WO2020158865A1 - Système de gestion de chaleur - Google Patents

Système de gestion de chaleur Download PDF

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Publication number
WO2020158865A1
WO2020158865A1 PCT/JP2020/003442 JP2020003442W WO2020158865A1 WO 2020158865 A1 WO2020158865 A1 WO 2020158865A1 JP 2020003442 W JP2020003442 W JP 2020003442W WO 2020158865 A1 WO2020158865 A1 WO 2020158865A1
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Prior art keywords
formula
heat
transport medium
heat transport
oxygen
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PCT/JP2020/003442
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English (en)
Japanese (ja)
Inventor
沙織 中島
卓哉 布施
康志 浅野
康生 石原
俊二 梶川
宮地　治彦
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株式会社デンソー
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Publication of WO2020158865A1 publication Critical patent/WO2020158865A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/40—Electric propulsion with power supplied within the vehicle using propulsion power supplied by capacitors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/70—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by fuel cells
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L55/00—Arrangements for supplying energy stored within a vehicle to a power network, i.e. vehicle-to-grid [V2G] arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
    • 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
    • H01M10/653—Means for temperature control structurally associated with the cells characterised by electrically insulating or thermally conductive materials
    • 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
    • H01M8/00—Fuel cells; Manufacture thereof
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/02—Details
    • H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
    • H01M8/0267—Collectors; Separators, e.g. bipolar separators; Interconnectors having heating or cooling means, e.g. heaters or coolant flow channels
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
    • H01M8/04029—Heat exchange using liquids
    • 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
    • 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
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/72—Electric energy management in electromobility
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/14—Plug-in electric vehicles
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/40—Application of hydrogen technology to transportation, e.g. using fuel cells

Definitions

  • This disclosure relates to thermal management systems.
  • Patent Document 1 describes a coolant for a fuel cell drive device.
  • the cooling liquid contains water and orthosilicate ester.
  • Orthosilicic acid esters are used in place of ionic corrosion inhibitors (i.e. ionic rust inhibitors).
  • the present inventor examined the use of a heat transport medium containing an orthosilicate ester in a heat management system that manages the heat of a heating element that generates heat due to charge/discharge or power conversion.
  • the system includes a liquid heat transport medium that transports heat received from a heating element and a circuit through which the heat transport medium flows.
  • This circuit includes a heat exchanger that radiates heat from the heat transport medium by exchanging heat with the heat exchange medium.
  • the heat transport medium includes a liquid base material and an orthosilicate ester. Examples of the liquid base material include water and organic solvents.
  • the content of the ionic rust inhibitor can be reduced as compared with the conventional heat transport medium containing the ionic rust inhibitor.
  • the heat transport medium may be free of ionic rust inhibitor. Therefore, the conductivity of the heat transport medium can be lowered as compared with the conventional heat transport medium containing an ionic anticorrosive agent.
  • a compound containing Si whose precursor is orthosilicate ester is bonded to the surface of the flow path forming part.
  • the flow passage forming portion is a portion that forms a flow passage through which the heat transport medium flows.
  • Examples of the flow path forming unit include a portion of the heat exchanger through which the heat transport medium flows.
  • the thermal management system that manages the heat of the heating element that generates heat with discharge or power conversion, A liquid heat transport medium that transports the heat received from the heating element, A circuit through which the heat transport medium flows, The circuit has a heat exchanger that releases heat of the heat transport medium to the heat exchange medium by heat exchange between the heat transport medium and the heat exchange medium,
  • the heat transport medium includes a liquid base material and a Si compound represented by the following formula (I), formula (II) or formula (III).
  • R 1 to R 3 in the formula (I) are the same or different from each other and represent a group containing no oxygen which is directly bonded to Si in the formula.
  • Z in the formula (I) represents an oxygen-containing group directly bonded to Si in the formula.
  • R 1 and R 2 in the formula (II) are the same or different from each other and represent a group containing no oxygen which is directly bonded to Si in the formula.
  • Z 1 and Z 2 in the formula (II) are the same or different from each other and represent a group containing oxygen directly bonded to Si in the formula.
  • R in the formula (III) represents a water-insoluble group containing no oxygen which is directly bonded to Si in the formula.
  • Z 1 , Z 2 , and Z 3 in formula (III) are the same or different from each other and represent a group containing oxygen that is directly bonded to Si in the formula.
  • the content of the ionic rust inhibitor can be reduced as compared with the conventional heat transport medium containing the ionic rust inhibitor.
  • the heat transport medium may be free of ionic rust inhibitor. Therefore, the conductivity of the heat transport medium can be lowered as compared with the conventional heat transport medium containing an ionic anticorrosive agent.
  • a compound that is a precursor of another orthosilicate ester in the heat transport medium is newly bonded to the compound that is bonded to the surface of the flow path forming part. Therefore, a portion not covered with the compound having orthosilicate as a precursor is generated on the surface of the flow channel forming portion.
  • the heat transport medium includes a liquid base material and a Si compound represented by the formula (I), the formula (II), or the formula (III). ..
  • the molecule of this Si compound three or less oxygen elements are directly bonded to Si atoms. Therefore, the molecule of this Si compound is also decomposed at the oxygen atom portion, and the decomposed Si-containing portion is bonded to the surface of the flow path forming portion. That is, the compound having the Si compound as a precursor in the heat transport medium is bonded to the surface of the flow path forming portion.
  • the molecule of this Si compound has a smaller number of oxygen atoms directly bonded to the Si atom than the orthosilicate ester, and has a small portion where chemical reactions of decomposition and bonding occur. Therefore, as compared with the orthosilicate ester, the compound having the Si compound as a precursor in the heat transport medium does not bind to the compound bonded to the surface of the flow path forming portion, and the compound on the surface of the flow path forming portion does not bond. More binding can be done. In other words, when the number of molecules existing in the heat transport medium is the same and compared, the number of compounds bonded to the surface of the flow path forming portion can be made larger than that of the orthosilicate ester.
  • the Si compound in the heat transport medium is used as a precursor. It is possible to reduce the portion not covered with the compound. Therefore, deterioration of the flow path forming portion can be suppressed more than in this case.
  • the thermal management system 10 shown in FIG. 1 is mounted on an electric vehicle.
  • the thermal management system 10 will simply be referred to as the system 10.
  • An electric vehicle obtains a driving force for traveling the vehicle from an electric motor for traveling.
  • Examples of electric vehicles include electric vehicles, plug-in hybrid vehicles, fuel cell vehicles, and electric two-wheel vehicles.
  • the number of wheels of the electric vehicle and the vehicle application are not limited.
  • the electric vehicle is equipped with a traveling electric motor, a battery, and an inverter.
  • a fuel cell is mounted on the vehicle.
  • An electric motor for traveling is a motor generator that converts the electric power supplied from the battery into driving force for traveling the vehicle, and also converts the power of the vehicle into electric power during deceleration.
  • the traveling electric motor generates heat as power and electric power are converted.
  • the battery is a battery for running the vehicle that supplies electric power to the electric motor for running.
  • the battery charges electric power from the electric motor for traveling when the vehicle decelerates.
  • the battery can be charged with electric power supplied from an external power source (that is, a commercial power source) when the vehicle is stopped.
  • the battery generates heat as it is charged and discharged.
  • the inverter is a power conversion device that converts the electric power supplied from the battery to the electric motor for running to direct current to alternating current. Further, the inverter converts the electric power charged from the traveling electric motor into the battery from AC to DC. The inverter generates heat as power is converted.
  • the fuel cell converts the chemical energy of the fuel into electric power by an electrochemical reaction. Fuel cells generate heat as fuel is converted to electric power.
  • the system 10 manages the heat of the heating element 12.
  • the system 10 includes a heating element 12, a heat transport medium 14, and a circuit 20.
  • the heating element 12 generates heat with charge/discharge or power conversion.
  • the heating element 12 is the above-mentioned battery, fuel cell, inverter or motor generator.
  • the heat transport medium 14 is liquid and transports heat received from the heating element 12. Details of the heat transport medium 14 will be described later.
  • the heat transport medium 14 flows through the circuit 20.
  • the circuit 20 includes a heat receiving unit 21, a heat exchanger 22, a pump 24, and a hose 25.
  • the heat receiving part 21 causes the heat transport medium 14 to receive heat from the heating element 12.
  • the heat receiving portion 21 is configured by a flow path that flows adjacent to the heating element 12. Heat is transferred from the heat generating body 12 to the heat transport medium 14 via the members constituting the heat receiving portion 21.
  • the heat exchanger 22 releases the heat of the heat transport medium 14 to the heat exchange medium by heat exchange between the heat transport medium 14 and the heat exchange medium.
  • the heat exchange medium is air, oil or a refrigeration cycle refrigerant.
  • the portion of the heat exchanger 22 that comes into contact with the heat transport medium 14 is made of a member containing aluminum.
  • the hose 25 is a flow passage forming portion that connects the heat receiving portion 21 and the heat exchanger 22, which are circuit components that form the circuit 20, to each other and forms a flow passage through which the heat transport medium 14 flows.
  • the hose 25 includes a portion made of synthetic rubber. Instead of the hose 25, a pipe made of metal or synthetic resin may be used.
  • the heat transport medium 14 circulates in the circuit 20 by the operation of the pump 24.
  • the heat transport medium 14 receives the heat of the heating element.
  • the heat exchanger 22 the heat of the heat transport medium 14 is released to the outside of the circuit 20. As a result, the heating element 12 is cooled.
  • the heat transport medium 14 contains a liquid base material and a Si compound, and does not contain an ionic rust inhibitor.
  • the heat transport medium 14 of the present embodiment does not include orthosilicate ester.
  • the base material is a material that is a base of the heat transport medium 14.
  • the liquid substrate means that it is in a liquid state in use.
  • Water to which a freezing point depressant is added is used as the base material. Water is used because it has a large heat capacity, is inexpensive, and has low viscosity.
  • the freezing point depressant is added to water in order to ensure the liquid state even when the environmental temperature is below freezing. The freezing point depressant dissolves in water and lowers the freezing point of water.
  • an organic alcohol such as alkylene glycol or its derivative is used.
  • alkylene glycol for example, monoethylene glycol, monopropylene glycol, polyglycol, glycol ether, and glycerin are used alone or as a mixture.
  • the freezing point depressant is not limited to organic alcohols, and inorganic salts and the like may be used.
  • the Si compound is represented by formula (I), formula (II) or formula (III).
  • R 1 to R 3 in the formula (I) are the same or different from each other and represent a group containing no oxygen which is directly bonded to Si in the formula.
  • Z in the formula (I) represents an oxygen-containing group directly bonded to Si in the formula.
  • the oxygen-free group in the formula, which is directly bonded to Si may be either water-soluble or water-insoluble.
  • the non-oxygen-containing group directly bonded to Si in the formula is a non-oxygen-containing group or an oxygen-containing group not directly bonded to Si in the formula.
  • the non-oxygen-containing group includes, for example, an unsubstituted or partially substituted hydrocarbon group.
  • the hydrocarbon group may be saturated or unsaturated, cyclic, side chain, straight chain, or a combination thereof.
  • Examples of the hydrocarbon group include an alkyl group having 1 to 20 carbon atoms, an alkenyl group having 2 to 20 carbon atoms, and an aryl group having 6 to 12 carbon atoms.
  • Examples of the hydrocarbon group partially substituted include those in which a part of hydrogen atoms of the hydrocarbon group is substituted with halogen or pseudohalogen.
  • Examples of the halogen include chlorine, fluorine, bromine, iodine and the like.
  • Pseudohalogen is an atomic group having properties similar to those of a halogen atom.
  • Examples of the pseudohalogen include thiocyanate and CN.
  • Examples of the hydrocarbon group partially substituted include CF 3 (CF 2 ) m (CH 2 ) n . m and n represent integers.
  • oxygen-containing group not directly bonded to Si in the formula examples include an aldehyde group, a carbonyl group, a carboxyl group, a nitro group, a sulfo group, a group containing an ester bond, a group containing an ether bond, and the like.
  • Z is a group represented by OR 4 .
  • R 4 is hydrogen, a hydrocarbon group or the like.
  • the hydrocarbon group includes not only an unsubstituted hydrocarbon group but also a partially substituted hydrocarbon group. Examples of the hydrocarbon group include an alkyl group having 1 to 20 carbon atoms, an alkenyl group having 2 to 20 carbon atoms, and an aryl group having 6 to 12 carbon atoms.
  • R 4 may be a group containing oxygen.
  • R 1 and R 2 in the formula (II) are the same or different from each other and represent a group containing no oxygen which is directly bonded to Si in the formula.
  • Z 1 and Z 2 in the formula (II) are the same or different from each other and represent a group containing oxygen which is directly bonded to Si in the formula.
  • the description of the oxygen-free group directly bonded to Si in the formula is the same as that of the formula (I).
  • Z 1 is a group represented by OR 4 .
  • Z 2 is a group represented by OR 5 .
  • R 4 and R 5 may be the same or different.
  • R 4 and R 5 are hydrogen or a hydrocarbon group or the like.
  • the hydrocarbon group includes not only an unsubstituted hydrocarbon group but also a partially substituted hydrocarbon group. Examples of the hydrocarbon group include an alkyl group having 1 to 20 carbon atoms, an alkenyl group having 2 to 20 carbon atoms, and an aryl group having 6 to 12 carbon atoms.
  • R 4 and R 5 may be a group containing oxygen.
  • R in the formula (III) represents a water-insoluble group containing no oxygen which is directly bonded to Si in the formula.
  • Z 1 , Z 2 , and Z 3 in formula (III) are the same or different from each other and represent a group containing oxygen that is directly bonded to Si in the formula.
  • a water-insoluble group is a group that has no polarity and does not hydrate with water molecules.
  • the non-oxygen-containing group directly bonded to Si in the formula is a non-oxygen-containing group or an oxygen-containing group not directly bonded to Si in the formula.
  • the description of the group containing oxygen which is not directly bonded to Si in the formula is the same as that of the formula (I).
  • Examples of the water-insoluble group containing no oxygen and directly bonded to Si in the formula include an alkyl group (eg, methyl group, ethyl group, etc.), unsaturated hydrocarbon group (eg, vinyl group, allyl group, methylene group). Groups) and cyclic hydrocarbon groups (eg, cyclohexyl groups, phenyl groups, etc.). These groups include not only those which are unsubstituted but also those which are partially substituted.
  • Examples of partially substituted hydrogen include those in which some hydrogen is substituted with halogen or pseudohalogen.
  • Examples of the halogen include chlorine, fluorine, bromine, iodine and the like.
  • Pseudohalogen is an atomic group having properties similar to those of a halogen atom.
  • Examples of the pseudohalogen include thiocyanate and CN.
  • As those partially substituted for example, CF 3 (CF 2) m (CH 2) n and the like. m and n represent integers.
  • Z 1 is a group represented by OR 4 .
  • Z 2 is a group represented by OR 5 .
  • Z 3 is a group represented by OR 6 .
  • R 4 , R 5 and R 6 may be the same or different.
  • R 4 , R 5 , and R 6 are hydrogen, a hydrocarbon group, or the like.
  • the hydrocarbon group includes not only an unsubstituted hydrocarbon group but also a partially substituted hydrocarbon group. Examples of the hydrocarbon group include an alkyl group having 1 to 20 carbon atoms, an alkenyl group having 2 to 20 carbon atoms, and an aryl group having 6 to 12 carbon atoms.
  • R 4 , R 5 and R 6 may be a group containing oxygen.
  • the Si compound represented by the formula (I), the formula (II) or the formula (III) is produced, for example, via an orthosilicate ester.
  • the Si compound represented by the formula (I), the formula (II) and the formula (III) is a compound for giving the heat transport medium 14 a function of rust prevention.
  • the heat transport medium 14 has a rust preventive function. Therefore, the heat transport medium 14 does not have to include the ionic rust preventive agent.
  • the heat transport medium 14 does not contain an ionic rust inhibitor. Therefore, the conductivity of the heat transport medium 14 can be reduced as compared with the case where the heat transport medium 14 contains an ionic anticorrosive agent. Specifically, the conductivity of the heat transport medium 14 can be 50 ⁇ S/cm or less, preferably 1 ⁇ S/cm or more and 5 ⁇ S/cm or less.
  • the heat transport medium 14 may contain an azole derivative as a rust preventive.
  • the compound 32 containing Si as a precursor is bonded to the surface of the flow path forming portion 30.
  • the flow path forming unit 30 is a part that forms a flow path through which the heat transport medium flows.
  • Examples of the flow path forming unit 30 include a part of the heat exchanger 22 that forms a flow path of the heat transport medium, a part of the pump 24 that forms a flow path of the heat transport medium, the hose 25, and the like.
  • the orthosilicate ester is decomposed into a Si-containing portion and other portions. Dehydration condensation occurs between the hydroxyl group contained in the decomposed Si-containing portion and the hydroxyl group present on the surface of the flow path forming portion 30. As a result, the decomposed Si-containing portion is bonded to the surface of the flow path forming portion 30.
  • the portion containing Si after decomposition is the compound 32 using orthosilicate ester as a precursor.
  • the compound 32 having another orthosilicic acid ester in the heat transport medium as a precursor is newly bonded to the compound 32 bonded to the surface of the flow path forming portion 30. Therefore, a portion of the surface of the flow path forming portion 30 that is not covered with the compound 32 having the orthosilicate ester as a precursor is generated. The portion not covered with the compound 32 is deteriorated by touching the heat transport medium.
  • the base material of the heat transport medium 14 contains water.
  • the portion of the heat exchanger 22 that comes into contact with the heat transport medium 14 is made of a member containing aluminum.
  • hydrogen gas is generated in the portion of the heat exchanger 22 that comes into contact with the heat transport medium 14 by the electrochemical reaction of water.
  • the heat exchanger 22 deteriorates.
  • the heat transport medium 14 includes a liquid base material and the Si compound represented by the formula (I), the formula (II) or the formula (III).
  • the Si compound represented by the formula (I), the formula (II) or the formula (III) In the molecule of this Si compound, three or less oxygen elements are directly bonded to Si atoms. Therefore, the molecule of this Si compound is also decomposed at the oxygen atom portion, and the decomposed Si-containing portion 34 is bonded to the surface of the flow path forming portion 30, as shown in FIG.
  • the portion 34 containing Si after decomposition is the compound 34 having the Si compound in the heat transport medium as a precursor.
  • the molecule of this Si compound has a smaller number of oxygen atoms directly bonded to the Si atom than the orthosilicate ester, and has a small portion where chemical reactions of decomposition and bonding occur. Therefore, as compared with orthosilicic acid ester, the compound 34 having the Si compound as a precursor in the heat transport medium does not bond to the compound 34 bonded to the surface of the flow channel forming part 30, and Bonding to the surface of 30 can be increased. In other words, when the number of molecules existing in the heat transport medium is the same and compared, the number of compounds 34 directly bonded to the surface of the flow channel forming portion 30 can be increased more than that of the orthosilicate ester.
  • the heat transport medium containing the orthosilicic acid ester without containing the Si compound represented by the formula (I), the formula (II) or the formula (III)
  • the heat transport of the surface of the flow path forming unit 30 It is possible to reduce the portion of the medium not covered with the compound 34 having the Si compound as the precursor. Therefore, deterioration of the flow path forming unit 30 can be suppressed more than in this case.
  • the Si compound when the Si compound is the compound represented by the formula (I), at least two of R 1 to R 3 in the formula (I) have different molecular weights from each other, and It is preferably a group containing no.
  • R 1 to R 3 is a phenyl group
  • another one is a methyl group
  • yet another one is an ethyl group.
  • R 1 and R 2 in the formula (II) are preferably groups having different molecular weights and containing no oxygen.
  • one of R 1 and R 2 is a phenyl group and the other is a methyl group.
  • the covered area is the area where the compound 34 covers the surface of the flow path forming portion 30. Therefore, it is possible to further prevent the heat transport medium from coming into contact with the surface of the flow path forming unit 30.
  • the Si compound when the Si compound is the compound represented by the formula (I), at least one of R 1 to R 3 in the formula (I) does not contain oxygen and is halogen. Alternatively, it is preferably a group containing pseudo halogen.
  • the Si compound is a compound represented by the formula (II)
  • at least one of R 1 and R 2 in the formula (II) is preferably a group containing no oxygen and containing halogen or pseudohalogen. ..
  • R in the formula (III) when the Si compound is the compound represented by the formula (III), is preferably a group containing no oxygen and containing halogen or pseudohalogen.
  • the Si compound represented by the formula (I), the formula (II) or the formula (III) is used as a precursor, and the compound 34 bonded to the surface of the flow path forming portion 30 is made to have a chemical repulsion property. be able to. Therefore, it is possible to further prevent the heat transport medium from coming into contact with the surface of the flow path forming unit 30, as compared with the case where no halogen or pseudo halogen is contained.
  • the heat transport medium 14 does not contain an ionic rust preventive agent.
  • the heat transport medium 14 may contain an ionic rust preventive agent. That is, the heat transport medium 14 containing the orthosilicate ester can reduce the content of the ionic rust inhibitor as compared with the conventional heat transport medium containing the ionic rust inhibitor. Therefore, the conductivity of the heat transport medium can be lowered as compared with the conventional heat transport medium containing an ionic anticorrosive agent.
  • the heat transport medium 14 further contains an orthosilicate ester.
  • the orthosilicate ester is a compound in which four oxygen atoms are directly bonded to Si.
  • Examples of the orthosilicate ester include tetraalkoxysilane such as tetraethoxysilane.
  • the other configuration of the system 10 is the same as that of the first embodiment. Even if the heat transport medium 14 contains an orthosilicate, the effect of the first embodiment can be obtained. Furthermore, the following effects can be obtained.
  • the Si compound represented by the formula (I), the formula (II) or the formula (III) is produced, for example, via an orthosilicate ester.
  • the production cost of the Si compound represented by formula (I), formula (II) or formula (III) is higher than that of the orthosilicate ester. Therefore, compared with the case where the heat transport medium 14 contains only the Si compound of the Si compound and the orthosilicate, the content of the Si compound is reduced, and the amount of the orthosilicate ester corresponding to the reduced amount is added. .. Thereby, the manufacturing cost of the heat transport medium 14 can be reduced as compared with the case where the heat transport medium 14 contains only the Si compound.
  • the mass ratio of the orthosilicate ester to the heat transport medium 14 is preferably higher than the mass ratio of the Si compound to the heat transport medium 14. According to this, the manufacturing cost of the heat transport medium 14 can be reduced as compared with the case where the mass ratio of the orthosilicate ester is lower than the mass ratio of the Si compound.
  • the ratio of the mass of the Si compound to the total mass of the Si compound and the orthosilicate in the heat transport medium 14 is preferably less than 50%, more preferably 10% or less.
  • the ratio of the Si compound is 0.1% or more, the effect of the Si compound represented by the formula (I), the formula (II) or the formula (III) can be obtained.
  • FIG. 4 shows the analysis result of the uniformity of the coating film and the evaluation result of the corrosivity performed by the present inventor for each of the heat transport medium 14 of the second embodiment and the heat transport medium of the comparative example.
  • the inventor of the present invention immersed a test sample for film analysis and a test sample for corrosiveness evaluation for one week in each of the heat transport medium 14 of the second embodiment and the heat transport medium of the comparative example.
  • the base material of each of the heat transport medium 14 of the second embodiment and the heat transport medium of the comparative example is water containing a freezing point depressant.
  • the heat transport medium 14 of the second embodiment contains a Si compound and TEOS (that is, tetraethoxysilane).
  • This Si compound is a compound represented by the formula (III).
  • R in the formula (III) is a group containing no oxygen but containing halogen.
  • TEOS is an abbreviation for Tetraethyl orthosilicate.
  • the heat transport medium of the comparative example contains only TEOS out of the Si compound and TEOS.
  • the test body is an aluminum plate.
  • the diagram showing the distribution of Si—O in FIG. 4 is a diagram in which the O component in the film is mapped by EPMA.
  • the SO distribution in FIG. 4 is for comparing the amounts of O components in the test body.
  • the comparative example and the second embodiment have the same pattern portion. However, the portions having the same pattern do not indicate that the absolute values of the O components are the same.
  • the distribution of Si—O in the coating film was non-uniform because the portion with a small amount of O component was present in an island shape. Therefore, the thickness of the coating is not uniform.
  • the Si—O distribution in the coating was uniform. Therefore, the thickness of the coating is uniform.
  • the present inventor confirmed the presence or absence of corrosion of the test body for corrosiveness evaluation. Specifically, the inventor passed an electric current through each test body and measured the current density of each test body. Then, the present inventor evaluated that there was no corrosion when the current density was less than 0.65 ⁇ A/cm 2 , and there was corrosion when the current density exceeded 0.65 ⁇ A/cm 2 . The circles in FIG. 4 indicate that there was no corrosion. X in FIG. 4 indicates that there was corrosion. As shown in FIG. 4, in the heat transport medium of the comparative example, the test body was corroded. On the other hand, in the heat transport medium of the second embodiment, the test body was not corroded.
  • the heating element 12 and the circuit 20 are mounted on the vehicle, but they may not be mounted on the vehicle. That is, the heating element 12 does not have to be mounted on the vehicle as long as it generates heat along with discharge and power conversion.
  • Examples of such a heating element 12 include an electric device such as an inverter included in a stationary charging station that charges a battery of an electric vehicle.
  • the heat management system includes a liquid heat transport medium that transports heat received from the heating element and a circuit through which the heat transport medium flows.
  • Prepare The circuit has a heat exchanger that releases heat of the heat transport medium to the heat exchange medium by heat exchange between the heat transport medium and the heat exchange medium.
  • the heat transport medium includes a liquid base material and a Si compound represented by formula (I), formula (II) or formula (III).
  • the Si compound is a compound represented by the formula (I) or the formula (II). At least two of R 1 to R 3 in the formula (I) are groups having different molecular weights and containing no oxygen. R 1 and R 2 in the formula (II) are groups having different molecular weights and containing no oxygen.
  • the coating per molecule of the compound bonded to the surface of the flow path forming portion is made.
  • the coating area is the area where this compound covers the surface of the flow path forming portion. Therefore, it is possible to further prevent the heat transport medium from coming into contact with the surface of the flow path forming portion. Therefore, the deterioration of the flow path forming portion can be further suppressed.
  • At least one of R 1 to R 3 in the formula (I) is a group containing no oxygen and containing halogen or pseudohalogen.
  • At least one of R 1 and R 2 in the formula (II) is a group containing no halogen and containing halogen or pseudohalogen.
  • R in the formula (III) is a group containing no oxygen and containing halogen or pseudohalogen.
  • the heat transport medium further contains an orthosilicate ester. Even when the heat transport medium contains an orthosilicate ester, the effect of the first aspect can be obtained. Furthermore, the following effects can be obtained.
  • the Si compound represented by the formula (I), the formula (II) or the formula (III) is produced via an orthosilicate ester.
  • the Si compound has a higher production cost than the orthosilicate ester. Therefore, compared with the case where the heat transport medium contains only the Si compound among the Si compound and the orthosilicate, the content of the Si compound is reduced, and the amount of the orthosilicate ester corresponding to the reduced amount is added. This makes it possible to reduce the manufacturing cost of the heat transport medium as compared with the case where the heat transport medium contains only the Si compound.
  • the mass ratio of the orthosilicate ester to the heat transport medium is higher than the mass ratio of the Si compound to the heat transport medium. According to this, compared with the case where the mass ratio of the orthosilicate is lower than the mass ratio of the Si compound, the manufacturing cost of the heat transport medium can be reduced.
  • the base material contains water.
  • a portion of the heat exchanger that comes into contact with the heat transport medium is made of a member containing aluminum.
  • the thermal management systems of the first to fifth aspects are particularly effective in the case of the configuration of the sixth aspect.
  • the heat exchange medium is air, oil, or a refrigeration cycle refrigerant.
  • air, oil, or a refrigeration cycle refrigerant can be used as the heat exchange medium.
  • the heat management system is mounted on the vehicle.
  • the heating element is a battery for driving the vehicle, a fuel cell mounted on the vehicle, an inverter mounted on the vehicle, or a motor generator mounted on the vehicle.
  • the thermal management systems of the first to seventh aspects are particularly effective in the case of the configuration of the eighth aspect.

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  • Fuel Cell (AREA)
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Abstract

L'invention concerne un système de gestion de la chaleur permettant de gérer la chaleur émanant d'un corps de production de chaleur (12) produisant de la chaleur conjointement avec une charge et une décharge ou avec une conversion d'énergie, le système comprenant un agent caloporteur liquide (14) destiné à transporter la chaleur reçue à partir du corps de production de chaleur et un circuit (20) apte à être traversé par l'écoulement d'agent caloporteur. Le circuit comprend un échangeur de chaleur (22) destiné à dissiper la chaleur d'un agent caloporteur vers un milieu d'échange de chaleur, au moyen de l'échange de chaleur entre l'agent caloporteur et le milieu d'échange de chaleur. L'agent caloporteur comprend un matériau de base liquide et le composé de Si représenté par la formule (I), etc. R1-R3 dans la formule (I) sont identiques ou différents, et représentent un groupe ne contenant pas d'oxygène lié directement au Si dans la formule. Z dans la formule (I) représente un groupe contenant un oxygène lié directement au Si dans la formule.
PCT/JP2020/003442 2019-02-01 2020-01-30 Système de gestion de chaleur WO2020158865A1 (fr)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5981376A (ja) * 1982-09-30 1984-05-11 ファ−スト、ブランズ、コ−ポレ−ション オルトケイ酸エステル含有熱伝達流体
JPH07230818A (ja) * 1994-02-18 1995-08-29 Toyota Motor Corp 燃料電池の製造方法
JP3732181B2 (ja) * 2000-12-20 2006-01-05 ビーエーエスエフ アクチェンゲゼルシャフト 燃料電池駆動装置中での冷却用の冷媒

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01172485A (ja) * 1987-12-22 1989-07-07 Korea Advanced Inst Of Sci Technol 自動車放熱器用不凍液組成物
US8771542B2 (en) * 2008-07-11 2014-07-08 Prestone Products Corporation Heat transfer fluid, additive package, system and method
US8591762B2 (en) * 2011-10-21 2013-11-26 Chevron U.S.A. Inc. Coolant formulations

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5981376A (ja) * 1982-09-30 1984-05-11 ファ−スト、ブランズ、コ−ポレ−ション オルトケイ酸エステル含有熱伝達流体
JPH07230818A (ja) * 1994-02-18 1995-08-29 Toyota Motor Corp 燃料電池の製造方法
JP3732181B2 (ja) * 2000-12-20 2006-01-05 ビーエーエスエフ アクチェンゲゼルシャフト 燃料電池駆動装置中での冷却用の冷媒

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