WO2003083377A1 - Climatiseur - Google Patents

Climatiseur Download PDF

Info

Publication number
WO2003083377A1
WO2003083377A1 PCT/JP2003/002609 JP0302609W WO03083377A1 WO 2003083377 A1 WO2003083377 A1 WO 2003083377A1 JP 0302609 W JP0302609 W JP 0302609W WO 03083377 A1 WO03083377 A1 WO 03083377A1
Authority
WO
WIPO (PCT)
Prior art keywords
indoor
room temperature
temperature monitoring
monitoring
unit
Prior art date
Application number
PCT/JP2003/002609
Other languages
English (en)
Japanese (ja)
Inventor
Hidehiko Kataoka
Mitsuaki Nagamine
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.
Priority to EP03745406.3A priority Critical patent/EP1491826B1/fr
Priority to ES03745406.3T priority patent/ES2598355T3/es
Priority to AU2003211720A priority patent/AU2003211720B2/en
Publication of WO2003083377A1 publication Critical patent/WO2003083377A1/fr

Links

Classifications

    • 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
    • F25B13/00—Compression machines, plants or systems, with reversible cycle
    • 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
    • F24F11/62—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
    • 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
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • 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
    • F24F2140/20—Heat-exchange fluid temperature
    • 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
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/023—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units
    • F25B2313/0232—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units with bypasses
    • 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
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/023—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units
    • F25B2313/0233—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units in parallel arrangements
    • 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
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/029—Control issues
    • F25B2313/0293—Control issues related to the indoor fan, e.g. controlling speed
    • 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
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/031—Sensor arrangements
    • F25B2313/0314—Temperature sensors near the indoor heat exchanger
    • 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
    • F25B2700/21—Temperatures
    • F25B2700/2104—Temperatures of an indoor room or compartment
    • 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
    • F25B2700/21—Temperatures
    • F25B2700/2115—Temperatures of a compressor or the drive means therefor
    • F25B2700/21152—Temperatures of a compressor or the drive means therefor at the discharge side of the compressor

Definitions

  • the present invention relates to an air conditioner, particularly to a multi-room air conditioner in which a plurality of indoor units are connected to one outdoor unit.
  • a multi-room air conditioner in which a plurality of indoor units are connected to one outdoor unit.
  • a multi-room air conditioner can perform air conditioning in a plurality of rooms by arranging indoor units in a plurality of rooms.
  • not all of the indoor units are always operating, and some of the indoor units are operating and other indoor units are not operating, or It may be in the thermo-off state. In this case, it is considered that there is no need to circulate the refrigerant in the indoor unit that is stopped or in the thermo-off state.
  • a very small amount of refrigerant is often flowed in order to suppress the occurrence of problems due to liquid pools.
  • many air conditioners are equipped with a room temperature sensor and have a room temperature monitoring function for detecting the room temperature.
  • the components of the air conditioner can be controlled, and the room can be controlled to a comfortable temperature.
  • the room temperature may be detected by taking indoor air into the indoor unit to prevent the room temperature sensor of the indoor unit in the thermo-off state from being affected by the temperature of the indoor heat exchanger. Therefore, when monitoring the room temperature, the indoor fan is driven even in the indoor unit in the thermo-off state. As a result, the room temperature can be detected more accurately.
  • each indoor unit often determines the start of room temperature monitoring independently.
  • each indoor unit measures the time with a timer and monitors the room temperature at regular time intervals, such as once every 5 minutes.
  • the indoor fans may be simultaneously driven in a plurality of indoor units in a thermo-off state.
  • the blow-out temperature drops sharply in the cab for the following reasons. That is, in the above-described multi-room air conditioner, since the refrigerant flows even in the thermo-off state, when the indoor fan is driven, the refrigerant condenses. If this occurs simultaneously in multiple indoor units, a sharp drop in pressure will occur in the cab. For this reason, a phenomenon in which the blow-out temperature drops rapidly in the operator's room is likely to occur.
  • An object of the present invention is to provide an air conditioner that can accurately detect the indoor temperature even in an indoor unit in a thermo-off state while suppressing a sharp drop in the blowout temperature in an operating room.
  • the air conditioner according to claim 1 includes a plurality of indoor units, an outdoor unit, and a room temperature monitoring control unit.
  • Each indoor unit has a room temperature sensor, an indoor heat exchanger, an indoor fan, and an indoor control unit.
  • the outdoor unit has an outdoor heat exchanger, and forms a refrigerant circuit with a plurality of indoor units.
  • the indoor control unit determines whether or not the start condition of the room temperature monitoring by the room temperature sensor is satisfied, and drives the indoor fan when the room temperature monitoring is performed when the heating operation is turned off.
  • the room temperature monitoring controller selects a predetermined indoor unit from the plurality of indoor units, and transmits a signal regarding permission of room temperature monitoring to the indoor controller of the selected indoor unit.
  • the indoor control unit determines whether or not to perform room temperature monitoring based on both the above signal and the room temperature monitoring start condition.
  • the indoor control unit determines whether to perform room temperature monitoring based on both the signal received from the room temperature monitoring control unit and the start condition of room temperature monitoring. For this reason, this air conditioner can limit the number of indoor units that perform room temperature monitoring simultaneously from the room temperature monitoring control unit. Therefore, at the same time , The number of indoor fans to be driven can be limited. As a result, in this air conditioner, it is possible to accurately detect the indoor temperature even in the thermo-off state indoor unit while suppressing a sharp drop in the outlet temperature in the operating room.
  • the invention according to claim 2 is the air conditioner according to claim 1, wherein the signal is a room temperature monitoring permission signal that permits room temperature monitoring. Then, the indoor control unit performs room temperature monitoring when the room temperature monitoring permission signal is received and the start condition of the room temperature monitoring is satisfied.
  • the indoor control unit receives the room temperature monitoring permission signal, and performs room temperature monitoring when the start condition of the room temperature monitoring is satisfied. Therefore, even if a certain indoor control unit determines that the conditions for starting room temperature monitoring are satisfied based on the conditions inside the indoor unit, room temperature monitoring is performed until the room temperature monitoring control unit permits room temperature monitoring. Absent. Therefore, the number of indoor units that perform room temperature monitoring at the same time can be limited by the room temperature monitoring control unit. As a result, in this air conditioner, it is possible to accurately detect the indoor temperature even in the indoor unit in the thermo-off state while suppressing a sharp decrease in the outlet temperature in the operating room.
  • the invention according to claim 3 is the air conditioner according to claim 2, wherein the room temperature monitoring control unit transmits a room temperature monitoring permission signal at a different time for each indoor control unit.
  • the room temperature monitoring permission signal is transmitted to each indoor control unit with a time lag, so that two or more indoor units do not perform room temperature monitoring at the same time. For this reason, in this air conditioner, it is possible to further suppress a sharp drop in the outlet temperature in the operating room.
  • the invention according to claim 4 is the air conditioner according to any one of claims 1 to 3, wherein the room temperature monitoring control unit transmits the signal at an equal timing to each of the indoor control units. To send.
  • the room temperature monitoring control unit transmits a signal to each of the indoor control units at an equal timing. This gives each indoor unit an opportunity to perform room temperature monitoring evenly. This enables monitoring of the room temperature of each indoor unit The occurrence of bias in the number of rings can be suppressed.
  • the invention according to claim 5 is the air conditioner according to any one of claims 1 to 4, wherein the room temperature monitoring control unit is an air conditioner of the indoor unit that is in a thermo-off state of the heating operation among the plurality of indoor units.
  • the above signal is transmitted only to the indoor control unit.
  • the room temperature monitoring control unit transmits a signal only to the indoor control unit of the indoor unit that is in the thermo-off state of the heating operation. For this reason, the probability that the indoor unit loses the opportunity for monitoring is lower than when the signal is transmitted to the indoor control units of all the indoor units.
  • the invention according to claim 6 is the air conditioner according to any one of claims 1 to 4, wherein the room temperature monitoring control unit transmits a signal to all indoor units.
  • the room temperature monitoring control unit transmits a signal to all indoor units. For this reason, the room temperature monitoring control unit does not need to determine whether the indoor unit is in the thermo-off state. This simplifies the control and reduces the load on the room temperature monitoring controller.
  • Fig. 1 is an external view of the air conditioner.
  • FIG. 2 is a schematic diagram of a refrigerant circuit of the air conditioner.
  • FIG. 3 is a control block diagram of the air conditioner.
  • FIG. 4 is a diagram showing the relationship between the timers.
  • FIG. 5 is a diagram showing a specific example of each timer.
  • FIG. 6 is a diagram showing a timer when one of the indoor units is turned off.
  • FIG. 1 shows an air conditioner 1 employing an embodiment of the present invention.
  • the air conditioner 1 is a so-called multi-room air conditioner in which a plurality of indoor units are connected to one outdoor unit. ⁇
  • This air conditioner 1 has four indoor units 3 a, 3 b, 3 c, and one outdoor unit 2. 3d is connected by refrigerant pipes 4a, 4b, 4c and 4d, respectively. These four indoor units 3a, 3b, 3c, 3d are arranged in separate rooms.
  • FIG. 2 schematically shows the refrigerant circuit of the air conditioner 1.
  • the refrigerant circuit includes one outdoor unit 2 and four indoor units 3 a, 3 b, 3 c, and 3 d connected in parallel to the outdoor unit 2.
  • the indoor unit 3a includes an indoor heat exchanger 30a, an electric valve 31a, an indoor fan 32a, a room temperature thermistor 33a, and an indoor control unit 34a (see Fig. 3). ing.
  • the indoor heat exchanger 30a and the electric valve 31a are connected in series, and constitute a refrigerant circuit with the outdoor unit 2.
  • the motor-operated valve 31a is provided on the outlet side of the indoor heat exchanger 30a and adjusts the amount of refrigerant flowing through the indoor heat exchanger 30a.
  • the room fan 32a is provided in the indoor unit 3a, and is driven by the indoor control unit 34a.
  • the indoor fan 32a takes in the indoor air in which the indoor unit 3a is arranged into the interior of the indoor unit 3a, and sends the air subjected to the heat exchange by the indoor heat exchanger 30a to the indoor.
  • the room temperature thermistor 33a is provided inside the indoor unit 3a, detects the indoor temperature, and transmits a detection signal to the indoor control unit 34a.
  • the indoor control unit 34a includes a microprocessor, a ROM, a RAM, various interfaces, and the like. As shown in Fig. 3, the indoor control section 34a is connected to the electric valve 31a, the indoor fan 32a, and the room temperature thermistor 33a, and receives the detection signal of the room temperature thermistor 33a. You. The indoor control unit 34a transmits a control signal to the motor-operated valve 31a to adjust the opening. Further, the indoor control unit 34a drives the indoor fan 32a when performing room temperature monitoring described later in a state where the thermostat is off.
  • the outdoor unit 2 includes a compressor 20, a four-way switching valve 21, an outdoor heat exchanger 22, an accumulator 23, a discharge pipe thermistor 24, an outdoor control unit 25 (see FIG. 3), and the like.
  • the compressor 20, the four-way switching valve 21, the outdoor heat exchanger 22, and the accumulator 23 constitute a refrigerant circuit between the indoor unit and the four-way switching valve 21. The flow of the refrigerant is switched at different times.
  • the discharge pipe thermistor is mounted on the discharge side of the compressor 20 and detects the temperature of the discharge pipe on the discharge side of the compressor 20.
  • the outdoor control unit 25 includes a microprocessor, a ROM, a RAM, various interfaces, and the like. As shown in FIG. 3, the outdoor control unit 25 is connected to a discharge pipe thermistor 24, and receives a detection signal of the discharge pipe thermistor 24. Further, the outdoor control unit 25 controls the air conditioning operation by controlling the operation frequency of the compressor 20 according to various conditions during operation. In addition, the outdoor control unit 25 determines the opening degree based on the discharge pipe temperature for the electrically operated valve of the indoor unit that is operating, and determines the opening of the electrically operated valve of the indoor unit that is not operating. The opening is determined to a value proportional to the opening of the motor-operated valve of the machine.
  • a transmission line 40a is provided between the outdoor control unit 25 and the indoor control unit 34a, and a control signal for the motor-operated valve 31a is transmitted through the transmission line 40a. It is possible to transmit and receive various signals such as signals related to permission to monitor room temperature.
  • the other indoor units 3b, 3c, 3d have the same configuration as the indoor unit 3a, and are connected to the outdoor unit 2.
  • the same components are shown with the symbols replaced.
  • the motorized valve 31a of the indoor unit 3b is expressed as the motorized valve 31b of the indoor unit 3b.
  • the room temperature monitor detects the room temperature periodically by the room temperature thermistors 33a, 33b, 33c, 33d in the indoor units 3a, 3b, 3c, 3d. A ring is performed.
  • the air conditioner 1 monitors the room temperature of the indoor unit in a thermo-off state, and detects the room temperature of the room where the indoor unit is arranged.
  • the indoor control unit 25 performs control to turn on the thermostat.
  • the indoor control unit of the indoor unit drives the indoor fan to control the room temperature. Is detected. In this way, when the indoor fan is driven during room temperature monitoring, room temperature monitoring is performed on the air taken in from the room. Therefore, the room temperature thermistor is affected by the heat of the indoor heat exchanger. Can be reduced. This enables accurate room temperature detection.
  • the room temperature monitoring is controlled so that the room temperature monitoring by the indoor unit in the thermo-off state does not start simultaneously in a plurality of indoor units.
  • the outdoor control unit 25 selects an indoor unit for performing room temperature monitoring, and transmits a room temperature monitoring permission signal to the indoor control unit of the selected indoor unit. At this time, the outdoor control unit 25 transmits the room temperature monitoring permission signal with a time lag between the indoor control units 34a, 34b, 34c, and 34d.
  • Each of the indoor control units 34a, 34b, 34c, 34d determines whether or not the conditions for starting room temperature monitoring are satisfied. The conditions for starting this room temperature monitoring are determined independently by each indoor unit 3a, 3b, 3c, 3d.
  • the indoor control units 34a, 34b, 34c, and 34d receive the room temperature monitoring permission signal from the outdoor control unit 25 and perform room temperature monitoring when the start condition of the room temperature monitoring is satisfied. I do.
  • the outdoor control unit 25 determines whether to start room temperature monitoring control on the outdoor unit 2 side.
  • the outdoor control unit 25 starts the room temperature monitoring control when both of the following two conditions are satisfied.
  • Air conditioner 1 is in heating operation.
  • Air conditioner 1 is not defrosting. [Start setting of room temperature monitoring timer for each indoor unit]
  • Tm2 (A) represents a room temperature monitoring permission timer that counts the time during which the indoor unit 3a is permitted to monitor the room temperature.
  • the other indoor units 3b, 3c, and 3d are shown by replacing the symbols in parentheses.
  • the monitoring permission timer for indoor unit 3b is expressed as Tm2 (B).
  • Tm2 (B) the monitoring permission timer for indoor unit 3b.
  • TmO 1 (B) represents the first prohibition timer of the indoor unit 3b.
  • the first prohibition timer is a timer that counts a time during which each indoor unit is initially prohibited from monitoring the room temperature after the outdoor control unit 25 starts the room temperature monitoring control. Note that the first-time prohibition timer TmO 1 (A) of the indoor unit 3a is set to zero as described later, and is not shown in FIG.
  • the outdoor control unit 25 sets the timer value of each timer as follows.
  • the time during which the indoor units 3a, 3b, 3c, and 3d are prohibited from monitoring the room temperature is the room temperature monitoring inhibition time T1
  • the indoor units 3a, 3b, 3c, and 3d are the room temperature monitoring times, respectively.
  • the time permitted for monitoring is referred to as the room temperature monitoring permitted time T2.
  • the room temperature monitoring prohibited time T1 and the room temperature monitoring permitted time T2 are the same for each indoor unit 3a, 3b, 3c, 3d. Accordingly, the timer values of the monitoring permission timers Tm2 (A), Tm2 (B), Tm2 (C), and Tm2 (D) of the indoor units 3a, 3b, 3c, and 3d are all T2.
  • the monitoring prohibition timers Tm 1 (A), Tml (B), Tm 1 (C), and Tml (D) of the indoor units 3 a, 3 b, 3 c, and 3 d are all Tl.
  • the monitoring prohibition timer is a timer that counts the time during which each of the indoor units 3a, 3b, 3c, and 3d is prohibited from monitoring the room temperature. Count down monitoring prohibition time.
  • the timer value of the first prohibition timer of each indoor unit 3a, 3b, 3c, 3d is set as follows.
  • each indoor unit 3a, 3 The monitoring interval ⁇ for b, 3c, 3d can be obtained by the following equation.
  • the monitoring interval of each indoor unit means the time from the end of the permission of monitoring of the room temperature of a certain indoor unit to the start of the permission of monitoring of the room temperature of the next indoor unit.
  • the timer value of the first prohibition timer of each indoor unit is given by the following equation, respectively.
  • TmO 1 (A) ( ⁇ + ⁇ 2) X 0
  • the outdoor control unit 25 sets and starts the initial prohibition timer of each of the indoor units 3a, 3b, 3c3d.
  • the outdoor control unit 25 permits monitoring of each of the indoor units 3a, 3b, 3c, and 3d.
  • Set and start the timer Thereafter, as long as the conditions for starting room temperature monitoring are satisfied, the set start of the monitoring disable timer and the monitoring enable timer for each indoor unit 3a, 3b, 3c, 3d is cyclically performed. .
  • the monitoring interval ⁇ 0. This means that if the monitoring permission timer of a certain indoor unit counts over, the monitoring permission timer of another indoor unit is set and started immediately without any time delay.
  • the initial prohibition timer for each indoor unit 3a, 3b, 3c, 3d is as follows. ⁇
  • TmO 1 (A) 0 s
  • TmO 1 (B) 90 s
  • the initial inhibition timer TmO 1 (A) O s
  • TmO 1 (B) 90 s
  • TmO of each of the indoor units 3 a, 3 b, 3 c, and 3 d TmO of each of the indoor units 3 a, 3 b, 3 c, and 3 d.
  • the timer Tm2 (A) for indoor unit 3a counts over and the timer for initial prohibition of indoor unit 3b TmO at the same time. 1 (B) counts over.
  • the monitoring permission timer Tm2 (B) of the indoor unit 3b is set and started.
  • the monitoring prohibition timer Tml (A) 270 (not shown) of the indoor unit 3a is set and started.
  • the timer TmO 1 (C) for the first time of the indoor unit 3 c is over counting.
  • the monitoring permission timer Tm2 (C) of the indoor unit 3c is set and started.
  • the monitoring permission timer Tm 2 (D) of the indoor unit 3 d When the monitoring permission timer Tm 2 (D) of the indoor unit 3 d is over, the monitoring prohibition timer Tml (A) (not shown) of the indoor unit 3 a is over, and the monitoring of the indoor unit 3 a is performed.
  • the permission timer Tm2 (A) is reset and started. Thereafter, this control is repeated.
  • the outdoor control unit 25 has the monitoring permission timer described above. During this time, a monitoring permission signal is sent to the target indoor unit. This makes it possible to transmit the monitoring permission signal to each of the indoor units 3a, 3b, 3c, and 3d with a simple control at a time interval.
  • thermo-off prohibition timer of the indoor unit is set and started.
  • the timer value of the thermo-off initial prohibition timer is the room temperature monitoring prohibition time T1.
  • the monitoring permission flag f (D) is determined as follows.
  • thermo-off initial prohibition timer Tm 3 (D) has counted over.
  • thermo-off initial prohibition timer Tm 3 (D) is counting.
  • the monitoring permission flag f (D) is set to 0.
  • the monitoring permission flag of each indoor unit is set to zero when monitoring control starts.
  • the thermostat first off timer Tm 3 (D) of indoor unit 3 d is not counting.
  • Indoor unit 3d is in the heating thermo-off state.
  • each of the indoor units 3a, 3b, 3c, and 3d the first thermo-off prohibition timer Tm3 (a), Tm3 (b), Tm3 (c), and Tm3 (d) start room temperature monitoring control. When you clear.
  • the indoor unit has a low probability of losing the monitoring opportunity.
  • the indoor control units 34a, 34b, 34c, and 34d perform room temperature monitoring when the room temperature monitoring permission signal is received and the room temperature monitoring start condition is satisfied. For this reason, even if a certain indoor control unit determines that the conditions for starting room temperature monitoring are satisfied from the conditions inside the indoor unit, the room temperature monitoring is not performed until the outdoor control unit 25 permits the room temperature monitoring. . Then, the outdoor control unit 25 does not transmit a monitoring permission signal to two or more indoor units at the same time, and monitors the indoor control units 34a, 34b, 34c, and 34d at staggered times. Send the permission signal. Therefore, two or more indoor units do not perform room temperature monitoring at the same time.
  • the indoor fans of two or more indoor units are not driven at the same time, and there is no sudden influence on the refrigerant.
  • the indoor fans 32a, 32b, 32c, and 32d are driven to take indoor air into the indoor units 3a, 3b, 3c, and 3d.
  • the indoor unit in the thermo-off state the room temperature can be accurately detected.
  • the timer values of the monitoring permission timer and the monitoring prohibition timer of each indoor unit 3a, 3b, 3c, 3d are the same. That is, the outdoor control unit 25 transmits a monitoring permission signal to each of the indoor control units 34a, 34b, 34c, and 34d at an equal timing. For this reason, the room temperature monitoring permission signal is transmitted to the indoor units 3a, 3b, 3c, and 3d in the same cycle with a delay. For this reason, each indoor unit 3a, 3b, 3c, 3d is given an even opportunity to perform room temperature monitoring. Thereby, it is possible to suppress the occurrence of bias in the number of room temperature monitoring of the indoor units 3a, 3b, 3c, 3d.
  • the number of indoor units connected to the outdoor unit 2 is not limited to the number described in the above embodiment, but may be two or three, or five or more.
  • the monitoring permission timer is not counted for two or more indoor units at the same time.However, if the effect on the refrigerant is small, monitoring permission for two or more indoor units at the same time is permitted.
  • the monitoring permission signal is transmitted from the outdoor control unit 25, and the monitoring start conditions of the indoor units 3a, 3b, 3c, and 3d are satisfied, and the monitoring permission signal is transmitted. Room temperature monitoring is performed when both receiving a signal are satisfied.
  • the signal transmitted by the outdoor control unit 25 is not limited to the monitoring permission signal, and a monitoring prohibition signal may be transmitted. In this case, room temperature monitoring is performed when both the monitoring start conditions of the indoor units 3a, 3b, 3c, and 3d are satisfied and the monitoring prohibition signal is not received.
  • the air conditioner according to the present invention it is possible to accurately detect the indoor temperature even in an indoor unit in a thermo-off state while suppressing a sharp drop in the outlet temperature in the operating room.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Signal Processing (AREA)
  • Air Conditioning Control Device (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)

Abstract

L'invention porte sur un climatiseur (1) permettant de détecter avec précision la température ambiante intérieure même en cas de désactivation du thermostat d'une unité intérieure et par là d'éviter les baisses abruptes de la température de l'air fourni. Ledit climatiseur (1) comporte plusieurs unités intérieures (3a-3d), une unité extérieure (2), et une section extérieure de commande (25). Chaque unité intérieure (3a-3d) comporte un thermistor (33a-33d) de température ambiante; un échangeur thermique; une soufflante (32a-32d); et un régulateur (34a-34d). L'unité extérieure (2) comporte un échangeur thermique et constitue avec les unités intérieures (3a-3d) un circuit réfrigérant. Un régulateur intérieur (34a-34d) détermine si les conditions d'activation du thermistor (33a-33d) de son unité (3a-3d) pour mesurer la température ambiante sont ou non satisfaites, et met en route la soufflante (32a-32d) de son unité (3a-3d) si la température ambiante est mesurée pendant que le chauffage fonctionne alors que le thermostat est désactivé. La section extérieure de commande (25) sélectionne une des unités intérieures (3a-3d) et transmet à son régulateur un signal d'activation de la mesure de température. Par ailleurs le régulateur (34a-34d) d'une unité intérieure détermine si la mesure de température est effectuée ou non en fonction du susdit signal et des conditions déterminant l'activation de la mesure de température ambiante. FIG 3 1 COMPRESSEUR 2 VANNE UNVERSEUSE A 4 VOIES 3 THERMISTOR TUBE DISTRIBUTEUR 4 SECTION EXTERIEURE DE COMMANDE 5 SOUPAPR MOTEUR 6 SOUFFLANTE INTE 7 THERMISTOR TEMPERATURE AMBIANTE 8 REGULATEUR INTERIEUR
PCT/JP2003/002609 2002-03-28 2003-03-05 Climatiseur WO2003083377A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP03745406.3A EP1491826B1 (fr) 2002-03-28 2003-03-05 Climatiseur
ES03745406.3T ES2598355T3 (es) 2002-03-28 2003-03-05 Acondicionador de aire
AU2003211720A AU2003211720B2 (en) 2002-03-28 2003-03-05 Air conditioner

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2002-092313 2002-03-28
JP2002092313A JP3778117B2 (ja) 2002-03-28 2002-03-28 空気調和機

Publications (1)

Publication Number Publication Date
WO2003083377A1 true WO2003083377A1 (fr) 2003-10-09

Family

ID=28671703

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2003/002609 WO2003083377A1 (fr) 2002-03-28 2003-03-05 Climatiseur

Country Status (6)

Country Link
EP (1) EP1491826B1 (fr)
JP (1) JP3778117B2 (fr)
CN (1) CN1284951C (fr)
AU (1) AU2003211720B2 (fr)
ES (1) ES2598355T3 (fr)
WO (1) WO2003083377A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4135766B2 (ja) * 2006-09-19 2008-08-20 ダイキン工業株式会社 空調制御の仲介装置、空調制御システム、空調制御方法および空調制御プログラム
KR101294305B1 (ko) * 2011-01-21 2013-08-08 엘지전자 주식회사 중앙 관제 시스템 및 이의 관제점 설정 방법
JP5916488B2 (ja) 2012-04-06 2016-05-11 三菱重工業株式会社 制御装置および方法並びにプログラム、それを備えたマルチ型空気調和システム
JP5916489B2 (ja) * 2012-04-06 2016-05-11 三菱重工業株式会社 制御装置および方法並びにプログラム、それを備えたマルチ型空気調和システム
CN102829531A (zh) * 2012-09-25 2012-12-19 广东志高暖通设备股份有限公司 一种检测多联机室内机环境温度的方法
WO2017104051A1 (fr) * 2015-12-17 2017-06-22 三菱電機株式会社 Système de climatisation
KR20210042981A (ko) 2018-09-20 2021-04-20 도시바 캐리어 가부시키가이샤 공기 조화기 및 제어 방법
JP2024013014A (ja) * 2022-07-19 2024-01-31 三菱重工サーマルシステムズ株式会社 空調機及び制御方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11173628A (ja) * 1997-12-15 1999-07-02 Mitsubishi Heavy Ind Ltd 空気調和装置
JP2002013784A (ja) * 2000-06-29 2002-01-18 Sanyo Electric Co Ltd 空気調和システム

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01114655A (ja) * 1987-10-28 1989-05-08 Matsushita Seiko Co Ltd 電力デマンド制御装置
JPH03144246A (ja) * 1989-10-30 1991-06-19 Daikin Ind Ltd 空気調和装置の運転制御装置
JPH07174396A (ja) * 1993-05-25 1995-07-14 Mitsubishi Electric Corp マルチ形空気調和機

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11173628A (ja) * 1997-12-15 1999-07-02 Mitsubishi Heavy Ind Ltd 空気調和装置
JP2002013784A (ja) * 2000-06-29 2002-01-18 Sanyo Electric Co Ltd 空気調和システム

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP1491826A4 *

Also Published As

Publication number Publication date
CN1284951C (zh) 2006-11-15
EP1491826B1 (fr) 2016-08-03
CN1643305A (zh) 2005-07-20
JP3778117B2 (ja) 2006-05-24
EP1491826A4 (fr) 2010-05-05
AU2003211720B2 (en) 2006-02-23
EP1491826A1 (fr) 2004-12-29
AU2003211720A1 (en) 2003-10-13
ES2598355T3 (es) 2017-01-27
JP2003287258A (ja) 2003-10-10

Similar Documents

Publication Publication Date Title
JP4379537B2 (ja) 圧縮機の運転制御装置及びそれを備えた空気調和装置
CN105783203B (zh) 空调器及其室内机的异常检测方法
KR100715999B1 (ko) 멀티형 공기조화기 및 그 운전방법
EP2354693B1 (fr) Dispositif d'air conditionné
EP1987295B1 (fr) Système de climatisation et son procédé de régulation
WO2008015930A1 (fr) Conditionneur d'air
WO2003083377A1 (fr) Climatiseur
WO2003081140A1 (fr) Climatiseur et procede de commande de climatiseur
JP2013200085A (ja) 空気調和機
JP2001065949A (ja) 多室形空気調和機の制御装置
EP1956306B1 (fr) Climatiseur multi-système et procédé de commande correspondant
JP5125606B2 (ja) 空調制御システム
JP2004251583A (ja) 空気調和機
JP2011202884A (ja) 冷凍サイクル装置
JP2003090585A (ja) 空気調和機の冷媒系統アドレス設定方法
JP2009236350A (ja) 給湯装置
JPH1183211A (ja) 冷凍装置の高圧保護制御装置
KR102155558B1 (ko) 공기조화기 및 그 제어방법
JP2005133970A (ja) 空気調和装置
JPH0486445A (ja) 空気調和機
KR20170075371A (ko) 공기조화기 및 그 동작방법
WO2018207304A1 (fr) Climatiseur
KR101812015B1 (ko) 공기조화기 및 그 제어방법
JP3738123B2 (ja) 空気調和システム
KR101266098B1 (ko) 공기조화기 및 그 제어방법

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AU CN

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PT RO SE SI SK TR

121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 20038069555

Country of ref document: CN

Ref document number: 2003211720

Country of ref document: AU

REEP Request for entry into the european phase

Ref document number: 2003745406

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 2003745406

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 2003745406

Country of ref document: EP

WWG Wipo information: grant in national office

Ref document number: 2003211720

Country of ref document: AU