WO2014136446A1 - Dispositif de climatisation pour véhicules - Google Patents

Dispositif de climatisation pour véhicules Download PDF

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Publication number
WO2014136446A1
WO2014136446A1 PCT/JP2014/001197 JP2014001197W WO2014136446A1 WO 2014136446 A1 WO2014136446 A1 WO 2014136446A1 JP 2014001197 W JP2014001197 W JP 2014001197W WO 2014136446 A1 WO2014136446 A1 WO 2014136446A1
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WO
WIPO (PCT)
Prior art keywords
refrigerant
passage
heat
evaporator
heat exchanger
Prior art date
Application number
PCT/JP2014/001197
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English (en)
Japanese (ja)
Inventor
勝志 谷口
圭俊 野田
智裕 寺田
健太朗 黒田
Original Assignee
パナソニック株式会社
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Filing date
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Application filed by パナソニック株式会社 filed Critical パナソニック株式会社
Publication of WO2014136446A1 publication Critical patent/WO2014136446A1/fr

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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
    • B60H1/00921—Controlling the flow of liquid in a heat pump system where the flow direction of the refrigerant does not change and there is an extra subcondenser, e.g. in an air duct
    • 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
    • B60H1/32—Cooling devices
    • B60H1/3204—Cooling devices using compression
    • B60H1/3228—Cooling devices using compression characterised by refrigerant circuit configurations
    • B60H1/32284—Cooling devices using compression characterised by refrigerant circuit configurations comprising two or more secondary circuits, e.g. at evaporator and condenser side
    • 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
    • B60H2001/00928—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 a secondary circuit

Definitions

  • the present invention relates to a vehicle air conditioner.
  • a secondary battery that supplies electric power to an electric motor for running a vehicle.
  • a heat generating component of a vehicle including an engine is generally cooled by blowing outside air or using a coolant and a radiator.
  • Non-Patent Document 1 proposes a vehicle air conditioner that generates hot water and cold water using a heat pump system and adjusts the temperature of the vehicle using the hot water and cold water.
  • Such an air conditioner includes a compressor, an outdoor condenser, and an evaporator disposed in an HVAC (heating, ventilation, and air conditioning) as a heat pump system for cooling.
  • HVAC heating, ventilation, and air conditioning
  • such an air conditioner includes a heater core that is disposed in the HVAC and allows the heated coolant to flow.
  • An object of the present invention is to provide a vehicle air conditioner that can appropriately adjust the temperature of a vehicle part that requires temperature adjustment while utilizing the configuration of a conventional general vehicle air conditioner. It is.
  • An air conditioner for a vehicle cools air sent to the vehicle interior by flowing a coolant temperature in a component temperature control passage through which coolant is exchanged with a component that requires temperature adjustment in the vehicle, and a heat pump refrigerant.
  • a possible evaporator, a first water refrigerant heat exchanger that exchanges heat between the low-temperature and low-pressure refrigerant of the heat pump and the coolant that passes through the component temperature adjustment passage, and the refrigerant of the heat pump, the evaporator and the Of the first water-refrigerant heat exchanger a configuration is provided that includes a first switching means capable of switching between a state of flowing only to the evaporator and a state of flowing to both.
  • the block diagram which shows the vehicle air conditioner of Embodiment 1 of this invention Chart explaining an example of component temperature adjustment control in the vehicle air conditioner according to Embodiment 1 The block diagram which shows the vehicle air conditioner of Embodiment 2 of this invention
  • the block diagram which shows the vehicle air conditioner of Embodiment 4 of this invention The block diagram which shows the modification of a refrigerant circuit in the vehicle air conditioner of embodiment of this invention
  • FIG. 1 is a configuration diagram showing a vehicle air conditioner according to Embodiment 1 of the present invention.
  • the vehicle air conditioner includes a compressor 38, an outdoor condenser 39, an expansion valve 37, an evaporator 48, a check valve 15, a heater core 44, a radiator 31, a battery temperature adjustment passage 34, and a motor temperature adjustment. Passage 35, temperature sensors 32 and 33, first to fourth solenoid valves 21 to 24, solenoid valve 13 for cooling / heating switching, sub-evaporator 11 as a first water refrigerant heat exchanger, and second water refrigerant heat exchanger as The sub-capacitor 12, the expansion valve 14, the water pumps 16 and 18, a coolant pipe and a refrigerant pipe connecting them, and a controller 36 are provided.
  • the compressor 38, the sub-condenser 12, the expansion valve 14, the sub-evaporator 11, and the refrigerant circuit that communicates these constitute a heat pump.
  • heat pump heat can be transferred from the sub-evaporator 11 to the sub-capacitor 12.
  • This refrigerant passage corresponds to a second refrigerant passage.
  • the compressor 38, the outdoor condenser 39, the expansion valve 37, the evaporator 48, and the refrigerant circuit that communicates these constitute a heat pump. Heat can be transferred from the evaporator 48 to the outdoor condenser 39 by the operation of the heat pump.
  • This refrigerant passage corresponds to a first refrigerant passage.
  • the refrigerant circuit passing through the evaporator 48 and the refrigerant circuit passing through the sub-evaporator 11 can be switched alternatively by the opening / closing control of the electromagnetic valve 13 and the second electromagnetic valve 22 so that the refrigerant can flow through only one of them. .
  • the refrigerant can be simultaneously supplied to both refrigerant circuits.
  • the compressor 38 is driven by electricity to compress the sucked refrigerant into a high temperature and high pressure and discharge it. If the vehicle is equipped with an engine, the compressor 38 may be driven by the power of the engine.
  • the outdoor condenser 39 has a passage through which high-temperature and high-pressure refrigerant flows and a passage through which air flows.
  • the outdoor condenser 39 is disposed near the top of the vehicle in the engine room, and discharges heat from the refrigerant to the outside air.
  • the outdoor condenser 39 is provided with a fan F ⁇ b> 2 for forcing air to the outdoor condenser 39 and the radiator 31.
  • the expansion valve 37 expands the high-pressure refrigerant to a low temperature and low pressure and discharges it to the evaporator 48.
  • the expansion valve 37 is disposed in the vicinity of the evaporator 48.
  • the evaporator 48 is a device that exchanges heat between the low-temperature and low-pressure refrigerant and the air, and is disposed in the intake passage of the HVAC 70.
  • the HVAC 70 is provided with a fan F1 through which intake air flows.
  • the evaporator 48 is supplied with a low-temperature and low-pressure refrigerant during the cooling operation or the dehumidifying operation, and cools the intake air supplied into the passenger compartment.
  • the check valve 15 is a valve that prevents the refrigerant from flowing back from the sub-evaporator 11 to the evaporator 48.
  • the sub-capacitor 12 has a passage through which a high-temperature and high-pressure refrigerant flows and a passage through which a cooling liquid flows. In a predetermined operation mode, the cooling liquid flows and performs heat exchange between the refrigerant and the cooling liquid. .
  • the expansion valve 14 expands the high-pressure refrigerant to a low temperature and low pressure and discharges it to the sub-evaporator 11.
  • the expansion valve 14 may be disposed close to the sub-evaporator 11.
  • the sub-evaporator 11 has a passage through which a low-temperature and low-pressure refrigerant flows and a passage through which a coolant flows, and performs heat exchange between the refrigerant and the coolant.
  • the sub-evaporator 11 is supplied with a low-temperature and low-pressure refrigerant in a predetermined operation mode to cool the coolant.
  • the electromagnetic valve 13 opens and closes a refrigerant circuit that passes through the outdoor condenser 39, the expansion valve 37, and the evaporator 48 by electrical control.
  • the second electromagnetic valve 22 opens and closes the refrigerant circuit passing through the expansion valve 14 and the sub-evaporator 11 by electrical control.
  • the battery temperature adjusting passage 34 allows a coolant to flow around a secondary battery (for example, a lithium ion secondary battery) 101 that supplies electric power for vehicle travel, and exchanges heat between the coolant and the secondary battery 101. It is a passage to be performed.
  • a secondary battery for example, a lithium ion secondary battery
  • the motor temperature adjustment passage 35 is a passage that allows a coolant to flow around the electric motor 102 for driving the vehicle and the power supply device 103 to exchange heat between the coolant and these.
  • the power supply device 103 is provided with, for example, a drive circuit (an inverter circuit, a DC-DC converter, etc.) for the electric motor 102 and a charger for the secondary battery 101.
  • the secondary battery 101 and the electric motor 102 are provided with temperature sensors 32 and 33, and a temperature detection signal is sent from the temperature sensors 32 and 33 to the control unit 36.
  • the heater core 44 is a device that exchanges heat between the coolant and air, and is disposed in the intake passage of the HVAC 70 that supplies air into the passenger compartment.
  • the heater core 44 is provided with a door 71 that is electrically controlled to be opened and closed, and the amount of intake air that flows according to the amount of opening and closing of the door 71 is adjusted.
  • the coolant heated between the sub-capacitor 12 is circulated through the heater core 44 in a predetermined operation mode to heat the intake air sent into the passenger compartment.
  • the water pump 16 is a pump that circulates the coolant between the sub capacitor 12 and the heater core 44 by, for example, electrical driving.
  • the water pump 18 is a pump that causes the coolant to flow through the sub-evaporator 11 by, for example, electrical driving.
  • the coolant is supplied to one or more of the battery temperature adjustment passage 34, the motor temperature adjustment passage 35, and the radiator 31 by opening and closing the first electromagnetic valve 21, the third electromagnetic valve 23, and the fourth electromagnetic valve 24. Washed away.
  • 1st solenoid valve 21, 3rd solenoid valve 23, 4th solenoid valve 24 opens and closes the circuit of the coolant which flows by water pump 18 by electrical control. Specifically, the water circuit passing through the battery temperature adjusting passage 34 is opened and closed by opening and closing the first solenoid valve 21, and the water circuit passing through the radiator 31 is opened and closed by opening and closing the third solenoid valve 23. The water circuit passing through the motor temperature adjustment passage 35 is opened and closed by opening and closing.
  • the first solenoid valve 21, the third solenoid valve 23, and the fourth solenoid valve 24 may be controlled to open at the same time two or three.
  • the coolant flows simultaneously in two or three open water circuits.
  • the coolant sent out by the water pump 18 branches after passing through the sub-evaporator 11 and branches to the battery temperature adjustment passage 34.
  • the coolant heated in the battery temperature adjustment passage 34 and the coolant cooled in the radiator 31 merge in the passage of the water pump 18 and the temperature is averaged. Therefore, the heat absorbed by the coolant in the battery temperature adjusting passage 34 can be released to the outside air by the radiator 31 by the flow of the coolant.
  • the control unit 36 receives the temperature detection signals of the temperature sensors 32 and 33, and outputs valve control signals for controlling the opening and closing of the first to fourth electromagnetic valves 21 to 24 and the electromagnetic valve 13.
  • the control unit 36 stores the current operation mode of the vehicle air conditioner.
  • configuration unit 10 The sub evaporator 11, the sub capacitor 12, the expansion valve 14, the water pump 18, and the second electromagnetic valve 22 are housed in a housing and integrated. This integrated configuration is referred to as a configuration unit 10 of the vehicle air conditioner.
  • the vehicle air conditioner of the first embodiment realizes the configuration of FIG. 1 and adds a new function to the conventional vehicle air conditioner by adding the configuration unit 10 and slightly changing the pipe connection. Can be added.
  • a conventional vehicle air conditioner the vehicle interior is cooled and dehumidified by a heat pump system, while the exhaust heat of each part of the electric heater or vehicle is transported to the heater core 44 by a coolant to heat the interior of the vehicle.
  • the compressor 38, the outdoor condenser 39, the expansion valve 37, and the evaporator 48 that constitute the conventional heat pump system, and the heater core 44 that is the conventional heating configuration are not changed in structure, but the first embodiment. Can be used as a configuration.
  • the constituent unit 10 may include a water pump 16 and a solenoid valve 13. Further, the water pump 18 may be excluded from the configuration unit 10 and provided outside the configuration unit 10.
  • heating mode In the heating mode, the solenoid valve 13 is closed, the second solenoid valve 22 is opened, the water pump 16 is turned off, the water pump 18 is turned on, and the compressor 38 is turned on. In addition, at least one of the first solenoid valve 21, the third solenoid valve 23, and the fourth solenoid valve 24 is opened.
  • the refrigerant flows through the refrigerant circuit including the sub-evaporator 11 and the sub-condenser 12, and heat is transferred from the sub-evaporator 11 to the sub-condenser 12 by the action of the heat pump.
  • the cooling fluid which circulates through the sub capacitor
  • the coolant flowing through the sub-evaporator 11 flows into any one of the battery temperature adjustment passage 34, the motor temperature adjustment passage 35, and the radiator 31, absorbs heat, and performs heat exchange with the low-temperature and low-pressure refrigerant in the sub-evaporator 11. Evaporate the refrigerant.
  • the refrigerant By switching the electromagnetic valve 13, in addition to the flow of the refrigerant in the heating mode, the refrigerant also flows in this order through the compressor 38, the outdoor condenser 39, the expansion valve 37, and the evaporator 48.
  • the low-temperature and low-pressure refrigerant flows through the evaporator 48 by this refrigerant flow, and the intake air sent into the passenger compartment can be dehumidified.
  • the refrigerant flows through the refrigerant circuit including the outdoor condenser 39 and the evaporator 48, and heat is transferred from the evaporator 48 to the outdoor condenser 39. Then, the intake air sent into the vehicle interior is cooled by the evaporator 48, and the vehicle interior is cooled.
  • FIG. 2 is a chart for explaining an example of the component temperature adjustment control.
  • control unit 36 performs temperature adjustment control of the secondary battery 101, the electric motor 102, and the like in parallel with the air conditioning control in the vehicle interior described above.
  • the control unit 36 if the temperature of the secondary battery 101 (referred to as “battery temperature”) is lower than a predetermined cooling start temperature (for example, 40 ° C.), the control unit 36 The first electromagnetic valve 21 is closed and no coolant flows through the battery temperature adjustment passage 34.
  • a predetermined cooling start temperature for example, 40 ° C.
  • a predetermined cooling start temperature which may be a temperature different from the battery cooling start temperature.
  • the control unit 36 closes the fourth electromagnetic valve 24 and does not allow the coolant to flow through the motor temperature adjustment passage 35.
  • the control unit 36 opens the first electromagnetic valve 21 and causes the coolant to flow through the battery temperature adjustment passage 34.
  • the control unit 36 closes the second electromagnetic valve 22 and opens the third electromagnetic valve 23 as shown in the third row of the table.
  • the coolant in the chilled water circuit flows into the battery temperature adjusting passage 34 and the radiator 31 to cool the secondary battery 101.
  • the heat absorbed by the coolant is discharged to the outside air by the radiator 31. If the outside air temperature is not high enough to require cooling, the secondary battery 101 can be sufficiently cooled by the exhaust heat of the radiator 31.
  • the control unit 36 opens the second electromagnetic valve 22, closes the third electromagnetic valve 23, and closes the electromagnetic valve 13.
  • the compressor 38 is operated, and the refrigerant of the heat pump can be switched to the state of flowing only to the sub-evaporator 11 without flowing to the evaporator 48 of the evaporator 48 and the sub-evaporator 11. In this way, instead of cooling the secondary battery 101 with the exhaust heat of the radiator 31, the heat absorbed by the coolant is recovered by the sub-evaporator 11 into the low-temperature refrigerant. Can be cooled to.
  • the control unit 36 opens the electromagnetic valve 13, opens the second electromagnetic valve 22, 3
  • the solenoid valve 23 is closed.
  • the sub-evaporator 11 is cooled by the heat pump action, and the coolant in the chilled water circuit flows into the sub-evaporator 11 and the battery temperature adjustment passage 34, thereby cooling the secondary battery 101. Since the heat absorbed by the coolant is recovered by the sub-evaporator 11 as a low-temperature refrigerant, the secondary battery 101 can be reliably cooled even when the outside air is hot.
  • the control unit 36 opens the fourth electromagnetic valve 24 and causes the coolant to flow through the motor temperature adjustment passage 35 as shown in the fifth and sixth rows of the table of FIG.
  • the control unit 36 closes the second electromagnetic valve 22 and opens the third electromagnetic valve 23 as shown in the fifth row of the table.
  • the coolant in the chilled water circuit flows into the motor temperature adjustment passage 35 and the radiator 31 to cool the electric motor 102 and the like.
  • the heat absorbed by the coolant is discharged to the outside air by the radiator 31. If the outside air temperature is not high enough to require cooling, the electric motor 102 and the like can be sufficiently cooled by the exhaust heat of the radiator 31.
  • the control unit 36 opens the second electromagnetic valve 22 and closes the third electromagnetic valve 23 as shown in the sixth row of the table. And As a result, the sub-evaporator 11 is cooled by the heat pump, and the coolant in the chilled water circuit flows through the sub-evaporator 11 and the motor temperature adjustment passage 35, thereby cooling the electric motor 102 and the like. Since the heat absorbed by the coolant is recovered by the sub-evaporator 11 as a low-temperature refrigerant, the electric motor 102 can be reliably cooled even when the outside air is hot.
  • whether the coolant 31 is exhausted by the radiator 31 or the sub-evaporator 11 is not limited to the method of switching based on the operation mode of the air conditioning.
  • the temperature of the coolant, the temperature of the component to be cooled, the outside You may make it switch based on air temperature or the conditions which compounded these.
  • FIG. 3 is a configuration diagram showing a vehicle air conditioner according to Embodiment 2 of the present invention.
  • the vehicular air conditioner of the second embodiment is further provided with coolant branch pipes 51, 52, a three-way valve 53, and electromagnetic valves 54, 55.
  • coolant branch pipes 51, 52 a three-way valve 53
  • electromagnetic valves 54, 55 electromagnetic valves 54, 55.
  • the branch pipes 51 and 52 are provided so as to branch from the pipe connecting the sub-capacitor 12 and the heater core 44 and merge with the inlet pipe and the outlet pipe of the radiator 31, respectively.
  • the three-way valve 53 switches whether the coolant sent from the water pump 16 flows through the branch pipe 51 or the heater core 44 by electrical control.
  • the electromagnetic valve 54 is a valve that opens and closes the circuit of the coolant passing through the branch pipes 51 and 52, and the electromagnetic valve 55 is a valve that opens and closes the passage of the coolant flowing through the sub-evaporator 11.
  • the same operation as that of the first embodiment can be obtained by not flowing the coolant through the passages of the branch pipes 51 and 52.
  • the flow of hot water and cold water indicated by arrows in FIG. 3 can be realized by switching the three-way valve 53 and the electromagnetic valves 54 and 55. That is, the coolant heated by the sub-capacitor 12 by the action of the heat pump flows to the radiator 31 to dissipate heat, and the coolant cooled by the sub-evaporator 11 flows to the battery temperature adjustment passage 34 or the motor temperature adjustment passage 35. These can be cooled.
  • FIG. 4 is a configuration diagram showing a vehicle air conditioner according to Embodiment 3 of the present invention.
  • the vehicle air conditioner of Embodiment 3 is configured so that the secondary battery 101 can be warmed with hot water when the secondary battery 101 becomes too cold.
  • the vehicular air conditioner of the third embodiment includes branch pipes 61 and 62 for coolant, a three-way valve 63, and an electromagnetic valve 64.
  • branch pipes 61 and 62 for coolant for coolant
  • a three-way valve 63 for coolant
  • an electromagnetic valve 64 for electromagnetic valve.
  • the branch pipes 61 and 62 are provided so as to branch from the pipe connecting the sub capacitor 12 and the heater core 44 and to merge with the inlet pipe and the outlet pipe of the battery temperature adjusting passage, respectively.
  • the three-way valve 63 and the electromagnetic valve 64 are valves for diverting the coolant to the branch pipes 61 and 62.
  • the same operation as that of the first embodiment can be obtained by not flowing the coolant through the passages of the branch pipes 61 and 62.
  • the three-way valve 63 and the electromagnetic valve 64 are switched so that the coolant flows into the passages of the branch pipes 61 and 62 in the heating mode, and the first electromagnetic valve 21 is switched.
  • the hot water supplied to the heater core 44 can flow through the battery temperature adjustment passage 34.
  • the configuration for guiding the coolant heated from the sub-capacitor 12 to the battery temperature adjusting passage 34 can be variously changed.
  • the cooling battery temperature adjustment passage 34 and the heating battery temperature adjustment passage are provided separately, and the cooling liquid heated independently of the cooled cooling liquid is guided to the secondary battery 101. Also good.
  • the vehicle parts to be heated are not limited to the secondary battery 101, and may include other parts such as the electric motor 102 and the power supply device 103.
  • FIG. 5 is a block diagram showing a vehicle air conditioner according to Embodiment 4 of the present invention.
  • the vehicle air conditioner according to the fourth embodiment is configured to cope with the case where the sub-evaporator 11 cannot sufficiently cool the coolant.
  • the heat radiation amount of the secondary battery 101 is large, it may be difficult to cool the coolant in the sub-evaporator 11.
  • the vehicle air conditioner of the fourth embodiment includes a refrigerant branch pipe 46 and an electromagnetic valve 47.
  • the same components as those in the first embodiment are denoted by the same reference numerals and detailed description thereof is omitted.
  • the branch pipe 46 is branched from the outlet side pipe of the outdoor capacitor 39 and is provided so as to join the inlet side pipe of the expansion valve 14.
  • the electromagnetic valve 47 is a valve that opens and closes the passage of the branch pipe 46.
  • the same operation as that of the first embodiment can be obtained by closing the electromagnetic valve 47 and not flowing the refrigerant through the branch pipe 46.
  • the second electromagnetic valve 22 is opened, and in the operation mode in which part or all of the refrigerant that has passed through the sub-capacitor 12 flows to the sub-evaporator 11 side.
  • the efficiency of the heat pump is reduced.
  • the efficiency of the heat pump can be improved by closing the second electromagnetic valve 22 and opening the added electromagnetic valve 47. That is, by these switching operations, the refrigerant that has flowed directly from the sub-capacitor 12 to the sub-evaporator 11 side passes through the outdoor capacitor 39 and is then sent to the sub-evaporator 11 side.
  • This refrigerant passage corresponds to a third refrigerant passage. Therefore, even if the heat dissipation amount of the sub-capacitor 12 decreases, the outdoor capacitor 39 sufficiently performs heat dissipation and refrigerant condensation, and the condensed refrigerant is sent to the sub-evaporator 11 side. Therefore, according to the vehicle air conditioner of the fourth embodiment, it is possible to avoid a decrease in the efficiency of the heat pump.
  • the refrigerant circuit in which the refrigerant discharged from the compressor 38 is sent to the outdoor condenser 39 via the sub condenser 12 during the cooling operation or the dehumidifying operation is shown. Not limited to configuration.
  • FIG. 6 shows a modification of the refrigerant circuit of the vehicle air conditioner according to the embodiment.
  • the refrigerant circuit of FIG. 6 branches the refrigerant pipe at the discharge port of the compressor 38 and sends the refrigerant from the compressor 38 to the sub-capacitor 12 and sends the refrigerant from the compressor 38 to the outdoor capacitor 39 without passing through the sub-capacitor 12. Path.
  • the refrigerant circuit of FIG. 6 has electromagnetic valves 13 and 17 for switching whether the refrigerant discharged from the compressor 38 is sent to the sub capacitor 12 or the outdoor capacitor 39.
  • the refrigerant circuit of Embodiments 1 to 3 can be changed to the refrigerant circuit of FIG. Further, in the refrigerant circuit of the fourth embodiment, the connection form of the compressor 38, the sub capacitor 12, and the outdoor condenser 39 via the refrigerant pipe can be changed to the connection form of the refrigerant circuit of FIG.
  • one of the second electromagnetic valve 22 and the electromagnetic valve 17 may be omitted.
  • the coolant flowing through the sub-capacitor 12 and the heater core 44 and the coolant flowing through the sub-evaporator 11 do not cross each other has been shown.
  • the coolant may be configured to flow through the passages that take in the exhaust heat into the coolant, such as the motor temperature adjustment passage 35, the sub condenser 12, the heater core 44, and the sub evaporator 11.
  • the order in which the coolant flows through these configurations may be the order in which the sub-capacitor 12, the heater core 44, and the sub-evaporator 11 are arranged, such as the passage for taking in the exhaust heat into the coolant, such as the motor temperature adjustment passage 35. You may make it pass each structure in the order different from an arrangement order.
  • the configuration using the solenoid valve and the check valve is exemplified as means for switching the refrigerant circuit, but a three-way valve may be used.
  • the valve is not limited to a solenoid valve, and a valve that opens and closes mechanically, such as an electrical or hydraulic valve, may be applied.
  • the solenoid valve 13 and the second solenoid valve 22 can be configured as an integral solenoid valve.
  • the configuration using the electromagnetic valve as the means for switching the flow of the coolant has been exemplified, but a mechanically opened / closed valve such as an electrical or hydraulic valve may be applied.
  • a water pump may be provided for each path, and the path through which the coolant flows may be switched by turning on / off the water pump.
  • the secondary battery, the electric motor, and the power supply device are exemplified as the vehicle parts that require temperature adjustment.
  • an engine internal combustion engine
  • an engine internal combustion engine
  • the present invention can be used in a vehicle air conditioner that is mounted on a vehicle and adjusts the air in the passenger compartment.

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  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

L'invention concerne un dispositif de climatisation pour véhicules, qui est capable d'appliquer la configuration pour des dispositifs de climatisation de véhicule généraux classiques et d'exécuter un ajustement de température approprié des composants de véhicule nécessitant un ajustement de température. Le dispositif de climatisation de véhicule a une configuration comprenant : une trajectoire d'ajustement de température de composant qui amène un fluide de refroidissement à s'écouler de telle sorte qu'un échange de chaleur est possible avec des composants nécessitant un ajustement de température dans un véhicule ; un évaporateur ayant un réfrigérant de pompe à chaleur s'écoulant à travers celui-ci, et capable de refroidir l'air fourni dans le compartiment de véhicule ; un premier échangeur de chaleur eau-réfrigérant ayant un réfrigérant de pompe à chaleur à basse température et basse pression s'écoulant à travers celui-ci et un fluide de refroidissement qui passe à travers la trajectoire d'ajustement de température de composant, et qui les amène à échanger mutuellement de la chaleur ; et un premier moyen de commutation capable de commuter entre un état, dans lequel un réfrigérant de pompe à chaleur est amené à s'écouler uniquement vers l'évaporateur, hors de l'évaporateur et du premier échangeur de chaleur eau-réfrigérant, et un état dans lequel le réfrigérant de pompe à chaleur est amené à s'écouler vers les deux.
PCT/JP2014/001197 2013-03-06 2014-03-04 Dispositif de climatisation pour véhicules WO2014136446A1 (fr)

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JP2013-044151 2013-03-06
JP2013044151 2013-03-06

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3027557A1 (fr) * 2014-10-24 2016-04-29 Renault Sa Dispositif de regulation thermique de l'air de l'habitacle et de composants d'un vehicule automobile propulse totalement ou partiellement par un moteur electrique
WO2019026528A1 (fr) * 2017-07-31 2019-02-07 株式会社デンソー Dispositif de climatisation
JP2019119437A (ja) * 2018-01-10 2019-07-22 株式会社デンソー 車両用冷却システム
CN111251809A (zh) * 2018-11-30 2020-06-09 比亚迪股份有限公司 车辆的热管理***及车辆
CN111845250A (zh) * 2019-04-25 2020-10-30 现代自动车株式会社 车辆的空调装置
JP7481309B2 (ja) 2021-10-25 2024-05-10 トヨタ自動車株式会社 車両および車両の制御方法

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CN111251809A (zh) * 2018-11-30 2020-06-09 比亚迪股份有限公司 车辆的热管理***及车辆
CN111251809B (zh) * 2018-11-30 2022-07-19 比亚迪股份有限公司 车辆的热管理***及车辆
CN111845250A (zh) * 2019-04-25 2020-10-30 现代自动车株式会社 车辆的空调装置
JP7481309B2 (ja) 2021-10-25 2024-05-10 トヨタ自動車株式会社 車両および車両の制御方法

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