle; local controllers, which are arranged for the air conditioners, respectively, and receive data outputted from the air conditioners and transmit prescribed operation data; and a host controller which receives the operation data for the air conditioners transmitted from the loyal controllers through a communication circuit.
- JP 2000 274 778 discloses an energy management apparatus which comprises a comfort index calculator for calculating a plurality of comfort indexed from measured results of indoor sensors, a resident state input to input means and a plurality of set operation mode candidates held by set operation mode memories, facility load calculators for calculating a plurality of facility loads from measured results of atmospheric sensors, a measured result of an indoor load sensor, characteristics of a structure input to a structure characteristic input means and a plurality of set operation mode candidates held by set operation mode memories.
- the related-art air conditioner has a low degree of accuracy of integration of power consumption used for calculating an amount of CO 2 emission and has hitherto drawbacks; namely, being able to display only rough power consumption and an rough amount of CO 2 emission, only displaying a mere comparison of power consumption integrated over a predetermined period with a predetermined threshold value, etc.
- an aspect of the present invention may make it possible for an air conditioner to accurately calculate an amount of power used.
- another aspect of the present invention may make it possible for an air conditioner to display, in a comparative manner, an amount of CO 2 emission generated in a present day and an amount of CO 2 emission generated in a preceding day and also displaying a daily amount of CO 2 emission and a monthly amount of CO 2 emission, thereby making a user aware of an amount of CO 2 emission resultant from operation of an air conditioner and prompting the user to select energy-saving operation.
- an air conditioner comprising: an air conditioner main unit including at least one indoor unit and an outdoor unit; and a remote controller for remotely controlling the air conditioner main unit, wherein the at least one indoor unit includes a representative indoor unit, wherein the outdoor unit collects a power consumption calculated by the at least one indoor unit and totalizes a power consumption calculated by the outdoor unit and the collected power consumption, thereby obtaining a total power consumption, and transmits the total power consumption to the representative indoor unit, wherein the representative indoor unit integrates the total power consumption and calculates an amount of power consumption, and transmits the amount of power consumption to the remote controller, and wherein the amount of power consumption is converted into an amount of CO 2 emission, and the amount of CO 2 emission is displayed.
- the remote controller may display an integrated value of the amount of CO 2 emission generated by a current time in a present day and an integrated value of the amount of CO 2 emission generated in a preceding day side by side.
- Fig. 1 is a schematic view of an air conditioner of a first exemplary embodiment of the present invention
- Fig. 2 is a coolant circuit diagram of the air conditioner of the first exemplary embodiment of the present invention
- Fig. 3 is a schematic view of other air conditioners of the first exemplary embodiment of the present invention.
- an air conditioner 100 includes a separation-type air conditioner main unit 10 and a remote controller 20.
- the air conditioner main unit 10 an outdoor unit 1 and an indoor unit 2 are separated from each other and connected together by a coolant pipe and a control communication line.
- the remote controller 20 is connected to a control communication section of the indoor unit, transmits operation command information to the air conditioner main unit 10, and displays operation information.
- the air conditioner main unit 10 includes a compressor 3, a four-way valve 4, a first heat exchanger 5, an expansion mechanism 6, and a second heat exchanger 7. They are sequentially connected together by a coolant pipe, thereby forming a refrigeration cycle.
- the outdoor unit 1 includes the compressor 3, the four-way valve 4, the first heat exchanger 5, and the expansion mechanism 6, and the indoor unit 2 includes the second heat exchanger 7.
- the first heat exchanger 5 operates as a condenser, and the second heat exchanger operates as an evaporator.
- the four-way valve 4 is switched, and the second heat exchanger operates as the condenser, and the first heat exchanger operates as the evaporator.
- the remote controller 20 has a display unit 21 and an input section 22 and remotely controls the air conditioner main unit 10.
- the display unit 21 is configured to display an operating state of the air conditioner main unit 10.
- the display unit 21 is configured to display whether or not the air conditioner is in operation, an operating mode (a cooling mode/a heating mode), a preset temperature, preset air capacity, a direction of wind, etc.
- the input section 22 includes a plurality of buttons (switches) and control information can be inputted For example, an operation/stop command, switching of an operation mode, a preset temperature, preset air capacity, a direction of the wind, etc., can be inputted.
- the air conditioner shown in Fig. 3 is a multi-type air conditioner in which a plurality of indoor units are connected to one outdoor unit, and includes a one-coolant system.
- the one-coolant system forms a coolant circulation circuit in which a coolant discharged from the compressor 3 located in the outdoor unit 1 returns to the outdoor unit 1 by way of the indoor unit 2 and flows into an inlet side of the compressor 3.
- the remote controller 20 is connected to one of the plurality of indoor units 2 by the control communication line.
- the connected indoor unit receives operation command information from the remote controller 20. The information is then transmitted to another indoor unit by way of a crossover control communication line connected among the indoor units.
- one indoor unit 2 is connected to the outdoor unit 1 by the control communication line and the information is transmitted to the outdoor unit 1 by the control communication line.
- the drawing illustrates a case where the outdoor unit 1 is linked to the indoor unit 2 that is connected to the remote controller 20, by the control communication line.
- the outdoor unit 1 may be connected to another indoor unit 2.
- Fig. 4 is a descriptive view of a display method for the air conditioner of the first exemplary embodiment of the present invention, showing the information displayed on the display unit 21 of the remote controller 20 shown in Fig. 1 .
- a message "An amount of CO 2 emission is now being collected” showing that data are now being collected appears on the display unit 21 for about 5 to 10 seconds.
- an amount of CO 2 emission integrated in a present day and an amount of CO 2 emission integrated in a preceding day are displayed side by side.
- a message showing that an integrated value of the amount of CO 2 emission generated as a result of air conditioning being performed by operating the air conditioner on the present day, by a current time on the present day when operation of the air conditioner is stopped is 12.5 kg
- another message showing that a recorded value of the amount of CO 2 emission generated in the preceding day is 120.5 kg are displayed side by side.
- the integrated amount of emission generated in the present day and the integrated amount of emission generated in the preceding day are displayed side by side. Hence, the user becomes possible to easily compare the amounts of CO 2 emission, to thus become aware of energy saving.
- Fig. 5 is a descriptive view of the display method for the air conditioner of the first exemplary embodiment of the present invention, showing the information displayed on the display unit 21 of the remote controller 20 shown in Fig. 1 .
- a main menu is invoked on a display screen by actuation of a button on the remote controller 20.
- a menu titled “Display an amount of CO 2 emission” is selected, the next screen titled “An amount of CO 2 emission display menu” appears.
- “Daily data (Data pertaining to amounts of CO 2 emission generated last week)” or “monthly data (Data pertaining to amounts of CO 2 emission generated for the last 14 months)” is selected in the screen titled "An amount of CO 2 emission display menu", information [Display B] or [Display C] shown in Fig.
- the address is used so as to enable a selection of a coolant system to which a specific air conditioner belongs.
- the specific air conditioner may be an air conditioner which information related to thereof is displayed and controlled.
- Fig. 6 is a flowchart of the air conditioner of the first exemplary embodiment of the present invention.
- the outdoor unit 1 and the indoor units 2 independently calculate their own power consumptions (S1).
- the outdoor unit 1 detects an average bus voltage and a corrected average primary current for each sample period and calculates the power consumption from the thus detected voltage and current.
- each of the indoor units 2 calculates a power consumption (OI) according to the number of rotations of a fan (the target number of rotations of a fan for control purpose).
- the outdoor unit calculates the power consumption for each sampling period of a predetermined time, whilst the indoor unit 2 calculates the power consumption when a change occurs in the power consumption as a result of a change having arisen in the number of rotations of the fan.
- a drain pump correction value is added to the power consumption of the indoor unit as required.
- the indoor units 2 transmit data pertaining to the calculated power consumptions (OI) of the respective indoor units to the outdoor unit 1 by way of transceiving device.
- the power consumptions are transmitted every time a change has arisen in power consumptions of the indoor units (S2).
- a volume of control communication between the outdoor unit 1 and the respective indoor units 2 can thereby be suppressed and capacity and capability for control communication can be lessened.
- the power consumptions (OI) calculated by the respective indoor units are received by the outdoor unit.
- the power consumption (OC) of the outdoor unit is added to the power consumptions (OI), thereby calculating a total power consumption (Pt) of the air conditioner main unit (S3).
- a previously-set representative indoor unit receives the total power consumption (Pt) from the outdoor unit 1 (S4).
- the representative indoor unit calculates an average value every minute and integrates calculation results, thereby calculating an amount of power consumption (S5).
- the thus-calculated amount of power consumption is stored in a storage device section of the representative indoor
- a signal for requesting data pertaining to the amount of power consumption from the remote controller 20 arrives to the representative indoor unit (S6).
- Data pertaining to the integrated, stored amount of power consumption are transmitted from the representative indoor unit to the remote controller 20.
- the remote controller 20 converts the received amount of power consumption into an amount of CO 2 emission [kg] by using a CO 2 conversion coefficient. As shown in Fig. 5 , the amount of CO 2 emission is displayed on the display unit 21 (S7).
- the CO 2 conversion coefficient can be set by the remote controller so as to be able to address different power situations.
- the air conditioner 100 of the first exemplary embodiment of the present invention allows to efficiently inform a user of an amount of CO 2 emission resultant from operation of the air conditioner 100.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
- Air Conditioning Control Device (AREA)
Description
- An aspect of the present invention relates to an air conditioner having a device for displaying a CO2 emission resultant from energy consumption.
- There has been proposed a related-art air conditioner that automatically reports information pertaining to a consumption ratio required during a predetermined period according to power consumed during operation (see; for instance,
JP-A-2008-261630 Fig. 3 ]). - There has also been proposed a related-art air conditioner that has a display unit that calculates an amount of CO2 emission from power consumption and displays the thus-calculated amount of CO2 emission and a control device that controls operation of an air conditioner main unit based on the thus-calculated amount of CO2 emission (see; for instance,
JP-A-2004-060998 Fig. 3 ]). - There has also been proposed a related-art air conditioner that has a bidirectional communication device provided in both an air conditioner main unit and a remote controller. The main unit measures power consumption and the remote controller displays a total integrated value of power consumed over a predetermined number of days (see; for instance,
JP-A-2001-099465 Fig. 3 ]). -
WO 2009/022 453 A1 discloses a monitoring system for air conditioners, according to the preamble ofclaim 1, which is provided with a plurality of air conditioners having a refrigerant circuit of vapor compression refrigeration cycle; local controllers, which are arranged for the air conditioners, respectively, and receive data outputted from the air conditioners and transmit prescribed operation data; and a host controller which receives the operation data for the air conditioners transmitted from the loyal controllers through a communication circuit. -
JP 2000 274 778 - The related-art air conditioner has a low degree of accuracy of integration of power consumption used for calculating an amount of CO2 emission and has hitherto drawbacks; namely, being able to display only rough power consumption and an rough amount of CO2 emission, only displaying a mere comparison of power consumption integrated over a predetermined period with a predetermined threshold value, etc.
- Accordingly, an aspect of the present invention may make it possible for an air conditioner to accurately calculate an amount of power used.
- Additionally, another aspect of the present invention may make it possible for an air conditioner to display, in a comparative manner, an amount of CO2 emission generated in a present day and an amount of CO2 emission generated in a preceding day and also displaying a daily amount of CO2 emission and a monthly amount of CO2 emission, thereby making a user aware of an amount of CO2 emission resultant from operation of an air conditioner and prompting the user to select energy-saving operation.
- According to an aspect of the present invention, there is provided an air conditioner comprising: an air conditioner main unit including at least one indoor unit and an outdoor unit; and a remote controller for remotely controlling the air conditioner main unit, wherein the at least one indoor unit includes a representative indoor unit, wherein the outdoor unit collects a power consumption calculated by the at least one indoor unit and totalizes a power consumption calculated by the outdoor unit and the collected power consumption, thereby obtaining a total power consumption, and transmits the total power consumption to the representative indoor unit, wherein the representative indoor unit integrates the total power consumption and calculates an amount of power consumption, and transmits the amount of power consumption to the remote controller, and wherein the amount of power consumption is converted into an amount of CO2 emission, and the amount of CO2 emission is displayed.
- In the above-described air conditioner, the remote controller may display an integrated value of the amount of CO2 emission generated by a current time in a present day and an integrated value of the amount of CO2 emission generated in a preceding day side by side.
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Fig. 1 is a schematic view of an air conditioner of a first exemplary embodiment of the present invention; -
Fig. 2 is a coolant circuit diagram of the air conditioner of the first exemplary embodiment of the present invention; -
Fig. 3 is a schematic view of other air conditioners of the first exemplary embodiment of the present invention; -
Fig. 4 is a descriptive view of a display method for the air conditioner of the first exemplary embodiment of the present invention; -
Fig. 5 is a descriptive view of a display method for the air conditioner of the first exemplary embodiment of the present invention; and -
Fig. 6 is a flowchart of the air conditioner of the first exemplary embodiment of the present invention. -
Fig. 1 is a schematic view of an air conditioner of a first exemplary embodiment of the present invention;Fig. 2 is a coolant circuit diagram of the air conditioner of the first exemplary embodiment of the present invention; andFig. 3 is a schematic view of other air conditioners of the first exemplary embodiment of the present invention. - As shown in
Fig. 1 , anair conditioner 100 includes a separation-type air conditionermain unit 10 and aremote controller 20. In the air conditionermain unit 10, anoutdoor unit 1 and anindoor unit 2 are separated from each other and connected together by a coolant pipe and a control communication line. Theremote controller 20 is connected to a control communication section of the indoor unit, transmits operation command information to the air conditionermain unit 10, and displays operation information. - As shown in
Fig. 2 , the air conditionermain unit 10 includes acompressor 3, a four-way valve 4, afirst heat exchanger 5, anexpansion mechanism 6, and a second heat exchanger 7. They are sequentially connected together by a coolant pipe, thereby forming a refrigeration cycle. Specifically, theoutdoor unit 1 includes thecompressor 3, the four-way valve 4, thefirst heat exchanger 5, and theexpansion mechanism 6, and theindoor unit 2 includes the second heat exchanger 7. - During cooling operation, the
first heat exchanger 5 operates as a condenser, and the second heat exchanger operates as an evaporator. During heating operation, the four-way valve 4 is switched, and the second heat exchanger operates as the condenser, and the first heat exchanger operates as the evaporator. - As shown in
Fig. 1 , theremote controller 20 has adisplay unit 21 and aninput section 22 and remotely controls the air conditionermain unit 10. Thedisplay unit 21 is configured to display an operating state of the air conditionermain unit 10. For example, thedisplay unit 21 is configured to display whether or not the air conditioner is in operation, an operating mode (a cooling mode/a heating mode), a preset temperature, preset air capacity, a direction of wind, etc. Theinput section 22 includes a plurality of buttons (switches) and control information can be inputted For example, an operation/stop command, switching of an operation mode, a preset temperature, preset air capacity, a direction of the wind, etc., can be inputted. - The air conditioner shown in
Fig. 3 is a multi-type air conditioner in which a plurality of indoor units are connected to one outdoor unit, and includes a one-coolant system. The one-coolant system forms a coolant circulation circuit in which a coolant discharged from thecompressor 3 located in theoutdoor unit 1 returns to theoutdoor unit 1 by way of theindoor unit 2 and flows into an inlet side of thecompressor 3. Theremote controller 20 is connected to one of the plurality ofindoor units 2 by the control communication line. The connected indoor unit receives operation command information from theremote controller 20. The information is then transmitted to another indoor unit by way of a crossover control communication line connected among the indoor units. Meanwhile, oneindoor unit 2 is connected to theoutdoor unit 1 by the control communication line and the information is transmitted to theoutdoor unit 1 by the control communication line. The drawing illustrates a case where theoutdoor unit 1 is linked to theindoor unit 2 that is connected to theremote controller 20, by the control communication line. However, theoutdoor unit 1 may be connected to anotherindoor unit 2. -
Fig. 4 is a descriptive view of a display method for the air conditioner of the first exemplary embodiment of the present invention, showing the information displayed on thedisplay unit 21 of theremote controller 20 shown inFig. 1 . When operation of the air conditionermain unit 10 is stopped, a message "An amount of CO2 emission is now being collected" showing that data are now being collected appears on thedisplay unit 21 for about 5 to 10 seconds. Subsequently, an amount of CO2 emission integrated in a present day and an amount of CO2 emission integrated in a preceding day are displayed side by side. In the embodiment, a message showing that an integrated value of the amount of CO2 emission generated as a result of air conditioning being performed by operating the air conditioner on the present day, by a current time on the present day when operation of the air conditioner is stopped is 12.5 kg, and another message showing that a recorded value of the amount of CO2 emission generated in the preceding day is 120.5 kg, are displayed side by side. - As mentioned above, the integrated amount of emission generated in the present day and the integrated amount of emission generated in the preceding day are displayed side by side. Hence, the user becomes possible to easily compare the amounts of CO2 emission, to thus become aware of energy saving.
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Fig. 5 is a descriptive view of the display method for the air conditioner of the first exemplary embodiment of the present invention, showing the information displayed on thedisplay unit 21 of theremote controller 20 shown inFig. 1 . A main menu is invoked on a display screen by actuation of a button on theremote controller 20. When a menu titled "Display an amount of CO2 emission" is selected, the next screen titled "An amount of CO2 emission display menu" appears. When either "Daily data (Data pertaining to amounts of CO2 emission generated last week)" or "monthly data (Data pertaining to amounts of CO2 emission generated for the last 14 months)" is selected in the screen titled "An amount of CO2 emission display menu", information [Display B] or [Display C] shown inFig. 5 appears. For example, in the case of [Display B], a title of "Daily amounts of CO2 emission" appears. Dates (year/month/day) and corresponding amounts of CO2 emission generated on the dates are displayed in pairs beneath the title in descending sequence from the latest date. Moreover, in the case of [Display C], a title of "Monthly amounts of CO2 emission" appears. Months and years (year/month) and corresponding amounts of CO2 emission generated in the months are displayed in pairs beneath the title in descending sequence from the latest month. An "address 0" is displayed in some of the example displays inFig. 5 . The address shows, for example, the address set on each one-coolant system circuit. When theremote controller 20 is configured to control or communicate with a plurality of coolant systems, the address is used so as to enable a selection of a coolant system to which a specific air conditioner belongs. The specific air conditioner may be an air conditioner which information related to thereof is displayed and controlled. -
Fig. 6 is a flowchart of the air conditioner of the first exemplary embodiment of the present invention. When the air conditioner main unit is in operation, theoutdoor unit 1 and theindoor units 2 independently calculate their own power consumptions (S1). Theoutdoor unit 1 detects an average bus voltage and a corrected average primary current for each sample period and calculates the power consumption from the thus detected voltage and current. A formula to calculate the power consumption is, Power consumption (OC) = Average bus voltage x Corrected average primary current x Coefficient K x Moment. Meanwhile, each of theindoor units 2 calculates a power consumption (OI) according to the number of rotations of a fan (the target number of rotations of a fan for control purpose). However, is a longer period of time is consumed before occurrence of a change in the number of rotations of the fan of the indoor unit as compared with a period of a time consumed before occurrence of a change in the power consumption of the outdoor unit. The outdoor unit calculates the power consumption for each sampling period of a predetermined time, whilst theindoor unit 2 calculates the power consumption when a change occurs in the power consumption as a result of a change having arisen in the number of rotations of the fan. A drain pump correction value is added to the power consumption of the indoor unit as required. - The
indoor units 2 transmit data pertaining to the calculated power consumptions (OI) of the respective indoor units to theoutdoor unit 1 by way of transceiving device. The power consumptions are transmitted every time a change has arisen in power consumptions of the indoor units (S2). A volume of control communication between theoutdoor unit 1 and the respectiveindoor units 2 can thereby be suppressed and capacity and capability for control communication can be lessened. The power consumptions (OI) calculated by the respective indoor units are received by the outdoor unit. The power consumption (OC) of the outdoor unit is added to the power consumptions (OI), thereby calculating a total power consumption (Pt) of the air conditioner main unit (S3). A previously-set representative indoor unit receives the total power consumption (Pt) from the outdoor unit 1 (S4). The representative indoor unit calculates an average value every minute and integrates calculation results, thereby calculating an amount of power consumption (S5). The thus-calculated amount of power consumption is stored in a storage device section of the representative indoor unit. - Subsequently, a signal for requesting data pertaining to the amount of power consumption from the
remote controller 20 arrives to the representative indoor unit (S6). Data pertaining to the integrated, stored amount of power consumption are transmitted from the representative indoor unit to theremote controller 20. Theremote controller 20 converts the received amount of power consumption into an amount of CO2 emission [kg] by using a CO2 conversion coefficient. As shown inFig. 5 , the amount of CO2 emission is displayed on the display unit 21 (S7). The CO2 conversion coefficient can be set by the remote controller so as to be able to address different power situations. - Accordingly, the
air conditioner 100 of the first exemplary embodiment of the present invention allows to efficiently inform a user of an amount of CO2 emission resultant from operation of theair conditioner 100.
Claims (5)
- An air conditioner comprising:an air conditioner main unit (10) including an outdoor unit (1) and at least one indoor unit (2) connected to the outdoor unit (1); anda remote controller (20) for remotely controlling the air conditioner main unit (10),wherein the at least one indoor unit (2) includes a representative indoor unit, characterised in that the outdoor unit (1) is configured to detect an average bus voltage and a corrected average primary current for each sample period and to calculate a power consumption (OC) from the detected average bus voltage and corrected average primary current, wherein the at least one indoor unit (2) is configured to calculate a power consumption (OI) when a change has arisen in a number of rotations of a fan of said at least one indoor unit (2), and to transmit the calculated power consumption (OI) to the outdoor unit (1) every time a change has arisen in the calculated power consumption (OI),wherein the outdoor unit (1) is configured to totalize the power consumption (OC) calculated by the outdoor unit (1) and the power consumption (OI) transmitted from the indoor unit (2), thereby obtaining a total power consumption (Pt), and to transmit the total power consumption (Pt) to the representative indoor unit (2) at each communication which is performed periodically,wherein the representative indoor unit is configured to integrate the total power consumption (Pt) and to calculate an amount of power consumption, and to transmit the amount of power consumption to the remote controller (20), andwherein the remote controller (20) is configured to convert the amount of power consumption into an amount of CO2 emission, and to display the amount of CO2 emission.
- The air conditioner according to claim 1, wherein, when receiving the total power consumption (Pt), the representative indoor unit is configured to calculate an average value every predetermined time, to thus calculate and store an amount of power consumption; and, when receiving a request for data pertaining to the amount of power consumption, the representative indoor unit is configured to transmit the data pertaining to the amount of power consumption to the remote controller (20).
- The air conditioner according to claim 1 or 2,
wherein the remote controller (20) is configured to display an integrated value of the amount of CO2 emission generated by a current time in a present day and an integrated value of the amount of CO2 emission generated in the past side by side. - The air conditioner according to claim 1 or 2, wherein a daily amount of CO2 emission and a monthly amount of CO2 emission is displayed by switching a display mode of the remote controller (20).
- The air conditioner according to any one of claims 1 through 4, wherein the amount of CO2 emission is displayed on the remote controller (20) regardless of whether the air conditioner main unit (10) is in operation or not.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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JP2010007988A JP5446906B2 (en) | 2010-01-18 | 2010-01-18 | Air conditioner |
Publications (3)
Publication Number | Publication Date |
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EP2354691A2 EP2354691A2 (en) | 2011-08-10 |
EP2354691A3 EP2354691A3 (en) | 2014-12-17 |
EP2354691B1 true EP2354691B1 (en) | 2018-03-21 |
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EP10009043.0A Active EP2354691B1 (en) | 2010-01-18 | 2010-08-31 | Air conditioner |
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---|---|---|---|---|
KR102143348B1 (en) * | 2013-05-08 | 2020-08-11 | 엘지전자 주식회사 | Air conditioner and method |
CN105276758B (en) * | 2014-07-25 | 2019-07-26 | 海信(山东)空调有限公司 | A kind of transducer air conditioning power consumption evaluation method and device |
CN105091222B (en) * | 2015-07-31 | 2017-11-10 | 广东美的制冷设备有限公司 | Power consumption quantity measuring method, device and the air conditioner of air conditioner |
CN105091220B (en) * | 2015-07-31 | 2017-11-10 | 广东美的制冷设备有限公司 | Power consumption quantity measuring method, device and the air conditioner of air conditioner |
CN105091223B (en) * | 2015-07-31 | 2017-11-10 | 广东美的制冷设备有限公司 | Power consumption quantity measuring method, device and the air conditioner of air conditioner |
CN105066346B (en) * | 2015-07-31 | 2017-12-19 | 广东美的制冷设备有限公司 | Power consumption quantity measuring method, device and the air conditioner of air conditioner |
WO2024154929A1 (en) * | 2023-01-19 | 2024-07-25 | 삼성전자주식회사 | Air conditioner and control method thereof |
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JP4538659B2 (en) * | 2007-07-31 | 2010-09-08 | 東芝キヤリア株式会社 | Air conditioner |
JP2009063285A (en) * | 2007-08-10 | 2009-03-26 | Daikin Ind Ltd | Monitoring system for air conditioner |
JP2009121781A (en) * | 2007-11-16 | 2009-06-04 | Sanden Corp | Hot water supply apparatus |
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JP2009264604A (en) * | 2008-04-22 | 2009-11-12 | Toshiba Carrier Corp | Air conditioner |
Also Published As
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JP2011145038A (en) | 2011-07-28 |
EP2354691A3 (en) | 2014-12-17 |
JP5446906B2 (en) | 2014-03-19 |
EP2354691A2 (en) | 2011-08-10 |
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