WO2012053529A1 - Climatiseur - Google Patents

Climatiseur Download PDF

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Publication number
WO2012053529A1
WO2012053529A1 PCT/JP2011/073988 JP2011073988W WO2012053529A1 WO 2012053529 A1 WO2012053529 A1 WO 2012053529A1 JP 2011073988 W JP2011073988 W JP 2011073988W WO 2012053529 A1 WO2012053529 A1 WO 2012053529A1
Authority
WO
WIPO (PCT)
Prior art keywords
indoor
flow path
heat exchanger
refrigerant
air conditioner
Prior art date
Application number
PCT/JP2011/073988
Other languages
English (en)
Japanese (ja)
Inventor
木澤　敏浩
裕記 藤岡
Original Assignee
ダイキン工業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ダイキン工業株式会社 filed Critical ダイキン工業株式会社
Priority to EP11834368.0A priority Critical patent/EP2631560B1/fr
Priority to ES11834368T priority patent/ES2776986T3/es
Priority to CN201180049916.0A priority patent/CN103168205B/zh
Priority to AU2011319038A priority patent/AU2011319038B2/en
Publication of WO2012053529A1 publication Critical patent/WO2012053529A1/fr

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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
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
    • F24F1/0063—Indoor units, e.g. fan coil units characterised by heat exchangers by the mounting or arrangement of the heat exchangers
    • 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
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0071—Indoor units, e.g. fan coil units with means for purifying supplied air
    • F24F1/0073—Indoor units, e.g. fan coil units with means for purifying supplied air characterised by the mounting or arrangement of filters
    • 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
    • F24F11/50—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
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
    • 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
    • F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
    • F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
    • 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
    • F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F24F5/0089—Systems using radiation from walls or panels
    • 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
    • F25B2313/005—Outdoor unit expansion valves
    • 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
    • F25B2313/006—Compression machines, plants or systems with reversible cycle not otherwise provided for two pipes connecting the outdoor side to the indoor side with multiple indoor units
    • 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
    • F25B2313/021—Indoor unit or outdoor unit with auxiliary heat exchanger not forming part of the indoor or outdoor unit
    • F25B2313/0213—Indoor unit or outdoor unit with auxiliary heat exchanger not forming part of the indoor or outdoor unit the auxiliary heat exchanger being only used during heating

Definitions

  • the present invention relates to an air conditioner in which an indoor heat exchanger and a radiation panel are arranged in parallel.
  • an air conditioner one having an indoor unit having an indoor heat exchanger and a radiation panel and an outdoor unit that circulates and supplies a refrigerant to the indoor heat exchanger and the radiation panel is known (see, for example, Patent Document 1). .
  • the flow path provided with the indoor heat exchanger and the flow path provided with the radiation panel are arranged in parallel, and the pressure in the refrigerant circuit is adjusted to each flow path.
  • An expansion valve pressure reduction mechanism
  • an object of the present invention is to provide an air conditioner that can be easily controlled.
  • An air conditioner is an air conditioner including a refrigerant circuit that connects an indoor unit and an outdoor unit, wherein the indoor unit is provided so as to face a fan inside the air conditioner.
  • a heat exchanger and a radiation panel provided on the surface thereof, wherein the refrigerant circuit includes a main flow path in which a decompression mechanism, an outdoor heat exchanger, and a compressor are provided in order, and the mainstream during heating operation.
  • a first passage provided with the indoor heat exchanger and a branching portion provided on the downstream side of the compressor of the passage and a junction provided on the upstream side of the decompression mechanism, and heating operation
  • the branch portion and the merging portion are connected in parallel with the first flow path, and the second flow path is provided with the radiation panel, and the first flow path and the second flow path are provided.
  • a valve mechanism is provided in any of the flow paths.
  • the pressure in the refrigerant circuit can be reduced only by controlling the pressure reducing mechanism provided in the main flow path, compared with the case where the pressure reducing mechanisms are provided in the first flow path and the second flow path, respectively. Control (for example, control based on the discharge temperature of the compressor) can be easily performed. Moreover, since the valve mechanism is provided in one of the first flow path and the second flow path, the flow rate of the refrigerant flowing through the indoor heat exchanger or the radiation panel can be adjusted.
  • An air conditioner according to a second invention is characterized in that, in the first invention, the valve mechanism is provided in the second flow path.
  • valve mechanism since the valve mechanism is provided in the second flow path, the flow rate of the refrigerant flowing through the radiation panel can be adjusted. Further, by closing the valve mechanism, it is possible to flow the refrigerant only through the indoor heat exchanger without flowing the refrigerant through the radiation panel.
  • the air conditioner according to a third invention is characterized in that, in the second invention, the valve mechanism is provided on the downstream side of the radiation panel in the second flow path during the heating operation.
  • the valve mechanism since the valve mechanism is provided on the downstream side of the radiation panel in the flow direction of the refrigerant during the heating operation, the refrigerant that passes through the valve mechanism is disposed more than in the case where the valve mechanism is provided on the upstream side of the radiation panel. The temperature can be lowered. Therefore, the durability of the valve mechanism can be improved. Further, when the valve mechanism is closed and the cooling operation is performed, the low-temperature refrigerant can be completely blocked from flowing into the radiant panel, so that dew condensation on the radiant panel can be prevented.
  • An air conditioner according to a fourth invention is the air conditioner according to any one of the first to third inventions, wherein the outdoor unit includes the compressor, the outdoor heat exchanger, and the pressure reducing mechanism. Has the valve mechanism.
  • the pressure in the refrigerant circuit can be reduced only by controlling the pressure reducing mechanism provided in the main flow path, compared with the case where the pressure reducing mechanisms are provided in the first flow path and the second flow path, respectively. Control (for example, control based on the discharge temperature of the compressor) can be easily performed. Moreover, since the valve mechanism is provided in one of the first flow path and the second flow path, the flow rate of the refrigerant flowing through the indoor heat exchanger or the radiation panel can be adjusted.
  • valve mechanism since the valve mechanism is provided in the second flow path, the flow rate of the refrigerant flowing through the radiation panel can be adjusted. Further, by closing the valve mechanism, it is possible to flow the refrigerant only through the indoor heat exchanger without flowing the refrigerant through the radiation panel.
  • the valve mechanism since the valve mechanism is provided on the downstream side of the radiant panel with respect to the flow direction of the refrigerant during the heating operation, the refrigerant passing through the valve mechanism is more than the case of providing the valve mechanism on the upstream side of the radiant panel.
  • the temperature can be lowered. Therefore, the durability of the valve mechanism can be improved. Further, when the valve mechanism is closed and the cooling operation is performed, the low-temperature refrigerant can be completely blocked from flowing into the radiant panel, so that dew condensation on the radiant panel can be prevented.
  • the decompression mechanism since the decompression mechanism is provided in the outdoor unit, the sound accompanying switching of the decompression mechanism cannot be heard indoors. That is, indoor noise can be prevented when the pressure reducing mechanism is switched.
  • the air conditioner 1 of the present embodiment includes an indoor unit 2 installed indoors, an outdoor unit 3 installed outdoor, and a remote controller 4 (see FIG. 3). ing.
  • the indoor unit 2 detects an indoor heat exchanger 20, an indoor fan 21 disposed in the vicinity of the indoor heat exchanger 20, a radiation panel 22, an indoor electric valve (valve mechanism) 23, and an indoor air temperature.
  • the indoor temperature sensor 24 is provided.
  • the outdoor unit 3 includes a compressor 30, a four-way switching valve 31, an outdoor heat exchanger 32, an outdoor fan 33 disposed in the vicinity of the outdoor heat exchanger 32, and an outdoor electric valve (pressure reduction mechanism) 34.
  • the indoor unit 2 and the outdoor unit 3 are connected by an annular refrigerant circuit 10.
  • the refrigerant circuit 10 includes a main channel 11, a first channel 12, and a second channel 13.
  • the main flow path 11 is provided with an outdoor electric valve 34, an outdoor heat exchanger 32, and a compressor 30 in this order.
  • the main flow path 11 is provided with a four-way switching valve 31, and the outdoor heat exchanger 32 is connected to either the discharge side or the suction side of the compressor 30 by switching the four-way switching valve 31.
  • the An accumulator 35 is provided between the suction side of the compressor 30 in the main flow path 11 and the four-way switching valve 31, and between the discharge side of the compressor 30 in the main flow path 11 and the four-way switching valve 31.
  • a discharge temperature sensor 36 is provided.
  • An outdoor heat exchanger temperature sensor 28 is attached to the outdoor heat exchanger 32.
  • the outdoor electric valve 34 can change its opening degree and functions as a pressure reducing mechanism.
  • a branch portion 11 a is provided on the downstream side of the compressor 30.
  • a junction portion 11b is provided on the upstream side of the outdoor electric valve 34.
  • the first flow path 12 and the second flow path 13 are provided between the branching portion 11a and the merging portion 11b, and are connected in parallel.
  • the first flow path 12 is provided with an indoor heat exchanger 20, and the second flow path 13 is provided with a radiation panel 22 and an indoor motorized valve 23 in order from the branching portion 11 a side.
  • the flow path excluding the first flow path 12 and the second flow path 13, and the flow path between the branching portion 11 a and the merging portion 11 b becomes the main flow path.
  • the indoor heat exchanger 20 is provided inside the indoor unit 2 so as to face the indoor fan 21, and is disposed on the windward side of the indoor fan 21. Therefore, in the indoor unit 2, the air heated or cooled by heat exchange with the indoor heat exchanger 20 is blown into the room as hot air or cold air by the indoor fan 21, so that hot air heating or cooling is performed. .
  • the indoor heat exchanger 20 is provided with an indoor heat exchanger temperature sensor 27.
  • the radiation panel 22 is disposed on the surface of the indoor unit 2, and a pipe through which a refrigerant flows is provided on the back side thereof. Therefore, in the indoor unit 2, radiant heating is performed by radiating the heat of the refrigerant flowing through the piping of the radiant panel 22 into the room. Further, a panel entry temperature sensor 25 and a panel exit temperature sensor 26 are provided on both sides of the radiation panel 22 in the second flow path 13.
  • the indoor motor operated valve 23 is provided to adjust the flow rate of the refrigerant supplied to the radiation panel 22.
  • the indoor motor-operated valve 23 is provided on the downstream side of the radiation panel 22 in the refrigerant flow direction during a radiation heating operation and a radiation breeze heating operation, which will be described later.
  • the air conditioner 1 of the present embodiment can perform a cooling operation, a warm air heating operation, a radiant heating operation, and a radiant light wind heating operation.
  • the cooling operation is an operation in which the refrigerant is allowed to flow through the indoor heat exchanger 20 without flowing the refrigerant through the radiant panel 22, and the hot air heating operation is the indoor heat exchanger without flowing the refrigerant through the radiant panel 22.
  • 20 is an operation in which a refrigerant is passed through to perform hot air heating.
  • the radiant heating operation is an operation in which the refrigerant is passed through the indoor heat exchanger 20 to perform hot air heating, and the refrigerant is passed through the radiant panel 22 to perform radiant heating.
  • the radiant light breeze heating operation is an operation of performing radiant heating by flowing a refrigerant through the radiant panel 22 while performing a warm air heating with a lower air volume and a constant air volume than during the hot air heating operation and the radiant heating operation.
  • the indoor motor-operated valve 23 is closed and the four-way switching valve 31 is switched to the state shown by the solid line in FIG. Therefore, as indicated by the solid arrow in FIG. 1, the high-temperature and high-pressure refrigerant discharged from the compressor 30 flows into the indoor heat exchanger 20 through the four-way switching valve 31.
  • the refrigerant condensed in the indoor heat exchanger 20 is decompressed by the outdoor motor operated valve 34 and then flows into the outdoor heat exchanger 32.
  • the refrigerant evaporated in the outdoor heat exchanger 32 flows into the compressor 30 via the four-way switching valve 31 and the accumulator 35.
  • the indoor motor-operated valve 23 is opened, and the four-way switching valve 31 is switched to the state indicated by the solid line in FIG. Therefore, as indicated by the solid arrows in FIG. 2, the high-temperature and high-pressure refrigerant discharged from the compressor 30 flows into the indoor heat exchanger 20 and the radiation panel 22 through the four-way switching valve 31. Then, the refrigerant condensed in the indoor heat exchanger 20 and the radiation panel 22 is decompressed by the outdoor motor operated valve 34 and then flows into the outdoor heat exchanger 32. The refrigerant evaporated in the outdoor heat exchanger 32 flows into the compressor 30 via the four-way switching valve 31 and the accumulator 35.
  • the remote controller 4 allows the user to perform operation start / stop operation, operation mode setting, indoor temperature target temperature setting (indoor set temperature), blowing air volume setting, and the like.
  • indoor temperature target temperature setting indoor set temperature
  • blowing air volume setting and the like.
  • air volume automatic or “strong” to “weak” can be selected as the air volume setting.
  • the air volume is automatically controlled during the radiant heating operation and the radiant light wind heating operation.
  • the control unit 5 includes a storage unit (storage unit) 50, an indoor motorized valve control unit 52, an indoor fan control unit 53, a compressor control unit (control unit) 54, and an outdoor motorized valve. And a control unit 55.
  • the storage unit 50 stores various operation settings related to the air conditioner 1, control programs, data tables necessary for executing the control programs, and the like.
  • the operation settings include those set by operating the remote controller 4 by the user, such as a target temperature of the room temperature (room set temperature), and those set in advance for the air conditioner 1. .
  • the target temperature range of the radiation panel 22 is set in advance to a predetermined temperature range (for example, 50 to 55 ° C.). Note that the target temperature range of the radiation panel 22 may be set by operating the remote controller 4.
  • the indoor electric valve control unit 52 controls the opening degree of the indoor electric valve 23. During the cooling operation or the hot air heating operation, the indoor motor operated valve control unit 52 closes the indoor motor operated valve 23. In addition, during the radiant heating operation or the radiant breeze heating operation, the indoor motor-operated valve control unit 52 controls the opening degree of the indoor motor-operated valve 23 based on the temperature of the radiant panel 22. Specifically, the surface temperature (predicted value) of the radiation panel 22 is calculated based on the average value of the temperatures detected by the panel entry temperature sensor 25 and the panel exit temperature sensor 26, and the surface temperature of the radiation panel 22 is calculated.
  • the indoor motor-operated valve 23 is controlled so that the predicted value (hereinafter simply referred to as the radiant panel temperature) falls within the panel target temperature range (for example, 50 to 55 ° C.).
  • the panel target temperature range for example, 50 to 55 ° C.
  • both the detected temperature of the panel input temperature sensor 25 and the panel output temperature sensor 26 are used, but only the detected temperature of the panel input temperature sensor 25 is used. Alternatively, only the temperature detected by the panel temperature sensor 26 may be used.
  • the indoor fan control unit 53 controls the rotational speed of the indoor fan 21.
  • the indoor fan control unit 53 determines whether the indoor fan 21 is in accordance with the indoor temperature or the indoor set temperature detected by the indoor temperature sensor 24. Control the number of revolutions.
  • the indoor speed is set to the rotation speed corresponding to each preset fan tap. The fan 21 is controlled.
  • the compressor control unit 54 controls the operating frequency of the compressor 30 based on the indoor temperature, the indoor set temperature, the heat exchange temperature detected by the indoor heat exchange temperature sensor 27, and the like.
  • the outdoor electric valve control unit 55 controls the opening degree of the outdoor electric valve 34. Specifically, the opening degree of the outdoor electric valve 34 is controlled so that the temperature detected by the discharge temperature sensor 36 becomes the optimum temperature in the operating state. The optimum temperature is determined based on the temperature detected by the indoor heat exchange temperature sensor 27, the temperature detected by the outdoor heat exchange temperature sensor 28, and the like.
  • the pressure in the refrigerant circuit 10 can be reduced only by controlling the pressure reducing mechanism (outdoor motor operated valve) 34 provided in the main flow path 11, so that the first flow path Compared with the case where a pressure reducing mechanism is provided in each of 12 and the second flow path 13, the control can be easily performed.
  • the indoor motor operated valve 23 is provided in the second flow path 13. Therefore, the flow rate of the refrigerant flowing through the radiation panel 22 can be adjusted. In addition, by closing the indoor motor-operated valve 23, the refrigerant can flow only to the indoor heat exchanger 20 without flowing the refrigerant to the radiation panel 22.
  • the indoor motor-operated valve 23 is provided on the downstream side of the radiation panel 22 with respect to the refrigerant flow direction during the radiation heating operation and the radiation breeze heating operation. Therefore, the temperature of the refrigerant passing through the indoor motor-operated valve 23 can be made lower than when the indoor motor-operated valve 23 is provided upstream of the radiation panel 22. Therefore, the durability of the indoor motor operated valve 23 can be improved. In addition, when the indoor motor-operated valve 23 is closed and the cooling operation is performed, the low-temperature refrigerant can be completely blocked from flowing into the radiation panel 22, so that condensation on the radiation panel 22 can be prevented.
  • the pressure reducing mechanism is provided in the indoor unit.
  • the outdoor unit with a junction between the flow path provided with the radiant panel and the flow path provided with the indoor heat exchanger, and the pressure reducing mechanism may be provided in the outdoor unit. The number of pipes connecting the machine and the outdoor unit will increase.
  • the outdoor electric valve 34 is provided in the main flow path 11
  • the outdoor electric valve 34 is provided in the outdoor unit 3 without increasing the number of pipes connecting the indoor unit 2 and the outdoor unit 3. be able to. Therefore, the sound accompanying the switching of the outdoor electric valve 34 cannot be heard indoors. That is, indoor noise can be prevented when the outdoor motor operated valve 34 is switched.
  • the indoor motor-operated valve 23 is provided on the downstream side of the radiation panel 22 in the refrigerant flow direction during the radiation heating operation and the radiation breeze heating operation, but may be provided on the upstream side.
  • the air conditioner 1 can perform the warm air heating operation in which the refrigerant flows through the indoor heat exchanger 20 without causing the refrigerant to flow through the radiation panel 22.
  • the indoor electric valve 123 is provided in the first flow path 112
  • a check valve 129 may be provided between the radiation panel 22 and the merging portion 11 b in the second flow path 113. In the second flow path 113, the check valve 129 allows the refrigerant to flow only from the radiation panel 22 toward the merging portion 11b, and does not cause the refrigerant to flow from the merging portion 11b toward the radiating panel 22.
  • a solid line arrow in FIG. 4 indicates the flow of the refrigerant during the radiant heating operation or the radiant breeze heating operation
  • a broken line arrow in FIG. 4 indicates the flow of the refrigerant during the cooling operation.
  • the flow rate of the refrigerant supplied to the indoor heat exchanger 20 can be adjusted by the indoor motor operated valve 123.
  • the indoor motor operated valve 123 by closing the indoor motor operated valve 123, it is possible to perform only the radiant heating by flowing the refrigerant only to the radiation panel 22 without flowing the refrigerant to the indoor heat exchanger 20.
  • the check valve 129 can prevent the low-temperature refrigerant from flowing through the radiation panel 22 during the cooling operation.
  • the indoor motor operated valve 123 is provided in the junction part 11b side of the indoor heat exchanger 20, you may provide in the branch part 11a side.

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  • 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)
  • Fluid Mechanics (AREA)
  • Human Computer Interaction (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Air Conditioning Control Device (AREA)
  • Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)

Abstract

Cette invention concerne une commande plus facile de la structure de décompression. Un climatiseur (1) comprend un circuit de refroidissement (10) reliant une unité en intérieur (2) et une unité en extérieur (3). L'unité en intérieur (2) comprend : un échangeur de chaleur (20) disposé à l'intérieur et faisant face à un ventilateur (21) et sur la surface duquel est monté un panneau rayonnant (22). Le circuit de refroidissement (10) comprend : un canal principal (11) dans lequel sont logés, dans cet ordre, une structure de décompression (34), un échangeur de chaleur en extérieur (32) et un compresseur (30) ; un premier canal (12) qui, en mode chauffage, relie une partie en dérivation (11a) disposée en aval du compresseur (30) dans le canal principal (11), et une partie de confluence (11b) disposée en amont de la structure de décompression (34) et renfermant l'échangeur de chaleur (20) ; et un second canal (13) qui, en mode chauffage, relie la partie en dérivation (11a) et la partie de confluence (11b) en parallèle avec le premier canal (12) et qui renferme le panneau rayonnant (22). De plus, une structure de vanne (23) est montée dans le second canal (13).
PCT/JP2011/073988 2010-10-20 2011-10-19 Climatiseur WO2012053529A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP11834368.0A EP2631560B1 (fr) 2010-10-20 2011-10-19 Climatiseur
ES11834368T ES2776986T3 (es) 2010-10-20 2011-10-19 Acondicionador de aire
CN201180049916.0A CN103168205B (zh) 2010-10-20 2011-10-19 空调机
AU2011319038A AU2011319038B2 (en) 2010-10-20 2011-10-19 Air conditioner

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2010235855A JP5187373B2 (ja) 2010-10-20 2010-10-20 空気調和機
JP2010-235855 2010-10-20

Publications (1)

Publication Number Publication Date
WO2012053529A1 true WO2012053529A1 (fr) 2012-04-26

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Application Number Title Priority Date Filing Date
PCT/JP2011/073988 WO2012053529A1 (fr) 2010-10-20 2011-10-19 Climatiseur

Country Status (6)

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EP (1) EP2631560B1 (fr)
JP (1) JP5187373B2 (fr)
CN (1) CN103168205B (fr)
AU (1) AU2011319038B2 (fr)
ES (1) ES2776986T3 (fr)
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JP5187373B2 (ja) 2013-04-24
AU2011319038A1 (en) 2013-05-23
CN103168205A (zh) 2013-06-19
CN103168205B (zh) 2016-02-24
EP2631560A1 (fr) 2013-08-28
JP2012087998A (ja) 2012-05-10
EP2631560B1 (fr) 2019-12-18

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