WO2014132352A1 - 車両用空気調和装置 - Google Patents
車両用空気調和装置 Download PDFInfo
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- WO2014132352A1 WO2014132352A1 PCT/JP2013/055073 JP2013055073W WO2014132352A1 WO 2014132352 A1 WO2014132352 A1 WO 2014132352A1 JP 2013055073 W JP2013055073 W JP 2013055073W WO 2014132352 A1 WO2014132352 A1 WO 2014132352A1
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- WIPO (PCT)
- Prior art keywords
- pressure
- compressor
- refrigerant
- way valve
- valve
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Classifications
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- 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
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
- F25B49/022—Compressor control arrangements
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00485—Valves for air-conditioning devices, e.g. thermostatic valves
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
- B60H1/00878—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being temperature regulating devices
- B60H1/00899—Controlling the flow of liquid in a heat pump system
- B60H1/00907—Controlling the flow of liquid in a heat pump system where the flow direction of the refrigerant changes and an evaporator becomes condenser
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
- F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
- F16K11/0655—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with flat slides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
- B60H1/00878—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being temperature regulating devices
- B60H2001/00935—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being temperature regulating devices comprising four way valves for controlling the fluid direction
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- 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
- F25B2313/0292—Control issues related to reversing valves
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- 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
- F25B2500/00—Problems to be solved
- F25B2500/27—Problems to be solved characterised by the stop of the refrigeration cycle
Definitions
- This invention relates to a vehicle air conditioner that switches between a cooling operation and a heating operation by a four-way valve.
- the refrigerant flow is switched using a four-way valve.
- the method of switching the four-way valve is to supply high-pressure refrigerant to one and the other of the piston chambers at both ends of the four-way valve via a control electromagnetic valve, and to control electromagnetic from the other.
- the refrigerant is sucked through the valve to make the pressure low, and the valve body is operated by the generated differential pressure (details will be described later).
- Patent Document 1 shows a conventional air conditioner. This is related to the switching of the four-way valve.
- control is performed so that the four-way valve is switched after the inverter frequency exceeds a predetermined value after the thermo-on. Yes.
- the thermo-off state is controlled after switching the four-way valve.
- switching the four-way valve requires a pressure difference between the piston chambers at both ends, and is therefore limited to when the compressor is operating.
- the compressor stops before the four-way valve switches, and the compressor discharges. There is a problem that the pressure and the suction pressure are equalized, and an intermediate stop (insufficient switching) of the valve body inside the four-way valve occurs.
- the present invention has been made to solve the above-described problems, and ensures a pressure difference between the piston chambers necessary for switching the four-way valve even after the compressor is stopped. It aims at obtaining the air harmony device for vehicles which prevents the middle stop of a valve element.
- the four-way valve is provided with a piston mechanism that moves the valve body between one piston chamber and the other piston chamber, and the discharge pressure of the compressor is set to one piston of the four-way valve. Acting on the chamber, causing the suction pressure of the compressor to act on the other piston chamber of the four-way valve, moving the valve body together with the piston mechanism using the pressure difference between the piston chambers, and
- the refrigerant related to the discharge pressure of the compressor or the refrigerant related to the suction pressure is accumulated during the operation of the compressor, and the four-way A pressure reservoir is provided to ensure a pressure difference between the piston chambers necessary for the valve switching operation, and the switching of the four-way valve is necessary between the piston chambers of the four-way valve even after the compressor is stopped. A pressure difference is obtained so as to generate.
- the refrigerant related to the discharge pressure of the compressor or the refrigerant related to the suction pressure is accumulated during the operation of the compressor, and between the piston chambers necessary for the switching operation of the four-way valve. Since the pressure reservoir for ensuring the pressure difference is provided, the pressure difference necessary for the switching operation of the four-way valve is ensured even after the compressor is stopped, and the intermediate stop of the valve body inside the four-way valve is prevented. be able to.
- FIG. 1 is a diagram showing a general heat pump type refrigerant circulation cycle in a vehicle air conditioner.
- the main components in a vehicle air conditioner that can be switched between a cooling operation and a heating operation are a compressor, an indoor heat exchanger, an outdoor heat exchanger, an expansion valve, an accumulator, and a four-way valve (four-way switching for cycle switching) Valve).
- a compressor When switching between the cooling operation and the heating operation, an operation of switching the refrigerant flow direction in the refrigerant circulation cycle is performed using a four-way valve.
- the solid line indicates the flow direction of the refrigerant during the cooling operation
- the broken line indicates the flow direction of the refrigerant during the heating operation.
- the refrigerant compressed by the compressor 1 to high temperature and high pressure passes through the four-way valve 2 and reaches the outdoor heat exchanger 3 where heat is exchanged with the outside air to remove heat and cool down to a medium temperature and high pressure liquid. Condensed.
- the condensed refrigerant is expanded and evaporated by the expansion valve 4.
- the refrigerant, which has been evaporated to low temperature and low pressure cools the room by exchanging heat with the indoor air by the indoor heat exchanger 5, takes the heat, passes through the four-way valve 2, returns to the compressor 1 through the accumulator 6. Repeat this cycle.
- the refrigerant that has been compressed by the compressor 1 to high temperature and high pressure passes through the four-way valve 2 and reaches the indoor heat exchanger 5 to exchange heat with the indoor air, thereby heating the room.
- the pressure is reduced by the expansion valve 4.
- the refrigerant that has been depressurized to a low temperature and low pressure exchanges heat with the outside air by the outdoor heat exchanger 3 to remove heat, passes through the four-way valve 2, passes through the accumulator 6, and returns to the compressor 1. Repeat this cycle.
- FIG. 2 is a diagram showing a state of the four-way valve when heating a general refrigerant circulation cycle in the vehicle air conditioner.
- the accumulator is not shown in FIG.
- the four-way valve 2 includes a cylindrical valve body 11 whose both ends are closed, a valve body 12 that slides in the valve body 11 to switch a refrigerant flow path, and a piston mechanism 13 that operates the valve body 12. And a control electromagnetic valve 14 for switching the pressure for driving the piston mechanism 13.
- the valve body 11 and the piston mechanism 13 constitute a piston chamber E at the left end of the valve body 11 and a piston chamber F at the right end of the valve body 11 as shown in the drawing.
- the four-way valve 2 further includes an inlet joint (pipe) A, an outlet joint (pipe) C, a switching joint (pipe) B, and a switching joint (pipe) D.
- a piston mechanism 13 for moving the valve body 12 between the piston chamber E and the piston chamber F is provided.
- the high-pressure refrigerant compressed by the compressor 1 is supplied to the inlet joint A, and the low-pressure refrigerant from the outlet joint C is sucked into the compressor 1.
- the method of switching the four-way valve 2 is performed by sliding the valve body 12 together with the piston mechanism 13 by the differential pressure (pressure difference) generated between the piston chambers E and F at both ends of the four-way valve 2.
- high-pressure refrigerant from the inlet joint A (refrigerant related to the discharge pressure of the compressor) passes through a capillary tube (hereinafter abbreviated as a tube) 15a, passes through a control electromagnetic valve 14, passes through a tube 15b, and is supplied to the piston chamber E.
- the piston chamber E becomes a high pressure.
- the refrigerant from the piston chamber F passes through the tube 15c, passes through the control solenoid valve 14, passes through the tube 15d, and is sucked from the outlet joint C.
- the piston chamber F becomes low pressure, and the suction pressure of the compressor acts.
- the piston mechanism 13 and the valve body 12 slide to the right as viewed in the drawing, the inlet joint A and the switching joint B circulate, and the switching joint D
- the outlet joint C circulates.
- the high-pressure refrigerant from the inlet joint A is switched by the control electromagnetic valve 14 through the tube 15a and supplied to the piston chamber F through the tube 15c, and the piston chamber F becomes high pressure.
- the refrigerant from the piston chamber E passes through the tube 15b and is switched by the control solenoid valve 14, passes through the tube 15d and is sucked from the outlet joint C, the piston chamber E becomes low pressure, and the suction pressure of the compressor acts.
- the piston mechanism 13 and the valve body 12 slide to the left as viewed in the drawing, the inlet joint A and the switching joint D circulate, and the switching joint B
- the outlet joint C circulates.
- the pressure difference is required between the piston chambers E and F in order to switch the four-way valve 2 in this way, it is limited to when the compressor 1 is operating.
- the compressor 1 stops before the four-way valve 2 switches, and the compressor The discharge pressure and the suction pressure are equalized, causing an intermediate stop of the valve body 12 inside the four-way valve 2.
- FIG. 3 is a diagram showing a refrigerant circulation cycle in the vehicle air conditioner according to Embodiment 1 of the present invention.
- the four-way valve 2 shows a state during heating operation.
- a high pressure reservoir 22 is connected to a pipe (a pipe connecting the compressor 1 and the inlet joint A) through which the high-pressure refrigerant discharged from the compressor 1 flows through a check valve 21 connected to the pipe. Yes.
- the pressure reservoir 22 passes through the tube 15a, passes through the control electromagnetic valve 14, passes through the tube 15b, and is connected to the piston chamber E.
- the high pressure refrigerant is supplied to the piston chamber E to increase the pressure in the piston chamber E.
- the check valve 21 has a flow direction from a pipe through which high-pressure refrigerant flows to a high-pressure pressure reservoir 22.
- the vehicle air conditioner configured as described above includes a high-pressure pressure reservoir 22 via a check valve 21 connected to a high-pressure refrigerant pipe, and the pressure reservoir 22 is compressed during the operation of the compressor 1. Since the refrigerant related to the discharge pressure of the machine 1 is accumulated and a differential pressure is generated between the piston chambers E and F, the high-pressure refrigerant exists in the high-pressure pressure reservoir 22 even after the compressor 1 is stopped.
- the control solenoid valve 14 When the power to the compressor 1 is turned off, the control solenoid valve 14 is also turned off, but the control solenoid valve 14 stops at either the heating switching position or the cooling switching position of the tubes 15a-15d. Therefore, the pressure by the pressure reservoir 22 can be stopped at either the heating switching position or the cooling switching position in the joint AD of the four-way valve 2, and the intermediate position of the valve body 12 of the four-way valve 2 is stopped. Can be avoided reliably.
- the intermediate position stop of the valve body 12 means that the outlet joint C does not flow only with either the switching joint D or B, and the outlet joint C is part of the switching joint D and part of the switching joint B. A half-way switching state that circulates.
- FIG. FIG. 4 is a diagram showing a refrigerant circulation cycle in the vehicle air conditioner according to Embodiment 2 of the present invention.
- the four-way valve 2 shows a state during heating operation.
- a low pressure reservoir 23 connected to the low pressure pipe is provided.
- a low pressure reservoir 23 is connected via a check valve 24 to a pipe (a pipe connecting the outlet joint C and the compressor 1) through which the low pressure refrigerant flows.
- the check valve 24 the direction from the pressure reservoir 23 to the low-pressure piping is the flow direction.
- the low-pressure pressure reservoir 23 is connected to the piston chamber F through the tube 15d, the control electromagnetic valve 14, the tube 15c, and the like.
- the refrigerant in the piston chamber F passes through the tube 15 c, passes through the control solenoid valve 14, passes through the tube 15 d, passes through the pressure reservoir 23, reaches the low-pressure pipe through the check valve 24, and is sucked by the compressor 1. Thereby, the piston chamber F becomes a low pressure.
- the vehicle air conditioner configured as described above includes a low-pressure pressure reservoir 23 via a check valve 24 connected to a pipe through which low-pressure refrigerant flows, and the compressor 1 is in operation in the pressure reservoir 23. Since the refrigerant related to the suction pressure of the compressor 1 is accumulated and a differential pressure is generated between the piston chambers E and F, even after the compressor 1 is stopped, the low pressure of the pressure reservoir 23 causes the four-way The piston chamber E or F of the valve 2 becomes a low pressure, and a differential pressure between the piston chambers E and F required when switching the four-way valve 2 can be ensured. Therefore, the intermediate stop of the four-way valve can be prevented by the above configuration, and a safe cooling / heating operation is possible.
- the volume of the pressure reservoirs 22 and 23 provided in the first and second embodiments is 1.5 to 3 times the maximum volume of the piston chamber E or F of the four-way valve. It is provided. By doing so, the discharge pressure refrigerant or suction pressure refrigerant exceeding the maximum volume of the piston chamber E or F of the four-way valve can be stored, and a sufficient differential pressure is provided between the piston chambers of the four-way valve when switching the four-way valve. By securing it, it is possible to switch the four-way valve reliably. A volume exceeding 3 times is not preferable because the volume becomes large.
- FIG. 5 is a diagram showing a refrigerant circulation cycle in the air-conditioning apparatus according to Embodiment 4 of the present invention.
- the four-way valve 2 shows a state during heating operation.
- the solenoid valve 25 shuts off the flow when the power is turned off, and flows when the power is connected.
Abstract
Description
この発明の前記以外の目的、特徴、観点及び効果は、図面を参照する以下のこの発明の詳細な説明から、さらに明らかになるであろう。
図1は車両用空気調和装置における一般的なヒートポンプタイプの冷媒循環サイクルを示す図である。冷房運転と暖房運転とに切換え可能な車両用空気調和装置における主な構成要素は、圧縮機,室内熱交換器,室外熱交換器,膨張弁,アキュームレータ,及び四方弁(サイクル切換用4路切換弁)である。冷房運転と暖房運転とを切り換える場合は、四方弁を用いて冷媒循環サイクル中の冷媒流通方向を切り換える操作をする。図において、実線は冷房運転時の冷媒の流れ方向を示し、破線は暖房運転時の冷媒の流れ方向を示す。
図4はこの発明の実施の形態2の車両用空気調和装置における冷媒循環サイクルを示す図である。四方弁2は暖房運転時の状態を示している。実施の形態2では、実施の形態1の高圧の圧力溜り22の代わりに、低圧配管に接続される低圧の圧力溜り23を備えたものである。低圧冷媒を流す配管(出口継手Cと圧縮機1とを接続する配管)には、低圧の圧力溜り23が逆止弁24を介して接続されている。逆止弁24は圧力溜り23から低圧配管方向が流通方向である。低圧の圧力溜り23は、図では、チューブ15dを通り制御用電磁弁14を経てチューブ15cを通りピストン室Fに接続されている。ピストン室Fの冷媒は、チューブ15cを通り制御用電磁弁14を経てチューブ15dを通り圧力溜り23を通り、逆止弁24を介して低圧配管に至り、圧縮機1で吸引される。これによりピストン室Fは低圧になる。
実施の形態3は、実施の形態1及び実施の形態2に備える圧力溜り22,23の容積が、四方弁のピストン室E又はFの最大容積に対して、1.5~3倍の容積を備えたものである。このようにすることにより、四方弁のピストン室E又はFの最大容積以上の吐出圧力冷媒又は吸引圧力冷媒を溜めることができ、四方弁を切り換える時に四方弁のピストン室間に十分な差圧を確保することで、確実な四方弁切り換えが可能となる。3倍を超える容積では、体積が大きくなり好ましくない。
実施の形態4は、実施の形態1及び実施の形態2に備える逆止弁に代わって、電磁弁25を設けたものである。図5はこの発明の実施の形態4の空気調和装置における冷媒循環サイクルを示す図である。四方弁2は暖房運転時の状態を示している。電磁弁25は電源が切れたときは流通を遮断し、電源が接続されたときは、流通するものである。以上のように構成されることにより、実施の形態1及び実施の形態2と同様の効果を得ることができる。
なお、この発明は、その発明の範囲内において、各実施の形態を自由に組み合わせたり、各実施の形態を適宜、変形、省略することが可能である。
Claims (5)
- 四方弁には、一方のピストン室と他方のピストン室間に弁体を移動させるピストン機構を備え、
圧縮機の吐出圧力を前記四方弁の一方の前記ピストン室に作用させ、前記圧縮機の吸引圧力を前記四方弁の他方の前記ピストン室に作用させ、
前記ピストン室間の圧力差を利用して前記ピストン機構と共に前記弁体を移動させて、前記四方弁を切換動作させ、冷房運転と暖房運転とを切り換える車両用空気調和装置において、
前記圧縮機の吐出圧力に係わる冷媒又は吸引圧力に係わる冷媒を前記圧縮機の動作中に蓄積すると共に、前記四方弁の切換動作に必要な前記ピストン室間の圧力差を確保する圧力溜りを設け、
前記圧縮機の停止後においても前記四方弁の前記ピストン室間に前記四方弁の切換動作に必要な圧力差を発生させるようにしたことを特徴とする車両用空気調和装置。 - 前記圧力溜りは、前記圧縮機から吐出される冷媒の高圧圧力溜りであり、
前記高圧圧力溜りは、前記圧縮機から吐出された高圧冷媒を通す配管に、前記圧縮機からの冷媒を流通させる方向を流通方向とする逆止弁を介して接続されると共に、制御用電磁弁を経て一方又は他方の前記ピストン室に接続され、前記一方又は他方のピストン室に前記圧縮機からの高圧冷媒を供給するようにしたことを特徴とする請求項1記載の車両用空気調和装置。 - 前記圧力溜りは、前記圧縮機に吸引される冷媒の低圧圧力溜りであり、
前記低圧圧力溜りは、前記圧縮機に吸引される低圧冷媒を通す配管に、前記圧縮機に吸引される方向を流通方向とする逆止弁を介して接続されると共に、制御用電磁弁を経て一方又は他方の前記ピストン室に接続され、前記一方又は他方のピストン室から冷媒を吸引するようにしたことを特徴とする請求項1記載の車両用空気調和装置。 - 前記逆止弁は電磁弁である請求項2又は請求項3記載の車両用空気調和装置。
- 前記圧力溜りの容積は、一方又は他方の前記ピストン室の最大容積の1.5倍~3倍であることを特徴とする請求項1~請求項3のいずれか1項に記載の車両用空気調和装置。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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US14/435,658 US9909795B2 (en) | 2013-02-27 | 2013-02-27 | Vehicular air conditioner |
JP2015502619A JP5932131B2 (ja) | 2013-02-27 | 2013-02-27 | 車両用空気調和装置 |
PCT/JP2013/055073 WO2014132352A1 (ja) | 2013-02-27 | 2013-02-27 | 車両用空気調和装置 |
EP13876230.7A EP2963363B1 (en) | 2013-02-27 | 2013-02-27 | Vehicle air-conditioning device |
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PCT/JP2013/055073 WO2014132352A1 (ja) | 2013-02-27 | 2013-02-27 | 車両用空気調和装置 |
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WO2014132352A1 true WO2014132352A1 (ja) | 2014-09-04 |
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US (1) | US9909795B2 (ja) |
EP (1) | EP2963363B1 (ja) |
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WO2016199946A1 (ko) * | 2015-06-08 | 2016-12-15 | 삼성전자주식회사 | 공기 조화기 및 그 제어 방법 |
US10953725B2 (en) | 2018-09-14 | 2021-03-23 | Ford Global Technologies, Llc | Method and system for heating a vehicle |
CN111120690B (zh) * | 2018-10-31 | 2021-10-22 | 广东美芝精密制造有限公司 | 四通阀 |
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- 2013-02-27 JP JP2015502619A patent/JP5932131B2/ja not_active Expired - Fee Related
- 2013-02-27 EP EP13876230.7A patent/EP2963363B1/en not_active Not-in-force
- 2013-02-27 WO PCT/JP2013/055073 patent/WO2014132352A1/ja active Application Filing
- 2013-02-27 US US14/435,658 patent/US9909795B2/en active Active
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JPS61153355A (ja) * | 1984-12-27 | 1986-07-12 | 株式会社 鷺宮製作所 | 可逆冷凍サイクル用四方逆転弁 |
JPS61218883A (ja) * | 1985-03-25 | 1986-09-29 | Saginomiya Seisakusho Inc | 可逆冷凍サイクル用四方逆転弁 |
JPH05264113A (ja) | 1992-03-23 | 1993-10-12 | Daikin Ind Ltd | 空気調和装置の運転制御装置 |
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CN111412679A (zh) * | 2020-03-02 | 2020-07-14 | 珠海格力电器股份有限公司 | 四通阀、空调系统及其控制方法 |
CN111412679B (zh) * | 2020-03-02 | 2021-02-23 | 珠海格力电器股份有限公司 | 四通阀、空调系统及其控制方法 |
Also Published As
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JP5932131B2 (ja) | 2016-06-08 |
JPWO2014132352A1 (ja) | 2017-02-02 |
EP2963363B1 (en) | 2018-06-20 |
US20160010909A1 (en) | 2016-01-14 |
US9909795B2 (en) | 2018-03-06 |
EP2963363A4 (en) | 2017-03-08 |
EP2963363A1 (en) | 2016-01-06 |
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