WO2021192762A1 - Dispositif de climatisation de véhicule - Google Patents

Dispositif de climatisation de véhicule Download PDF

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Publication number
WO2021192762A1
WO2021192762A1 PCT/JP2021/006340 JP2021006340W WO2021192762A1 WO 2021192762 A1 WO2021192762 A1 WO 2021192762A1 JP 2021006340 W JP2021006340 W JP 2021006340W WO 2021192762 A1 WO2021192762 A1 WO 2021192762A1
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WIPO (PCT)
Prior art keywords
battery
heat medium
cold storage
storage device
cooling
Prior art date
Application number
PCT/JP2021/006340
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English (en)
Japanese (ja)
Inventor
徹也 石関
大典 荒木
Original Assignee
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
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
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Application filed by 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 filed Critical 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
Priority to CN202180020905.3A priority Critical patent/CN115552187A/zh
Publication of WO2021192762A1 publication Critical patent/WO2021192762A1/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
    • B60H1/02—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant
    • B60H1/04—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant from cooling liquid of the plant
    • B60H1/08—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant from cooling liquid of the plant from other radiator than main radiator
    • 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B1/00—Compression machines, plants or systems with non-reversible cycle

Definitions

  • the present invention relates to an air conditioner for vehicles.
  • Patent Document 1 some electric vehicles and plug-in hybrid vehicles use a refrigeration cycle for air conditioning to cool the battery when the vehicle battery is rapidly charged.
  • An object of the present invention is to realize comfort in a vehicle interior without sacrificing battery cooling.
  • the vehicle air conditioner uses a cooling circuit for circulating a cooling heat medium and an air conditioning heat medium for air conditioning in the vehicle interior in a vehicle equipped with a battery that supplies power to an electric motor.
  • a vehicle air conditioner equipped with a circulating refrigeration cycle circuit wherein the cooling circuit is between a battery that requires cooling, a cold storage material capable of storing cold, and a heat medium for air conditioning of the refrigeration cycle circuit. It is equipped with a first heat exchanger that exchanges heat, and is equipped with a circuit switching control unit that switches circuits based on the state of battery charging, and the circuit switching control unit is before the reserved battery charge is executed.
  • the cold storage material is stored in the cold storage material by the cooling heat medium cooled by the first heat exchanger and the reserved battery is being charged, the battery is stored by the cooling heat medium cooled by the cold storage material. To cool.
  • cold is stored in a cold storage device in advance, and the battery being charged is cooled by this cold storage device. Therefore, even if there is a request for cooling operation, the cooling of the battery is not sacrificed in the vehicle interior. Comfort can be achieved.
  • FIG. 1 is a diagram showing an air conditioner for a vehicle.
  • the vehicle is a vehicle such as an electric vehicle or a plug-in hybrid vehicle that can charge the battery 45 by charging from an external power source and drives an electric motor by the electric power charged in the battery 45 to travel.
  • the vehicle air conditioner 11 is mounted on the vehicle and is driven by the electric power of the battery 45.
  • the vehicle air conditioner 11 includes a refrigeration cycle circuit 12 and an HVAC unit 13, and selectively performs heating operation, dehumidifying and heating operation, cooling operation, and dehumidifying and cooling operation by heat exchange using a heat medium for air conditioning. To air-condition the passenger compartment.
  • the refrigeration cycle circuit 12 includes a compressor 21, an outdoor expansion valve 23, an outdoor heat exchanger 24, an indoor expansion valve 25, a heat absorber 26, and an accumulator 27.
  • the compressor 21 compresses a low-pressure air-conditioning heat medium, which is a gas phase, to boost the pressure to a high-pressure air-conditioning heat medium that is easily liquefied.
  • a scroll compressor, a swash plate compressor, or the like For example, a scroll compressor, a swash plate compressor, or the like.
  • the drive source of the compressor 21 is, for example, an electric motor.
  • the compressor 21 is a refueling type in which lubrication is performed by oil circulating together with the heat medium for air conditioning, and the oil concentration with respect to the heat medium for air conditioning is about several percent.
  • the outdoor expansion valve 23 atomizes a high-pressure air-conditioning heat medium in a liquid phase and blows it out to reduce the pressure to a low-pressure air-conditioning heat medium that is easily vaporized, and the opening degree can be adjusted from fully closed to fully open. Is.
  • the outdoor heat exchanger 24 is provided inside the front grill of the vehicle body, and exchanges heat between the outside air passing around the heat radiation fins and the heat medium for air conditioning passing through the tube.
  • the outside air is mainly a running wind, but when a sufficient running wind cannot be obtained, the blower 28 is driven to blow the outside air to the heat radiating fins.
  • the outdoor heat exchanger 24 functions as a condenser, that is, a radiator, and is between the outside air passing around the heat radiating fin and the high-temperature air-conditioning heat medium (heat medium) passing through the tube. Heat exchange is performed at. That is, heat is dissipated to the heat medium for air conditioning in the tube to form a condensed liquid.
  • the indoor expansion valve 25 atomizes a high-pressure air-conditioning heat medium in a liquid phase and blows it out to reduce the pressure to a low-pressure air-conditioning heat medium that is easily vaporized, and the opening degree can be adjusted from fully closed to fully open.
  • the heat absorber 26 is provided in the HVAC unit 13 and exchanges heat between the air passing around the heat radiation fins and the low-temperature air-conditioning heat medium (refrigerant) passing through the tube. That is, the heat medium for air conditioning in the tube evaporates and vaporizes by absorbing heat, thereby cooling the air around the heat radiation fins and causing dew condensation on the surface of the heat radiation fins to dehumidify. Gas-liquid separation is performed between the accumulator 27 and the heat medium for air conditioning, and only the heat medium for air conditioning in the gas phase is supplied to the compressor 21.
  • the flow path of the heat medium for air conditioning is shown by a solid line.
  • the outlet of the compressor 21 communicates with the inlet of the outdoor heat exchanger 24 via the pipe 31b, and the pipe 31b is provided with the outdoor expansion valve 23.
  • the outlet of the outdoor heat exchanger 24 communicates with the inlet of the heat absorber 26 via the pipe 31c, and the pipe 31c is provided with the indoor expansion valve 25.
  • the outlet of the heat absorber 26 communicates with the inlet of the compressor 21 via the pipe 31f, and the accumulator 27 is provided in the pipe 31c.
  • the HVAC unit 13 (HVAC: Heating Ventilation and Air Conditioning) is arranged inside the dashboard, and is formed by a duct that introduces outside air and inside air from one end side and supplies air to the vehicle interior from the other end side. There is. Inside the HVAC unit 13, a blower fan 14, a heat absorber 26, and an air mix damper 15 are provided. The blower fan 14 is provided on one end side of the HVAC unit 13, and when driven, sucks outside air or inside air and discharges it to the other end side. The heat absorber 26 is provided on the downstream side of the blower fan 14. All the air blown out from the blower fan 14 passes through the heat absorber 26. Inside the HVAC unit 13, a flow path 16 and a flow path 17 bypassing the flow path 16 are formed on the downstream side of the heat absorber 26. The downstream side of the flow path 16 and the flow path 17 merge.
  • HVAC Heating Ventilation and Air Conditioning
  • the air mix damper 15 can rotate between a position where the flow path 16 is opened to close the flow path 17 and a position where the flow path 16 is closed and the flow path 17 is opened.
  • the air mix damper 15 is in a position where the flow path 16 is opened and the flow path 17 is closed, all the air that has passed through the heat absorber 26 passes through the flow path 16.
  • the air mix damper 15 is in a position where the flow path 16 is closed and the flow path 17 is opened, all the air that has passed through the heat absorber 26 bypasses the flow path 16.
  • the air mix damper 15 is in a position to open both the flow path 16 and the flow path 17, part of the air that has passed through the heat absorber 26 passes through the flow path 16 and the rest bypasses the flow path 16. , The air that has passed through the flow path 16 and the air that has bypassed the flow path 16 are mixed on the downstream side of the HVAC unit 13.
  • the vehicle air conditioner 11 includes a temperature control circuit 41, and controls the temperature of the battery 45 by circulating a heat medium for temperature control. Temperature control means adjusting or adjusting the temperature.
  • the heat medium for temperature control is, for example, water, but other fluids such as a refrigerant and coolant may be used.
  • the temperature control circuit 41 includes a main pump 42, a heater 43, a heater core 44, a battery 45, a cold storage material 46, and a heat exchanger 47.
  • the main pump 42 circulates the temperature control heat medium by sucking the temperature control heat medium of the temperature control circuit 41 from one side and discharging it to the other side.
  • the heater 43 is, for example, a water heater (ECH: Electric Coolant Heater) that heats a heat medium for temperature control.
  • EH Electric Coolant Heater
  • the heater core 44 is provided in the flow path 16 and exchanges heat between the air passing around the heat radiation fins and the heat medium for temperature control (heat medium) passing through the tube. The heater core 44 heats the air around the heat radiation fins when the heated heat medium for temperature control is supplied.
  • the battery 45 is a storage battery that supplies electric power to the electric motor, and is, for example, a lithium ion battery.
  • the temperature of the battery 45 is controlled by flowing a heat medium for temperature control through the water jacket formed on the battery 45.
  • the cold storage device 46 is a device that is allowed to have a lower temperature than the battery 45 among the devices capable of storing cold, and is, for example, at least one of an electric motor for traveling a vehicle and a fuel tank. By flowing the heat medium for temperature control through the water jacket formed on the cold storage device 46, cold storage is performed in the cold storage device 46.
  • the heat exchanger 47 includes a heat medium flow path 47A for temperature control through which the heat medium for temperature control passes and a heat medium flow path 47B for air conditioning through which the heat medium for air conditioning passes, and partially air-conditions the refrigeration cycle circuit 12. Heat exchange is performed between the heat medium for temperature control and the heat medium for temperature control of the temperature control circuit 41.
  • the outlet of the main pump 42 communicates with the inlet of the heater core 44 via the pipe 51a.
  • the outlet of the heater core 44 communicates with the inlet of the main pump 42 via the pipe 51b.
  • the pipe 51a is provided with a heater 43 and a three-way valve 52 in this order from the side of the main pump 42 toward the side of the heater core 44.
  • the pipe 51b is provided with a branch point 53 and a branch point 54 in this order from the side of the heater core 44 toward the side of the main pump 42.
  • the three-way valve 52 has an inlet communicating with the heater 43, one outlet communicating with the inlet of the heater core 44, and the other outlet communicating with the inlet of the temperature control heat medium flow path 47A in the heat exchanger 47 via the pipe 51c. doing.
  • the outlet of the temperature control heat medium flow path 47A in the heat exchanger 47 communicates with the branch point 54 via the pipe 51d.
  • the pipe 51c is provided with a three-way valve 61, a battery 45, a branch point 62, a three-way valve 63, a regenerator material 46, and a branch point 66 in this order from the side of the three-way valve 52 toward the side of the heat exchanger 47. ..
  • the three-way valve 61 has an inlet communicating with the three-way valve 52, one outlet communicating with the battery 45, and the other outlet communicating with the branch point 62 via the pipe 51e (battery bypass flow path).
  • the inlet communicates with the branch point 62, one outlet communicates with, and the other outlet communicates with the branch point 53 via the pipe 51f.
  • a three-way valve 68 is provided in the pipe 51f.
  • the three-way valve 68 has an inlet communicating with the three-way valve 63, one outlet communicating with the branch point 53, and the other outlet communicating with the branch point 66 via a pipe 51 g (cold storage equipment bypass flow path).
  • the refrigeration cycle circuit 12 includes an expansion valve 55 and a heat exchanger 47 (first heat exchanger).
  • the expansion valve 55 atomizes a high-pressure air-conditioning heat medium in a liquid phase and blows it out to reduce the pressure to a low-pressure air-conditioning heat medium that is easily vaporized, and the opening degree can be adjusted from fully closed to fully open. be.
  • an additional circuit configuration of the refrigeration cycle circuit 12 will be described. In the pipe 31c, there is a branch point 56 between the outdoor heat exchanger 24 and the indoor expansion valve 25, and in the pipe 31f, there is a branch point 57 between the heat exchanger 26 and the accumulator 27.
  • the branch point 56 communicates with the inlet of the air-conditioning heat medium flow path 47B in the heat exchanger 47 via the pipe 31g, and the outlet of the air-conditioning heat medium flow path 47B in the heat exchanger 47 branches via the pipe 31h. It communicates with point 57.
  • the expansion valve 55 is provided in the pipe 31 g.
  • the controller 71 is, for example, a microcomputer, and selectively executes each air conditioning operation of heating operation, dehumidifying and heating operation, cooling operation, and dehumidifying and cooling operation in response to an operation request from the user to perform air conditioning in the vehicle interior.
  • the controller 71 includes a compressor 21, an outdoor expansion valve 23, an indoor expansion valve 25, an expansion valve 55, a blower 28, a blower fan 14, an air mix damper 15, a main pump 42, a heater 43, a three-way valve 52, and a three-way valve 61.
  • the three-way valve 63, and the three-way valve 68 are driven and controlled.
  • FIG. 2 is a diagram showing a heating operation.
  • the flow path through which the heat medium for temperature control passes is indicated by a thick broken line.
  • the heating operation is performed by the heater 43 with the refrigeration cycle circuit 12 stopped. That is, in the refrigeration cycle circuit 12, the compressor 21 is stopped with the outdoor expansion valve 23 closed, the indoor expansion valve 25 closed, and the expansion valve 55 closed.
  • the temperature control circuit 41 the heater 43 is operated to drive the main pump 42, and the heat medium for temperature control is circulated. Further, each three-way valve is controlled so that the heat medium for temperature control circulates through the main pump 42, the heater 43, the three-way valve 52, the heater core 44, the branch point 53, and the branch point 54 in this order.
  • the heat medium for temperature control circulates through the main pump 42, the heater 43, the three-way valve 52, the heater core 44, the branch point 53, and the branch point 54 in this order.
  • the heat medium for temperature control becomes high temperature by absorbing heat by the heater 43, and becomes low temperature by dissipating heat by the heater core 44.
  • the blower fan 14 is driven, and the air mix damper 15 closes the flow path 17 while adjusting the ratio of passing through the heater core 44.
  • the introduced air is heated by the heater core 44, and warm air is supplied to the vehicle interior.
  • FIG. 3 is a diagram showing a dehumidifying and heating operation.
  • the flow path through which the low-pressure air-conditioning heat medium passes is indicated by a thick dotted line
  • the flow path through which the medium-pressure air-conditioning heat medium passes is indicated by a thick broken line
  • the flow path through which the high-pressure air-conditioning heat medium passes is shown. It is shown by a thick solid line.
  • the flow path through which the heat medium for temperature control passes is indicated by a thick broken line.
  • the heating operation is performed by the heater 43 while dehumidifying by the refrigeration cycle circuit 12.
  • the compressor 21 is driven in a state where the outdoor expansion valve 23 is slightly opened, the indoor expansion valve 25 is slightly opened, and the expansion valve 55 is closed.
  • the heater 43 is operated to drive the main pump 42, and the heat medium for temperature control is circulated. Further, each three-way valve is controlled so that the heat medium for temperature control circulates through the main pump 42, the heater 43, the three-way valve 52, the heater core 44, the branch point 53, and the branch point 54 in this order.
  • the heat medium for air conditioning circulates in this order via the compressor 21, the outdoor expansion valve 23, the outdoor heat exchanger 24, the branch point 56, the indoor expansion valve 25, the heat absorber 26, the branch point 57, and the accumulator 27. do.
  • the heat medium for air conditioning of the gas phase is compressed by the compressor 21 to a high pressure, expanded by the outdoor expansion valve 23 to a medium pressure, and radiated by the outdoor heat exchanger 24 to be condensed and liquefied to a low temperature.
  • the liquid phase air-conditioning heat medium is expanded by the indoor expansion valve 25 to a low pressure, and by absorbing heat by the endothermic device 26, it evaporates and vaporizes to a high temperature.
  • the heat medium for temperature control circulates through the main pump 42, the heater 43, the three-way valve 52, the heater core 44, the branch point 53, and the branch point 54 in this order.
  • the heat medium for temperature control becomes high temperature by absorbing heat by the heater 43, and becomes low temperature by dissipating heat by the heater core 44.
  • the blower fan 14 is driven, and the air mix damper 15 closes the flow path 17 while adjusting the ratio of passing through the heater core 44.
  • the introduced air is dehumidified and cooled by the heater 26, then heated by the heater core 44, and the dehumidified warm air is supplied to the vehicle interior.
  • FIG. 4 is a diagram showing a dehumidifying / cooling operation.
  • the flow path through which the low-pressure air-conditioning heat medium passes is indicated by a thick dotted line
  • the flow path through which the medium-pressure air-conditioning heat medium passes is indicated by a thick broken line
  • the flow path through which the high-pressure air-conditioning heat medium passes is shown. It is shown by a thick solid line.
  • the dehumidifying and cooling operation is performed by the refrigeration cycle circuit 12. That is, in the refrigeration cycle circuit 12, the compressor 21 is driven in a state where the outdoor expansion valve 23 is slightly opened, the indoor expansion valve 25 is slightly opened, and the expansion valve 55 is closed.
  • the heater 43 is operated to drive the main pump 42, and the heat medium for temperature control is circulated.
  • the heat medium for air conditioning circulates in this order via the compressor 21, the outdoor expansion valve 23, the outdoor heat exchanger 24, the branch point 56, the indoor expansion valve 25, the heat absorber 26, the branch point 57, and the accumulator 27. do.
  • the heat medium for air conditioning of the gas phase is compressed by the compressor 21 to a high pressure, expanded by the outdoor expansion valve 23 to a medium pressure, and radiated by the outdoor heat exchanger 24 to be condensed and liquefied to a low temperature.
  • the liquid phase air-conditioning heat medium is expanded by the indoor expansion valve 25 to a low pressure, and by absorbing heat by the endothermic device 26, it evaporates and vaporizes to a high temperature.
  • the blower fan 14 is driven, and the air mix damper 15 closes the flow path 16 while adjusting the ratio of bypassing the heater core 44.
  • the introduced air is dehumidified and cooled by the heat absorber 26, and dry and cool air is supplied to the vehicle interior.
  • FIG. 5 is a diagram showing a cooling operation.
  • the flow path through which the low-pressure air-conditioning heat medium passes is shown by a thick dotted line
  • the flow path through which the high-pressure air-conditioning heat medium passes is shown by a thick solid line.
  • the heat medium for air conditioning circulates in this order via the compressor 21, the outdoor expansion valve 23, the outdoor heat exchanger 24, the branch point 56, the indoor expansion valve 25, the heat absorber 26, the branch point 57, and the accumulator 27. do.
  • the heat medium for air conditioning in the gas phase is compressed by the compressor 21 to a high pressure, and is radiated by the outdoor heat exchanger 24 to be condensed and liquefied to a low temperature.
  • the liquid phase air-conditioning heat medium is expanded by the indoor expansion valve 25 to a low pressure, and by absorbing heat by the endothermic device 26, it evaporates and vaporizes to a high temperature.
  • the blower fan 14 is driven, and the air mix damper 15 closes the flow path 16 while adjusting the ratio of bypassing the heater core 44.
  • the introduced air is cooled by the heat absorber 26, and cool air is supplied to the vehicle interior.
  • FIG. 6 is a block diagram of an air conditioner for a vehicle.
  • the vehicle air conditioner 11 includes an information acquisition unit 72 and a charge reservation unit 73.
  • the information acquisition unit 72 acquires various types of information.
  • the inside air temperature is acquired by the inside air temperature sensor.
  • the temperature of the heat absorber 26 is acquired by the heat absorber temperature sensor.
  • the battery water temperature sensor detects the temperature of the temperature control heat medium on the inlet side of the battery 45.
  • the battery temperature sensor detects the temperature of the battery 45.
  • the fuel sensor detects the remaining amount of fuel.
  • the temperature of the cold storage device 46 is detected by the cold storage temperature sensor.
  • the charge sensor detects the charge status. Obtain the expected unexpected air temperature, etc. at the time of charging at the reserved charging base via Internet communication.
  • Various data are input to the controller 71.
  • the charge reservation unit 73 accepts the charge reservation of the battery 45 set by the user, and the charge reservation information including the time until the next charge is input to the controller 71.
  • the controller 71 executes pre-charging control processing and charging control processing, and drives and controls the refrigeration cycle circuit 12, the HVAC unit 13, and the temperature control circuit 41. That is, the controller 71 drives and controls the compressor 21, the outdoor expansion valve 23, the indoor expansion valve 25, the expansion valve 55, and the blower 28 of the refrigeration cycle circuit 12. Further, the controller 71 drives and controls the blower fan 14 and the air mix damper 15 of the HVAC unit 13. Further, the controller 71 drives and controls the main pump 42, the heater 43, the three-way valve 52, the three-way valve 61, the three-way valve 63, and the three-way valve 68 of the temperature control circuit 41.
  • FIG. 7 is a flowchart showing an example of pre-charging control processing.
  • the pre-charging control process is executed as a timer interrupt process at predetermined time intervals.
  • step S101 it is determined whether or not the battery 45 is in a non-charged state, not a charged state. When the battery 45 is in the charged state, it returns to the predetermined main program as it is. On the other hand, when the battery 45 is in the non-charged state, the process proceeds to step S102.
  • step S102 it is determined whether or not there is a charge reservation for the battery 45. When there is no charge reservation for the battery 45, the process proceeds to step S108. On the other hand, when there is a charge reservation for the battery 45, the process proceeds to step S103.
  • step S103 it is determined whether or not the rotation speed Nc of the compressor 21 is less than a predetermined threshold value N1.
  • the threshold value N1 is a value of about 50% of the maximum rotation speed.
  • the rotation speed Nc is equal to or higher than the threshold value N1
  • the rotation speed Nc is less than the threshold value N1
  • step S104 it is determined whether or not the temperature Tb of the battery 45 is higher than the predetermined threshold value T1.
  • the threshold value T1 is an upper limit value of the temperature at which cooling is judged to be unnecessary, and is, for example, about 40 ° C.
  • the temperature Tb of the battery 45 is equal to or less than the threshold value T1
  • the temperature Tb of the battery 45 is higher than the threshold value T1
  • it is determined that the battery 45 needs to be cooled and the process proceeds to step S105.
  • step S105 the battery 45 is cooled by the cooling power of the refrigeration cycle circuit 12, and the program returns to a predetermined main program.
  • the compressor 21 is opened in a state where the outdoor expansion valve 23 is fully opened, the indoor expansion valve 25 is slightly opened, and the expansion valve 55 is slightly opened. Drive.
  • the heater 43 is stopped, the main pump 42 is driven, and the heat medium for temperature control is circulated.
  • the heat medium for temperature control is the heat for temperature control in the main pump 42, the heater 43, the three-way valve 52, the three-way valve 61, the battery 45, the branch point 62, the three-way valve 63, the three-way valve 68, the branch point 66, and the heat exchanger 47.
  • Each three-way valve is controlled so as to circulate through the medium flow path 47A and the branch point 54 in order.
  • it is determined whether or not the reserved time tn until the next charging is less than a predetermined threshold value t1.
  • the threshold value t1 varies depending on the heat capacity of the cold storage device 46, but is, for example, about several minutes to several tens of minutes.
  • step S108 when the time tn is equal to or greater than the threshold value t1, it is determined that it is still too early to start the cold storage in the cold storage device 46, and the process proceeds to step S108. On the other hand, when the time tn is less than the threshold value t1, the process proceeds to step S107.
  • the threshold value t1 may be a fixed value, but it is preferable to make it variable according to the unexpected outside air temperature at the time of charging at the reserved charging base and the set temperature of the cooling operation. Specifically, the threshold value t1 is set according to the unexpected outside air temperature and the set temperature with reference to the map.
  • FIG. 8 is a map used for setting the threshold value.
  • (A) in the figure is a map for setting the threshold value t1 according to the expected outside air temperature.
  • the threshold value Tth is set to increase as the unexpected air temperature increases.
  • (B) in the figure is a map for setting the threshold value t1 according to the set temperature.
  • the higher the set temperature the larger the threshold value t1 is set.
  • the higher the set temperature the earlier the start of cold storage in the cold storage device 46.
  • step S107 the cold power of the refrigeration cycle circuit 12 is used to store cold in the cold storage device 46, and the program returns to a predetermined main program.
  • the compressor 21 is opened in a state where the outdoor expansion valve 23 is fully opened, the indoor expansion valve 25 is slightly opened, and the expansion valve 55 is slightly opened. Drive.
  • the heater 43 is stopped, the main pump 42 is driven, and the heat medium for temperature control is circulated.
  • the heat medium for temperature control is the heat for temperature control in the main pump 42, the heater 43, the three-way valve 52, the three-way valve 61, the pipe 51e, the branch point 62, the three-way valve 63, the cold storage material 46, the branch point 66, and the heat exchanger 47.
  • Each three-way valve is controlled so as to circulate through the medium flow path 47A and the branch point 54 in order.
  • step S108 normal air conditioning operation is performed, and the program returns to a predetermined main program.
  • FIG. 9 is a flowchart showing an example of the charging control process.
  • the charging control process is executed as a timer interrupt process at predetermined time intervals.
  • step S111 it is determined whether or not the battery 45 is in a charged state.
  • the process proceeds to step S112.
  • step S112 it is determined whether or not the temperature Tb of the battery 45 is higher than the predetermined threshold value T2.
  • the threshold value T2 is a lower limit value that is determined to be an abnormal temperature rise, and is, for example, about 50 ° C.
  • step S114 when the temperature Tb of the battery 45 is equal to or less than the threshold value T2, it is determined that the temperature does not rise abnormally, and the process proceeds to step S114.
  • the temperature Tb of the battery 45 is higher than the threshold value T2, it is determined that the temperature has risen abnormally, and the process proceeds to step S113.
  • step S113 the battery 45 is fully cooled and returned to a predetermined main program.
  • the compressor 21 is driven with the outdoor expansion valve 23 fully opened, the indoor expansion valve 25 closed, and the expansion valve 55 slightly opened.
  • the heater 43 is stopped, the main pump 42 is driven, and the heat medium for temperature control is circulated.
  • the heat medium for temperature control is the heat for temperature control in the main pump 42, the heater 43, the three-way valve 52, the three-way valve 61, the battery 45, the branch point 62, the three-way valve 63, the cold storage material 46, the branch point 66, and the heat exchanger 47.
  • Each three-way valve is controlled so as to circulate through the medium flow path 47A and the branch point 54 in order.
  • step S114 it is determined whether or not the temperature Tb of the battery 45 is higher than the predetermined threshold value T3.
  • the threshold value T3 is an upper limit value at which it is determined that cooling is unnecessary, and is, for example, about 40 ° C.
  • the process proceeds to step S120.
  • the temperature Tb of the battery 45 is higher than the threshold value T3, it is determined that cooling is necessary, and the process proceeds to step S115.
  • step S115 it is determined whether or not the temperature Tc of the cold storage device 46 is lower than the predetermined threshold value T4.
  • the threshold value T4 is an upper limit value that is determined to have sufficient cooling capacity, and is, for example, about a dozen ° C.
  • the threshold value T4 is an upper limit value that is determined to have sufficient cooling capacity, and is, for example, about a dozen ° C.
  • step S116 the battery 45 is cooled by the cold storage device 46, and the program returns to a predetermined main program.
  • the compressor 21 is driven with the outdoor expansion valve 23 fully opened, the indoor expansion valve 25 slightly opened, and the expansion valve 55 closed. ..
  • the heater 43 is stopped, the main pump 42 is driven, and the heat medium for temperature control is circulated.
  • the heat medium for temperature control is the heat for temperature control in the main pump 42, the heater 43, the three-way valve 52, the three-way valve 61, the battery 45, the branch point 62, the three-way valve 63, the cold storage material 46, the branch point 66, and the heat exchanger 47.
  • step S117 it is determined whether or not the rotation speed Nc of the compressor 21 is less than a predetermined threshold value N1.
  • the threshold value N1 is a value of about 50% of the maximum rotation speed.
  • the rotation speed Nc is equal to or higher than the threshold value N1, it is determined that there is no surplus cooling power of the refrigerating cycle circuit 12 performing the cooling operation, and the process proceeds to step S119.
  • the rotation speed Nc is less than the threshold value N1
  • step S118 the battery 45 is cooled by the refrigeration cycle circuit 12, and the program returns to the predetermined main program.
  • the compressor 21 is driven with the outdoor expansion valve 23 fully opened, the indoor expansion valve 25 slightly opened, and the expansion valve 55 slightly opened.
  • the heater 43 is stopped, the main pump 42 is driven, and the heat medium for temperature control is circulated.
  • the heat medium for temperature control is the heat for temperature control in the main pump 42, the heater 43, the three-way valve 52, the three-way valve 61, the battery 45, the branch point 62, the three-way valve 63, the three-way valve 68, the branch point 66, and the heat exchanger 47.
  • Each three-way valve is controlled so as to circulate through the medium flow path 47A and the branch point 54 in order.
  • step S119 the refrigerating cycle circuit 12 preferentially cools the battery 45 and returns to a predetermined main program.
  • the compressor 21 is driven with the outdoor expansion valve 23 fully opened, the indoor expansion valve 25 closed, and the expansion valve 55 slightly opened.
  • the temperature control circuit 41 the heater 43 is stopped, the main pump 42 is driven, and the heat medium for temperature control is circulated.
  • the heat medium for temperature control is the heat for temperature control in the main pump 42, the heater 43, the three-way valve 52, the three-way valve 61, the battery 45, the branch point 62, the three-way valve 63, the three-way valve 68, the branch point 66, and the heat exchanger 47.
  • Each three-way valve is controlled so as to circulate through the medium flow path 47A and the branch point 54 in order.
  • step S120 normal air conditioning operation is performed, and the program returns to a predetermined main program.
  • FIG. 10 is a diagram showing a cold storage operation before charging.
  • the flow path through which the low-pressure air-conditioning heat medium passes is shown by a thick dotted line
  • the flow path through which the high-pressure air-conditioning heat medium passes is shown by a thick solid line.
  • the flow path through which the heat medium for temperature control passes is indicated by a thick broken line.
  • the compressor 21 is driven with the outdoor expansion valve 23 fully opened, the indoor expansion valve 25 slightly opened, and the expansion valve 55 slightly opened.
  • the heater 43 is stopped, the main pump 42 is driven, and the temperature control heat medium is circulated.
  • the heat medium for temperature control is the heat for temperature control of the main pump 42, the heater 43, the three-way valve 52, the three-way valve 61, the pipe 51e, the branch point 62, the three-way valve 63, the cold storage material 46, the branch point 66, and the heat exchanger 47.
  • Each three-way valve is controlled so as to circulate through the medium flow path 47A and the branch point 54 in order.
  • the heat medium for air conditioning in the gas phase is compressed by the compressor 21 to become a high pressure, and is radiated by the outdoor heat exchanger 24 to be condensed and liquefied to a low temperature.
  • the liquid phase air-conditioning heat medium is expanded by the indoor expansion valve 25 to a low pressure, and by absorbing heat by the endothermic device 26, it evaporates and vaporizes to a high temperature.
  • a part of the liquid phase air-conditioning heat medium is expanded by the expansion valve 55 to a low pressure, and by absorbing heat in the air-conditioning heat medium flow path 47B in the heat exchanger 47, it evaporates and vaporizes to a high temperature.
  • the heat medium for temperature control becomes high temperature by absorbing heat in the cold storage device 46, and becomes low temperature by radiating heat in the heat medium flow path 47A for temperature control in the heat exchanger 47. Then, the cold storage device 46 having a large heat capacity is cooled by the heat medium for temperature control and is stored cold.
  • the blower fan 14 is driven, and the air mix damper 15 closes the flow path 16 while adjusting the ratio of bypassing the heater core 44. As a result, the introduced air is cooled by the heat absorber 26, and cool air is supplied to the vehicle interior.
  • FIG. 11 is a diagram showing a battery cooling operation before charging.
  • the flow path through which the low-pressure air-conditioning heat medium passes is shown by a thick dotted line
  • the flow path through which the high-pressure air-conditioning heat medium passes is shown by a thick solid line.
  • the flow path through which the heat medium for temperature control passes is indicated by a thick broken line.
  • the battery cooling operation before charging which is executed when the temperature Tb of the battery 45 is higher than the threshold value T1 in the state where the cooling operation is performed, will be described.
  • the compressor 21 is driven with the outdoor expansion valve 23 fully opened, the indoor expansion valve 25 slightly opened, and the expansion valve 55 slightly opened.
  • the heater 43 is stopped, the main pump 42 is driven, and the temperature control heat medium is circulated.
  • the heat medium for temperature control is the heat for temperature control of the main pump 42, the heater 43, the three-way valve 52, the three-way valve 61, the battery 45, the branch point 62, the three-way valve 63, the three-way valve 68, the branch point 66, and the heat exchanger 47.
  • Each three-way valve is controlled so as to circulate through the medium flow path 47A and the branch point 54 in order.
  • the heat medium for air conditioning in the gas phase is compressed by the compressor 21 to become a high pressure, and is radiated by the outdoor heat exchanger 24 to be condensed and liquefied to a low temperature.
  • the liquid phase air-conditioning heat medium is expanded by the indoor expansion valve 25 to a low pressure, and by absorbing heat by the endothermic device 26, it evaporates and vaporizes to a high temperature.
  • a part of the liquid phase air-conditioning heat medium is expanded by the expansion valve 55 to a low pressure, and by absorbing heat in the air-conditioning heat medium flow path 47B in the heat exchanger 47, it evaporates and vaporizes to a high temperature.
  • the heat medium for temperature control becomes high temperature by absorbing heat by the battery 45, and becomes low temperature by dissipating heat in the heat medium flow path 47A for temperature control in the heat exchanger 47.
  • the battery 45 is cooled by the heat medium for temperature control.
  • the blower fan 14 is driven, and the air mix damper 15 closes the flow path 16 while adjusting the ratio of bypassing the heater core 44.
  • the introduced air is cooled by the heat absorber 26, and cool air is supplied to the vehicle interior.
  • FIG. 12 is a diagram showing a battery cooling operation (cold storage device) during charging.
  • the flow path through which the low-pressure air-conditioning heat medium passes is shown by a thick dotted line
  • the flow path through which the high-pressure air-conditioning heat medium passes is shown by a thick solid line
  • the flow path through which the heat medium for temperature control passes is indicated by a thick broken line.
  • the compressor 21 is driven in a state where the outdoor expansion valve 23 is fully opened, the indoor expansion valve 25 is slightly opened, and the expansion valve 55 is closed.
  • the heater 43 is stopped, the main pump 42 is driven, and the temperature control heat medium is circulated.
  • the heat medium for temperature control is the heat for temperature control of the main pump 42, the heater 43, the three-way valve 52, the three-way valve 61, the battery 45, the branch point 62, the three-way valve 63, the cold storage material 46, the branch point 66, and the heat exchanger 47.
  • Each three-way valve is controlled so as to circulate through the medium flow path 47A and the branch point 54 in order.
  • the heat medium for air conditioning in the gas phase is compressed by the compressor 21 to become a high pressure, and is radiated by the outdoor heat exchanger 24 to be condensed and liquefied to a low temperature.
  • the liquid phase air-conditioning heat medium is expanded by the indoor expansion valve 25 to a low pressure, and by absorbing heat by the endothermic device 26, it evaporates and vaporizes to a high temperature.
  • the heat medium for temperature control becomes high temperature by absorbing heat by the battery 45, and becomes low temperature by dissipating heat by the cold storage device 46. As a result, the battery 45 is cooled by the heat medium for temperature control.
  • the blower fan 14 is driven, and the air mix damper 15 closes the flow path 16 while adjusting the ratio of bypassing the heater core 44.
  • the introduced air is cooled by the heat absorber 26, and cool air is supplied to the vehicle interior.
  • FIG. 13 is a diagram showing a battery cooling operation (full cooling) during charging.
  • the flow path through which the low-pressure air-conditioning heat medium passes is shown by a thick dotted line
  • the flow path through which the high-pressure air-conditioning heat medium passes is shown by a thick solid line
  • the flow path through which the heat medium for temperature control passes is indicated by a thick broken line.
  • the compressor 21 is driven with the outdoor expansion valve 23 fully opened, the indoor expansion valve 25 closed, and the expansion valve 55 slightly opened.
  • the heater 43 is stopped, the main pump 42 is driven, and the temperature control heat medium is circulated.
  • the heat medium for temperature control is the heat for temperature control of the main pump 42, the heater 43, the three-way valve 52, the three-way valve 61, the battery 45, the branch point 62, the three-way valve 63, the cold storage material 46, the branch point 66, and the heat exchanger 47.
  • Each three-way valve is controlled so as to circulate through the medium flow path 47A and the branch point 54 in order.
  • the heat medium for air conditioning in the gas phase is compressed by the compressor 21 to become a high pressure, and is radiated by the outdoor heat exchanger 24 to be condensed and liquefied to a low temperature.
  • the liquid phase air-conditioning heat medium is expanded by the expansion valve 55 to a low pressure, and by absorbing heat in the air-conditioning heat medium flow path 47B in the heat exchanger 47, it evaporates and vaporizes to a high temperature.
  • the heat medium for temperature control becomes high temperature by absorbing heat in the battery 45, becomes low temperature by radiating heat in the regenerator material 46, and becomes even lower in temperature by radiating heat in the heat medium flow path 47A for temperature control in the heat exchanger 47. ..
  • the battery 45 is surely cooled by the heat medium for temperature control.
  • the blower fan 14 is driven, and the air mix damper 15 closes the flow path 16 while adjusting the ratio of bypassing the heater core 44. As a result, the introduced air is supplied to the passenger compartment.
  • FIG. 14 is a diagram showing a battery cooling operation (refrigeration cycle circuit) during charging.
  • the flow path through which the low-pressure air-conditioning heat medium passes is shown by a thick dotted line
  • the flow path through which the high-pressure air-conditioning heat medium passes is shown by a thick solid line.
  • the flow path through which the heat medium for temperature control passes is indicated by a thick broken line.
  • the battery cooling operation (refrigeration cycle circuit) at the time of charging which is executed when the temperature Tc of the cold storage device 46 is equal to or higher than the threshold value T4 in the state where the reserved charging is being performed, will be described.
  • the compressor 21 is driven with the outdoor expansion valve 23 fully opened, the indoor expansion valve 25 slightly opened, and the expansion valve 55 slightly opened.
  • the heater 43 is stopped, the main pump 42 is driven, and the temperature control heat medium is circulated.
  • the heat medium for temperature control is the heat for temperature control of the main pump 42, the heater 43, the three-way valve 52, the three-way valve 61, the battery 45, the branch point 62, the three-way valve 63, the three-way valve 68, the branch point 66, and the heat exchanger 47.
  • Each three-way valve is controlled so as to circulate through the medium flow path 47A and the branch point 54 in order.
  • the heat medium for air conditioning in the gas phase is compressed by the compressor 21 to become a high pressure, and is radiated by the outdoor heat exchanger 24 to be condensed and liquefied to a low temperature.
  • the liquid phase air-conditioning heat medium is expanded by the indoor expansion valve 25 to a low pressure, and by absorbing heat by the endothermic device 26, it evaporates and vaporizes to a high temperature.
  • a part of the liquid phase air-conditioning heat medium is expanded by the expansion valve 55 to a low pressure, and by absorbing heat in the air-conditioning heat medium flow path 47B in the heat exchanger 47, it evaporates and vaporizes to a high temperature.
  • the heat medium for temperature control becomes high temperature by absorbing heat by the battery 45, and becomes low temperature by dissipating heat in the heat medium flow path 47A for temperature control in the heat exchanger 47.
  • the battery 45 is cooled by the heat medium for temperature control.
  • the blower fan 14 is driven, and the air mix damper 15 closes the flow path 16 while adjusting the ratio of bypassing the heater core 44.
  • the introduced air is cooled by the heat absorber 26, and cool air is supplied to the vehicle interior.
  • FIG. 15 is a diagram showing a battery cooling operation (cooling priority) during charging.
  • the flow path through which the low-pressure air-conditioning heat medium passes is shown by a thick dotted line
  • the flow path through which the high-pressure air-conditioning heat medium passes is shown by a thick solid line.
  • the flow path through which the heat medium for temperature control passes is indicated by a thick broken line.
  • the battery cooling operation (cooling priority) at the time of charging which is executed when the temperature Tc of the cold storage device 46 is equal to or higher than the threshold value T4 in the reserved charging state, will be described.
  • the compressor 21 is driven with the outdoor expansion valve 23 fully opened, the indoor expansion valve 25 closed, and the expansion valve 55 slightly opened.
  • the heater 43 is stopped, the main pump 42 is driven, and the temperature control heat medium is circulated.
  • the heat medium for temperature control is the heat for temperature control of the main pump 42, the heater 43, the three-way valve 52, the three-way valve 61, the battery 45, the branch point 62, the three-way valve 63, the three-way valve 68, the branch point 66, and the heat exchanger 47.
  • Each three-way valve is controlled so as to circulate through the medium flow path 47A and the branch point 54 in order.
  • the heat medium for air conditioning in the gas phase is compressed by the compressor 21 to become a high pressure, and is radiated by the outdoor heat exchanger 24 to be condensed and liquefied to a low temperature.
  • the liquid phase air-conditioning heat medium is expanded by the expansion valve 55 to a low pressure, and by absorbing heat in the air-conditioning heat medium flow path 47B in the heat exchanger 47, it evaporates and vaporizes to a high temperature.
  • the heat medium for temperature control becomes high temperature by absorbing heat by the battery 45, and becomes low temperature by dissipating heat in the heat medium flow path 47A for temperature control in the heat exchanger 47.
  • the battery 45 is cooled by the heat medium for temperature control.
  • the blower fan 14 is driven, and the air mix damper 15 closes the flow path 16 while adjusting the ratio of bypassing the heater core 44. As a result, the introduced air is supplied to the passenger compartment.
  • FIG. 16 is a diagram showing a battery heating operation.
  • the flow path through which the heat medium for temperature control passes is indicated by a thick broken line.
  • the battery heating operation executed when the temperature of the battery 45 is lower than a predetermined threshold value will be described.
  • the description of the refrigeration cycle circuit 12 will be omitted on the assumption that the refrigeration cycle circuit 12 functions independently.
  • the heater 43 is operated to drive the main pump 42, and the heat medium for temperature control is circulated.
  • the heat medium for temperature control passes through the main pump 42, the heater 43, the three-way valve 52, the three-way valve 61, the battery 45, the branch point 62, the three-way valve 63, the three-way valve 68, the branch point 53, and the branch point 54 in this order. Control each three-way valve so that it circulates.
  • the heat medium for temperature control becomes high temperature by absorbing heat by the heater 43, and becomes low temperature by dissipating heat by the battery 45.
  • the battery 45 is heated by the heat medium for temperature control.
  • the battery 45 corresponds to the "battery”
  • the temperature control circuit 41 corresponds to the "cooling circuit”
  • the refrigeration cycle circuit 12 corresponds to the "refrigeration cycle circuit”
  • the cold storage device 46 corresponds to the "cold storage device”.
  • the heat exchanger 47 corresponds to the "first heat exchanger”
  • the processes of steps S101 to S108 and the processes of steps S111 to S120 correspond to the "circuit switching control unit”.
  • the pipe 51e corresponds to the "battery bypass flow path”
  • a part of the pipe 51f and the pipe 51g correspond to the "cold storage equipment bypass flow path”.
  • the temperature control circuit 41 is provided with a battery 45, a cold storage material 46, and a heat exchanger 47.
  • the cold storage material 46 is stored in the cold storage material 46 by the heat medium for temperature control cooled by the heat exchanger 47 (S107). .. After that, when the reserved battery is being charged (the determination in S111 is “Yes”), the battery 45 is cooled by the heat control medium cooled by the cold storage device 46 (S116).
  • the cold storage device 46 is a device that is allowed to have a lower temperature than the battery 45, and is, for example, at least one of an electric motor for traveling a vehicle and a fuel tank. Sufficient cold storage performance can be ensured as long as the equipment allows the temperature to be lower than that of the battery 45. Further, since the electric motor and the fuel tank are existing components, it is possible to suppress an increase in cost by utilizing these components as compared with the case where a new cold storage material is mounted.
  • a pipe 51e that bypasses the battery 45 is provided, and it is selectively switched between passing the pipe 51e through the heat control heat medium and passing the battery 45. That is, the pipe 51e is passed through the temperature control heat medium before the reserved charging is executed, and the battery 45 is passed through the temperature control heat medium when the reserved charging is being executed. Thereby, the heat storage in the cold storage device 46 and the cooling of the battery 45 by the cold storage device 46 can be easily switched. Further, when the reserved time tn until the next charging becomes less than the threshold value t1 (determination of S106 is “Yes”), cold storage in the cold storage device 46 is started (S107). As a result, the cold storage device 46 can be sufficiently stored in advance by the time the reserved charging is started.
  • the threshold value t1 is increased to accelerate the start of cold storage in the cold storage device 46.
  • the cold storage device 46 can be sufficiently stored in the cold storage device 46 by the time the reserved charging is started.
  • the start of cold storage in the cold storage device 46 is accelerated by increasing the threshold value t1.
  • the cold storage device 46 can be sufficiently stored in the cold storage device 46 by the time the reserved charging is started.
  • the battery 45 and the cold storage device 46 are circulated in the heat medium for temperature control in this order. As a result, the battery 45 being charged can be cooled by the cold storage device 46. Further, when the reserved charging is being executed and the temperature Tc of the cold storage device 46 becomes equal to or higher than the threshold value T4 (the determination of S115 is “No”), the heat medium for air conditioning cooled by the refrigeration cycle circuit 12 Cools the battery 45 (S118 or S119). In this way, when the cooling power of the cold storage device 46 is lost, the battery 45 can be reliably cooled by switching to cooling by the refrigeration cycle circuit 12.
  • a pipe 51 g that bypasses the cold storage device 46 is provided, and it is selectively switched between passing the cold storage device 46 through the heat control heat medium and passing the pipe 51 g. That is, when the temperature Tc of the cold storage device 46 is lower than the threshold value T4 (the determination of S115 is “Yes”) in the state where the reserved charging is being executed, the cold storage device 46 is passed through the temperature control heat medium. On the other hand, when the temperature Tc of the cold storage device 46 is equal to or higher than the threshold value T4 (the determination in S115 is “No”), the temperature control heat medium is passed through the pipe 51 g. Thereby, the cooling of the battery 45 by the cold storage device 46 and the cooling of the battery 45 by the refrigeration cycle circuit 12 can be easily switched.
  • the threshold value t1 is made variable according to the unexpected outside air temperature and the set temperature, but the present invention is not limited to this.
  • the threshold value t1 is made variable according to the unexpected outside air temperature and the set temperature, but the present invention is not limited to this.
  • the configuration in which the outdoor expansion valve 23 is fully opened during cooling has been described, but the present invention is not limited to this.
  • a bypass flow path that bypasses the outdoor expansion valve 23 may be provided so that the bypass flow path can be opened and closed.
  • the pressure loss can be reduced by closing the outdoor expansion valve 23 and opening the bypass flow path during cooling.
  • the configuration in which the heating operation is performed by the heater 43 has been described, but the present invention is not limited to this. If it is a heat pump type refrigeration cycle circuit 12, the heating operation may be performed by the refrigeration cycle circuit 12.
  • FIG. 17 is a diagram showing a vehicle air conditioner according to the second embodiment.
  • the temperature control circuit 41 includes a sub pump 81.
  • the sub-pump 81 circulates the temperature control heat medium by sucking the temperature control heat medium of the temperature control circuit 41 from one side and discharging it to the other side.
  • the pipe 51a is provided with a branch point 82 between the three-way valve 52 and the heater core 44, and the pipe 51c is provided with a three-way valve 83 between the cold storage device 46 and the branch point 66.
  • the outlet of the sub pump 81 communicates with the branch point 82 via the pipe 51h.
  • the three-way valve 83 has an inlet communicating with the cold storage device 46, one outlet communicating with the branch point 66, and the other outlet communicating with the inlet of the sub pump 81 via the pipe 51i.
  • the pipe 51b is provided with a three-way valve 84 between the heater core 44 and the branch point 53, and the pipe 51c is provided with a branch point 85 between the three-way valve 63 and the cold storage device 46. ..
  • the three-way valve 84 has an inlet communicating with the heater core 44, one outlet communicating with the branch point 53, and the other outlet communicating with the branch point 85 via the pipe 51j.
  • the pipe 51d is provided with a three-way valve 86 between the heat exchanger 47 and the branch point 54, and the pipe 51a is provided with a branch point 87 between the three-way valve 52 and the branch point 82.
  • the three-way valve 86 has an inlet communicating with the heat exchanger 47, one outlet communicating with the branch point 54, and the other outlet communicating with the branch point 87 via the pipe 51k.
  • FIG. 18 is a diagram showing a cooling operation (cold storage device) during charging.
  • the flow path through which the low-pressure air-conditioning heat medium passes is shown by a thick dotted line
  • the flow path through which the high-pressure air-conditioning heat medium passes is shown by a thick solid line.
  • the flow path through which the heat medium for temperature control passes is indicated by a thick broken line.
  • the cooling operation (cooling device material) at the time of charging in which the cooling operation is executed by the cold storage device 46 in the state where the reserved charging is being performed will be described.
  • the compressor 21 is driven in a state where the outdoor expansion valve 23 is fully opened, the indoor expansion valve 25 is slightly opened, and the expansion valve 55 is closed.
  • the heater 43 is stopped, the main pump 42 is stopped, the sub pump 81 is driven, and the heat medium for temperature control is circulated. Further, each three-way valve is controlled so that the heat medium for temperature control circulates through the sub pump 81, the branch point 82, the heater core 44, the three-way valve 84, the branch point 85, the cold storage device 46, and the three-way valve 83 in this order. ..
  • the heat medium for air conditioning in the gas phase is compressed by the compressor 21 to become a high pressure, and is radiated by the outdoor heat exchanger 24 to be condensed and liquefied to a low temperature.
  • the liquid phase air-conditioning heat medium is expanded by the indoor expansion valve 25 to a low pressure, and by absorbing heat by the endothermic device 26, it evaporates and vaporizes to a high temperature.
  • the heat medium for temperature control becomes low in temperature by dissipating heat in the cold storage device 46, and becomes high in temperature by absorbing heat in the heater core 44.
  • the blower fan 14 is driven, and the air mix damper 15 closes the flow path 17 while adjusting the ratio of passing through the heater core 44.
  • the introduced air is cooled by the heater core 44, and cool air is supplied to the vehicle interior.
  • FIG. 19 is a diagram showing battery cooling + cooling operation (refrigeration cycle circuit) during charging.
  • the flow path through which the low-pressure air-conditioning heat medium passes is shown by a thick dotted line
  • the flow path through which the high-pressure air-conditioning heat medium passes is shown by a thick solid line.
  • the flow path through which the heat medium for temperature control passes is indicated by a thick broken line.
  • the battery cooling + cooling operation (refrigeration cycle circuit) at the time of charging in which the battery cooling and the cooling operation are executed by the refrigeration cycle circuit 12 in the state where the reserved charging is performed will be described.
  • the compressor 21 is driven with the outdoor expansion valve 23 fully opened, the indoor expansion valve 25 closed, and the expansion valve 55 slightly opened.
  • the heater 43 is stopped, the main pump 42 is driven, the sub pump 81 is stopped, and the heat medium for temperature control is circulated.
  • the heat medium for temperature control is the heat for temperature control in the main pump 42, the heater 43, the three-way valve 52, the three-way valve 61, the battery 45, the branch point 62, the three-way valve 63, the three-way valve 68, the branch point 66, and the heat exchanger 47.
  • Each three-way valve is controlled so as to circulate through the medium flow path 47A, the three-way valve 86, the branch point 87, the branch point 82, the heater core 44, the three-way valve 84, the branch point 53, and the branch point 54 in this order.
  • the heat medium for air conditioning in the gas phase is compressed by the compressor 21 to become a high pressure, and is radiated by the outdoor heat exchanger 24 to be condensed and liquefied to a low temperature.
  • the liquid phase air-conditioning heat medium is expanded by the expansion valve 55 to a low pressure, and by absorbing heat in the air-conditioning heat medium flow path 47B in the heat exchanger 47, it evaporates and vaporizes to a high temperature.
  • the heat medium for temperature control becomes low in temperature by radiating heat in the heat medium flow path 47A for heat control in the heat exchanger 47, and becomes high in temperature by absorbing heat in the heater core 44.
  • the blower fan 14 is driven, and the air mix damper 15 closes the flow path 17 while adjusting the ratio of passing through the heater core 44.
  • the introduced air is cooled by the heater core 44, and cool air is supplied to the vehicle interior.
  • the heater core 44 corresponds to the "second heat exchanger".
  • the heater core 44 is cooled by the temperature control heat medium cooled by the cold storage device 46. At this time, since the heater core 44 acts as an endothermic, the cooling operation using the cold storage energy can be performed. Further, both the battery 45 and the heater core 44 are cooled by the temperature control heat medium cooled by the heat exchanger 47 when the reserved charging is being executed. At this time, since the heater core 44 acts as an endothermic device, both battery cooling and cooling operation using the refrigeration cycle circuit 12 can be performed.
  • Heat medium flow path for temperature control, 47B ... Heat medium flow path for air conditioning, 51a ... Piping, 51b ... Piping, 51c ... Piping, 51d ... Piping, 51e ... Piping, 51f ... Piping, 51g ... Piping, 51h ... Piping, 51i ... Piping, 51j ... Piping, 51k ... Piping, 52 ... Three-way valve, 53 ... Branch point, 54 ... Branch point, 55 ... Expansion valve, 56 ... Branch point, 57 ... Branch point, 61 ... Three-way valve, 62 ... Branch point, 63 ... Three-way valve, 66 ... Branch point, 68 ... Three-way valve, 71 ... Controller, 72 ...

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  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • General Engineering & Computer Science (AREA)
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Abstract

Le problème décrit par la présente invention consiste à assurer un confort à l'intérieur d'un véhicule sans sacrifier le refroidissement de la batterie. La solution selon la présente invention porte sur un circuit de réglage de température (41) et sur un circuit à cycle de refroidissement (12). Le circuit de réglage de température (41) est doté d'une batterie (45), d'un équipement de stockage de froid (46) et d'un échangeur de chaleur (47). Le froid est stocké dans l'équipement de stockage de froid (46) par un milieu thermique de réglage de température qui a été refroidi par l'échangeur de chaleur (47) avant la mise en œuvre de la charge programmée de la batterie (45), et la batterie (45) est refroidie par le milieu thermique de réglage de température refroidi par l'équipement de stockage de froid (46) lorsque la charge programmée de la batterie (45) est mise en œuvre.
PCT/JP2021/006340 2020-03-27 2021-02-19 Dispositif de climatisation de véhicule WO2021192762A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202180020905.3A CN115552187A (zh) 2020-03-27 2021-02-19 车辆用空调装置

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Application Number Priority Date Filing Date Title
JP2020-058007 2020-03-27
JP2020058007A JP7502878B2 (ja) 2020-03-27 2020-03-27 車両用空気調和装置

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WO2021192762A1 true WO2021192762A1 (fr) 2021-09-30

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JP2023122096A (ja) * 2022-02-22 2023-09-01 サンデン株式会社 熱マネジメントシステム
JP2023122101A (ja) * 2022-02-22 2023-09-01 サンデン株式会社 熱マネジメントシステム

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JP2009090721A (ja) * 2007-10-04 2009-04-30 Calsonic Kansei Corp 車両用空調装置
JP2010104108A (ja) * 2008-10-22 2010-05-06 Mazda Motor Corp ハイブリッド車両の制御方法およびその装置
JP2012232730A (ja) * 2011-04-18 2012-11-29 Denso Corp 車両用温度調整装置、および車載用熱システム

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JP2009090721A (ja) * 2007-10-04 2009-04-30 Calsonic Kansei Corp 車両用空調装置
JP2010104108A (ja) * 2008-10-22 2010-05-06 Mazda Motor Corp ハイブリッド車両の制御方法およびその装置
JP2012232730A (ja) * 2011-04-18 2012-11-29 Denso Corp 車両用温度調整装置、および車載用熱システム

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