WO2023090084A1 - Climatiseur de véhicule - Google Patents

Climatiseur de véhicule Download PDF

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Publication number
WO2023090084A1
WO2023090084A1 PCT/JP2022/039800 JP2022039800W WO2023090084A1 WO 2023090084 A1 WO2023090084 A1 WO 2023090084A1 JP 2022039800 W JP2022039800 W JP 2022039800W WO 2023090084 A1 WO2023090084 A1 WO 2023090084A1
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WO
WIPO (PCT)
Prior art keywords
air
heat
flow path
vehicle
heat medium
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Application number
PCT/JP2022/039800
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English (en)
Japanese (ja)
Inventor
尭之 松村
徹也 石関
真一 増田
宏太 寺内
Original Assignee
サンデン株式会社
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 サンデン株式会社 filed Critical サンデン株式会社
Priority to CN202280074778.XA priority Critical patent/CN118251323A/zh
Publication of WO2023090084A1 publication Critical patent/WO2023090084A1/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
    • B60H1/22—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625—Vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6561—Gases
    • H01M10/6563—Gases with forced flow, e.g. by blowers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/66—Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells
    • H01M10/663—Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells the system being an air-conditioner or an engine

Definitions

  • the present invention relates to a vehicle air conditioner that is applied to a vehicle, and more particularly to a vehicle air conditioner that utilizes waste heat from batteries, motors, etc. for air conditioning, etc., and adjusts the temperature of these.
  • cooling water that exchanges heat with the battery is flowed into the radiator to exchange heat with the outside air to dissipate heat, and is flowed into the heater core of the air conditioner to exchange heat with the air blown into the vehicle for heating. heat source.
  • the cooling water that exchanges heat with the battery is heat-exchanged with the inverter and the motor, and the battery is heated with the waste heat of the inverter and the motor.
  • the cooling water circulation path is switched to use the heat of the battery and the waste heat of the inverter and the motor as heat sources for heating.
  • Patent Document 1 it is possible to perform heating operation of the air conditioner using the waste heat of the in-vehicle equipment. It has not been. If the cooling operation is performed in a state in which the heat radiation of the heater core always heats the air in the passenger compartment, there arises a problem that the heat radiation of the heater core cannot sufficiently lower the indoor temperature. In addition, there is a demand for supercooling the battery, etc. in the temperature control demand of the on-vehicle equipment. has problems that cannot be addressed.
  • the present invention has been made in view of such circumstances. It is an object of the present invention to make it possible to cope with the demand for supercooling of the on-vehicle equipment in an air conditioner utilizing the waste heat of the on-vehicle equipment.
  • One aspect of the present invention is to circulate a heat medium in series with a plurality of in-vehicle devices via an indoor air conditioning unit including a heat absorbing heat exchange section and a heat exchanging heat exchanging section for heat radiating, and the heat exchanging heat exchanger for radiating heat. and a controller for controlling the indoor air conditioning unit and the heat medium circuit, wherein the indoor air conditioning unit includes the heat absorbing heat a plurality of airflow passages that selectively pass through the exchanging portion and the heat exchange portion for heat radiation, and an airflow passage selection portion that selects one or more of the plurality of airflow passages, wherein the control provides a vehicular air conditioner characterized by controlling at least the selection of the air flow path by the air flow path selection section.
  • the present invention when performing air conditioning using waste heat of on-vehicle equipment, it is possible to respond to the cooling and temperature control requirements of on-vehicle equipment not only during heating operation but also during cooling operation. In an air conditioner using waste heat of equipment, it is possible to cope with a request for supercooling of in-vehicle equipment.
  • FIG. 1 is a block diagram showing a schematic configuration of an air conditioning ECU that controls a vehicle air conditioner according to an embodiment of the present invention
  • FIG. FIG. 4 is a diagram showing a state in which the vehicle air conditioner according to the embodiment of the present invention cools the battery and the motor while performing cooling operation
  • FIG. 4 is a diagram showing a state in which the vehicle air conditioner according to the embodiment of the present invention cools the battery and the motor while performing cooling operation
  • FIG. 4 is a diagram showing a state in which the vehicle air conditioner according to the embodiment of the present invention cools the battery and the motor while performing cooling operation
  • FIG. 4 is a diagram showing a state in which the vehicle air conditioner according to the embodiment of the present invention cools the battery and the motor while performing cooling operation
  • FIG. 1 is a block diagram showing a schematic configuration of an air conditioning ECU that controls a vehicle air conditioner according to an embodiment of the present invention
  • FIG. 4 is a diagram showing a state in which the vehicle air conditioner according to the embodiment of the present invention cools the
  • FIG. 4 is a diagram showing a state in which the vehicle air conditioner according to the embodiment of the present invention cools the battery and the motor while performing cooling operation;
  • FIG. 4 is a diagram showing a state in which the vehicle air conditioner according to the embodiment of the present invention cools the battery and the motor while performing heating operation;
  • FIG. 4 is a diagram showing a state in which the vehicle air conditioner according to the embodiment of the present invention cools the battery and the motor while performing heating operation;
  • FIG. 4 is a diagram showing a state in which the vehicle air conditioner according to the embodiment of the present invention heats the battery and the motor while performing the heating operation.
  • FIG. 4 is a diagram showing a state in which the vehicle air conditioner according to the embodiment of the present invention heats the battery and the motor while performing the heating operation.
  • FIG. 4 is a diagram showing a state in which the vehicle air conditioner according to the embodiment of the present invention heats the battery and the motor while performing the heating operation.
  • FIG. 4 is a diagram showing a state in which the vehicle air conditioner according to the embodiment of the present invention heats the battery and cools the motor while performing heating operation;
  • FIG. 4 is a diagram showing a state in which the vehicle air conditioner according to the embodiment of the present invention heats the battery and cools the motor while performing heating operation;
  • FIG. 4 is a diagram showing a state in which the battery is rapidly cooled in the vehicle air conditioner according to the embodiment of the present invention;
  • FIG. 4 is a diagram showing a state in which the battery is rapidly heated in the vehicle air conditioner according to the embodiment of the present invention;
  • refrigerant refers to a circulating medium in a refrigerant circuit that undergoes state changes in a heat pump (compression, condensation, expansion, evaporation), and the term “heat medium” refers to heat exchange without such state changes. It is a medium (including water, etc.) that absorbs and radiates heat by
  • a vehicle air conditioner according to an embodiment of the present invention is applied to a vehicle such as an electric vehicle (EV) that is not equipped with an engine (internal combustion engine) or a so-called hybrid vehicle that shares an engine and an electric motor for driving. be able to.
  • a vehicle such as an electric vehicle (EV) that is not equipped with an engine (internal combustion engine) or a so-called hybrid vehicle that shares an engine and an electric motor for driving.
  • a vehicle is equipped with a battery (for example, a lithium battery), and converts DC power charged in the battery from an external power source into AC power by an inverter and supplies the power to a motor unit including a motor for running. to drive the motor.
  • the vehicle air conditioner 1 is also driven by electric power supplied from the battery.
  • a vehicle air conditioner 1 includes a refrigerant circuit R and an indoor air conditioning unit 10 that forms a flow passage for air that exchanges heat with the refrigerant circulating in the refrigerant circuit R.
  • the refrigerant circuit R is a circuit that compresses, condenses, expands, and evaporates the circulating refrigerant, and includes a compressor that compresses the refrigerant, and a refrigerant circulation flow that condenses, expands, and evaporates the refrigerant discharged from the compressor and returns it to the compressor. has a road.
  • the vehicle air conditioner 1 performs a heat pump operation using the refrigerant circuit R, and supplies air that has been heat-exchanged with the refrigerant by the indoor air conditioning unit 10 to air the vehicle interior (heating, cooling, dehumidification, and dehumidification). frost).
  • the indoor air-conditioning unit 10 includes an air flow passage 20 for blowing wind (air) taken in from inside and outside the vehicle into the vehicle interior, a cooler core 30 as an endothermic heat exchange section provided upstream of the air flow passage 20, and a heater core 40 as a heat exchanging portion for heat dissipation provided on the downstream side of the air flow path 20 .
  • a suction port 25 including an outside air suction port and an inside air suction port is provided on the most upstream side of the air flow passage 20, and a suction switching damper 26 provided in the suction port 25 is provided.
  • the intake switching damper 26 appropriately switches between inside air (inside air circulation), which is the air inside the vehicle, and outside air (outside air introduction), which is the air outside the vehicle, and introduces the air into the airflow passage 20 from the suction port 25 .
  • the airflow path 20 includes a first airflow path 21 that supplies the air taken into the airflow path 20 into the vehicle interior without passing through the heater core 40, and a first airflow path 21 that passes the air through the heater core 40 and distributes it inside and outside the vehicle. and a third airflow passage 23 that takes in outside air without passing through the cooler core 30 and passes it through the heater core 40 .
  • An air mix damper 28 is provided in the air flow path 20 downstream of the cooler core 30 and upstream of the heater core 40 .
  • the air mix damper 28 controls the degree of opening of the air mix damper 28 so that the air (inside air or outside air) in the air flow path 20 after passing through the cooler core 30 is transferred to the first air flow path 21 or the second air flow path 22. Switching is performed so as to circulate in either direction, or the proportion of ventilation in the first air flow path 21 and the second air flow path 22 is adjusted.
  • an external air outlet 50 for blowing the air that has passed through the heater core 40 out of the vehicle is provided on the downstream side of the heater core 40 in the airflow passage 20.
  • the external blowout port 50 is provided with a blowout damper 51 that opens and closes the external blowout port 50 .
  • By opening and closing the blowout damper 51 it is possible to selectively control the air to be discharged from the external blowout port 50 to the outside of the vehicle or to be blown into the vehicle interior from the vehicle interior blowout port 29. That is, by opening the blowout damper 51, the vehicle exterior discharge passage 52 is selected, and by closing the blowout damper 51, the vehicle interior airflow passage 53 is selected.
  • a PTC heater 54 for auxiliary heating of the air blown into the vehicle interior is provided in the vehicle interior air flow path 53 .
  • an outside air introduction port 63 is provided on the air flow path upstream side of the heater core 40 (in the present embodiment, the air flow path upstream side of the second air flow path 22 of the heater core 40),
  • An outside air introduction passage 60 for introducing outside air is provided via an outside air introduction port 63 .
  • Outside air introduced from the outside air intake port 61 and the outside air intake port 61 is passed through the inside of the outside air introduction channel 60 and supplied to the inside of the second ventilation channel 22 on the upstream side of the outside air introduction channel 60 .
  • An outside air introduction fan 62 is provided for this purpose.
  • the air flow path downstream side of the outside air introduction flow path 60 is connected to the outside air introduction port 63 located on the air flow path upstream side of the heater core 40 in the second air flow path 22 .
  • the outside air introduction port 63 is provided with an outside air introduction damper 64 that switches whether to introduce outside air or not.
  • the outside air introduction passage 60 supplies the air taken in from the outside air suction port 61 to the second blowing passage 22 through the outside air introduction port 63 by the outside air introduction fan 62 when the outside air introduction damper 64 is open. That is, the outside air introduction channel 60 feeds the outside air to the second airflow channel 22 without passing through the cooler core 30 .
  • the outside air introduction flow path 60 is externally attached to the indoor air conditioning unit.
  • the cooler core 30 constitutes a part of the refrigerant circuit R, and is a heat exchanger that exchanges heat between the refrigerant flowing from the refrigerant circuit R and the wind (air) passing through the air flow path 20 .
  • the refrigerant that circulates in the refrigerant circuit R and flows into the cooler core 30 is heat-exchanged (heat is absorbed by the refrigerant) with the air that is taken into the airflow passage 20 from the outside of the vehicle compartment. cools the air supplied to the interior of the vehicle.
  • the heater core 40 constitutes a part of a device temperature adjustment circuit 80 (described later) as a heat medium circuit, and heat exchanges between the heat medium circulating in the device temperature adjustment circuit 80 and the air passing through the heater core 40, This is a heat exchanger that recovers waste heat from in-vehicle equipment.
  • the heat medium and the air are heat-exchanged, and the heat medium after the heat exchange is returned to the device temperature control circuit 80, so that the temperature of the vehicle-mounted device, which is the temperature control object of the device temperature control circuit 80, is reduced. While adjusting, the air heated by absorbing heat from the heat medium is sent inside and outside the vehicle.
  • the equipment temperature adjustment circuit 80 directly or indirectly circulates the heat medium in the in-vehicle equipment such as the battery, inverter, motor, and power control unit to adjust the temperature thereof. As shown in FIG. 1, in this embodiment, the device temperature adjustment circuit 80 adjusts the temperature of the battery 84 and the motor 85, as an example.
  • the equipment temperature adjustment circuit 80 includes a first circulation pump 81 that circulates the heat medium in the equipment temperature adjustment circuit 80, a heater 82 that serves as an auxiliary heating device that heats the heat medium, a tank 83 that stores the heat medium, and a battery 84.
  • the motor 85, the solenoid valve 86A provided between the battery 84 and the motor 85, and the solenoid valve 86B provided between the motor 85 and the first circulation pump 81 are connected by the heat medium flow path 87 to the heater core. 40 are connected in series.
  • the heat medium flow path 87 includes a bypass flow path 88A through which the heat medium flowing out of the battery 84 flows into the first circulation pump 81, and a bypass flow path 88A through which the heat medium flowing out of the heater core 40 flows into the first circulation pump 81 without passing through the battery 84 and the motor 85.
  • a bypass flow path 88B is provided to flow into the 1 circulation pump 81 .
  • a solenoid valve 86C is provided in the bypass channel 88A, and a solenoid valve 86D is provided in the bypass channel 88B.
  • An independent flow path 90 that connects the inflow side and the outflow side of the motor 85 and adjusts the temperature of the motor 85 independently is connected to the heat medium flow path 87 .
  • the independent flow path 90 is provided with an electromagnetic valve 91 , a second circulation pump 92 , and a radiator 93 as a heat exchange section that radiates the heat of the heat medium circulating through the independent flow path 90 .
  • the heat medium passing through at least one of the battery 84 and the motor 85 passes through the heater core 40, and the air passing through the heater core 40 passes through at least one of the battery 84 and the motor 85. It is configured to perform heat exchange with the heat medium.
  • the independent flow path 90 is configured such that the heat medium passing through the motor 85 passes through the radiator 93 , and the air passing through the radiator 93 and the heat medium passing through the motor 85 exchange heat.
  • the heat medium used in the device temperature adjustment circuit 80 and the independent flow path 90 for example, water, oil, refrigerants such as HFO-1234yf, liquids such as coolant, and gases such as air can be employed.
  • the heat medium circulating in the device temperature adjustment circuit 80 directly circulates inside the battery 84 and the motor 85 to adjust the temperature of the object to be temperature-controlled.
  • a heat medium is circulated through a temperature control object heat exchanger provided in a battery 84 and a motor 85, and the battery 84 and the motor 85 are supplied via the temperature control object heat exchanger. can be configured to adjust the temperature of the
  • the heat medium circulating through the independent flow path 90 directly circulates inside the motor 85 to adjust the temperature of the object to be temperature controlled.
  • the temperature of the motor 85 is adjusted by circulating the heat medium through the heat exchanger for temperature control object provided in the motor 85, and adjusting the temperature of the motor 85 via the heat exchanger for temperature control object.
  • FIG. 2 shows a schematic configuration of an air conditioning ECU 100 as a control unit of the vehicle air conditioner 1.
  • the air-conditioning ECU 100 is communicatively connected to a vehicle controller 95, which controls the entire vehicle including running, via an in-vehicle network such as CAN (Controller Area Network) or LIN (Local Interconnect Network), and transmits and receives information.
  • a microcomputer which is an example of a computer having a processor, can be applied to both the air conditioning ECU 100 and the vehicle controller 95 .
  • the following sensors and detectors are connected to the air conditioning ECU 100, and the outputs of these sensors and detectors are input.
  • FIG. 2 and the following description the description and description of sensors and detectors that are not directly related to this embodiment are omitted.
  • the air conditioning ECU 100 includes an outside air temperature sensor 71 that detects the outside air temperature Tam of the vehicle, an HVAC intake temperature sensor 72 that detects the temperature of the air sucked into the air flow path 20 from the air intake 25, and an air temperature sensor 72 that detects the temperature of the air in the vehicle interior.
  • An inside air temperature sensor 73 that detects the temperature Tin
  • an air outlet temperature sensor 74 that detects the temperature of the air blown into the passenger compartment from the passenger compartment air outlet 29, a heater core temperature sensor 75 that detects the temperature TCI of the heater core 40, a cooler A cooler core temperature sensor 76 that detects the temperature Te of the core 30, a cooler core pressure sensor 77 that detects the refrigerant pressure of the cooler core 30, and a heat medium temperature sensor 78 that detects the temperature Tw of the heat medium circulating in the device temperature adjustment circuit 80.
  • an air conditioning operation unit 79 for setting the set temperature and switching the air conditioning operation.
  • the outputs of the air conditioning ECU 100 include the intake switching damper 26, the blower fan 27, the air mix damper 28, the blowout damper 51, the outside air introduction fan 62, the outside air introduction damper 64, the first circulation pump 81, the heater 82, the solenoid valves 86A. 86D, 91 and a second circulation pump 92 are connected.
  • the air-conditioning ECU 100 controls these based on the output of each sensor, the setting input by the air-conditioning operation unit 79 , and the information from the vehicle controller 95 .
  • the air conditioning ECU 100 in this embodiment controls the intake switching damper 26, the blow damper 51, the outside air introduction damper 64, and the air mix damper 28 to adjust the opening and opening/closing of the first air flow path 21 and the second air flow path.
  • One or more of the air flow path 22 and the third air flow path 23 is selected.
  • the vehicle exterior discharge flow path 52 for discharging the wind that has passed through the heater core 40 to the outside of the vehicle and the vehicle interior air flow path 53 for blowing the air into the vehicle interior are provided.
  • the vehicle exterior discharge channel 52 or the vehicle interior air flow channel 53 can be selected.
  • the waste heat of the battery 84 and the motor 85 can be used by the heat medium circulating in the device temperature adjustment circuit 80 to heat the vehicle. It air-conditions the room and adjusts the temperatures of the battery 84 and the motor 85 . Also, the temperature of the motor 85 is adjusted by circulating the heat medium in the independent flow path 90 . again,
  • FIGS. 3 to 6 show the state of the vehicle air conditioner 1 during cooling operation. An example of the operation during the cooling operation will be described below.
  • FIG. 3 shows the state of the vehicle air conditioner 1 that cools the battery 84 and the motor 85 while performing cooling operation.
  • the air conditioning ECU 100 controls the air mix damper 28 to select the first air flow path 21 . That is, the second air flow path 22 is blocked and all the air that has passed through the cooler core 30 is allowed to flow into the first air flow path 21 .
  • the air conditioning ECU 100 controls the outside air introduction damper 64 to be in an open state, opens the outside air introduction port 63, and introduces outside air from the outside air introduction passage 60, thereby taking in the outside air and passing it through the heater core 40.
  • the 3rd air flow path 23 is selected.
  • the air conditioning ECU 100 selects the outside discharge passage 52 by controlling the blow damper 51 to open the external blowout port 50 . As a result, in the vehicle air conditioner 1 , the outside air is taken in and the air that has passed through the heater core 40 is discharged out of the vehicle through the external outlet 50 .
  • the air conditioning ECU 100 opens the electromagnetic valves 86A and 86B, closes the electromagnetic valves 86C, 86D, and 91, drives the first circulation pump 81, and circulates the heat medium in the heat medium flow path 87.
  • the heat medium that circulates through the device temperature adjustment circuit 80 and absorbs the waste heat of the battery 84 and the motor 85 is cooled by radiating the heat of the battery 84 and the motor 85 to the outside air, and is returned to the heat medium flow path 87 again. and flows into the battery 84 and the motor 85 .
  • the battery 84 and the motor 85 are naturally cooled. That is, the heater core 40 can function as a radiator.
  • the air conditioning ECU 100 operates the blower fan 27 to take the inside air or the outside air from the suction port 25 into the first air flow path 21 and exchange heat with the refrigerant in the refrigerant circuit R flowing into the cooler core 30 .
  • the air cooled by heat exchange in the cooler core 30 is blown out from the passenger compartment outlet 29 and used for cooling the passenger compartment.
  • the air cooled by the cooler core 30 is introduced using the first airflow passage 21.
  • the battery 84 and the motor 85 can be naturally cooled by outside air using the third air flow path 23 .
  • the vehicle exterior discharge passage 52 is selected, the air that has absorbed the waste heat of the battery 84 and the motor 85 is not blown into the vehicle interior, and the battery 84 and the air are discharged without affecting the cooling of the vehicle interior.
  • Motor 85 can be naturally cooled.
  • Cooling operation 2 (cooling operation and cooling of battery 84 and motor 85)
  • the operation can be switched as shown in FIG.
  • the air conditioning ECU 100 selects the first air flow path 21 and the second air flow path 22 without closing the outside air introduction damper 64 to take in the outside air.
  • the battery 84 and the motor 85 are cooled while the cooling operation is performed by the air cooled by exchanging heat with the refrigerant in the refrigerant circuit R.
  • the air conditioning ECU 100 controls the air mix damper 28 to select the first air flow path 21 and the second air flow path 22. In other words, the air that has passed through the cooler core 30 and is cooled is allowed to flow into both the first airflow passage 21 and the second airflow passage 22 .
  • the air conditioning ECU 100 controls the outside air introduction damper 64 to be in a closed state, thereby blocking the introduction of outside air from the outside air introduction passage 60 to the air blow passage 20 .
  • the air conditioning ECU 100 controls the blow damper 51 to open the external air outlet 50 to select the vehicle exterior discharge passage 52 .
  • the air that has passed through the second air flow path 22 that is, the air that has passed through the cooler core 30 and then the heater core 40 is discharged from the external outlet 50 to the outside of the vehicle.
  • the air conditioning ECU 100 opens the electromagnetic valves 86A and 86B, closes the electromagnetic valves 86C, 86D, and 91, drives the first circulation pump 81, and circulates the heat medium in the heat medium flow path 87.
  • the air cooled by passing through the cooler core 30 and the heat medium that has absorbed the heat of the battery 84 and the motor 85 exchange heat in the heater core 40 .
  • the air that has absorbed heat from the heat medium in the heater core 40 is blown out of the vehicle through the external outlet 50 . That is, the heat medium that circulates through the device temperature adjustment circuit 80 and absorbs the waste heat of the battery 84 and the motor 85 is cooled by dissipating the heat of the battery 84 and the motor 85 to the heat medium cooled by the cooler core 30, It circulates back to the heat medium flow path 87 and flows into the battery 84 and the motor 85 . Thereby, the battery 84 and the motor 85 are cooled. That is, the heater core 40 can function as a radiator.
  • the air conditioning ECU 100 operates the blower fan 27 to take the inside air or the outside air taken in from the suction port 25 into the air flow path 20 and exchange heat with the refrigerant in the refrigerant circuit R flowing into the cooler core 30 .
  • the air cooled by heat exchange in the cooler core 30 passes through the first air flow path 21 and is blown out from the passenger compartment outlet 29 to be used for cooling the passenger compartment.
  • the air cooled by the cooler core 30 is introduced using the first air flow path 21.
  • the battery 84 and the motor 85 can be cooled by the air cooled by the cooler core 30 using the second air flow path 22 .
  • the air that has absorbed the waste heat of the battery 84 and the motor 85 is not blown into the vehicle interior, and the battery 84 and the air are discharged without affecting the cooling of the vehicle interior.
  • Motor 85 can be cooled.
  • FIG. 5 also shows the state of the vehicle air conditioner 1 that cools the battery 84 and the motor 85 while performing cooling operation.
  • the air conditioning ECU 100 controls the air mix damper 28 to select the first air flow path 21 . That is, the second air flow path 22 is blocked and all the air that has passed through the cooler core 30 is allowed to flow into the first air flow path 21 .
  • the air conditioning ECU 100 controls the outside air introduction damper 64 to be in an open state, opens the outside air introduction port 63, and introduces outside air from the outside air introduction passage 60, thereby taking in the outside air and passing it through the heater core 40.
  • the 3rd air flow path 23 is selected.
  • the air conditioning ECU 100 selects the outside discharge passage 52 by controlling the blow damper 51 to open the external blowout port 50 . As a result, in the vehicle air conditioner 1 , the outside air is taken in and the air that has passed through the heater core 40 is discharged out of the vehicle through the external outlet 50 .
  • the air conditioning ECU 100 also opens the electromagnetic valves 86C and 91 and closes the electromagnetic valves 86A, 86B and 86D. At the same time, the first circulation pump 81 is driven to circulate the heat medium through the heat medium flow path 87 , and the second circulation pump 92 is driven to circulate the heat medium through the independent flow path 90 .
  • the heater core 40 heat is exchanged in the heater core 40 between the outside air taken in through the outside air introduction path 60 and the heat medium that has absorbed the heat of the battery 84 .
  • the air that has absorbed heat from the heat medium in the heater core 40 is blown out of the vehicle through the external outlet 50 . That is, the heat medium that circulates through the device temperature adjustment circuit 80 and absorbs the waste heat of the battery 84 dissipates the heat of the battery 84 to the outside air, is cooled, returns to the heat medium flow path 87 again, and flows into the battery 84. do. Thereby, the battery 84 is naturally cooled. That is, the heater core 40 can function as a radiator.
  • the heat medium that circulates through the independent flow path 90 and absorbs the heat of the motor 85 exchanges heat with the outside air in the radiator 93 .
  • the heat medium cooled by radiating the heat of the motor 85 to the outside air flows back into the independent flow path 90 and flows into the motor 85 . Thereby, the motor 85 is naturally cooled.
  • the air conditioning ECU 100 operates the blower fan 27 to take the inside air or the outside air from the suction port 25 into the first air flow path 21 and exchange heat with the refrigerant in the refrigerant circuit R flowing into the cooler core 30 .
  • the air cooled by heat exchange in the cooler core 30 is blown out from the passenger compartment outlet 29 and used for cooling the passenger compartment.
  • the air cooled by the cooler core 30 is introduced using the first airflow passage 21. While air-conditioning the vehicle interior, the battery 84 and the motor 85 can be naturally cooled by outside air using the third air flow path 23 .
  • the air that has absorbed the waste heat of the battery 84 is not blown out into the vehicle interior, and the battery 84 is naturally cooled without affecting the cooling of the vehicle interior. be able to.
  • the motor 85 can be naturally cooled by exchanging heat with the air passing through the radiator 93 by the heat medium circulating in the independent flow path 90 separately.
  • Cooling operation 4 (cooling operation and cooling of battery 84 and motor 85)
  • the vehicle air conditioner 1 for example, as a result of cooling the vehicle interior and naturally cooling the battery 84 and the motor 85 as shown in FIG. 5, the temperature in the vehicle interior approaches the temperature set by the user. is stabilized to some extent, the operation can be switched as shown in FIG.
  • the first air flow path 21 and the second air flow path 22 are selected without taking in the outside air with the outside air introduction damper 64 closed, and the air passing through the cooler core 30 is used for cooling operation. , cools the battery 84 and the motor 85 .
  • the air conditioning ECU 100 controls the air mix damper 28 to select the first air flow path 21 and the second air flow path 22. That is, the air that has passed through the cooler core 30 is made to flow into both the first air flow path 21 and the second air flow path 22 .
  • the air conditioning ECU 100 controls the outside air introduction damper 64 to be in a closed state to block the introduction of outside air from the outside air introduction passage 60 .
  • the air-conditioning ECU 100 controls the blow-out damper 51 to open the external blow-out port 50 and selects the vehicle exterior discharge passage 52 .
  • the air that has passed through the second air flow path 22 that is, the air that has passed through the cooler core 30 and then the heater core 40 is discharged from the external outlet 50 to the outside of the vehicle.
  • the air conditioning ECU 100 also opens the electromagnetic valves 86C and 91 and closes the electromagnetic valves 86A, 86B and 86D. At the same time, the first circulation pump 81 is driven to circulate the heat medium in the heat medium flow path 87 , and the second circulation pump 92 is driven to circulate the heat medium in the independent flow path 90 .
  • the air cooled by passing through the cooler core 30 and the heat medium that has absorbed the heat of the battery 84 exchange heat in the heater core 40 .
  • the air that has absorbed heat from the heat medium in the heater core 40 is blown out of the vehicle through the external outlet 50 .
  • the heat medium that circulates through the device temperature adjustment circuit 80 and absorbs the waste heat of the battery 84 dissipates the heat of the battery 84 to the heat medium that has been cooled by the cooler core 30 and is cooled again. , and flows into the battery 84 .
  • the battery 84 is thereby cooled. That is, the heater core 40 can function as a radiator.
  • the heat medium that circulates through the independent flow path 90 and absorbs the heat of the motor 85 exchanges heat with the outside air in the radiator 93 .
  • the heat medium cooled by radiating the heat of the motor 85 to the outside air flows back into the independent flow path 90 and flows into the motor 85 . Thereby, the motor 85 is naturally cooled.
  • the air conditioning ECU 100 operates the blower fan 27 to take the inside air or the outside air taken in from the suction port 25 into the air flow path 20 and exchange heat with the refrigerant in the refrigerant circuit R flowing into the cooler core 30 .
  • the air cooled by heat exchange in the cooler core 30 passes through the first air flow path 21 and is blown out from the passenger compartment outlet 29 to be used for cooling the passenger compartment.
  • the air cooled by the cooler core 30 is introduced using the first air flow path 21.
  • the air cooled by the cooler core 30 using the second air flow path 22 can cool the battery 84 while cooling the interior of the vehicle.
  • the air that has absorbed the waste heat of the battery 84 is not blown out into the vehicle interior, and the battery 84 can be cooled without affecting the cooling of the vehicle interior. can be done.
  • the motor 85 can be naturally cooled by exchanging heat with the air passing through the radiator 93 by the heat medium circulating in the independent flow path 90 separately.
  • ⁇ Behavior during heating operation ⁇ 7 to 12 show the state of the vehicle air conditioner 1 when the heating operation is performed. An example of the operation during heating operation will be described below.
  • FIG. 7 shows the state of the vehicle air conditioner 1 that cools the battery 84 and the motor 85 while performing the heating operation.
  • the air-conditioning ECU 100 controls the air mix damper 28 to close the second air flow path 22, and controls the outside air introduction damper 64 to open the outside air introduction port 63 to open the third air flow. Select path 23 .
  • the air blowing damper 51 is controlled to close the external air outlet 50 to block the blowing of air from the external air outlet 50 to the outside of the vehicle, and the vehicle interior air flow passage 53 for blowing air into the vehicle interior is selected.
  • outside air taken in by the outside air intake fan 62 from the outside air suction port 61 through the outside air introduction passage 60 passes through the heater core 40 and is blown into the vehicle interior.
  • the air conditioning ECU 100 opens the electromagnetic valves 86A and 86B, closes the electromagnetic valves 86C, 86D, and 91, drives the first circulation pump 81, and circulates the heat medium in the heat medium flow path 87.
  • the heater core 40 heat is exchanged in the heater core 40 between the outside air taken in through the outside air introduction path 60 and the heat medium that has absorbed the heat of the battery 84 and the motor 85 . That is, the heat medium that circulates through the device temperature adjustment circuit 80 and absorbs the waste heat of the battery 84 and the motor 85 is cooled by radiating the heat of the battery 84 and the motor 85 to the outside air, and is returned to the heat medium flow path 87 again. and flows into the battery 84 and the motor 85 . Thereby, the battery 84 and the motor 85 are naturally cooled. That is, the heater core 40 can function as a radiator.
  • the air that has been heated by absorbing heat from the heat medium in the heater core 40 is supplied into the passenger compartment through the passenger compartment outlet 29 and used for heating the passenger compartment.
  • the blower fan 27 is stopped during the heating operation, outside air is not introduced from the suction port 25, and when the blower fan 27 is driven, air is supplied from the suction port 25 by the blower fan 27.
  • the cooled air passes through the cooler core 30 without exchanging heat with the refrigerant.
  • the air passing through the third air flow path 23 can While the motor 85 is naturally cooled, the air heated by the waste heat of the battery 84 and the motor 85 is supplied into the vehicle interior, thereby heating the vehicle interior.
  • FIG. 8 shows the state of the vehicle air conditioner 1 that cools the battery 84 and the motor 85 while performing the heating operation.
  • the air-conditioning ECU 100 controls the air mix damper 28 to close the first air flow path 21 and select the second air flow path 22 .
  • the outside air introduction damper 64 is closed to block the introduction of outside air from the outside air introduction passage 60, and the blow damper 51 is controlled to close the external blowout port 50 so that the air from the outside blowout port 50 is blown out of the vehicle.
  • the in-vehicle air flow path 53 that cuts off the airflow and blows air into the vehicle interior is selected.
  • blower fan 27 is driven to introduce outside air or inside air from the suction port 25 into the second air flow path 22, and the air that has passed through the cooler core 30 without exchanging heat with the refrigerant passes through the heater core 40 to Air is blown into the room.
  • the air conditioning ECU 100 opens the electromagnetic valves 86A and 86B, closes the electromagnetic valves 86C, 86D, and 91, drives the first circulation pump 81, and circulates the heat medium in the heat medium flow path 87.
  • the inside air or outside air that has passed through the cooler core 30 without heat exchange with the refrigerant and the heat medium that has absorbed the heat of the battery 84 and the motor 85 exchange heat at the heater core 40. do. That is, the heat medium that circulates through the device temperature adjustment circuit 80 and absorbs the waste heat of the battery 84 and the motor 85 is cooled by dissipating the heat of the battery 84 and the motor 85 to the inside air or the outside air, and is cooled again. , and flows into the battery 84 and the motor 85 . Thereby, the battery 84 and the motor 85 are naturally cooled. That is, the heater core 40 can function as a radiator.
  • the inside air or the outside air that has been warmed by absorbing heat from the heat medium in the heater core 40 is supplied into the vehicle interior through the vehicle interior outlet 29 and used for heating the vehicle interior.
  • the air passing through the second air flow path 22 can While the motor 85 is naturally cooled, the air warmed by the waste heat of the battery 84 and the motor 85 can be supplied into the passenger compartment and used for heating.
  • FIG. 9 shows the state of the vehicle air conditioner 1 that heats the battery 84 and the motor 85 while performing the heating operation.
  • the air-conditioning ECU 100 controls the air mix damper 28 to close the second air flow path 22, and controls the outside air introduction damper 64 so that the outside air introduction port 63 is opened to open the third air flow. choose a road.
  • the air blowing damper 51 is controlled to close the external air outlet 50 to block the blowing of air from the external air outlet 50 to the outside of the vehicle, and the vehicle interior air flow passage 53 for blowing air into the vehicle interior is selected.
  • outside air taken in by the outside air intake fan 62 from the outside air suction port 61 through the outside air introduction passage 60 passes through the heater core 40 and is blown into the vehicle interior.
  • the air conditioning ECU 100 opens the electromagnetic valves 86A and 86B, closes the electromagnetic valves 86C, 86D, and 91, drives the first circulation pump 81, and circulates the heat medium in the heat medium flow path 87. Let At this time, the heater 82 is driven to heat the heat medium circulating through the heat medium flow path 87 of the device temperature adjustment circuit 80 .
  • the heat medium heated by the heater 82 flows into the battery 84 and the motor 85 after exchanging heat with the outside air that has passed through the third air flow path in the heater core 40 .
  • the battery 84 and the motor 85 are heated by residual heat of the heat medium after passing through the heater core 40 .
  • the heat medium that is further cooled by radiating heat in the battery 84 and the motor 85 flows back into the heat medium flow path 87 and is warmed again by the heater 82 before flowing into the heater core 40 . By repeating such circulation, the battery 84 and the motor 85 are heated.
  • the air that has been heated by absorbing heat from the heat medium in the heater core 40 is supplied into the passenger compartment through the passenger compartment outlet 29 and used for heating the passenger compartment.
  • the PTC heater 54 provided downstream of the third airflow passage 23 is driven to heat the air, thereby heating the vehicle. Complement.
  • At least the third air flow passage 23 is selected from among the plurality of air flow passages, and the in-vehicle air flow passage 53 is selected.
  • Heater 82 is driven.
  • the air passing through the third air flow path 23 absorbs heat from the heat medium heated by the heater 82, so that the warmed air can be supplied into the passenger compartment and used for heating.
  • the residual heat can also be used to heat the battery 84 and the motor 85 .
  • FIG. 10 shows the state of the vehicle air conditioner 1 that heats the battery 84 and the motor 85 while performing the heating operation.
  • the air conditioning ECU 100 controls the air mix damper 28 to close the first air flow path 21 and select the second air flow path 22 .
  • the external air introduction damper 64 is closed to block the introduction of the external air from the external air introduction passage 60, and the external air outlet 50 is controlled to be closed by the blow damper 51, so that the external air outlet 50 is discharged to the outside of the vehicle.
  • the in-vehicle air flow path 53 that cuts off the blowout of air and blows air into the vehicle interior is selected.
  • blower fan 27 is driven to introduce outside air or inside air from the suction port 25 into the second air flow path 22, and the air that has passed through the cooler core 30 without exchanging heat with the refrigerant passes through the heater core 40 to Air is blown into the room.
  • the air conditioning ECU 100 opens the electromagnetic valves 86A and 86B, closes the electromagnetic valves 86C, 86D, and 91, drives the first circulation pump 81, and circulates the heat medium in the heat medium flow path 87. Let At this time, the heater 82 is driven to heat the heat medium circulating through the heat medium flow path 87 of the device temperature adjustment circuit 80 .
  • the heat medium heated by the heater 82 flows into the battery 84 and the motor 85 after exchanging heat with the inside air or outside air that has passed through the second air flow path 22 in the heater core 40 .
  • the battery 84 and the motor 85 are heated by residual heat of the heat medium after passing through the heater core 40 .
  • the heat medium that is further cooled by radiating heat in the battery 84 and the motor 85 flows back into the heat medium flow path 87 and is warmed again by the heater 82 before flowing into the heater core 40 . By repeating such circulation, the battery 84 and the motor 85 are heated.
  • the air that has been heated by absorbing heat from the heat medium in the heater core 40 is supplied into the passenger compartment through the passenger compartment outlet 29 and used for heating the passenger compartment.
  • the PTC heater 54 provided downstream of the third airflow passage 23 is driven to heat the air, thereby heating the vehicle. Complement.
  • At least the second air flow path 22 is selected from among the plurality of air flow paths, and the in-vehicle air flow path 53 is selected.
  • Heater 82 is driven.
  • the air passing through the second air flow path 22 absorbs heat from the heat medium heated by the heater 82, so that the warmed air can be supplied into the passenger compartment and used for heating.
  • the residual heat can also be used to heat the battery 84 and the motor 85 .
  • FIG. 11 shows the state of the vehicle air conditioner 1 that heats the battery 84 and cools the motor 85 while performing the heating operation.
  • the air-conditioning ECU 100 controls the air mix damper 28 to close the second air flow path 22, and controls the outside air introduction damper 64 so that the outside air introduction port 63 is opened to open the third air flow. choose a road.
  • the air blowing damper 51 is controlled to close the external air outlet 50 to block the blowing of air from the external air outlet 50 to the outside of the vehicle, and the vehicle interior air flow passage 53 for blowing air into the vehicle interior is selected.
  • outside air taken in by the outside air intake fan 62 from the outside air suction port 61 through the outside air introduction passage 60 passes through the heater core 40 and is blown into the vehicle interior.
  • the air conditioning ECU 100 also opens the electromagnetic valves 86C and 91 and closes the electromagnetic valves 86A, 86B and 86D.
  • the first circulation pump 81 is driven to circulate the heat medium in the heat medium flow path 87
  • the second circulation pump 92 is driven to circulate the heat medium in the independent flow path 90 .
  • the heater 82 is driven to heat the heat medium circulating through the heat medium flow path 87 .
  • the heat medium heated by the heater 82 flows into the battery 84 after exchanging heat with the outside air that has passed through the third air flow path in the heater core 40 .
  • the battery 84 is heated by residual heat of the heat medium after passing through the heater core 40 .
  • the heat medium that is further cooled by radiating heat in the battery 84 flows back into the heat medium flow path 87 and is warmed again by the heater 82 before flowing into the heater core 40 . By repeating such circulation, the battery 84 is heated.
  • the heat medium that circulates through the independent flow path 90 and absorbs the heat of the motor 85 exchanges heat with the outside air in the radiator 93 .
  • the heat medium cooled by radiating the heat of the motor 85 to the outside air flows back into the independent flow path 90 and flows into the motor 85 . Thereby, the motor 85 is naturally cooled.
  • the air that has been heated by absorbing heat from the heat medium in the heater core 40 is supplied into the passenger compartment through the passenger compartment outlet 29 and used for heating the passenger compartment.
  • the PTC heater 54 provided downstream of the third airflow passage 23 is driven to heat the air, thereby heating the vehicle. Complement.
  • the third air flow passage 23 is selected from among the plurality of air flow passages, and the in-vehicle air flow passage 53 is selected.
  • Heater 82 is driven.
  • the air passing through the third air flow path 23 absorbs heat from the heat medium heated by the heater 82, so that the warmed air can be supplied into the passenger compartment and used for heating.
  • the residual heat can also be used to heat the battery 84 .
  • the motor 85 can be naturally cooled by using the independent flow path 90 .
  • FIG. 12 shows the state of the vehicle air conditioner 1 that heats the battery 84 and cools the motor 85 while performing the heating operation.
  • the air conditioning ECU 100 controls the air mix damper 28 to close the first air flow path 21 and select the second air flow path 22 .
  • the external air introduction damper 64 is closed to block the introduction of the external air from the external air introduction passage 60, and the external air outlet 50 is controlled to be closed by the blow damper 51, so that the external air outlet 50 is discharged to the outside of the vehicle.
  • the in-vehicle air flow path 53 that cuts off the blowout of air and blows air into the vehicle interior is selected.
  • blower fan 27 is driven to introduce outside air or inside air from the suction port 25 into the second air flow path 22, and the air that has passed through the cooler core 30 without exchanging heat with the refrigerant passes through the heater core 40 to Air is blown into the room.
  • the air conditioning ECU 100 also opens the electromagnetic valves 86C and 91 and closes the electromagnetic valves 86A, 86B and 86D.
  • the first circulation pump 81 is driven to circulate the heat medium in the heat medium flow path 87
  • the second circulation pump 92 is driven to circulate the heat medium in the independent flow path 90 .
  • the heater 82 is driven to heat the heat medium circulating through the heat medium flow path 87 .
  • the heat medium heated by the heater 82 flows into the battery 84 after exchanging heat with the inside air or the outside air that has passed through the second air flow path 22 in the heater core 40 .
  • the battery 84 is heated by residual heat of the heat medium after passing through the heater core 40 .
  • the heat medium that is further cooled by radiating heat in the battery 84 flows back into the heat medium flow path 87 and is warmed again by the heater 82 before flowing into the heater core 40 . By repeating such circulation, the battery 84 is heated.
  • the heat medium that circulates through the independent flow path 90 and absorbs the heat of the motor 85 exchanges heat with the outside air in the radiator 93 .
  • the heat medium cooled by radiating the heat of the motor 85 to the outside air flows back into the independent flow path 90 and flows into the motor 85 . Thereby, the motor 85 is naturally cooled.
  • the air that has been heated by absorbing heat from the heat medium in the heater core 40 is supplied into the passenger compartment through the passenger compartment outlet 29 and used for heating the passenger compartment.
  • the PTC heater 54 provided downstream of the second air flow path 22 is driven to heat the air, thereby heating the vehicle. Complement.
  • the second air flow path 22 is selected from among the plurality of air flow paths, and the in-vehicle air flow path 53 is selected.
  • Heater 82 is driven.
  • the air passing through the second air flow path 22 absorbs heat from the heat medium heated by the heater 82, so that the warmed air can be supplied into the passenger compartment and used for heating.
  • the residual heat can also be used to heat the battery 84 .
  • the motor 85 can be naturally cooled by using the independent flow path 90 .
  • FIG. 13 shows the state of the vehicle air conditioner 1 when the battery 84 is rapidly cooled.
  • the air conditioning ECU 100 controls the air mix damper 28 to close the first airflow passage 21 and select the second airflow passage 22 . That is, all of the inside air or the outside air supplied by the blower fan 27 from the suction port 25 is caused to flow into the second air flow path 22 and pass through the cooler core 30 .
  • the air conditioning ECU 100 also controls the outside air introduction damper 64 to close the outside air introduction port 63 to block the introduction of outside air from the outside air introduction passage 60 .
  • the air-conditioning ECU 100 controls the blow-out damper 51 to open the external blow-out port 50 to select the vehicle exterior discharge flow path 52 , and causes the air that has passed through the heater core 40 to flow out of the vehicle through the external blow-out port 50 .
  • the air conditioning ECU 100 opens the solenoid valve 86C, closes the solenoid valves 86A, 86B, 86D and 91, and drives the first circulation pump 81 to circulate the heat medium in the heat medium flow path 87.
  • the air conditioning ECU 100 operates the blower fan 27 to take the inside air or the outside air taken in from the suction port 25 into the cooler core 30 and exchange heat with the refrigerant in the refrigerant circuit R flowing into the cooler core 30 .
  • the air cooled by heat exchange in the cooler core 30 exchanges heat with a heat medium that is warmed by absorbing the heat of the battery 84 in the device temperature adjustment circuit 80 in the heater core 40 . Air that has absorbed heat from the heat medium in the heater core 40 is blown out of the vehicle through the external outlet 50 .
  • the heat medium that circulates through the heat medium flow path 87 and absorbs the heat of the battery 84 dissipates the heat of the battery 84 to the heat medium that has been cooled by the cooler core 30, and is cooled again. It circulates to the medium flow path 87 and flows into the battery 84 .
  • the battery 84 is thereby cooled. That is, the heater core 40 can function as a radiator.
  • the second air flow path 22 is selected from among the plurality of air flow paths, and the outside discharge flow path 52 is selected, and the air cooled by the cooler core 30 and the heat circulating through the device temperature adjustment circuit 80
  • the battery 84 can be rapidly cooled. After the heat exchange, the air passes through the vehicle exterior discharge channel 52 and is released to the exterior of the vehicle.
  • FIG. 14 shows the state of the vehicle air conditioner 1 when the battery 84 is rapidly heated.
  • the air conditioning ECU 100 controls the air mix damper 28 to close the first air flow path 21 and select the second air flow path 22 .
  • the air conditioning ECU 100 controls the outside air introduction damper 64 to close the outside air introduction port 63 to block the introduction of the outside air from the outside air introduction passage 60 .
  • the air-conditioning ECU 100 controls the blow-out damper 51 to open the external blow-out port 50 to select the vehicle exterior discharge flow path 52 , and causes the air that has passed through the heater core 40 to flow out of the vehicle through the external blow-out port 50 .
  • the air conditioning ECU 100 opens the solenoid valve 86C, closes the solenoid valves 86A, 86B, 86D and 91, and drives the first circulation pump 81 to circulate the heat medium in the heat medium flow path 87. At this time, the heater 82 is driven to heat the heat medium circulating through the heat medium flow path 87 .
  • the heat medium heated by the heater 82 flows into the battery 84 after passing through the heater core 40 .
  • the battery 84 is heated by the heat medium after passing through the heater core 40 .
  • the heat medium radiated and cooled in the battery 84 flows back into the heat medium flow path 87 and is warmed again by the heater 82 before flowing into the heater core 40 .
  • the air conditioning ECU 100 does not operate the blower fan 27 and does not take in the inside air or the outside air from the suction port 25. Therefore, the heat exchange between the air and the heat medium is not performed in the heater core 40, and the heat heated by the heater 82 The heat of the medium can be used to heat the battery 84 . By repeating such circulation, the battery 84 can be rapidly heated.
  • the vehicle interior air conditioning unit 10 is provided with a plurality of airflow passages that selectively pass through the cooler core 30 or the heater core 40, and these airflow passages can be selected as appropriate. can. Further, by switching the heat medium circulation flow path in the device temperature adjustment circuit 80, the heat medium can be controlled to circulate through the battery 84 and the motor 85, or circulate independently of each other.
  • the air flow path of the air conditioning unit is selected and the circulation of the heat medium circulating in the device temperature adjustment circuit 80 The flow path can be switched.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Transportation (AREA)
  • Combustion & Propulsion (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
  • Secondary Cells (AREA)

Abstract

La présente invention vise à permettre la réception d'une demande de refroidissement ou de régulation de la température de dispositifs dans un véhicule non seulement lors de l'opération de chauffage mais également lors de l'opération de refroidissement lorsque la climatisation est effectuée au moyen de chaleur perdue provenant des dispositifs embarqués, et également la réception d'une demande de surfusion de dispositifs embarqués dans un climatiseur qui utilise la chaleur perdue provenant des dispositifs embarqués. À cet effet, l'invention concerne un climatiseur de véhicule (1) qui comprend: une unité de climatisation (10) d'intérieur qui est équipée d'un échangeur de chaleur à absorption de chaleur (30) et d'un échangeur de chaleur à dissipation de chaleur (40); un circuit de milieu caloporteur (80) qui récupère la chaleur perdue de la pluralité de dispositifs embarqués (84, 85) par la circulation d'un milieu caloporteur en série à travers les dispositifs embarqués au moyen de l'échangeur de chaleur à dissipation de chaleur; et une unité de commande (100) qui effectue une commande sur l'unité de climatisation intérieure et le circuit de milieu caloporteur. L'unité de climatisation intérieure est équipée de plusieurs passages d'écoulement d'air qui passent sélectivement à travers l'échangeur de chaleur absorbant la chaleur et l'échangeur de chaleur à dissipation de chaleur, et est en outre équipé d'unités de sélection de passage d'écoulement d'air (26, 28, 51, 64) qui sélectionnent un ou plusieurs parmi la pluralité de passages d'écoulement d'air. L'unité de commande commande au moins la sélection de passages d'écoulement d'air réalisés par les unités de sélection de passage d'écoulement d'air.
PCT/JP2022/039800 2021-11-19 2022-10-25 Climatiseur de véhicule WO2023090084A1 (fr)

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JP2021189006A JP2023075845A (ja) 2021-11-19 2021-11-19 車両用空調装置

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013071587A (ja) * 2011-09-28 2013-04-22 Keihin Thermal Technology Corp 車両用空調装置
JP2014036530A (ja) * 2012-08-09 2014-02-24 Calsonic Kansei Corp 冷媒流量制御システム及び空調装置
JP2015058886A (ja) * 2013-09-20 2015-03-30 三菱重工オートモーティブサーマルシステムズ株式会社 車両用空調装置、車両空調用ヒータ、及び車両の空調方法
JP2020097348A (ja) * 2018-12-19 2020-06-25 株式会社ケーヒン・サーマル・テクノロジー 車両用空調装置
JP2021154911A (ja) * 2020-03-27 2021-10-07 サンデン・オートモーティブクライメイトシステム株式会社 車両用空気調和装置
WO2022107429A1 (fr) * 2020-11-20 2022-05-27 日本電産株式会社 Régulateur de température

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013071587A (ja) * 2011-09-28 2013-04-22 Keihin Thermal Technology Corp 車両用空調装置
JP2014036530A (ja) * 2012-08-09 2014-02-24 Calsonic Kansei Corp 冷媒流量制御システム及び空調装置
JP2015058886A (ja) * 2013-09-20 2015-03-30 三菱重工オートモーティブサーマルシステムズ株式会社 車両用空調装置、車両空調用ヒータ、及び車両の空調方法
JP2020097348A (ja) * 2018-12-19 2020-06-25 株式会社ケーヒン・サーマル・テクノロジー 車両用空調装置
JP2021154911A (ja) * 2020-03-27 2021-10-07 サンデン・オートモーティブクライメイトシステム株式会社 車両用空気調和装置
WO2022107429A1 (fr) * 2020-11-20 2022-05-27 日本電産株式会社 Régulateur de température

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