WO2022054865A1 - Dispositif de refroidissement de batterie de véhicule et procédé de refroidissement de batterie de véhicule - Google Patents

Dispositif de refroidissement de batterie de véhicule et procédé de refroidissement de batterie de véhicule Download PDF

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Publication number
WO2022054865A1
WO2022054865A1 PCT/JP2021/033126 JP2021033126W WO2022054865A1 WO 2022054865 A1 WO2022054865 A1 WO 2022054865A1 JP 2021033126 W JP2021033126 W JP 2021033126W WO 2022054865 A1 WO2022054865 A1 WO 2022054865A1
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WO
WIPO (PCT)
Prior art keywords
refrigerant
temperature
battery
compressor
cooling device
Prior art date
Application number
PCT/JP2021/033126
Other languages
English (en)
Japanese (ja)
Inventor
豊 野口
英夫 町田
Original Assignee
株式会社ヴァレオジャパン
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社ヴァレオジャパン filed Critical 株式会社ヴァレオジャパン
Publication of WO2022054865A1 publication Critical patent/WO2022054865A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K11/00—Arrangement in connection with cooling of propulsion units
    • B60K11/02—Arrangement in connection with cooling of propulsion units with liquid cooling
    • B60K11/04—Arrangement or mounting of radiators, radiator shutters, or radiator blinds
    • 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
    • H01M10/63—Control systems
    • H01M10/633—Control systems characterised by algorithms, flow charts, software details or the like
    • 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
    • H01M10/6569—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
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • 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 invention relates to a vehicle battery cooling technique.
  • a vehicle that uses a motor as a power source is equipped with a battery for energizing the motor. It is desirable to cool the battery because it gets hot during operation.
  • a technology for cooling a vehicle battery there is a technology disclosed in Patent Document 1.
  • the battery cooling system disclosed in Patent Document 1 includes a vehicle air conditioner and a battery cooling device, and is provided with a shutter on the upstream side of the condenser with reference to the flow direction of air passing through the condenser, and the pressure of the refrigerant is provided.
  • the opening and closing of the shutter is switched by.
  • the ventilation resistance of the radiator located on the downstream side of the shutter is made as small as possible to improve the fuel efficiency of the vehicle.
  • the compressor and the condenser are generally arranged at the front part of the vehicle, and the battery cooling device is arranged at the rear part of the vehicle. Therefore, the refrigerant flow path connecting these becomes long. Since the refrigerant flow path is long, the energy lost due to the passage resistance also increases, and there is a possibility that the battery cannot be sufficiently cooled. On the other hand, when the refrigerant is excessively flowed in consideration of the passage resistance, the battery is cooled more than necessary in the low temperature region, which causes a problem in terms of energy efficiency.
  • An object of the present invention is to provide a cooling technique capable of efficiently cooling a battery.
  • a compressor (12) that compresses a refrigerant and discharges a high-temperature and high-pressure refrigerant
  • a compressor (12) that compresses a refrigerant and discharges a high-temperature and high-pressure refrigerant
  • a condenser (13) capable of cooling the refrigerant by flowing in the refrigerant discharged from the compressor (12) and exchanging heat with air.
  • An expansion valve (31) for a cooling device in which the refrigerant flowing out of the condenser (13) flows in to make the refrigerant at a low temperature and a low pressure
  • a heat exchanger (32) through which a low-temperature low-pressure refrigerant flowing out of the expansion valve (31) for a cooling device flows.
  • a vehicle battery cooling device (10) capable of cooling the battery (20) by thermally coupling the heat exchanger (32) to the battery (20).
  • a temperature detecting unit (21, 33) capable of detecting the temperature of the refrigerant downstream of the heat exchanger (32) or detecting the temperature of the battery (20) with reference to the flow direction of the refrigerant.
  • a vehicle battery cooling device comprising a control unit (34) capable of controlling the flow rate of the refrigerant flowing through the refrigerant flow path (11) based on the information from the temperature detection units (21, 33). (10) is provided.
  • the control unit (34) controls the flow rate of the refrigerant flowing through the refrigerant flow path (11) based on the information from the pressure detection unit (33) in addition to the information from the temperature detection unit (33). May be.
  • the compressor (12) is an electric compressor having an electric motor for the compressor and a compression mechanism.
  • the control unit (34) outputs a rotation instruction signal indicating the rotation speed of the electric motor for the compressor, and outputs the rotation instruction signal.
  • the flow rate of the refrigerant may be controlled by controlling the rotation speed of the compression mechanism through the rotation speed instruction signal.
  • the air volume adjusting means (14) for adjusting the amount of air passing through the condenser (13) is provided.
  • the control unit (34) may control the flow rate of the refrigerant by controlling the air flow rate adjusting means (14).
  • the condenser (13) has a fan (15) capable of forcibly passing air through the condenser (13).
  • the control unit (34) may control the flow rate of the refrigerant by controlling the rotation speed of the fan (15).
  • a compressor (12) that compresses the refrigerant and discharges the refrigerant having a high temperature and high pressure
  • a condenser (13) capable of cooling the refrigerant by flowing in the refrigerant discharged from the compressor (12) and exchanging heat with air.
  • An expansion valve (31) for a cooling device in which the refrigerant flowing out of the condenser (13) flows in to make the refrigerant at a low temperature and a low pressure
  • a heat exchanger (32) through which a low-temperature low-pressure refrigerant flowing out of the expansion valve (31) for a cooling device flows.
  • the vehicle battery cooling device (10) that has In a method for cooling a battery that cools the battery (20) by thermally coupling the heat exchanger (32) to the battery (20).
  • a temperature contrast step that compares the temperature detected in this detection step with the threshold temperature
  • the vehicle is characterized by having a pressure increasing step of increasing the pressure of the refrigerant flowing out of the condenser (13) when the temperature of the refrigerant or the battery (20) exceeds the threshold temperature in the temperature comparison step.
  • a cooling method for the battery is provided.
  • the cooling device 10 has a compressor 12 that compresses the refrigerant and discharges the high-temperature and high-pressure refrigerant onto the refrigerant flow path 11 through which the refrigerant flows, and the refrigerant discharged from the compressor 12 flows into the heat of the air.
  • a condenser 13 capable of cooling the refrigerant by exchange, a shutter 14 (air volume adjusting means 14) for adjusting the amount of air passing through the condenser 13, and a condenser 13 arranged in the vicinity of the condenser 13 are forced to be forced.
  • the air conditioner 40 includes an air conditioner on-off valve 42 that allows the passage of the refrigerant or shuts off the refrigerant, and a mechanical expansion valve 43 for the air conditioner that reduces the pressure of the refrigerant that has passed through the air conditioner on-off valve 42 to a low temperature and low pressure. It has an evaporator 44 that cools air by a refrigerant that has passed through the expansion valve 43 for an air conditioner, and a fan 45 for an air conditioner that sends air to the evaporator 44.
  • control unit 34 controls the flow rate of the refrigerant by controlling the shutter 14. Even when a mechanical compressor is adopted, the flow rate of the refrigerant can be controlled, and when it is desired to increase the flow rate of the refrigerant, the required electric power does not increase, which is preferable.
  • control unit 34 controls the flow rate of the refrigerant by controlling the rotation speed of the fan 15. Even when a mechanical compressor is used, the flow rate of the refrigerant can be controlled, which is preferable.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Automation & Control Theory (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Secondary Cells (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Abstract

Le problème selon l'invention consiste à fournir une technologie de refroidissement qui peut refroidir efficacement une batterie. La solution selon l'invention porte sur un dispositif de refroidissement de batterie de véhicule (10) comprenant un compresseur (12), un condenseur (13), une soupape de détente de dispositif de refroidissement (31), un échangeur de chaleur (32) et un trajet d'écoulement de réfrigérant (11) qui raccorde ce qui précède et à l'intérieur duquel un réfrigérant circule. L'échangeur de chaleur (32) est apte à refroidir une batterie (20). Le dispositif de refroidissement de batterie de véhicule (10) comprend en outre des unités de détection de température (21, 33) aptes à détecter la température du réfrigérant en aval de l'échangeur de chaleur (32) ou à détecter la température de la batterie (20), et une unité de commande (34) apte à commander le débit du réfrigérant s'écoulant à travers le trajet d'écoulement de réfrigérant (1).
PCT/JP2021/033126 2020-09-14 2021-09-09 Dispositif de refroidissement de batterie de véhicule et procédé de refroidissement de batterie de véhicule WO2022054865A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2020153688 2020-09-14
JP2020-153688 2020-09-14

Publications (1)

Publication Number Publication Date
WO2022054865A1 true WO2022054865A1 (fr) 2022-03-17

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2021/033126 WO2022054865A1 (fr) 2020-09-14 2021-09-09 Dispositif de refroidissement de batterie de véhicule et procédé de refroidissement de batterie de véhicule

Country Status (1)

Country Link
WO (1) WO2022054865A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112820980A (zh) * 2021-01-21 2021-05-18 扬州大学 一种多级冷却式电池包及其冷却方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012004926A1 (fr) * 2010-07-09 2012-01-12 株式会社ヴァレオジャパン Appareil de refroidissement de batterie
JP2013060066A (ja) * 2011-09-12 2013-04-04 Daikin Industries Ltd 自動車用温調システム
JP2014153016A (ja) * 2013-02-12 2014-08-25 Nippon Soken Inc 冷却装置
JP2017105425A (ja) * 2015-12-08 2017-06-15 現代自動車株式会社Ｈｙｕｎｄａｉ Ｍｏｔｏｒ Ｃｏｍｐａｎｙ 車両用バッテリ冷却システム
JP2018136107A (ja) * 2017-02-23 2018-08-30 株式会社デンソー 冷凍サイクル装置
JP2019124449A (ja) * 2018-01-15 2019-07-25 ダイキン工業株式会社 製氷システム
JP2019155999A (ja) * 2018-03-08 2019-09-19 三菱自動車工業株式会社 バッテリ冷却システム

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012004926A1 (fr) * 2010-07-09 2012-01-12 株式会社ヴァレオジャパン Appareil de refroidissement de batterie
JP2013060066A (ja) * 2011-09-12 2013-04-04 Daikin Industries Ltd 自動車用温調システム
JP2014153016A (ja) * 2013-02-12 2014-08-25 Nippon Soken Inc 冷却装置
JP2017105425A (ja) * 2015-12-08 2017-06-15 現代自動車株式会社Ｈｙｕｎｄａｉ Ｍｏｔｏｒ Ｃｏｍｐａｎｙ 車両用バッテリ冷却システム
JP2018136107A (ja) * 2017-02-23 2018-08-30 株式会社デンソー 冷凍サイクル装置
JP2019124449A (ja) * 2018-01-15 2019-07-25 ダイキン工業株式会社 製氷システム
JP2019155999A (ja) * 2018-03-08 2019-09-19 三菱自動車工業株式会社 バッテリ冷却システム

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112820980A (zh) * 2021-01-21 2021-05-18 扬州大学 一种多级冷却式电池包及其冷却方法
CN112820980B (zh) * 2021-01-21 2022-06-10 扬州大学 一种多级冷却式电池包及其冷却方法

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