WO2020129645A1 - Dispositif de régulation de température d'équipement - Google Patents

Dispositif de régulation de température d'équipement Download PDF

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Publication number
WO2020129645A1
WO2020129645A1 PCT/JP2019/047390 JP2019047390W WO2020129645A1 WO 2020129645 A1 WO2020129645 A1 WO 2020129645A1 JP 2019047390 W JP2019047390 W JP 2019047390W WO 2020129645 A1 WO2020129645 A1 WO 2020129645A1
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WO
WIPO (PCT)
Prior art keywords
condenser
phase
liquid
evaporator
evaporators
Prior art date
Application number
PCT/JP2019/047390
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English (en)
Japanese (ja)
Inventor
康光 大見
功嗣 三浦
義則　毅
智子 東福寺
慎太郎 内海
嘉夫 松山
有吾 望月
鈴木　雄介
Original Assignee
株式会社デンソー
トヨタ自動車株式会社
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Application filed by 株式会社デンソー, トヨタ自動車株式会社 filed Critical 株式会社デンソー
Publication of WO2020129645A1 publication Critical patent/WO2020129645A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
    • F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
    • F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
    • F28D15/06—Control arrangements therefor
    • 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
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • 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
    • H01M10/651—Means for temperature control structurally associated with the cells characterised by parameters specified by a numeric value or mathematical formula, e.g. ratios, sizes or concentrations
    • H01M10/652—Means for temperature control structurally associated with the cells characterised by parameters specified by a numeric value or mathematical formula, e.g. ratios, sizes or concentrations characterised by gradients
    • 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
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
    • 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
    • H01M10/6567—Liquids
    • H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
    • 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
    • H01M10/6569—Fluids undergoing a liquid-gas phase change or transition, e.g. evaporation or condensation
    • 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
    • H01M10/657—Means for temperature control structurally associated with the cells by electric or electromagnetic means
    • H01M10/6571—Resistive heaters
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the present disclosure relates to a thermosiphon-type device temperature control device.
  • thermosiphon-type device temperature control device has been used to adjust the temperature of the target device.
  • a loop-type thermosiphon-type device temperature control device As an invention relating to such a device temperature control device, for example, the invention described in Patent Document 1 is known.
  • the battery temperature adjusting device described in Patent Document 1 has a thermosiphon circuit including an evaporator that is a battery temperature adjusting unit and a condenser that is a heat medium cooling unit, and adjusts the temperature of a battery that is a target device. doing.
  • the battery temperature control device of Patent Document 1 is configured to circulate the working fluid and cool the target device by changing the phase of the refrigerant that is the working fluid.
  • thermosiphon-type device temperature control device may be mounted on a vehicle or the like, and it is assumed that the thermosiphon-type device temperature control device may be tilted together with the vehicle. For example, when the vehicle is descending a downhill, the rear side in the traveling direction of the vehicle is located above the front side in the traveling direction of the vehicle.
  • the device temperature control device has a plurality of evaporators arranged in the front-rear direction, and is in a tilted state together with the plurality of evaporators, like a vehicle.
  • the liquid-phase refrigerant in the temperature control device is affected by gravity and collects on the lower side of the thermosiphon circuit. That is, when the equipment temperature control device is inclined, it is assumed that the circulation of the working fluid is hindered depending on the degree of the inclination, and the equipment temperature control device malfunctions.
  • a condenser As a configuration for maintaining the operation of the device temperature control device when tilted, it may be possible to arrange a condenser in front of and behind the vehicle. In either case of inclining in the front-rear direction, one of the condensers arranged before and after the equipment temperature control device is located above the evaporator. Therefore, it is possible to realize the circulation of the working fluid through the one condenser, and it is possible to cope with the inclination in the front-rear direction.
  • the present disclosure has been made in view of these points, and an object of the present disclosure is to provide an equipment temperature control device that can cope with an inclination with respect to the arrangement direction of evaporators while suppressing an increase in mounting space.
  • the device temperature control device is a thermosyphon-type device temperature control device that adjusts the temperature of the target device by the phase change between the liquid phase and the gas phase of the working fluid.
  • the device temperature control device includes a plurality of evaporators, a first condenser and a second condenser, a gas phase flow path section, and a liquid phase flow path section.
  • the multiple evaporators are arranged side by side in a predetermined arrangement direction, and when the target device is cooled, it absorbs heat from the target device and evaporates the working fluid in the liquid phase.
  • the first condenser and the second condenser are arranged on one side in the arrangement direction above the plurality of evaporators in the direction of gravity, and condense the vapor-phase working fluid evaporated in the evaporator when the target device is cooled.
  • the gas-phase flow path section guides the gas-phase working fluid evaporated by the plurality of evaporators to the first condenser or the second condenser.
  • the liquid-phase flow path section guides the liquid-phase working fluid condensed in the first condenser or the second condenser to the plurality of evaporators.
  • the gas-phase flow path section has a gas-phase connecting pipe, a first gas-phase connecting pipe, and a second gas-phase connecting pipe.
  • the vapor phase connection pipe extends in the array direction and connects the outlets of the plurality of evaporators.
  • the first vapor-phase connection pipe connects the end of the vapor-phase connection pipe on one side in the arrangement direction to the fluid inlet of the first condenser.
  • the second gas phase connection pipe connects the other end of the gas phase connection pipe in the arrangement direction to the fluid inlet of the second condenser.
  • the liquid phase flow path portion has a liquid phase connecting pipe, a first liquid phase connecting pipe, and a second liquid phase connecting pipe.
  • the liquid phase connection pipe extends in the arrangement direction and connects the inlets of the plurality of evaporators.
  • the first liquid phase connecting pipe connects the fluid outlet of the first condenser and the end of the liquid phase connecting pipe on one side in the arrangement direction.
  • the second liquid phase connection pipe connects the fluid outlet of the second condenser and the end of the liquid phase connection pipe on the other side in the arrangement direction.
  • the second condenser when the first condenser and the second condenser are inclined so as to move downward in the direction of gravity, evaporates the evaporator located at the uppermost side in the direction of gravity among the plurality of evaporators to the highest position.
  • it When it is used as a vessel, it is arranged at a position higher than the inlet of the uppermost evaporator.
  • the working fluid can be circulated between the first condenser and the plurality of evaporators via the first gas phase connection pipe and the first liquid phase connection pipe. Further, according to the device temperature control device, the working fluid can be circulated between the second condenser and the plurality of evaporators via the second gas phase connection pipe and the second liquid phase connection pipe.
  • the device temperature control device can adjust the temperature of the target device by changing the working fluid into a liquid phase and a gas phase in response to the case where the device temperature is inclined with respect to the arrangement direction.
  • the second condenser is arranged on the one side in the arrangement direction together with the first condenser. For this reason, the device temperature control device can cope with the inclination with respect to the arrangement direction while suppressing an increase in the mounting space and the number of parts as the device.
  • FIG. 1 is an overall configuration diagram of a device temperature control device according to the first embodiment
  • FIG. 2 is a schematic diagram showing the arrangement of the device temperature control device with respect to the vehicle
  • FIG. 3 is a perspective view showing the arrangement of the assembled battery with respect to the evaporator in the device temperature control device
  • FIG. 4 is a schematic diagram showing a normal state of the device temperature control apparatus according to the first embodiment
  • FIG. 5 is a schematic diagram showing an upslope state of the device temperature control apparatus according to the first embodiment
  • FIG. 6 is a schematic diagram showing a downward inclination state of the device temperature control apparatus according to the first embodiment
  • FIG. 1 is an overall configuration diagram of a device temperature control device according to the first embodiment
  • FIG. 2 is a schematic diagram showing the arrangement of the device temperature control device with respect to the vehicle
  • FIG. 3 is a perspective view showing the arrangement of the assembled battery with respect to the evaporator in the device temperature control device
  • FIG. 4 is a schematic diagram showing a normal state of the device temperature control
  • FIG. 7 is a schematic diagram showing a condenser unit in the second embodiment
  • FIG. 8 is a schematic view showing the arrangement of the flow rate adjusting valve in the third embodiment
  • FIG. 9 is a schematic view showing the arrangement of shutter devices in the fourth embodiment.
  • FIG. 10 is a perspective view which shows arrangement
  • thermosiphon-type device temperature control device 1 (hereinafter, referred to as device temperature control device 1) according to the first embodiment is a battery pack installed in a vehicle C. It is used as a device for adjusting the temperature.
  • the vehicle C equipped with the device temperature control device 1 may be, for example, a vehicle that can be driven by an electric motor for traveling (not shown) using the battery pack BP as a power source.
  • the device temperature adjusting device 1 can be applied to the assembled battery BP of an electric vehicle or a hybrid vehicle as a target device.
  • the assembled battery BP is composed of a laminated body in which a plurality of rectangular parallelepiped battery cells BC are arranged in layers, and functions as a target device.
  • the plurality of battery cells BC are electrically connected in series.
  • Each battery cell BC is composed of a chargeable/dischargeable secondary battery (for example, a lithium ion battery or a lead storage battery).
  • the outer shape of the battery cell BC is not limited to the rectangular parallelepiped shape, and may be another shape such as a cylindrical shape. Further, the assembled battery BP may include battery cells BC electrically connected in parallel.
  • the battery pack BP configured in this way self-heats due to power supply and the like while the vehicle C is running. If the assembled battery BP becomes excessively hot due to self-heating, the deterioration of the battery cells BC is promoted.
  • the assembled battery BP if the temperature of each battery cell BC varies, the degree of progress of deterioration of each battery cell BC becomes uneven. Since the assembled battery BP includes a series connection of battery cells BC, the input/output characteristics of the entire assembled battery BP depend on the battery characteristics of the most deteriorated battery cell BC among the battery cells BC. It is determined.
  • the device temperature control apparatus 1 is applied to realize temperature adjustment and temperature equalization of an assembled battery BP as a target device, and includes a fluid circulation circuit 10 in which a refrigerant as a working fluid circulates.
  • the fluid circulation circuit 10 is a heat pipe that performs heat transfer by evaporation and condensation of a refrigerant as a working fluid, and a flow path through which a vapor-phase refrigerant flows and a liquid-phase refrigerant. It is configured as a loop-type thermosiphon, which is separated from the flow path through which the air flows.
  • the fluid circulation circuit 10 includes a plurality of evaporators 20, a first condenser 30, a second condenser 35, a gas phase flow passage portion 40, and a liquid phase flow passage portion 50. It is composed of.
  • the fluid circulation circuit 10 connects the plurality of evaporators 20, the first condenser 30, the second condenser 35, the gas phase flow passage portion 40, and the liquid phase flow passage portion 50 to each other to form a closed annular fluid. It constitutes a circuit.
  • the inside of the fluid circulation circuit 10 is filled with a refrigerant as a working fluid in a state where the inside is evacuated.
  • a refrigerant eg, R134a, R1234yf
  • a vapor compression refrigeration cycle is used as the working fluid that circulates in the fluid circulating circuit 10.
  • the working fluid not only a CFC-based refrigerant but also another refrigerant such as carbon dioxide or an antifreezing liquid can be used.
  • the evaporator 20 is a heat exchanger that exchanges heat between the refrigerant inside the evaporator 20 and the assembled battery BP when the temperature of the assembled battery BP that is the target device is adjusted.
  • the evaporator 20 absorbs heat from the battery pack BP to evaporate the liquid phase refrigerant when the battery pack BP which is the target device is cooled.
  • the device temperature control apparatus 1 has a first evaporator 20A, a second evaporator 20B, and a third evaporator 20C as a plurality of evaporators 20. ing.
  • the first evaporator 20A, the second evaporator 20B, and the third evaporator 20C are arranged in this order from the front of the vehicle toward the rear. Therefore, the front-back direction of the vehicle corresponds to the arrangement direction.
  • the front side of the vehicle C corresponds to one side in the arrangement direction, and the rear side of the vehicle C corresponds to the other side in the arrangement direction.
  • the first evaporator 20A to the third evaporator 20C are arranged at the same level in the gravity direction. That is, the first evaporator 20A to the third evaporator 20C are arranged on the same horizontal plane.
  • the first to third evaporators 20A to 20C are names for distinguishing the positional relationship in the vehicle front-rear direction (that is, the arrangement direction) and have the same configuration.
  • the evaporator 20 is used as a general term when it is not necessary to distinguish the positional relationship in the arrangement direction.
  • the evaporator 20 has a main body 21 formed in the shape of a hollow rectangular parallelepiped, an inflow port 22, and an outflow port 23.
  • the body 21 is made of, for example, a metal material having excellent thermal conductivity such as aluminum or copper.
  • a material other than metal can be used as long as it is a material having excellent thermal conductivity.
  • the inflow port 22 is a part to which the liquid-phase refrigerant circulating in the fluid circulation circuit 10 is supplied to the inside of the main body 21 of the evaporator 20 when the assembled battery BP is cooled.
  • a liquid phase flow path section 50 is connected to the inflow port 22.
  • the inflow port 22 is arranged on one side surface (for example, right side surface) of the main body portion 21 at a lower side portion in the gravity direction.
  • the liquid-phase refrigerant in the fluid circulation circuit 10 is supplied from the liquid-phase flow path section 50 to the main body section 21 of the evaporator 20 via the inflow port 22.
  • the outlet 23 is a portion where the gas-phase refrigerant evaporated by the heat absorption from the battery pack BP flows out of the evaporator 20 when the battery pack BP is cooled.
  • a gas phase flow passage 40 is connected to the outlet 23.
  • the outflow port 23 is arranged on the upper side in the direction of gravity on one side surface (for example, the right side surface) of the main body 21. Therefore, on the one side surface of the main body 21 of the evaporator 20, the outflow port 23 is arranged on the upper side in the gravity direction with respect to the inflow port 22.
  • the main body 21 of the evaporator 20 is arranged between the assembled batteries BP arranged in the front-rear direction, which is the arrangement direction, and is the assembled battery BP that is the target device and the working fluid. This is a part for exchanging heat with the refrigerant.
  • the battery pack BP is arranged along the front side surface and the rear side surface of the box-shaped main body 21.
  • the front side surface and the rear side surface of the main body portion 21 constitute a battery contact surface.
  • the assembled battery BP is arranged such that one side surface of each battery cell BC is in thermal contact with the battery contact surface of the main body portion 21.
  • the battery pack BP is arranged so that the terminal CT of each battery cell BC forming the battery pack is on the upper side in the gravity direction.
  • the side surface perpendicular to the surface on which the terminal CT is arranged is in contact with the battery contact surface of the main body 21 of the evaporator 20 via the heat conductive sheet.
  • the battery cells BC forming the assembled battery BP are arranged in a direction intersecting the direction of gravity (vehicle width direction).
  • the device temperature adjusting device 1 is the target device due to the latent heat of vaporization of the liquid-phase refrigerant.
  • the assembled battery BP can be cooled.
  • a heat conductive sheet is arranged on the battery contact surface of the main body 21.
  • the heat conductive sheet ensures insulation between the main body 21 and the battery pack BP and suppresses thermal resistance between the main body 21 and the battery pack BP.
  • the first condenser 30 is arranged in the equipment temperature control device 1 in front of the plurality of evaporators 20 in the vehicle and above the plurality of evaporators 20 in the direction of gravity. Has been done.
  • the first condenser 30 is a heat exchanger that functions as a heat radiating unit that condenses by radiating heat of the vapor-phase refrigerant that has evaporated inside the evaporator 20 when the battery pack BP is cooled.
  • the first condenser 30 is composed of an air-refrigerant heat exchanger, and heats the gas-phase refrigerant flowing through the fluid circulation circuit 10 and the air outside the vehicle compartment (hereinafter referred to as outside air OA). By exchanging the heat, the heat of the vapor phase refrigerant is radiated to the outside air OA.
  • the vehicle C according to the first embodiment is provided with an outside air introduction portion (not shown), and the outside air introduction portion allows the outside air OA to pass through the first condenser 30 from the front side of the vehicle C toward the rear side. It is configured.
  • the first condenser 30 is made of, for example, a metal or alloy having excellent thermal conductivity such as aluminum or copper.
  • a material other than metal can be used as long as it is a material having excellent thermal conductivity.
  • a first fluid inlet 31 is arranged on the upper side of the first condenser 30 in the direction of gravity.
  • the first fluid inlet 31 is connected to an end of the vapor phase flow path 40 on the upper side in the direction of gravity (one end of a first vapor phase connection pipe 43 described later). Therefore, the first fluid inlet 31 is a fluid inlet into which the vapor-phase refrigerant evaporated in the plurality of evaporators 20 flows into the inside of the first condenser 30 via the vapor-phase flow passage portion 40.
  • the first fluid outlet 32 is arranged on the lower side in the gravity direction of the first condenser 30.
  • the first fluid outlet 32 is located on the lower side in the gravity direction with respect to the first fluid inlet 31.
  • the first fluid outlet 32 is connected to an upper end of the liquid phase flow path portion 50 in the direction of gravity (one end of a first liquid phase connection pipe 53 described later). Therefore, the first fluid outlet 32 is a fluid outlet through which the liquid-phase refrigerant condensed inside the first condenser 30 flows out to the liquid-phase flow path section 50.
  • the second condenser 35 is arranged in front of the plurality of evaporators 20 in the vehicle and above the plurality of evaporators 20 in the direction of gravity.
  • the second condenser 35 functions as a heat radiating unit that condenses by radiating heat of the vapor-phase refrigerant evaporated inside the evaporator 20 when the assembled battery BP is cooled.
  • the second condenser 35 is composed of an air-refrigerant heat exchanger, and radiates the heat of the gas-phase refrigerant to the outside air OA by exchanging heat between the gas-phase refrigerant flowing through the fluid circulation circuit 10 and the outside air OA. I am making it.
  • the constituent material of the second condenser 35 is the same as that of the first condenser 30.
  • the 2nd condenser 35 concerning a 1st embodiment is arranged rather than the 1st condenser 30 at the vehicle back side, and it is rather than the inflow port 22 of 3rd evaporator 20C in the downward inclination state mentioned later. It is arranged to be high.
  • the second condenser 35 is located on the downstream side of the first condenser 30 with respect to the flow of the outside air OA introduced by the outside air introduction unit described above. That is, in the first embodiment, the second condenser 35 can radiate heat to the outside air OA by using the outside air introduction part common to the first condenser 30. Thereby, the equipment temperature control device 1 can suppress an increase in the arrangement space in the vehicle C from the viewpoint of the arrangement of the outside air introduction unit.
  • the second condenser 35 in the second condenser 35 according to the first embodiment, at least the heat exchange portion that exchanges heat with the outside air OA is formed smaller than the first condenser 30. That is, the condensing capacity of the second condenser 35 is configured to be lower than the condensing capacity of the first condenser 30.
  • the second fluid inlet 36 is arranged on the upper side in the gravity direction of the second condenser 35.
  • the second fluid inlet 36 is connected to an end portion of the vapor-phase flow path portion 40 (one end portion of a second vapor-phase connection pipe 44 described later). Therefore, the second fluid inlet 36 is a fluid inlet into which the vapor-phase refrigerant evaporated in the plurality of evaporators 20 flows into the inside of the second condenser 35 via the vapor-phase flow passage portion 40.
  • a second fluid outlet 37 is arranged on the lower side of the second condenser 35 in the direction of gravity.
  • the second fluid outlet 37 is located below the second fluid inlet 36 in the gravity direction.
  • the second fluid outlet 37 is connected to an end portion of the liquid phase flow path portion 50 (one end portion of a second liquid phase connection pipe 54 described later). Therefore, the second fluid outlet 37 is a fluid outlet through which the liquid-phase refrigerant condensed inside the second condenser 35 flows out to the liquid-phase flow path section 50.
  • the vapor-phase flow passage portion 40 is a refrigerant flow passage that guides the vapor-phase refrigerant evaporated in the plurality of evaporators 20 to at least one of the first condenser 30 and the second condenser 35.
  • the vapor phase flow path portion 40 includes a vapor phase connection pipe 41, a first vapor phase connection pipe 43, and a second vapor phase connection pipe 44.
  • the gas phase connection pipe 41 extends in the vehicle front-rear direction so as to face the outlets 23 of the plurality of evaporators 20 in the gas phase flow path portion 40, and has a plurality of connection portions 42.
  • the plurality of connecting portions 42 are respectively connected to the outlets 23 of the plurality of evaporators 20 and extend horizontally from the outlets 23 of the respective evaporators 20. Therefore, the gas phase connection pipe 41 extends in the arrangement direction of the evaporators 20 and connects the outlets 23 of the plurality of evaporators 20.
  • the end of the vapor phase connecting pipe 41 of the vapor phase flow passage 40 on the vehicle front side is arranged at a position facing the outlet 23 of the first evaporator 20A.
  • the end of the vapor phase connecting pipe 41 on the vehicle front side corresponds to the end of the vapor phase connecting pipe 41 on one side in the arrangement direction.
  • the end of the gas-phase connecting pipe 41 on the vehicle rear side is arranged at a position facing the outlet 23 of the third evaporator 20C.
  • the end of the vapor phase connecting pipe 41 on the vehicle rear side corresponds to the other end of the vapor phase connecting pipe 41 in the arrangement direction.
  • the vapor-phase connection pipe 41 can be said to be a portion of the vapor-phase flow path portion 40 where the vapor-phase refrigerant evaporated in the plurality of evaporators 20 joins.
  • the first vapor-phase connection pipe 43 is a portion of the vapor-phase flow passage portion 40 that connects the end of the vapor-phase connection pipe 41 on the vehicle front side to the first fluid inlet 31 of the first condenser 30. ..
  • the first gas phase connection pipe 43 extends from the front end of the gas phase connection pipe 41 toward the vehicle front side, and then extends upward toward the first fluid inlet 31 of the first condenser 30. Therefore, according to the device temperature adjusting device 1, the gas-phase refrigerant collected in the gas-phase connecting pipe 41 is passed through the first gas-phase connecting pipe 43 to the first fluid inlet 31 of the first condenser 30. Can lead to.
  • the second vapor-phase connection pipe 44 is a portion of the vapor-phase flow passage portion 40 that connects the end of the vapor-phase connection pipe 41 on the vehicle rear side and the second fluid inlet 36 of the second condenser 35. .. Therefore, according to the device temperature control apparatus 1, the gas-phase refrigerant collected in the gas-phase connecting pipe 41 is supplied to the second fluid inlet 36 of the second condenser 35 via the second gas-phase connecting pipe 44. I can guide you.
  • the second gas phase connection pipe 44 extends toward the vehicle front side at a position eccentric to the gas phase connection pipe 41 in the vehicle width direction, and then extends to the second fluid inlet 36 of the second condenser 35. It extends upward.
  • the liquid-phase flow passage portion 50 is a refrigerant flow passage that guides the liquid-phase refrigerant condensed in the first condenser 30 or the second condenser 35 to the plurality of evaporators 20.
  • the liquid phase flow path section 50 includes a liquid phase connection pipe 51, a first liquid phase connection pipe 53, and a second liquid phase connection pipe 54.
  • the liquid phase connection pipe 51 extends in the vehicle front-rear direction corresponding to the arrangement direction so as to face the inlets 22 of the plurality of evaporators 20 in the liquid phase flow path portion 50. It has a plurality of connecting portions 52.
  • the plurality of connecting portions 52 are respectively connected to the inflow ports 22 of the plurality of evaporators 20 and extend horizontally from the inflow ports 22 of the respective evaporators 20. Therefore, the liquid phase connection pipe 51 extends in the arrangement direction of the evaporators 20 and connects the inlets 22 of the plurality of evaporators 20.
  • the front end of the liquid phase connection pipe 51 of the liquid phase flow passage portion 50 on the vehicle front side is arranged at a position facing the inflow port 22 of the first evaporator 20A.
  • the end of the liquid phase connecting pipe 51 on the vehicle front side corresponds to the end of the liquid phase connecting pipe 51 on one side in the arrangement direction.
  • the end of the liquid phase connecting pipe 51 on the vehicle rear side is arranged at a position facing the inflow port 22 of the third evaporator 20C.
  • the end of the liquid phase connecting pipe 51 on the vehicle rear side corresponds to the other end of the liquid phase connecting pipe 51 in the arrangement direction.
  • the liquid-phase connection pipe 51 is a part of the liquid-phase flow path portion 50 in which the liquid-phase refrigerant condensed in the first condenser 30 or the second condenser 35 is distributed to the plurality of evaporators 20. You can
  • the first liquid-phase connection pipe 53 is a part of the liquid-phase flow path part 50 that connects the first fluid outlet 32 of the first condenser 30 and the end of the liquid-phase connection pipe 51 on the vehicle front side. ..
  • the first liquid phase connection pipe 53 extends from the front end of the liquid phase connection pipe 51 to the vehicle front side, and then extends upward toward the first fluid outlet 32 of the first condenser 30. Therefore, according to the device temperature control device 1, the liquid-phase refrigerant condensed in the first condenser 30 can be supplied to the liquid-phase connecting pipe 51 and guided to the outlets 23 of the plurality of evaporators 20.
  • the second liquid-phase connection pipe 54 is a part of the liquid-phase flow path portion 50 that connects the second fluid outlet 37 of the second condenser 35 and the end of the liquid-phase connection pipe 51 on the vehicle rear side. .. Therefore, according to the device temperature control apparatus 1, the liquid-phase refrigerant condensed in the second condenser 35 can be supplied to the liquid-phase connecting pipe 51 and guided to the outlets 23 of the plurality of evaporators 20.
  • the second liquid phase connection pipe 54 extends toward the vehicle front side at a position eccentric to the liquid phase connection pipe 51 in the vehicle width direction, and then extends to the second fluid outlet 37 of the second condenser 35. It extends upward.
  • the amount of the refrigerant filled in the fluid circulation circuit 10 is set so that the liquid level FL of the refrigerant inside the main body 21 of each evaporator 20 becomes an appropriate liquid level.
  • the refrigerant is filled in the fluid circulation circuit 10 so that the liquid level position of the refrigerant inside the main body 21 of each evaporator 20 becomes a predetermined target liquid level.
  • the device temperature control device 1 when cooling the battery pack BP will be described in detail.
  • the device temperature control device 1 is in a normal state in which a plurality of evaporators 20 are horizontally arranged along the front-rear direction of the vehicle, as shown in FIG.
  • the second vapor phase connection pipe 44 and the second liquid phase connection pipe 54 may be illustrated by broken lines. This is to clearly distinguish the second vapor phase connection pipe 44 and the second liquid phase connection pipe 54 from the first vapor phase connection pipe 43 and the first liquid phase connection pipe 53 in the figure.
  • the device temperature controller 1 when the temperature of the assembled battery BP rises due to self-heating of the assembled battery BP, a part of the liquid-phase refrigerant is removed from the assembled battery BP inside the main body 21 of each evaporator 20. Evaporates due to the heat of. At this time, the battery pack BP is cooled by the latent heat of vaporization of the liquid phase refrigerant in each evaporator 20, and the temperature of the battery pack BP is lowered.
  • each evaporator 20 the refrigerant undergoes a phase change from a liquid phase to a gas phase, so its specific gravity becomes small. Therefore, the vapor-phase refrigerant evaporated in each evaporator 20 moves upward inside the main body portion 21 and flows out from the outlet 23 to the vapor-phase connection pipe 41 via the connection portion 42.
  • a part of the gas-phase refrigerant in the gas-phase connection pipe 41 flows toward the front side of the vehicle and flows into the first condenser 30 via the first gas-phase connection pipe 43. Then, another part of the gas-phase refrigerant in the gas-phase connection pipe 41 flows toward the vehicle rear side and flows into the second condenser 35 via the second gas-phase connection pipe 44.
  • the heat of the vapor phase refrigerant is radiated to the outside air OA which is another heat medium.
  • the vapor-phase refrigerant is condensed inside the first condenser 30 to become a liquid-phase refrigerant. Since the specific gravity of the refrigerant increases due to this phase change, the liquid-phase refrigerant condensed inside the first condenser 30 is due to its own weight from the first fluid outlet 32 of the first condenser 30 to the first liquid-phase connecting pipe 53. Spill to.
  • the liquid-phase refrigerant that has flowed out to the first liquid-phase connection pipe 53 reaches the liquid-phase connection pipe 51 and flows into the inside of the main body portion 21 of each evaporator 20 via the plurality of connection portions 52.
  • the heat of the vapor phase refrigerant is radiated to the outside air OA which is another heat medium. Therefore, the vapor phase refrigerant is condensed inside the second condenser 35 to become a liquid phase refrigerant.
  • the liquid-phase refrigerant condensed in the second condenser 35 flows out from the second fluid outlet 37 to the second liquid-phase connecting pipe 54 and reaches the liquid-phase connecting pipe 51. Then, the liquid-phase refrigerant in the liquid-phase connecting pipe 51 flows into the main body 21 of each evaporator 20 via the plurality of connecting portions 52.
  • the liquid-phase refrigerant that has flowed into each evaporator 20 from the first condenser 30 or the second condenser 35 has a battery pack BP inside the evaporator 20 when the temperature of the battery pack BP is higher than the boiling point of the refrigerant. Evaporates due to heat from.
  • the refrigerant circulates between the evaporators 20 and the first condensers 30 or the second condensers 35 while changing the phase between the gas phase state and the liquid phase state.
  • Heat can be transported from the evaporator 20 to the first condenser 30 or the second condenser 35. Then, in the first condenser 30 and the second condenser 35, the heat of the transported refrigerant can be radiated to the outside air OA as another heat medium.
  • the device temperature control device 1 radiates the heat of the assembled battery BP, which has absorbed the heat in each evaporator 20, to the outside air OA in the first condenser 30 or the second condenser 35 via the refrigerant that is the working fluid. Therefore, the assembled battery BP can be cooled.
  • the heat exchanging portion of the second condenser 35 is formed smaller than the heat exchanging portion of the first condenser 30, and the heat exchange portion lower than that of the first condenser 30 is condensed. Is configured to be competent.
  • the cooling function of the assembled battery BP is referred to as the plurality of evaporators 20, the first vapor phase connection pipe 43, the first condenser 30, the first liquid phase connection pipe 53, and the plurality of evaporators 20. This is ensured by the circulation of the refrigerant that flows in order.
  • the circulation of the refrigerant flowing in the order of the plurality of evaporators 20, the second gas phase connection piping 44, the second condenser 35, the second liquid phase connection piping 54, and the plurality of evaporators 20 is from the first condenser 30. It operates so as to compensate for the pressure loss in the pipe between the third evaporator 20C on the rear side of the vehicle.
  • the up-tilt state refers to a state in which the plurality of evaporators 20 are positioned higher in the direction of gravity as the evaporators 20 are positioned on the vehicle front side.
  • This uphill state occurs, for example, when the vehicle on which the device temperature control device 1 is mounted is climbing uphill.
  • the first evaporator 20A is located at the highest position and the third evaporator 20C is located at the lowest position.
  • the liquid-phase refrigerant collects on the lower side in the gravity direction in the fluid circulation circuit 10. Then, as shown in FIG. 5, as a result of the ascending slope state, it is assumed that the outlet 23 of the third evaporator 20C is located below the liquid surface position FL.
  • the inside of the third evaporator 20C is filled with the liquid-phase refrigerant, and the liquid-phase refrigerant flows out from the outlet 23 of the third evaporator 20C to the gas-phase connecting pipe 41.
  • the liquid-phase refrigerant gathers on the lower side in the gravity direction in the gas-phase flow path portion 40, and thus fills and blocks the vehicle rear side of the second gas-phase connection pipe 44. Will end up.
  • the device temperature control device 1 cannot supply the vapor phase refrigerant from the plurality of evaporators 20 to the second condenser 35. That is, in the device temperature control device 1, in a rising inclination state, the refrigerant may not be able to circulate through the second condenser 35 in some cases.
  • the vehicle front side of the vapor phase connecting pipe 41 is It is located above the position FL. That is, since the connection position between the vapor phase connecting pipe 41 and the first vapor phase connecting pipe 43 is located above the liquid level position FL, the first vapor phase connecting pipe 43 is not blocked by the liquid phase refrigerant. Absent.
  • the first condenser 30 is located above the gravity direction in the device temperature adjusting device 1, so that the vapor-phase refrigerant is transferred to the first vapor-phase connecting pipe 43 through the first vapor-phase connecting pipe 43. It flows into the condenser 30.
  • the heat of the vapor-phase refrigerant is radiated to the outside air OA, and the vapor-phase refrigerant is condensed to become the liquid-phase refrigerant.
  • the condensed liquid-phase refrigerant flows out to the lower side in the gravity direction from the first fluid outlet 32 of the first condenser 30 due to its own weight.
  • the liquid-phase refrigerant flowing out of the first condenser 30 flows into the liquid-phase connecting pipe 51 via the first liquid-phase connecting pipe 53.
  • the liquid phase connecting pipe 51 is inclined so as to be positioned higher in the direction of gravity toward the front side of the vehicle according to the posture of the device temperature adjusting device 1.
  • the liquid-phase refrigerant flowing into the liquid-phase connecting pipe 51 flows from the vehicle front side toward the rear side according to its own weight and is distributed to the first evaporator 20A to the third evaporator 20C.
  • the equipment temperature adjusting device 1 in the ascending slope state, even when a part of the second vapor phase connection pipe 44 is filled with the liquid phase refrigerant, the first condenser 30 and the plurality of evaporators 20 are connected. A refrigerant can be circulated between them. That is, the device temperature control apparatus 1 can cool the assembled battery BP by the latent heat of vaporization of the liquid phase refrigerant in each evaporator 20 even in such an ascending slope state.
  • the device temperature control apparatus 1 suppresses the variation in the cooling performance of the battery pack BP in the first evaporator 20A to the third evaporator 20C even in the ascending slope state and suppresses the deterioration of the input/output characteristics of the battery pack BP. can do.
  • the downward inclination state refers to a state in which, with respect to the plurality of evaporators 20, the evaporators 20 located closer to the vehicle front side are positioned lower in the gravity direction.
  • This down-tilt state occurs, for example, when the vehicle on which the device temperature control device 1 is mounted is downhill, and the first condenser 30 leans so as to move downward in the direction of gravity. Equivalent to. As shown in FIG. 6, in the equipment temperature control device 1, the first evaporator 20A is located at the lowest position and the third evaporator 20C is located at the highest position. Therefore, in this downwardly inclined state, the third evaporator 20C corresponds to the uppermost evaporator.
  • the liquid-phase refrigerant in the fluid circulation circuit 10 is affected by gravity and gathers in the lower part of the fluid circulation circuit 10. ..
  • the liquid-phase refrigerant inside the fluid circulation circuit 10 collects on the first evaporator 20A side in front of the vehicle.
  • the outlet 23 of the first evaporator 20A is located below the liquid level FL as a result of the downward inclination.
  • the inside of the first evaporator 20A is filled with the liquid-phase refrigerant, and the liquid-phase refrigerant flows out from the outlet 23 of the first evaporator 20A.
  • the liquid-phase refrigerant When flowing out from the outlet 23 of the first evaporator 20A, the liquid-phase refrigerant collects on the lower side in the gravity direction of the gas-phase flow path portion 40, and thus fills the lower-side portion of the first gas-phase connection pipe 43 in the gravity direction. Will be blocked.
  • the device temperature control apparatus 1 cannot supply the vapor phase refrigerant from the plurality of evaporators 20 to the first condenser 30. That is, in the device temperature adjusting device 1, in the downward inclination state, the refrigerant may not be able to circulate through the first condenser 30 in some cases.
  • the vehicle rear side of the vapor phase connecting pipe 41 is at the liquid level. It is located above the position FL. That is, since the connection position between the gas phase connection pipe 41 and the second gas phase connection pipe 44 is located above the liquid level position FL, the second gas phase connection pipe 44 is not blocked by the liquid phase refrigerant. Absent.
  • the self-heating of the battery pack BP causes a part of the liquid-phase refrigerant to evaporate due to the heat from the battery pack BP inside each evaporator 20. It flows into the phase connection pipe 41.
  • the gas-phase connecting pipe 41 In the descending inclination state, the gas-phase connecting pipe 41 is positioned higher in the direction of gravity toward the vehicle rear side, so that the gas-phase refrigerant flows through the gas-phase connecting pipe 41 toward the vehicle rear side and the gas-phase flow. They gather at the rear portion of the vehicle on the road portion 40.
  • the vapor-phase refrigerant gathers in the vehicle rear portion of the vapor-phase flow path portion 40, the vapor-phase refrigerant flows into the second vapor-phase connection pipe 44, and the second vapor of the second condenser 35 is discharged. It flows to the fluid inlet 36.
  • the heat of the vapor phase refrigerant is radiated to the outside air OA, and the vapor phase refrigerant is condensed to become the liquid phase refrigerant. Due to its own weight, the condensed liquid-phase refrigerant flows out from the second fluid outlet 37 of the second condenser 35 to the lower side in the direction of gravity and into the second liquid-phase connection pipe 54.
  • the second liquid phase connecting pipe 54 is also inclined according to the posture of the device temperature adjusting device 1 so as to be positioned higher in the gravity direction toward the vehicle rear side. Since the second liquid phase connection pipe 54 is connected to the end portion of the liquid phase connection pipe 51 on the vehicle rear side, the liquid phase refrigerant needs to flow at least up to the inflow port 22 of the third evaporator 20C against the inclination. is there.
  • the second condenser 35 of the device temperature control apparatus 1 is located at a position higher than the inflow port 22 of the third evaporator 20C, which is the uppermost evaporator, in the downward tilted state, as shown in FIG. doing.
  • the second condenser 35 has a height of the third evaporator 20 ⁇ /b>C so as to be high enough to secure a head of the liquid-phase refrigerant capable of circulating the refrigerant through the second condenser 35 in the downward inclined state.
  • the inflow port 22 is also installed at a sufficiently high position.
  • the liquid-phase refrigerant that has flowed into the liquid-phase connection pipe 51 flows to the end of the second liquid-phase connection pipe 54 on the vehicle rear side and flows into the liquid-phase connection pipe 51.
  • the liquid-phase refrigerant that has flowed into the liquid-phase connecting pipe 51 flows from the vehicle rear side toward the front according to its own weight due to the inclination of the liquid-phase connecting pipe 51, and the third evaporator 20C, the second evaporator 20B, and the second evaporator 20B.
  • One condenser 30 flows in order.
  • the device condenser 1 and the plurality of evaporators 20 are connected.
  • a refrigerant can be circulated between them. That is, the device temperature control apparatus 1 can cool the assembled battery BP by the latent heat of vaporization of the liquid-phase refrigerant in each evaporator 20 even in such a downward sloping state.
  • the device temperature control apparatus 1 suppresses the variation in the cooling performance of the battery pack BP in the first evaporator 20A to the third evaporator 20C even in the downward slope state and suppresses the deterioration of the input/output characteristics of the battery pack BP. can do.
  • the device temperature control device 1 includes the plurality of evaporators 20, the first condenser 30, the second condenser 35, the gas phase flow passage portion 40, and the liquid phase flow. And a road portion 50.
  • the device temperature control apparatus 1 evaporates the refrigerant in the plurality of evaporators 20 and condenses the refrigerant in the first condenser 30 or the second condenser 35, thereby making it possible to cool the liquid phase and the vapor of the refrigerant as the working fluid.
  • the temperature of the battery pack BP can be adjusted by changing the phase.
  • the said apparatus temperature control apparatus 1 has both the 1st condenser 30 and the 2nd condenser 35 at the vehicle front side, and a refrigerant
  • the path in which the refrigerant circulates between the first condenser 30 and the plurality of evaporators 20 is configured to include a first gas phase connection pipe 43 and a first liquid phase connection pipe 53.
  • the path in which the refrigerant circulates between the second condenser 35 and the plurality of evaporators 20 is configured to include the second vapor phase connection pipe 44 and the second liquid phase connection pipe 54.
  • the device temperature control apparatus 1 can condense the vapor-phase refrigerant and circulate the refrigerant in both the first condenser 30 and the second condenser 35.
  • the battery pack BP can be reliably cooled by the evaporator 20 of FIG.
  • the device temperature control apparatus 1 can suppress variations in the cooling performance of the battery pack BP and suppress deterioration of the input/output characteristics of the battery pack BP.
  • the device temperature control apparatus 1 even when the device temperature control apparatus 1 is in the upward slope state and the second gas phase connection pipe 44 is blocked by the liquid phase refrigerant, according to the device temperature control apparatus 1,
  • the gas-phase refrigerant can be supplied to the first condenser 30 from the one-gas phase connection pipe 43.
  • the device temperature adjusting device 1 can maintain the circulation of the refrigerant in the fluid circulation circuit 10 even in the ascending state, so that the variation in the cooling performance of the battery pack BP by the plurality of evaporators 20 can be suppressed and the battery pack can be suppressed. It is possible to suppress the deterioration of the input/output characteristics of the BP.
  • the gas-phase refrigerant can be supplied to the second condenser 35 from the second gas-phase connection pipe 44.
  • the second condenser 35 is arranged at a position higher than the inlet 22 of the third evaporator 20C, which is the uppermost evaporator, in the downwardly inclined state.
  • the device temperature control apparatus 1 can supply the liquid-phase refrigerant condensed in the second condenser 35 to the third evaporator 20C, which is the uppermost evaporator, and through the liquid-phase connecting pipe 51. Therefore, it can be supplied to any of the plurality of evaporators 20. That is, the device temperature control apparatus 1 can suppress the variation in the cooling performance of the battery pack BP by the plurality of evaporators 20 and suppress the deterioration of the input/output characteristics of the battery pack BP even in the downward slope state.
  • the device temperature control apparatus 1 can maintain the circulation of the refrigerant in the fluid circulation circuit 10 in response to any of the normal state, the upward inclination state, and the downward inclination state. It is possible to suppress variations in the cooling performance of the battery pack BP by the evaporator 20.
  • the first condenser 30 and the second condenser 35 are both arranged on the front side of the vehicle C. Therefore, as compared with the case where one of the first condenser 30 and the second condenser 35 is arranged on the vehicle rear side of the plurality of evaporators 20, the arrangement space of the device temperature adjusting device 1 can be reduced. it can.
  • the device temperature control apparatus 1 can suppress an increase in the arrangement space for the configuration (for example, the outside air introduction unit) for supplying the heat medium.
  • the heat exchange section of the second condenser 35 is formed smaller than the heat exchange section of the first condenser 30, and the condensing capacity of the second condenser 35 is the first condenser 30. Is less than or equal to the condensing capacity of the first condenser 30, and is specifically lower than that of the first condenser 30.
  • the first condenser 30 and the second condenser 35 condense the refrigerant in the fluid circulation circuit 10. Therefore, depending on the condensing capacities of the first condenser 30 and the second condenser 35, in the normal state, the first condenser 30 mainly functions and the second condenser 35 assists the first condenser 30. Has a function.
  • the third evaporator 20C is arranged at the farthest position from the first condenser 30 to the vehicle rear side among the plurality of evaporators 20.
  • the pressure loss with respect to the refrigerant circulation of the first condenser and the third evaporator 20C is larger than that of the other evaporators 20. Therefore, the second condenser 35 plays a role of supplementing the pressure loss of the third evaporator 20C in the fluid circulation circuit 10 against the refrigerant circulation and supplying a sufficient liquid-phase refrigerant.
  • the first condenser 30 condenses the refrigerant in the fluid circulation circuit 10 in the ascending slope state
  • the second condenser 35 condenses the refrigerant in the fluid circulation circuit 10 in the descending slope state.
  • the energy balance of the battery pack BP in the downward slope state is smaller than the energy balance of the battery pack BP in the upward slope state, and the load on the battery pack BP is small. That is, the heat generation amount of the battery pack BP in the downward tilt state is smaller than the heat generation amount of the battery pack BP in the up tilt state.
  • the required condensing capacity of the second condenser 35 that functions in the downward slope state is lower than that of the first condenser 30 that functions in the upward slope state.
  • the condensing capacity of the second condenser 35 is set lower than the condensing capacity of the first condenser 30, the condensing capacity of the second condenser 35 remains in the normal state, the up-tilt state, and the down-tilt state. A sufficient condensing capacity can be secured.
  • the equipment temperature control device 1 according to the second embodiment is obtained by changing the configurations of the first condenser 30 and the second condenser 35 from the above-described first embodiment.
  • Other configurations are similar to those of the above-described first embodiment, and thus the description thereof will be omitted.
  • the device temperature control apparatus 1 has a first condenser 30 and a second condenser 35 on the front side of the vehicle C, as in the first embodiment.
  • the respective configurations of the first condenser 30 and the second condenser 35 are the same as in the first embodiment.
  • a condenser unit 60 is formed by the first condenser 30 and the second condenser 35.
  • the condenser unit 60 is configured by integrally mounting the first condenser 30 arranged on the front side of the vehicle and the second condenser 35 arranged on the rear side of the vehicle.
  • the position of the first condenser 30 and the position of the second condenser 35 arranged on the vehicle rear side thereof are relatively fixed by a fixture (not shown).
  • the condenser unit 60 only needs to be able to integrate the first condenser 30 and the second condenser 35.
  • the fins forming the heat exchange section of the first condenser 30 and the fins forming the heat exchange section of the second condenser 35 are made common, and the first condenser 30 and the second condenser 30 A composite heat exchanger having a function equivalent to that of the condenser 35 may be adopted.
  • the equipment temperature control device 1 by using the condenser unit 60 configured by the first condenser 30 and the second condenser 35, the arrangement of the equipment temperature control device 1 can be performed more reliably. It is possible to suppress an increase in space.
  • the device temperature control apparatus 1 according to the second embodiment even when the first condenser 30 and the second condenser 35 are integrated into the condenser unit 60, the device temperature control apparatus according to the first embodiment is different from the first embodiment.
  • the same effects as the common configuration and operation can be obtained as in the first embodiment.
  • the equipment temperature control device 1 uses the condenser unit 60 in which the first condenser 30 and the second condenser 35 are integrated, and thus suppresses an increase in the arrangement space of the equipment temperature control device 1. can do.
  • first condenser 30 and the second condenser 35 can also serve as a configuration (for example, an outside air introduction unit) for introducing a heat medium for condensing the working fluid, and an increase in the arrangement space related to this configuration can be suppressed. can do.
  • a flow rate adjusting valve 61 is added to the above-described first embodiment as a capacity adjusting unit that adjusts the condensation capacity of the second condenser 35. Since other configurations are the same as those in the above-described respective embodiments, description thereof will be omitted, and different points will be described in detail.
  • the second condenser 35 having the same condensing capacity as the first condenser 30 is adopted. Specifically, in the second condenser 35, a heat exchange section having the same size and shape as the heat exchange section of the first condenser 30 is used. A second vapor phase connection pipe 44 is connected to the second fluid inlet 36 of the second condenser 35.
  • the flow rate adjusting valve 61 is arranged on the second liquid phase connection pipe 54.
  • the flow rate adjusting valve 61 is configured to be able to adjust the opening degree in the second liquid phase connection pipe 54, and adjusts the flow rate of the refrigerant (that is, working fluid) flowing into the second condenser 35.
  • the second condenser 35 condenses the vapor-phase refrigerant by radiating the heat of the vapor-phase refrigerant, which is a working fluid, to the outside air OA as a heat medium, and thus adjusts the flow rate of the refrigerant flowing into the second condenser 35. By doing so, the condensing capacity of the second condenser 35 can be adjusted.
  • the device temperature adjustment device 1 reduces the opening degree of the flow rate adjustment valve 61 and reduces the flow rate of the refrigerant flowing into the second condenser 35, thereby reducing the condensing capacity of the second condenser 35 to the first condensation state. It can be adjusted to be lower than the condensing capacity of the vessel 30.
  • the condensing capacity of the second condenser 35 can be increased by increasing the opening degree of the flow rate adjusting valve 61. It can be adjusted according to the situation.
  • the device temperature adjusting device 1 As described above, according to the device temperature adjusting device 1 according to the third embodiment, even when the flow rate adjusting valve 61 is used as the capacity adjusting unit, the configuration and operation common to those of the first embodiment are realized. The same effects as the first embodiment can be obtained.
  • the device temperature control apparatus 1 according to the fourth embodiment is the one in which a shutter device 62 is added as a capacity adjusting unit that adjusts the condensation capacity of the second condenser 35 to the above-described first embodiment. Therefore, the other configurations are similar to those of the above-described embodiments, and thus the description thereof will be omitted.
  • a shutter device 62 is arranged between the first condenser 30 and the second condenser 35.
  • the second condenser 35 one having the same condensing capacity as the first condenser 30 is adopted, as in the second embodiment.
  • the shutter device 62 is configured by arranging a plurality of blades 63 rotatably in an opening of a frame-shaped frame.
  • the plurality of blades 63 rotate in conjunction with the operation of an electric actuator (not shown) to adjust the opening area at the opening of the frame.
  • the shutter device 62 can adjust the flow rate of the outside air OA passing through the heat exchange section of the second condenser 35, compared with the flow rate of the outside air OA passing through the heat exchange section of the first condenser 30. ..
  • the shutter device 62 adjusts the flow rate of the heat medium (that is, the outside air OA) that dissipates the heat of the vapor-phase refrigerant in the second condenser 35 by rotating the plurality of blades 63, and the second condenser 35.
  • the condensation capacity of 35 can be adjusted.
  • the device temperature control apparatus 1 reduces the flow rate of the outside air OA passing through the second condenser 35 by the shutter device 62 to reduce the condensation capacity of the second condenser 35 to the condensation of the first condenser 30. It can be adjusted lower than the ability.
  • the device temperature adjusting device 1 can adjust the condensing capacity of the second condenser 35 according to the situation of the device temperature adjusting device 1.
  • the device temperature adjusting apparatus 1 As described above, according to the device temperature adjusting apparatus 1 according to the fourth embodiment, even when the shutter device 62 is used as the capacity adjusting unit, the same configuration and operation as those of the first embodiment are achieved. The same operational effect can be obtained as in the first embodiment.
  • the fifth embodiment differs from the above-described first embodiment in that the arrangement of the battery pack BP with respect to the evaporator 20 is changed. Since other configurations are the same as those in the above-described respective embodiments, description thereof will be omitted, and different points will be described in detail.
  • the assembled battery BP is arranged such that the surface of each battery cell BC opposite to the surface provided with the terminal CT is in contact with the battery contact surface of the main body portion 21. ing. Each battery cell BC is in contact with the battery contact surface of the main body 21 via the heat conductive sheet.
  • the liquid-phase refrigerant evaporates inside the main body 21 of the evaporator 20 due to self-heating of the battery pack BP, so the battery pack BP must be cooled by the latent heat of vaporization.
  • the device temperature control apparatus 1 even when the arrangement of the battery pack BP with respect to the evaporator 20 is changed, the operational effects obtained from the configuration and operation common to each of the embodiments. Can exhibit the same effects as those of the above-described embodiments.
  • the fluid circulation circuit 10 of the device temperature control apparatus 1 has three evaporators 20 which are the first evaporator 20A to the third evaporator 20C, but is not limited to this mode. is not.
  • the number of evaporators 20 constituting the fluid circulation circuit of the device temperature controller 1 can be appropriately changed as long as it is two or more.
  • the device temperature control device 1 is configured by arranging a plurality of evaporators 20 in a line along the arrangement direction (that is, the vehicle front-rear direction), but is not limited to this mode. is not.
  • a set of evaporators configured by arranging a plurality of evaporators 20 in a line may be arranged in a direction intersecting the arrangement direction (for example, a vehicle left-right direction or a vehicle up-down direction).
  • the inlet 22 and the outlet 23 are arranged on the right side surface of the main body 21 of the evaporator 20, but the invention is not limited to this mode. ..
  • the inflow port 22 and the outflow port 23 of the evaporator 20 can be arranged on different side surfaces of the main body 21 as long as the vertical relationship in the gravity direction is satisfied.
  • the vertical relationship in the gravity direction is also shown. If they are satisfied, they can be arranged appropriately.
  • the battery pack BP is cited as the target device to be the target of temperature adjustment, but the target device is not limited to this.
  • the target device may be any device as long as it needs to be cooled or warmed up, and for example, a motor, an inverter, a charger or the like can be adopted.
  • the fluid circulation circuit 10 has a path in which the working fluid circulates via the first condenser 30 and a path in which the working fluid circulates via the second condenser 35.
  • the embodiment is not limited to this. That is, it may have a configuration including three or more condensers and a path circulating through the condensers.
  • the first condenser 30 and the second condenser 35 are configured to be arranged on the front side of the vehicle C, but the present invention is limited to this mode. It is not something that will be done. Specifically, the first condenser 30 and the second condenser 35 may be arranged on the rear side of the vehicle C.
  • the second condenser 35 is arranged on the vehicle rear side of the first condenser 30, and the condensing capacity of the first condenser 30 is set higher than the condensing capacity of the second condenser 35. Has been done. This is because the heat generation amount of the assembled battery BP in the ascending slope state is larger than the heat generation amount of the assembled battery BP in the descending slope state, and it is necessary to cool the assembled battery BP by the device temperature adjustment device 1.
  • the flow rate adjusting valve 61 adjusts the flow rate of the working fluid (refrigerant) flowing into the second condenser 35 to adjust the condensing capacity of the second condenser 35.
  • the embodiment is not limited to this.
  • an open/close valve can be used as an arrangement for adjusting the flow rate of the working fluid.
  • the flow rate of the working fluid can be substantially adjusted, and the condensing capacity of the second condenser 35 can be adjusted.
  • the outside air OA is used as the heat medium for radiating the heat of the refrigerant in the first condenser 30 and the second condenser 35, but the present invention is not limited to this mode.
  • Various modes can be adopted as the heat medium for radiating the heat of the working fluid in the first condenser 30 and the second condenser 35.
  • cooling water circulating in the cooling water circuit may be used as the heat medium.
  • the first condenser 30 and the second condenser 35 are water-refrigerant heat exchangers.
  • a water pump, an electric heater or the like arranged in the cooling water circuit can be adopted.
  • the water pump can adjust the flow rate of the cooling water flowing into the second condenser 35, the condensing capacity of the second condenser 35 can be adjusted. Further, since the electric heater can adjust the temperature of the cooling water in the cooling water circuit, the condensing capacity of the second condenser 35 can be adjusted.
  • a refrigerant that circulates in the refrigeration cycle may be used as the heat medium.
  • the refrigeration cycle may be arranged to condense the refrigerant as the working fluid, or may be arranged to be used also for other purposes (for example, vehicle interior air conditioning).
  • the first condenser 30 and the second condenser 35 are configured as a refrigerant-refrigerant heat exchanger.
  • the compressor and expansion valve in the refrigeration cycle can be used as the capacity adjusting unit in this case.
  • the flow rate and temperature of the refrigerant flowing into the second condenser 35 can be adjusted, and the condensing capacity of the second condenser 35 can be adjusted.

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Abstract

L'objectif de la présente invention est de fournir un dispositif de régulation de température d'équipement qui peut supporter une inclinaison par rapport à une direction d'agencement d'évaporateur, tout en limitant une augmentation de l'espace d'installation. Un dispositif de régulation de température d'équipement (1) comprend une pluralité d'évaporateurs (20), un premier condenseur (30) et un deuxième condenseur (35), une partie de passage d'écoulement de phase gazeuse (40), et une partie de passage d'écoulement de phase liquide (50). La partie de passage d'écoulement de phase gazeuse comprend un tuyau de liaison de phase gazeuse (41), un premier tuyau de raccordement de phase gazeuse (43) et un deuxième tuyau de raccordement de phase gazeuse (44). Le deuxième tuyau de raccordement de phase gazeuse (44) relie une partie d'extrémité du tuyau de liaison de phase gazeuse sur un autre côté dans une direction d'agencement à une entrée de fluide (36) du deuxième condenseur. La partie de passage d'écoulement de phase liquide comprend un tuyau de liaison de phase liquide (51), un premier tuyau de raccordement de phase liquide (53) et un deuxième tuyau de raccordement de phase liquide (54). Le deuxième tuyau de raccordement de phase liquide (54) relie une sortie de fluide (37) du deuxième condenseur à une partie d'extrémité du tuyau de liaison de phase liquide sur l'autre côté dans la direction d'agencement. Le deuxième condenseur est disposé à une position plus élevée qu'un orifice d'entrée de l'évaporateur d'ordre supérieur lorsque le premier condenseur et le deuxième condenseur ont été inclinés de manière à se déplacer vers le bas dans la direction de la gravité.
PCT/JP2019/047390 2018-12-17 2019-12-04 Dispositif de régulation de température d'équipement WO2020129645A1 (fr)

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JP2018235308A JP2020098041A (ja) 2018-12-17 2018-12-17 機器温調装置
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KR102429721B1 (ko) * 2021-10-27 2022-08-08 (주) 선엔지니어링종합건축사사무소 비상 탈출 및 소화를 위한 계단 장치

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62157608U (fr) * 1986-03-31 1987-10-06
US20120003516A1 (en) * 2010-06-30 2012-01-05 Nissan Technical Center North America, Inc. Vehicle battery temperature control system and method
JP2012255624A (ja) * 2011-06-10 2012-12-27 Panasonic Corp 電気自動車
US20150241094A1 (en) * 2012-09-03 2015-08-27 Abb Technology Ag Power electronics cooling
WO2018066206A1 (fr) * 2016-10-06 2018-04-12 株式会社デンソー Dispositif de commande de température de machine
WO2018168276A1 (fr) * 2017-03-16 2018-09-20 株式会社デンソー Appareil de réglage de température de dispositif
WO2018186179A1 (fr) * 2017-04-03 2018-10-11 株式会社デンソー Dispositif de refroidissement d'instrument monté sur véhicule

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62157608U (fr) * 1986-03-31 1987-10-06
US20120003516A1 (en) * 2010-06-30 2012-01-05 Nissan Technical Center North America, Inc. Vehicle battery temperature control system and method
JP2012255624A (ja) * 2011-06-10 2012-12-27 Panasonic Corp 電気自動車
US20150241094A1 (en) * 2012-09-03 2015-08-27 Abb Technology Ag Power electronics cooling
WO2018066206A1 (fr) * 2016-10-06 2018-04-12 株式会社デンソー Dispositif de commande de température de machine
WO2018168276A1 (fr) * 2017-03-16 2018-09-20 株式会社デンソー Appareil de réglage de température de dispositif
WO2018186179A1 (fr) * 2017-04-03 2018-10-11 株式会社デンソー Dispositif de refroidissement d'instrument monté sur véhicule

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