WO2025112751A1 - 电池热管理系统和用电设备 - Google Patents

电池热管理系统和用电设备 Download PDF

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Publication number
WO2025112751A1
WO2025112751A1 PCT/CN2024/116675 CN2024116675W WO2025112751A1 WO 2025112751 A1 WO2025112751 A1 WO 2025112751A1 CN 2024116675 W CN2024116675 W CN 2024116675W WO 2025112751 A1 WO2025112751 A1 WO 2025112751A1
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WIPO (PCT)
Prior art keywords
valve
heat exchanger
battery
heater
heat exchange
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
PCT/CN2024/116675
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English (en)
French (fr)
Inventor
刘智霖
余业龙
冯嘉茂
熊柏钧
彭青波
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BYD Co Ltd
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BYD Co Ltd
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Filing date
Publication date
Application filed by BYD Co Ltd filed Critical BYD Co Ltd
Publication of WO2025112751A1 publication Critical patent/WO2025112751A1/zh
Anticipated expiration legal-status Critical
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/61Types of temperature control
    • H01M10/613Cooling or keeping cold
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION 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
    • B60L58/00Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/24Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
    • B60L58/26Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION 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
    • B60L58/00Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/24Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
    • B60L58/27Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by heating
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/61Types of temperature control
    • H01M10/615Heating or keeping warm
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/61Types of temperature control
    • H01M10/617Types of temperature control for achieving uniformity or desired distribution of temperature
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/62Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625Vehicles
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/65Means for temperature control structurally associated with the cells
    • H01M10/655Solid structures for heat exchange or heat conduction
    • H01M10/6556Solid parts with flow channel passages or pipes for heat exchange
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/65Means for temperature control structurally associated with the cells
    • H01M10/656Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6567Liquids
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/65Means for temperature control structurally associated with the cells
    • H01M10/656Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6567Liquids
    • H01M10/6568Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Definitions

  • the present disclosure relates to the technical field of battery thermal management, and in particular, to a battery thermal management system and an electric device.
  • the temperature of the battery depends on the battery system heat exchanger.
  • the heat exchange medium in the battery system heat exchanger can absorb the heat provided by the heater to heat the battery, or release heat to the refrigerant through the plate heat exchanger of the air conditioning system to cool the battery so as to keep the battery at a certain temperature.
  • the battery system heat exchanger provided in the related art has a relatively simple structure and can only achieve cooling or heating of the battery as a whole. However, in fact, the cold and hot loads required by different parts of the battery are not the same, resulting in a large temperature difference between different parts of the battery, affecting the performance of the battery.
  • the purpose of the present disclosure is to provide a battery thermal management system and an electrical device to solve the technical problem of large temperature differences between various parts of the battery in the related art.
  • the present disclosure provides a battery thermal management system, including a heat exchange module, a battery temperature control module and a heater used as a heat source, the battery temperature control module includes multiple battery heat exchange parts, the heat exchange module has a first heat exchanger used as a cold source, the first heat exchanger and the heater can be selectively connected to the battery temperature control module, and the multiple battery heat exchange parts can be selectively connected to the heat exchange medium circulation of the battery temperature control module.
  • the multiple battery heat exchange parts include a first battery heat exchange part and a second battery heat exchange part
  • the battery temperature control module includes a battery heat exchanger
  • the multiple flow channels of the battery heat exchanger are divided into mutually independent first flow channel areas and second flow channel areas, the first flow channel area is formed as a first battery heat exchange part, and the second flow channel area is formed as a second battery heat exchange part.
  • the multiple battery heat exchange parts include a first battery heat exchange part and a second battery heat exchange part
  • the battery temperature control module includes a first battery heat exchanger and a second battery heat exchanger
  • the first battery heat exchanger is formed as a first battery heat exchange part
  • the second battery heat exchanger is formed as a second battery heat exchange part.
  • the plurality of battery heat exchange parts include a first battery heat exchange part and a second battery heat exchange part, and the first battery heat exchange part and the second battery heat exchange part are arranged in parallel.
  • the plurality of battery heat exchange parts include a first battery heat exchange part and a second battery heat exchange part, and the first battery heat exchange part and the second battery heat exchange part are selectively connected in parallel or in series.
  • the heater and the first heat exchanger are arranged on a main road upstream of the diversion port, and the first battery heat exchange unit and the second battery heat exchange unit share the heater and the first heat exchanger.
  • the battery thermal management system includes a first heater and a second heater, and the first heater and the second heater are respectively arranged on corresponding parallel branches to heat the heat exchange medium flowing into the first battery heat exchange part and the second battery heat exchange part respectively.
  • the first heat exchangers are respectively provided on the parallel branches where the first battery heat exchange unit and the second battery heat exchange unit are located, and the first heat exchangers are connected in parallel to the corresponding parallel branches.
  • the battery thermal management system further includes a third heater, which is disposed on a main path upstream of the diversion port, and the first heater, the second heater, and the third heater can be selectively connected to the battery temperature control module, respectively.
  • the multiple battery heat exchange parts include a first battery heat exchange part and a second battery heat exchange part, and the first battery heat exchange part and the second battery heat exchange part are respectively arranged at different positions of the battery.
  • the battery temperature control module includes a power component for driving the circulation of a heat exchange medium, a first battery heat exchanger and a second battery heat exchanger connected in parallel, a first valve is provided on a first parallel branch where the first battery heat exchanger is located, and a second valve is provided on a second parallel branch where the second battery heat exchanger is located, the first heat exchanger and the heater are arranged on a main road located upstream of the diversion port and are connected in parallel through a first three-way valve.
  • the battery thermal management system has at least one of the following modes:
  • the first three-way valve connects the first heat exchanger and the power component, the first valve is opened, the second valve is closed, and the power component drives the heat exchange medium to flow through the first heat exchanger and the first battery heat exchanger;
  • the first three-way valve connects the first heat exchanger and the power component, the first valve is closed, the second valve is opened, and the power component drives the heat exchange medium to flow through the first heat exchanger and the second battery heat exchanger;
  • the first three-way valve connects the first heat exchanger and the power component, the first valve is opened, the second valve is opened, and the power component drives the heat exchange medium to flow through the first heat exchanger and then is divided into two paths, flowing through the first battery heat exchanger and the second battery heat exchanger at the same time;
  • the first three-way valve connects the first heat exchanger and the power component.
  • the first valve In a first preset time period, the first valve is opened, the second valve is closed, and the power component drives the heat exchange medium to flow through the first heat exchanger and the first battery heat exchanger.
  • the first valve In a second preset time period, the first valve is closed, the second valve is opened, and the power component drives the heat exchange medium to flow through the first heat exchanger and the second battery heat exchanger.
  • the first three-way valve connects the heater and the power component, the heater is heated, the first valve is opened, the second valve is closed, and the power component drives the heat exchange medium to flow through the heater and the first battery heat exchanger;
  • the first three-way valve connects the heater and the power component, the heater is heated, the first valve is closed, the second valve is opened, and the power component drives the heat exchange medium to flow through the heater and the second battery heat exchanger;
  • the first three-way valve connects the heater and the power component, the heater is heated, the first valve is opened, the second valve is opened, and the power component drives the heat exchange medium to flow through the heater and then is divided into two paths, flowing through the first battery heat exchanger and the second battery heat exchanger at the same time;
  • the first three-way valve connects the heater and the power component, the heater is heated, within a first preset time period, the first valve is opened, the second valve is closed, and the power component drives the heat exchange medium to flow through the heater and the first battery heat exchanger; within a second preset time period, the first valve is closed, the second valve is opened, and the power component drives the heat exchange medium to flow through the heater and the second battery heat exchanger;
  • the first three-way valve connects the heater and the power component, the heater is turned off for heating, the first valve is opened, the second valve is opened, and the power component drives the heat exchange medium to flow between the first battery heat exchanger and the second battery heat exchanger;
  • the first three-way valve connects the heater and the power component, the heater turns off heating, and the power component drives the heat exchange medium to flow in the first battery heat exchanger or the second battery heat exchanger.
  • the battery temperature control module includes a power component for driving the circulation of a heat exchange medium, a first battery heat exchanger and a second battery heat exchanger connected in parallel, a first valve is provided on a first parallel branch where the first battery heat exchanger is located, and a second valve is provided on a second parallel branch where the second battery heat exchanger is located, the first heat exchanger is arranged on a main road upstream of the diversion port and can be selectively connected through a first three-way valve, the battery thermal management system includes a first heater and a second heater, the first heater is arranged on the first parallel branch through a second three-way valve, and the second heater is arranged on the second parallel branch through a third three-way valve.
  • the battery thermal management system has at least one of the following modes:
  • the first three-way valve connects the first heat exchanger and the power component, the second three-way valve short-circuits the first heater, the third three-way valve is closed, the first valve is opened, the second valve is closed, and the power component drives the heat exchange medium to flow through the first heat exchanger and the first battery heat exchanger;
  • the first three-way valve connects the first heat exchanger and the power component, the second three-way valve is closed, the third three-way valve short-circuits the second heater, the first valve is closed, the second valve is opened, and the power component drives the heat exchange medium to flow through the first heat exchanger and the second battery heat exchanger;
  • the first three-way valve connects the first heat exchanger and the power component, the second three-way valve short-circuits the first heater, and the third three-way valve short-circuits the second heater.
  • the first valve is opened, the second valve is opened, and the power component drives the heat exchange medium to flow through the first heat exchanger and then is divided into two paths, flowing through the first battery heat exchanger and the second battery heat exchanger at the same time.
  • the first three-way valve connects the first heat exchanger and the power component.
  • the second three-way valve short-circuits the first heater, the third three-way valve is closed, the first valve is opened, the second valve is closed, and the power component drives the heat exchange medium to flow through the first heat exchanger and the first battery heat exchanger.
  • the second three-way valve is closed, the third three-way valve short-circuits the second heater, the first valve is closed, the second valve is opened, and the power component drives the heat exchange medium to flow through the first heat exchanger and the second battery heat exchanger.
  • the first three-way valve short-circuits the first heat exchanger, the second three-way valve points to the first heater, the third three-way valve is closed, the first heater is heated, the first valve is opened, the second valve is closed, and the power element drives the heat exchange medium to flow through the first heater and the first battery heat exchanger;
  • the first three-way valve short-circuits the first heat exchanger, the second three-way valve is closed, the third three-way valve points to the second heater, the second heater is heated, the first valve is closed, the second valve is opened, and the power member drives the heat exchange medium to flow through the second heater and the second battery heat exchanger;
  • the first three-way valve short-circuits the first heat exchanger, the second three-way valve points to the first heater, and the third three-way valve points to the second heater.
  • the first heater and the second heater are heated, the first valve is opened, the second valve is opened, and the power component drives the heat exchange medium to flow through the heater and then be divided into two paths, and flow through the first battery heat exchanger and the second battery heat exchanger at the same time;
  • the first three-way valve short-circuits the first heat exchanger.
  • the second three-way valve points to the first heater, the third three-way valve is closed, the first heater is heated, the first valve is opened, the second valve is closed, and the power component drives the heat exchange medium to flow through the first heater and the first battery heat exchanger.
  • the first three-way valve short-circuits the first heat exchanger, the second three-way valve is closed, the third three-way valve points to the second heater, the second heater is heated, the first valve is closed, the second valve is opened, and the power component drives the heat exchange medium to flow through the second heater and the second battery heat exchanger.
  • the first three-way valve short-circuits the first heat exchanger
  • the second three-way valve short-circuits the first heater
  • the third three-way valve short-circuits the second heater
  • the first valve is opened
  • the second valve is opened
  • the power member drives the heat exchange medium to flow between the first battery heat exchanger and the second battery heat exchanger
  • the first three-way valve short-circuits the first heat exchanger
  • the second three-way valve short-circuits the first heater
  • the third three-way valve short-circuits the second heater
  • the power component drives the heat exchange medium to flow in the first battery heat exchanger or the second battery heat exchanger.
  • the battery temperature control module includes a power component for driving the circulation of a heat exchange medium, a first battery heat exchanger and a second battery heat exchanger connected in parallel, a first valve is provided on a first parallel branch where the first battery heat exchanger is located, a second valve is provided on a second parallel branch where the second battery heat exchanger is located, and the first heat exchanger and/or the heater are provided between the power component and the battery heat exchanger.
  • the battery thermal management system includes a sixth valve connected between the first valve and the power component.
  • the battery thermal management system has a first mode, the first valve and the sixth valve are opened, and the power component drives the heat exchange medium to flow through the first heat exchanger and/or the heater and then flow into the first battery heat exchanger.
  • the battery thermal management system includes a second parallel circuit connecting the second valve and the power component, a seventh valve is provided on the second parallel circuit, and a fourth valve is provided between the first parallel branch and the second battery heat exchanger;
  • the battery thermal management system has a second mode, the fourth valve, the second valve and the seventh valve are opened, and the power component drives the heat exchange medium to flow through the first heat exchanger and/or the heater and then flow into the second battery heat exchanger.
  • the battery thermal management system includes a sixth valve connected between the first valve and the power component, a seventh valve is provided on the second parallel circuit connecting the second valve and the power component, and a fourth valve is provided between the first parallel branch and the second battery heat exchanger;
  • the battery thermal management system has a third mode, the first valve, the sixth valve, the second valve, the seventh valve and the fourth valve are opened, and the power component drives the heat exchange medium to flow through the first heat exchanger and/or the heater and then is divided into two paths, flowing through the first battery heat exchanger and the second battery heat exchanger at the same time.
  • the battery thermal management system further includes a third parallel branch connected in parallel between the first battery heat exchanger and the second battery heat exchanger, a third valve is provided on the third parallel branch, and a seventh valve is provided on the second parallel circuit connecting the second valve and the power component.
  • the battery thermal management system has a fourth mode, the first valve, the third valve, the second valve and the fifth valve are opened, and the power component drives the heat exchange medium to flow through the first heat exchanger and/or the heater, the first battery heat exchanger and the second battery heat exchanger in sequence.
  • the heater and/or the first heat exchanger are arranged on a main path upstream of the diversion port and are connected in parallel through a first three-way valve.
  • the battery thermal management system includes a first heater and a second heater, the first heater and/or the first heat exchanger are arranged on a first parallel branch through a second three-way valve, and the second heater and/or the first heat exchanger are arranged on a second parallel branch through a third three-way valve.
  • the battery temperature control module includes a first battery heat exchanger and a second battery heat exchanger connected in parallel, a first valve is provided on a first parallel branch where the first battery heat exchanger is located, a second valve is provided on a second parallel branch where the second battery heat exchanger is located, the first heat exchanger and the heater are arranged on a main road located upstream of the diversion port and are connected in parallel through a first three-way valve,
  • the battery thermal management system further includes a third parallel branch connected in parallel between the first battery heat exchanger and the second battery heat exchanger, wherein a third valve is disposed on the third parallel branch.
  • a fourth valve is provided on the pipeline connecting the first parallel branch and the third parallel branch, and a fifth valve is provided on the pipeline connecting the second parallel branch and the third parallel branch.
  • a sixth valve is provided on the first parallel circuit connecting the first valve and the power element, and a seventh valve is provided on the second parallel circuit connecting the second valve and the power element.
  • the first parallel circuit and the second parallel circuit are arranged in parallel.
  • the battery thermal management system has at least one of the following modes:
  • the first three-way valve connects the first heat exchanger and the power component, the first valve and the sixth valve are opened, and the other valves are closed, and the power component drives the heat exchange medium to flow through the first heat exchanger and the first battery heat exchanger;
  • the first three-way valve connects the first heat exchanger and the power component, the fourth valve, the second valve and the seventh valve are opened, and the remaining valves are closed, and the power component drives the heat exchange medium to flow through the first heat exchanger and the second battery heat exchanger;
  • the first three-way valve connects the first heat exchanger and the power component, the first valve, the sixth valve, the second valve, the seventh valve and the fourth valve are opened, and the remaining valves are closed, and the power component drives the heat exchange medium to flow through the first heat exchanger and then is divided into two paths, flowing through the first battery heat exchanger and the second battery heat exchanger at the same time;
  • the first three-way valve connects the first heat exchanger and the power component, the first valve, the third valve, the second valve and the fifth valve are opened, and the remaining valves are closed, and the power component drives the heat exchange medium to flow through the first heat exchanger, the first battery heat exchanger and the second battery heat exchanger in sequence;
  • the first three-way valve connects the first heat exchanger and the power component.
  • the first valve and the sixth valve are opened, and the other valves are closed, and the power component drives the heat exchange medium to flow through the first heat exchanger and the first battery heat exchanger.
  • the fourth valve, the second valve and the seventh valve are opened, and the other valves are closed, and the power component drives the heat exchange medium to flow through the first heat exchanger and the second battery heat exchanger.
  • the first three-way valve connects the heater and the power component, the heater is heated, the first valve and the sixth valve are opened, and the other valves are closed, and the power component drives the heat exchange medium to flow through the heater and the first battery heat exchanger;
  • the first three-way valve connects the heater and the power component, the heater is heated, the fourth valve, the second valve and the seventh valve are opened, and the remaining valves are closed, and the power component drives the heat exchange medium to flow through the heater and the second battery heat exchanger;
  • the first three-way valve connects the heater and the power component, the heater is heated, the first valve, the sixth valve, the second valve, the seventh valve and the fourth valve are opened, and the remaining valves are closed, and the power component drives the heat exchange medium to flow through the heater and then be divided into two paths, and flow through the first battery heat exchanger and the second battery heat exchanger at the same time;
  • the first three-way valve connects the heater and the power component, the heater is heated, the first valve, the third valve, the second valve and the fifth valve are opened, and the remaining valves are closed, and the power component drives the heat exchange medium to flow through the heater, the first battery heat exchanger and the second battery heat exchanger in sequence;
  • the first three-way valve connects the heater and the power component, the heater is heated, and within a first preset time period, the first valve and the sixth valve are opened, and the remaining valves are closed, and the power component drives the heat exchange medium to flow through the heater and the first battery heat exchanger; within a second preset time period, the fourth valve, the second valve, and the seventh valve are opened, and the remaining valves are closed, and the power component drives the heat exchange medium to flow through the heater and the second battery heat exchanger;
  • the first three-way valve connects the heater and the power component, the heater is turned off for heating, the first valve, the sixth valve, the second valve, the seventh valve and the fourth valve are opened, and the remaining valves are closed, and the power component drives the heat exchange medium to flow through the first battery heat exchanger and the second battery heat exchanger at the same time;
  • the first three-way valve connects the heater and the power component, the heater is turned off for heating, the first valve, the third valve, the second valve and the fifth valve are opened, and the remaining valves are closed, and the power component drives the heat exchange medium to flow through the first battery heat exchanger and the second battery heat exchanger in sequence;
  • the first three-way valve connects the heater and the power component, the heater turns off heating, and the power component drives the heat exchange medium to flow in the first battery heat exchanger or the second battery heat exchanger.
  • the battery temperature control module includes a power component for driving the circulation of a heat exchange medium, a first battery heat exchanger and a second battery heat exchanger connected in parallel, a first valve is provided on a first parallel branch where the first battery heat exchanger is located, and a second valve is provided on a second parallel branch where the second battery heat exchanger is located.
  • the first heat exchanger is arranged on a main road located upstream of the diversion port and can be selectively connected through a first three-way valve.
  • the battery thermal management system includes a first heater and a second heater. The first heater is arranged on a first parallel branch through a second three-way valve, and the second heater is arranged on a second parallel branch through a third three-way valve.
  • the battery thermal management system further includes a third parallel branch connected in parallel between the first battery heat exchanger and the second battery heat exchanger, wherein a third valve is disposed on the third parallel branch.
  • a fourth valve is provided on the pipeline connecting the first parallel branch and the third parallel branch, and a fifth valve is provided on the pipeline connecting the second parallel branch and the third parallel branch.
  • a sixth valve is provided on the first parallel circuit connecting the first valve and the power element, and a seventh valve is provided on the second parallel circuit connecting the second valve and the power element.
  • the first parallel circuit and the second parallel circuit are arranged in parallel.
  • the battery thermal management system has at least one of the following modes:
  • the first three-way valve connects the first heat exchanger and the power component, the second three-way valve short-circuits the first heater, the third three-way valve is closed, the first valve and the sixth valve are opened, and the remaining valves are closed, and the power component drives the heat exchange medium to flow through the first heat exchanger and the first battery heat exchanger;
  • the first three-way valve connects the first heat exchanger and the power component, the second three-way valve is closed, the third three-way valve short-circuits the second heater, the fourth valve, the second valve and the seventh valve are opened, and the remaining valves are closed, and the power component drives the heat exchange medium to flow through the first heat exchanger and the second battery heat exchanger;
  • the first three-way valve connects the first heat exchanger and the power component, the second three-way valve short-circuits the first heater, the third three-way valve short-circuits the second heater, the first valve, the sixth valve, the second valve, the seventh valve and the fourth valve are opened, and the remaining valves are closed, and the power component drives the heat exchange medium to flow through the first heat exchanger and then be divided into two paths, and flow through the first battery heat exchanger and the second battery heat exchanger at the same time;
  • the first three-way valve connects the first heat exchanger and the power component, the second three-way valve short-circuits the first heater, the third three-way valve short-circuits the second heater, the first valve, the third valve, the second valve and the fifth valve are opened, and the remaining valves are closed, and the power component drives the heat exchange medium to flow through the first heat exchanger, the first battery heat exchanger and the second battery heat exchanger in sequence;
  • the first three-way valve connects the first heat exchanger and the power component.
  • the second three-way valve short-circuits the first heater
  • the third three-way valve is closed
  • the first valve and the sixth valve are opened
  • the remaining valves are closed.
  • the power component drives the heat exchange medium to flow through the first heat exchanger and the first battery heat exchanger.
  • the second three-way valve is closed, the third three-way valve short-circuits the second heater, the fourth valve, the second valve and the seventh valve are opened, and the remaining valves are closed.
  • the power component drives the heat exchange medium to flow through the first heat exchanger and the second battery heat exchanger.
  • the first three-way valve short-circuits the first heat exchanger, the second three-way valve points to the first heater, the third three-way valve is closed, the first heater is heated, the first valve and the sixth valve are opened, and the other valves are closed, and the power element drives the heat exchange medium to flow through the first heater and the first battery heat exchanger;
  • the first three-way valve short-circuits the first heat exchanger, the second three-way valve is closed, the third three-way valve points to the second heater, the second heater is heated, the fourth valve, the second valve and the seventh valve are opened, and the remaining valves are closed, and the power member drives the heat exchange medium to flow through the heater and the second battery heat exchanger;
  • the first three-way valve short-circuits the first heat exchanger, the second three-way valve points to the first heater, and the third three-way valve points to the second heater.
  • the first heater and the second heater are heated, the first valve, the sixth valve, the second valve, the seventh valve and the fourth valve are opened, and the remaining valves are closed.
  • the power component drives the heat exchange medium flow to be divided into two paths, which flow into the first heater and the second heater for heating respectively, and flow through the first battery heat exchanger and the second battery heat exchanger at the same time;
  • the first three-way valve short-circuits the first heat exchanger, the second three-way valve points to the first heater, and the third three-way valve points to the second heater.
  • the first heater and the second heater are heated, the first valve, the third valve, the second valve, and the fifth valve are opened, and the remaining valves are closed.
  • the power component drives the heat exchange medium to flow through the first heater, the first battery heat exchanger, the second heater, and the second battery heat exchanger in sequence.
  • the first three-way valve short-circuits the first heat exchanger.
  • the second three-way valve points to the first heater
  • the third three-way valve is closed
  • the first heater is heated
  • the first valve and the sixth valve are opened
  • the remaining valves are closed
  • the power component drives the heat exchange medium to flow through the first heater and the first battery heat exchanger.
  • the second three-way valve is closed, the third three-way valve points to the second heater, the second heater is heated, the fourth valve, the second valve and the seventh valve are opened, and the remaining valves are closed, and the power component drives the heat exchange medium to flow through the heater and the second battery heat exchanger.
  • the first three-way valve short-circuits the first heat exchanger
  • the second three-way valve short-circuits the first heater
  • the third three-way valve short-circuits the second heater
  • the first valve, the sixth valve, the second valve, the seventh valve and the fourth valve are opened, and the remaining valves are closed, and the power component drives the heat exchange medium to flow through the first battery heat exchanger and the second battery heat exchanger at the same time;
  • the first three-way valve short-circuits the first heat exchanger
  • the second three-way valve short-circuits the first heater
  • the third three-way valve short-circuits the second heater
  • the first valve, the third valve, the second valve and the fifth valve are opened, and the remaining valves are closed, and the power component drives the heat exchange medium to flow through the first battery heat exchanger and the second battery heat exchanger in sequence
  • the first three-way valve short-circuits the first heat exchanger
  • the second three-way valve short-circuits the first heater
  • the third three-way valve short-circuits the second heater
  • the power component drives the heat exchange medium to flow in the first battery heat exchanger or the second battery heat exchanger.
  • the heat exchange module includes a compressor, an environmental heat exchanger, an expansion valve, a first heat exchanger and a second heat exchanger connected in sequence, and a four-way reversing valve is provided between the compressor and the environmental heat exchanger.
  • the first heat exchanger and the second heat exchanger are connected in parallel, a first electronic expansion valve is provided on the pipeline provided with the first heat exchanger, and a second electronic expansion valve is provided on the pipeline provided with the second heat exchanger.
  • the first electronic expansion valve is closed, and the battery temperature control module and the heat exchange module are independent of each other;
  • the first electronic expansion valve is opened, the first heat exchanger is connected to the battery temperature control module, and part of the heat of the battery temperature control module is used for the heat exchange module.
  • the battery thermal management system further includes a temperature detection element disposed upstream or downstream of the plurality of battery heat exchange parts to control whether the plurality of battery heat exchange parts are operating according to information acquired by the temperature detection element.
  • an electric device comprising the above-mentioned battery thermal management system.
  • multiple battery heat exchange parts correspond to different parts of the battery respectively, and the multiple battery heat exchange parts are independent of each other.
  • the flow rate and circulation time of the heat exchange medium in each battery heat exchange part can be controlled separately.
  • the temperature of each part of the battery can be adjusted to achieve a uniform temperature.
  • the first heat exchanger and the heater can be selectively connected to the battery temperature control module as a cold source and a heat source respectively.
  • the heat exchange medium after heat dissipation by the first heat exchanger (the temperature of the heat exchange medium is relatively low at this time) can selectively flow into at least one of the multiple battery heat exchange parts to absorb the heat of the battery to cool the battery; the heat exchange medium after heating by the heater (the temperature of the heat exchange medium is relatively high at this time) can selectively flow into at least one of the multiple battery heat exchange parts to release heat to heat the battery, and heat or cool the heat exchange medium in the battery heat exchange part, so that the battery heating and cooling process can be flexibly adjusted and precisely controlled to reduce the temperature difference between the various parts of the battery.
  • each battery heat exchange part is shortened, the flow resistance is reduced, the pressure drop of the heat exchange medium at the inlet and outlet is significantly reduced, and the temperature drop is reduced, which further reduces the battery temperature difference and improves the overall performance of the battery.
  • FIG1 is a schematic diagram of a battery thermal management system provided by an embodiment of the present disclosure.
  • FIG. 1a is a schematic diagram of a battery thermal management system provided in a related embodiment of the present disclosure (liquid cooling mode);
  • FIG1b is a schematic diagram of a battery thermal management system provided in a related embodiment of the present disclosure (liquid thermal mode);
  • FIG2 is a schematic diagram of a battery thermal management system provided by a first exemplary embodiment of the present disclosure
  • FIGS. 2a to 2h are schematic diagrams of a battery thermal management system in different operating modes provided by a first exemplary embodiment of the present disclosure
  • FIG3 is a schematic diagram of a battery thermal management system provided by a second exemplary embodiment of the present disclosure.
  • 3a to 3g are schematic diagrams of a battery thermal management system in different operating modes provided by a second exemplary embodiment of the present disclosure
  • FIG4 is a schematic diagram of a battery thermal management system provided by a third exemplary embodiment of the present disclosure.
  • FIGS. 4a to 4j are schematic diagrams of a battery thermal management system in different operating modes provided by a third exemplary embodiment of the present disclosure.
  • FIG. 5 is a schematic diagram of a battery thermal management system provided by a fourth exemplary embodiment of the present disclosure.
  • 5a to 5j are schematic diagrams of a battery thermal management system in different operating modes provided by a fourth exemplary embodiment of the present disclosure.
  • FIG. 6 is a schematic diagram of a battery thermal management system provided by a fifth exemplary embodiment of the present disclosure.
  • FIG. 7 is a schematic diagram of a battery heat exchanger in a battery thermal management system according to an exemplary embodiment of the present disclosure.
  • the new energy vehicle battery thermal management system includes a compressor 14, a reversing valve 15, a passenger compartment air conditioning system heat exchanger, a plate heat exchanger, a first electronic expansion valve 16, a second electronic expansion valve 17, an expansion valve 18, an ambient heat exchanger 13, a water pump, a battery system heat exchanger 10, a heater and a three-way valve.
  • the automobile air conditioning system is adjusted to the cooling mode, and the refrigerant cycle is as follows: the gaseous low-pressure refrigerant is converted into a gaseous high-pressure refrigerant through the compressor 14, and then releases heat and is converted into a liquid high-pressure refrigerant through the environmental heat exchanger 13. After the liquid high-pressure refrigerant is converted into a liquid low-pressure refrigerant through the expansion valve 18, it is divided into two parallel paths, which absorb heat and convert into gaseous low-pressure refrigerant through the passenger compartment air conditioning system heat exchanger and the plate heat exchanger respectively. The flow of the two refrigerants is coordinated by the first electronic expansion valve 16 and the second electronic expansion valve 17.
  • the heat exchange medium circulates as follows: the heat exchange medium circulates in the cooling circuit composed of the water pump, the plate heat exchanger and the battery system heat exchanger 10 under the driving action of the water pump. The heat exchange medium releases heat through the plate heat exchanger and reaches a certain temperature. At this time, liquid low-pressure refrigerant flows in the plate heat exchanger, and then absorbs the heat of the battery when passing through the battery system heat exchanger 10 to complete the cooling of the battery system.
  • the first electronic expansion valve 16 is closed, and the air conditioning system and the liquid heat system are independent of each other and do not interfere with each other.
  • the heat exchange medium circulates as follows: the heat exchange medium circulates in the heating circuit composed of the water pump, the heater and the battery system heat exchanger 10 under the driving action of the water pump. The heat exchange medium absorbs heat through the heater to reach a certain temperature, and then releases heat when passing through the battery system heat exchanger to complete the heating of the battery system.
  • the air conditioning system is adjusted to the heating mode by changing the reversing valve 15.
  • the gaseous low-pressure refrigerant is converted into a gaseous high-pressure refrigerant through the compressor 14, and first passes through the passenger compartment air conditioning system heat exchanger (equivalent to the condenser) to release heat and convert into a liquid high-pressure refrigerant to complete the heating of the passenger compartment.
  • the liquid high-pressure refrigerant is converted into a liquid low-pressure refrigerant through the second electronic expansion valve 17 and the expansion valve 18, it absorbs heat and converts into a gaseous low-pressure refrigerant through the environmental heat exchanger (equivalent to the evaporator), and returns to the compressor 14 through the reversing valve 15.
  • the flow channel of the battery system heat exchanger is long and the flow resistance is large, resulting in a large pressure drop and temperature drop at the inlet and outlet of the heat exchange medium, which is not conducive to controlling the temperature difference of the battery and affects the overall performance of the battery.
  • the present disclosure provides a battery thermal management system, which includes a heat exchange module 1 and a battery temperature control module 2 (shown in a dotted box).
  • the heat exchange module 1 has a first heat exchanger 11 used as a cold source.
  • the first heat exchanger 11 and a heater 23 used as a heat source can be selectively connected to the battery temperature control module 2.
  • the battery temperature control module 2 includes a power component 24 and multiple battery heat exchange parts.
  • the power component 24 can be a water pump.
  • the multiple battery heat exchange parts can be selectively connected to the heat exchange medium circulation of the battery temperature control module 2.
  • multiple battery heat exchange parts correspond to different parts of the battery respectively, and the multiple battery heat exchange parts are independent of each other.
  • the flow rate and circulation time of the heat exchange medium in each battery heat exchange part can be controlled separately.
  • the temperature of each part of the battery can be adjusted to achieve a uniform temperature.
  • the first heat exchanger 11 and the heater 23 can be selectively connected to the battery temperature control module 2 as a cold source and a heat source respectively.
  • the heat exchange medium after heat dissipation by the first heat exchanger 11 (the temperature of the heat exchange medium is relatively low at this time) can selectively flow into at least one of the multiple battery heat exchange parts to absorb the heat of the battery to cool the battery; the heat exchange medium after heating by the heater 23 (the temperature of the heat exchange medium is relatively high at this time) can selectively flow into at least one of the multiple battery heat exchange parts to release heat to heat the battery.
  • the multiple battery heat exchange parts can cool or heat the battery simultaneously, individually, or alternately, so that the battery heating and cooling process can be flexibly adjusted and precisely controlled to reduce the temperature difference between the various parts of the battery.
  • each battery heat exchange part is shortened, the flow resistance is reduced, the pressure drop of the heat exchange medium at the inlet and outlet is significantly reduced, and the temperature drop is reduced, which further reduces the battery temperature difference and improves the overall performance of the battery.
  • the present disclosure includes an embodiment of dividing multiple flow channels on a battery heat exchanger into two independent flow channel areas, and also includes an embodiment of setting up two independent battery heat exchangers.
  • the battery temperature control module 2 includes a battery heat exchanger, and the multiple flow channels of the battery heat exchanger are divided into a first flow channel area 201 and a second flow channel area 202 that are independent of each other.
  • the first flow channel area 201 forms a first battery heat exchange part
  • the second flow channel area 202 forms a second battery heat exchange part.
  • the first flow channel area 201 and the second flow channel area 202 are respectively provided with corresponding heat exchange medium inlets and outlets.
  • the first flow channel area 201 has a first inlet 2011 and a first outlet 2012
  • the second flow channel area 202 has a second inlet 2021 and a second outlet 2022.
  • the inlet and the outlet are arranged on the same side of the liquid cooling plate, and the multiple flow channels connected to the inlet and the multiple flow channels connected to the outlet are connected to each other on the side opposite to the inlet and the outlet.
  • the heat exchange medium flowing in from the inlet flows through the flow channel, and flows out from the outlet after converging on the side opposite to the inlet and the outlet to form a ring flow path.
  • the flow rates of the first flow channel area 201 and the second flow channel area 202 can be different and can be controlled separately.
  • the battery temperature control module 2 includes a first battery heat exchanger 21 and a second battery heat exchanger 22, wherein the first battery heat exchanger 21 is formed as a first battery heat exchange unit, and the second battery heat exchanger 22 is formed as a second battery heat exchange unit.
  • the two battery heat exchangers are independent of each other and can be controlled separately, and this embodiment will be described in detail below.
  • the structures of the first battery heat exchanger 21 and the second battery heat exchanger 22 can be the same or different, and can be selected and designed as needed.
  • the first battery heat exchanger 21 and the second battery heat exchanger 22 are connected in parallel, and can be turned on separately (only one of them is used), or can be turned on at the same time (in parallel), or can be turned on alternately (the two battery heat exchangers are not turned on at the same time, and the time periods of turning on are inconsistent).
  • the first battery heat exchanger 21 and the second battery heat exchanger 22 can be selectively connected in parallel or in series. Compared with the embodiments shown in FIG. 2 and FIG.
  • the two battery heat exchangers when turned on at the same time, can be connected in parallel or in series, first flowing into the first battery heat exchanger 21 and then flowing through the second battery heat exchanger 22.
  • Appropriate selection can be made according to the needs of different environments and working conditions.
  • the battery thermal management system includes a first heater 231 and a second heater 232 (set on the branch line), and the first heater 231 and the second heater 232 can be selectively connected to the battery temperature control module 2 to heat the heat exchange medium flowing into the first battery heat exchanger 21 and the second battery heat exchanger 22, respectively.
  • a dual heater is used, and heaters are set for the first battery heat exchanger 21 and the second battery heat exchanger 22, respectively.
  • the number of heaters can be designed according to the number of battery heat exchangers.
  • the battery thermal management system includes a first heater 231 and a second heater 232 arranged on the branch, and also includes a third heater 233 arranged on the main line.
  • the third heater 233 can be connected in parallel or in series (in the embodiment of series connection, in the liquid cooling mode, the third heater 233 only circulates but does not heat).
  • the heating power of the heat exchange medium can be adjusted, and any one of the heaters can be used as a backup to ensure the heating effect on the heat exchange medium.
  • the heaters on the main line and the branch can be connected at the same time or separately.
  • valve arrangement and opening and closing control method are similar to those when they are connected separately.
  • the arrangement of pipelines and valves in Example 1 can be adopted, and the arrangement of pipelines and valves in Example 3 can also be adopted, both of which belong to the protection scope of the present disclosure.
  • the battery assembly may have a first temperature zone and a second temperature zone, the first battery heat exchange unit exchanges heat with the first temperature zone, and the second battery heat exchange unit exchanges heat with the second temperature zone.
  • the first battery heat exchange unit and the second battery heat exchange unit are used to achieve heat exchange in different areas of the battery assembly to improve the temperature uniformity of the battery assembly and improve the flexibility and convenience of battery temperature regulation.
  • the number of battery heat exchange units can be designed according to the number and position of temperature zones on the battery assembly, and is not limited to two.
  • Embodiment 1 (the first battery heat exchanger 21 and the second battery heat exchanger 22 are connected in parallel and share a heater 23)
  • the first battery heat exchanger 21 and the second battery heat exchanger 22 are connected in parallel, the parallel branch where the first battery heat exchanger 21 is located is provided with a first valve 211, and the parallel branch where the second battery heat exchanger 22 is located is provided with a second valve 221.
  • the first heat exchanger 11 and the heater 23 are arranged on the main road located upstream of the diversion port A (in terms of the flow direction of the heat exchange medium dissipated by the first heat exchanger 11 flowing into multiple battery heat exchange parts and then flowing back to the first heat exchanger 11 through the power part 24) and connected in parallel through the first three-way valve 261.
  • the first battery heat exchanger 21 is controlled to be opened, and by controlling the second valve 221, the second battery heat exchanger 22 is controlled to be opened.
  • the two can be controlled separately and independently of each other.
  • the first valve 211, the second valve 221, and the multiple valves to be introduced below can all be electric valves.
  • the heater 23 is connected in parallel with the first heat exchanger 11 through the first three-way valve 261, and the liquid cooling mode and the liquid heating mode can be switched by controlling the first three-way valve 261.
  • the first circulation loop is performed, which is a cooling loop to cool the battery, and when the heater 23 and the power part 24 are connected, the second circulation loop is performed to heat the battery.
  • Example 1 the liquid cooling mode of the battery thermal management system is one of the following working modes:
  • the first three-way valve 261 connects the first heat exchanger 11 and the power component 24 , the first valve 211 is opened, and the second valve 221 is closed.
  • the power component 24 drives the heat exchange medium to flow through the first heat exchanger 11 and the first battery heat exchanger 21 , and only the battery part corresponding to the first battery heat exchanger 21 is cooled;
  • the first three-way valve 261 connects the first heat exchanger 11 and the power component 24, the first valve 211 is closed, and the second valve 221 is opened.
  • the power component 24 drives the heat exchange medium to flow through the first heat exchanger 11 and the second battery heat exchanger 22, and only the battery part corresponding to the second battery heat exchanger 22 is cooled;
  • the first three-way valve 261 connects the first heat exchanger 11 and the power component 24, the first valve 211 is opened, the second valve 221 is opened, and the power component 24 drives the heat exchange medium to flow through the first heat exchanger 11 and then is divided into two paths, and flows through the first battery heat exchanger 21 and the second battery heat exchanger 22 at the same time, and the battery parts corresponding to the first battery heat exchanger 21 and the second battery heat exchanger 22 are cooled at the same time;
  • the first three-way valve 261 connects the first heat exchanger 11 and the power component 24, the first valve 211 opens in the first preset time period, and the second valve 221 opens in the second preset time period.
  • the power component 24 drives the heat exchange medium to flow through the first heat exchanger 11 and the first battery heat exchanger 21, and in the second preset time period, the power component 24 drives the heat exchange medium to flow through the first heat exchanger 11 and the second battery heat exchanger 22. That is, the first liquid cooling mode is executed in the first preset time period, and the second liquid cooling mode is executed in the second preset time period.
  • the first liquid cooling mode and the second liquid cooling mode are executed alternately, and the battery parts corresponding to the first battery heat exchanger 21 and the battery parts corresponding to the second battery heat exchanger 22 are cooled alternately;
  • the first battery heat exchanger 21 and the second battery heat exchanger 22 may be selected as needed to cool the battery individually, simultaneously or alternately.
  • the liquid thermal mode of the battery thermal management system is one of the following working modes:
  • the first three-way valve 261 connects the heater 23 and the power component 24, the heater 23 is heated, the first valve 211 is opened, the second valve 221 is closed, and the power component 24 drives the heat exchange medium to flow through the heater 23 and the first battery heat exchanger 21, and only the battery part corresponding to the first battery heat exchanger 21 is heated;
  • the first three-way valve 261 connects the heater 23 and the power component 24, the heater 23 is heated, the first valve 211 is closed, the second valve 221 is opened, and the power component 24 drives the heat exchange medium to flow through the heater 23 and the second battery heat exchanger 22, and only the battery part corresponding to the second battery heat exchanger 22 is heated;
  • the first three-way valve 261 connects the heater 23 and the power component 24, the heater 23 is heated, the first valve 211 is opened, the second valve 221 is opened, and the power component 24 drives the heat exchange medium to flow through the heater 23 and then is divided into two paths, and flows through the first battery heat exchanger 21 and the second battery heat exchanger 22 at the same time, and the battery parts corresponding to the first battery heat exchanger 21 and the second battery heat exchanger 22 are heated at the same time;
  • the first three-way valve 261 connects the heater 23 and the power part 24, the heater 23 is heated, the first valve 211 is opened within the first preset time period, and the second valve 221 is opened within the second preset time period.
  • the power part 24 drives the heat exchange medium to flow through the heater 23 and the first battery heat exchanger 21.
  • the power part 24 drives the heat exchange medium to flow through the heater 23 and the second battery heat exchanger 22. That is, the first liquid heating mode is executed within the first preset time period, and the second liquid heating mode is executed within the second preset time period.
  • the first liquid heating mode and the second liquid heating mode are executed alternately, and the battery parts corresponding to the first battery heat exchanger 21 and the battery parts corresponding to the second battery heat exchanger 22 are heated alternately.
  • the first battery heat exchanger 21 and the second battery heat exchanger 22 may be selected as required to heat the battery individually, simultaneously or alternately.
  • the battery thermal management system also has one of the following working modes:
  • the first three-way valve 261 connects the heater 23 and the power component 24, the heater 23 turns off heating, the first valve 211 opens, the second valve 221 opens, and the power component 24 drives the heat exchange medium to flow between the first battery heat exchanger 21 and the second battery heat exchanger 22; in this mode, the first heat exchanger 11 is not connected to the battery temperature control module 2, and the heater 23 is connected to the battery temperature control module 2 but does not heat, and the heat exchange medium circulates between multiple battery heat exchange parts to achieve a temperature equalization effect.
  • the opening and closing of the first valve 211 and the second valve 221 are controlled.
  • the corresponding valve is opened, the first three-way valve 261 connects the heater 23 and the power component 24, the heater 23 is turned off for heating, and the power component 24 drives the heat exchange medium to flow in the first battery heat exchanger 21 or the second battery heat exchanger 22.
  • the temperature on both sides rises, and the temperature in the middle area rises slowly.
  • the temperature of the heat exchange medium in the battery heat exchange part corresponding to the middle area (for example, the first battery heat exchanger 21) is lower than the preset threshold, the first valve 211 is closed, and the heat exchange medium in the first battery heat exchanger 21 does not flow. Only when the temperature of the heat exchange medium reaches the preset threshold, the heat exchange medium inside it circulates, which can reduce the power requirements of the power component 24, reduce energy consumption, and play an energy-saving role.
  • Embodiment 2 (the first battery heat exchanger 21 and the second battery heat exchanger 22 are connected in parallel, and heaters are provided for each)
  • Example 2 is to separately set heaters for two battery heat exchangers, as shown in FIG3, the battery thermal management system includes a first heater 231 and a second heater 232, the first heater 231 is connected in parallel with the pipeline provided with the first battery heat exchanger 21 through the second three-way valve 262, and the second heater 232 is connected in parallel with the pipeline provided with the second battery heat exchanger 22 through the third three-way valve 263.
  • the first heater 231 is arranged between the shunt inlet of the parallel branch where the first battery heat exchanger 21 is located and the first battery heat exchanger 21, when the upper and lower interfaces of the second three-way valve 262 are connected, the first heater 231 is short-circuited, which is a liquid cooling mode, and when the second three-way valve 262 is connected to the upper interface and the side interface, the first heater 231 is connected, which is a liquid heating mode.
  • the second heater 232 is arranged between the shunt inlet of the parallel branch where the second battery heat exchanger 22 is located and the second battery heat exchanger 22, and its connection and short-circuit method is similar to that of the first heater 231.
  • the liquid cooling mode of the battery thermal management system is one of the following working modes:
  • the first three-way valve 261 connects the first heat exchanger 11 and the power component 24 , the second three-way valve 262 short-circuits the first heater 231 , the third three-way valve 263 is closed, the first valve 211 is opened, the second valve 221 is closed, and the power component 24 drives the heat exchange medium to flow through the first heat exchanger 11 and the first battery heat exchanger 21 , and only the battery part corresponding to the first battery heat exchanger 21 is cooled;
  • the first three-way valve 261 connects the first heat exchanger 11 and the power component 24, the second three-way valve 262 is closed, the third three-way valve 263 short-circuits the second heater 232, the first valve 211 is closed, the second valve 221 is opened, and the power component 24 drives the heat exchange medium to flow through the first heat exchanger 11 and the second battery heat exchanger 22, and only the battery part corresponding to the second battery heat exchanger 22 is cooled;
  • the first three-way valve 261 connects the first heat exchanger 11 and the power component 24, the second three-way valve 262 short-circuits the first heater 231, and the third three-way valve 263 short-circuits the second heater 232.
  • the first valve 211 is opened, and the second valve 221 is opened.
  • the power component 24 drives the heat exchange medium to flow through the first heat exchanger 11 and then is divided into two paths, and flows through the first battery heat exchanger 21 and the second battery heat exchanger 22 at the same time, and the battery parts corresponding to the first battery heat exchanger 21 and the second battery heat exchanger 22 are cooled at the same time;
  • the first three-way valve 261 connects the first heat exchanger 11 and the power component 24, the second three-way valve 262 short-circuits the first heater 231, the third three-way valve 263 is closed, and the first valve 211 is opened within the first preset time period; the second three-way valve 262 is closed, the third three-way valve 263 short-circuits the second heater 232, and the second valve 221 is opened within the second preset time period.
  • the power component 24 drives the heat exchange medium to flow through the first heat exchanger 11 and the first battery heat exchanger 21.
  • the power component 24 drives the heat exchange medium to flow through the first heat exchanger 11 and the second battery heat exchanger 22.
  • the first liquid cooling mode is executed within the first preset time period
  • the second liquid cooling mode is executed within the second preset time period.
  • the first liquid cooling mode and the second liquid cooling mode are executed alternately, and the battery parts corresponding to the first battery heat exchanger 21 and the battery parts corresponding to the second battery heat exchanger 22 are cooled alternately.
  • the first battery heat exchanger 21 and the second battery heat exchanger 22 may be selected as needed to cool the battery individually, simultaneously or alternately.
  • the liquid thermal mode of the battery thermal management system is one of the following working modes:
  • the first three-way valve 261 points to the shunt inlet of the dual battery heat exchanger, short-circuiting the first heat exchanger 11, the second three-way valve 262 points to the first heater 231, connecting the first heater 231 and the power component 24, the third three-way valve 263 is closed, the first heater 231 is heated, the first valve 211 is opened, the second valve 221 is closed, and the power component 24 drives the heat exchange medium to flow through the first heater 231 and the first battery heat exchanger 21, so as to heat only the battery part corresponding to the first battery heat exchanger 21;
  • the first three-way valve 261 points to the shunt inlet of the dual battery heat exchanger, short-circuiting the first heat exchanger 11, and the third three-way valve 263 points to the second heater 232, connecting the second heater 232 and the power component 24, the second three-way valve 262 is closed, the second heater 232 is heated, the first valve 211 is closed, the second valve 221 is opened, and the power component 24 drives the heat exchange medium to flow through the second heater 232 and the second battery heat exchanger 22, and only the battery part corresponding to the second battery heat exchanger 22 is heated;
  • the first three-way valve 261 points to the shunt inlet of the dual battery heat exchanger, short-circuiting the first heat exchanger 11, the second three-way valve 262 points to the first heater 231, and the third three-way valve 263 points to the second heater 232.
  • the first valve 211 is opened, the second valve 221 is opened, and the power component 24 drives the heat exchange medium to flow through the first heater 231 and the second heater 232 respectively, and at the same time flow through the first battery heat exchanger 21 and the second battery heat exchanger 22, and the battery parts corresponding to the first battery heat exchanger 21 and the second battery heat exchanger 22 are heated simultaneously;
  • the first three-way valve 261 points to the shunt inlet of the dual battery heat exchanger, short-circuiting the first heat exchanger 11, the second three-way valve 262 points to the first heater 231, the third three-way valve 263 points to the second heater 232, the second three-way valve 262 and the first valve 211 are opened synchronously in the first preset time period, the third three-way valve 263 and the second valve 221 are opened synchronously in the second preset time period, in the first preset time period, the power component 24 drives the heat exchange medium to flow through the first heater 231 and the first battery heat exchanger 21, and in the second preset time period, the power component 24 drives the heat exchange medium to flow through the second heater 232 and the second battery heat exchanger 22.
  • the first liquid heating mode is executed in the first preset time period
  • the second liquid heating mode is executed in the second preset time period
  • the first liquid heating mode and the second liquid heating mode are executed alternately
  • the battery part corresponding to the first battery heat exchanger 21 and the battery part corresponding to the second battery heat exchanger 22 are heated alternately.
  • the first battery heat exchanger 21 and the first heater 231 , the second battery heat exchanger 22 and the second heater 232 may be selected to heat the battery individually, simultaneously or alternately as required.
  • the battery thermal management system also has one of the following working modes:
  • the first three-way valve 261 short-circuits the first heat exchanger 11
  • the second three-way valve 262 short-circuits the first heater 231
  • the third three-way valve 263 short-circuits the second heater 232
  • the first valve 211 is opened
  • the second valve 221 is opened
  • the power part 24 drives the heat exchange medium to flow between the first battery heat exchanger 21 and the second battery heat exchanger 22; in this mode, the first heat exchanger 11 and the heater 23 are not connected to the battery temperature control module 2, and the temperature equalization is achieved by circulating the heat exchange medium between multiple battery heat exchange parts.
  • the opening and closing of the first valve 211 and the second valve 221 are controlled.
  • the corresponding valves are opened, the first three-way valve 261 short-circuits the first heat exchanger 11, the second three-way valve 262 short-circuits the first heater 231, and the third three-way valve 263 short-circuits the second heater 232, and the power component 24 drives the heat exchange medium to flow in the first battery heat exchanger 21 or the second battery heat exchanger 22.
  • the heat exchange medium inside it circulates, which can reduce the power requirements of the power component 24, reduce energy consumption, and play an energy-saving role.
  • Embodiment 3 (the first battery heat exchanger 21 and the second battery heat exchanger 22 share the same heater 23 and can be selectively connected in parallel or in series)
  • the battery temperature control module 2 includes a first battery heat exchanger 21 and a second battery heat exchanger 22 connected in parallel, a first valve 211 is provided on the first parallel branch where the first battery heat exchanger 21 is located, and a second valve 221 is provided on the second parallel branch where the second battery heat exchanger 22 is located, the first heat exchanger 11 and the heater 23 are arranged on the main road located upstream of the diversion port and are connected in parallel through a first three-way valve 261, and the battery thermal management system also includes a first three-way valve 261 connected in parallel between the first battery heat exchanger 21 and the second battery heat exchanger 22.
  • a third valve 252 is provided on the third parallel branch 25
  • a fourth valve 251 is provided on the pipeline connecting the first parallel branch 41 and the third parallel branch 25
  • a fifth valve 253 is provided on the pipeline connecting the second parallel branch 42 and the third parallel branch 25
  • a sixth valve 254 is provided on the first parallel loop 51 connecting the first valve 211 and the power piece 24
  • a seventh valve 255 is provided on the second parallel loop 52 connecting the second valve 221 and the power piece 24, and the first parallel loop 51 and the second parallel loop 52 are arranged in parallel.
  • the number and arrangement of the above valves are not limited to those shown in the figure, and valves can be increased or decreased as needed, and in some working modes, some valves can be used as spare valves.
  • the liquid cooling mode of the battery thermal management system is one of the following working modes:
  • the first three-way valve 261 connects the first heat exchanger 11 and the power component 24 , the first valve 211 and the sixth valve 254 are opened, and the other valves are closed.
  • the power component 24 drives the heat exchange medium to flow through the first heat exchanger 11 and the first battery heat exchanger 21 , and only the battery part corresponding to the first battery heat exchanger 21 is cooled;
  • the first three-way valve 261 connects the first heat exchanger 11 and the power component 24, the fourth valve 251, the second valve 221 and the seventh valve 255 are opened, and the other valves are closed.
  • the power component 24 drives the heat exchange medium to flow through the first heat exchanger 11 and the second battery heat exchanger 22, and only the battery part corresponding to the second battery heat exchanger 22 is cooled;
  • the first three-way valve 261 connects the first heat exchanger 11 and the power component 24, the first valve 211, the sixth valve 254, the fourth valve 251, the second valve 221 and the seventh valve 255 are opened, and when the other valves are closed, the power component 24 drives the heat exchange medium to flow through the first heat exchanger 11 and then is divided into two paths, and flows through the first battery heat exchanger 21 and the second battery heat exchanger 22 at the same time, and the battery parts corresponding to the first battery heat exchanger 21 and the second battery heat exchanger 22 are cooled at the same time;
  • the first three-way valve 261 connects the first heat exchanger 11 and the power component 24, the first valve 211, the third valve 252, the second valve 221 and the seventh valve 255 are opened, and the other valves are closed.
  • the power component drives the heat exchange medium to flow through the first heat exchanger 11, the first battery heat exchanger 21 and the second battery heat exchanger 22 in sequence, and the battery parts corresponding to the first battery heat exchanger 21 and the second battery heat exchanger 22 are cooled in sequence;
  • the first three-way valve 261 connects the first heat exchanger 11 and the power component 24, the first valve 211 and the sixth valve 254 are opened synchronously within a first preset time period, and the fourth valve 251, the second valve 221 and the seventh valve 255 are opened synchronously within a second preset time period.
  • the power component 24 drives the heat exchange medium to flow through the first heat exchanger 11 and the first battery heat exchanger 21, and within the second preset time period, the power component 24 drives the heat exchange medium to flow through the first heat exchanger 11 and the second battery heat exchanger 22, that is, the first liquid cooling mode is executed within the first preset time period, and the second liquid cooling mode is executed within the second preset time period.
  • the first liquid cooling mode and the second liquid cooling mode are executed alternately, and the battery parts corresponding to the first battery heat exchanger 21 and the battery parts corresponding to the second battery heat exchanger 22 are cooled alternately.
  • the first battery heat exchanger 21 and the second battery heat exchanger 22 may be selected as needed to cool the battery individually, simultaneously or alternately.
  • the liquid thermal mode of the battery thermal management system is one of the following working modes:
  • the first three-way valve 261 connects the heater 23 and the power component 24, the heater 23 is heated, the first valve 211 and the sixth valve 254 are opened, and the other valves are closed.
  • the power component 24 drives the heat exchange medium to flow through the heater 23 and the first battery heat exchanger 21, and only the battery part corresponding to the first battery heat exchanger 21 is heated;
  • the first three-way valve 261 connects the heater 23 and the power component 24, the heater 23 is heated, the fourth valve 251, the second valve 221 and the seventh valve 255 are opened, and the other valves are closed.
  • the power component 24 drives the heat exchange medium to flow through the heater 23 and the second battery heat exchanger 22, and only the battery part corresponding to the second battery heat exchanger 22 is heated;
  • the first three-way valve 261 connects the heater 23 and the power component 24, the heater 23 is heated, the first valve 211, the sixth valve 254, the fourth valve 251, the second valve 221 and the seventh valve 255 are opened, and the other valves are closed.
  • the power component 24 drives the heat exchange medium to flow through the heater 23 and then is divided into two paths, and flows through the first battery heat exchanger 21 and the second battery heat exchanger 22 at the same time, and the battery parts corresponding to the first battery heat exchanger 21 and the second battery heat exchanger 22 are heated at the same time;
  • the first three-way valve 261 connects the heater 23 and the power component 24, the heater 23 is heated, the first valve 211, the third valve 252, the second valve 221 and the seventh valve 255 are opened, and the other valves are closed.
  • the power component drives the heat exchange medium to flow through the heater 23, the first battery heat exchanger 21 and the second battery heat exchanger 22 in sequence, and the battery parts corresponding to the first battery heat exchanger 21 and the second battery heat exchanger 22 are heated in sequence;
  • the first three-way valve 261 connects the heater 23 and the power part 24, the first valve 211 and the sixth valve 254 are opened synchronously in the first preset time period, the fourth valve 251, the second valve 221 and the seventh valve 255 are opened synchronously in the second preset time period, in the first preset time period, the power part 24 drives the heat exchange medium to flow through the heater 23 and the first battery heat exchanger 21, and in the second preset time period, the power part 24 drives the heat exchange medium to flow through the heater 23 and the second battery heat exchanger 22.
  • the first liquid heating mode is executed in the first preset time period
  • the second liquid heating mode is executed in the second preset time period
  • the first liquid heating mode and the second liquid heating mode are executed alternately, and the battery part corresponding to the first battery heat exchanger 21 and the battery part corresponding to the second battery heat exchanger 22 are heated alternately;
  • the first battery heat exchanger 21 and the second battery heat exchanger 22 may be selected as required to heat the battery individually, simultaneously or alternately.
  • the battery thermal management system also has at least one of the following working modes:
  • the first three-way valve 261 connects the heater 23 and the power component 24 , the heater 23 turns off heating, the first valve 211 , the sixth valve 254 , the second valve 221 , the seventh valve 255 and the fourth valve 251 are opened, and the remaining valves are closed, and the power component 24 drives the heat exchange medium to flow through the first battery heat exchanger 21 and the second battery heat exchanger 22 at the same time.
  • the first three-way valve 261 connects the heater 23 and the power component 24, the heater 23 turns off heating, the first valve 211, the third valve 252, the second valve 221 and the seventh valve 255 are opened, and the remaining valves are closed, and the power component 24 drives the heat exchange medium to flow through the first battery heat exchanger 21 and the second battery heat exchanger 22 in sequence.
  • the opening and closing of the first valve 211 and the sixth valve 254 are controlled, or the opening and closing of the second valve 221, the fourth valve 251 and the seventh valve 255 are controlled.
  • the corresponding valve is opened, the first three-way valve 261 connects the heater 23 and the power part 24, the heater 23 turns off heating, and the power part 24 drives the heat exchange medium to flow in the first battery heat exchanger 21 or the second battery heat exchanger 22.
  • the beneficial effects of the temperature-averaging mode and the energy-saving mode in this embodiment are similar to those of Embodiment 1 and Embodiment 2, and are not repeated here.
  • Embodiment 4 (the first battery heat exchanger 21 and the second battery heat exchanger 22 are provided with heaters separately, which can be selectively connected in parallel or in series)
  • the arrangement of the two heaters is similar to that of Embodiment 2, and the arrangement of the two battery heat exchangers that can be selectively connected in parallel or in series is similar to that of Embodiment 3, which will not be repeated.
  • the battery temperature control module 2 includes a first battery heat exchanger 21 and a second battery heat exchanger 22 connected in parallel, a first valve 211 is provided on the first parallel branch where the first battery heat exchanger 21 is located, and a second valve 221 is provided on the second parallel branch where the second battery heat exchanger 22 is located, the first heat exchanger 11 is arranged on the main road upstream of the diversion port and can be selectively connected through the first three-way valve 261, the battery thermal management system includes a first heater 231 and a second heater 232, the first heater 231 is arranged on the first parallel branch through the second three-way valve 262, and the second heater 232 is connected through the third three-way valve 263 Arranged on the second parallel branch, the battery thermal management system also includes a third parallel branch 25 connected in parallel between the first battery heat exchanger 21 and the second battery heat exchanger 22, a third valve 252 is provided on the third parallel branch 25, a fourth valve 251 is provided on the pipeline connecting the first parallel branch and the third parallel branch 25,
  • the liquid cooling mode of the battery thermal management system is one of the following working modes:
  • the first three-way valve 261 connects the first heat exchanger 11 and the power component 24, the second three-way valve 262 short-circuits the first heater 231, the third three-way valve 263 is closed, the first valve 211 and the sixth valve 254 are opened, and the other valves are closed.
  • the power component 24 drives the heat exchange medium to flow through the first heat exchanger 11 and the first battery heat exchanger 21, and only the battery part corresponding to the first battery heat exchanger 21 is cooled;
  • the first three-way valve 261 connects the first heat exchanger 11 and the power component 24, the second three-way valve 262 is closed, the third three-way valve 263 short-circuits the second heater 232, the second valve 221 and the seventh valve 255 are opened, and the other valves are closed.
  • the power component 24 drives the heat exchange medium to flow through the first heat exchanger 11 and the second battery heat exchanger 22, and only the battery part corresponding to the second battery heat exchanger 22 is cooled;
  • the first three-way valve 261 connects the first heat exchanger 11 and the power component 24, the second three-way valve 262 short-circuits the first heater 231, and the third three-way valve 263 short-circuits the second heater 232.
  • the first valve 211, the sixth valve 254, the fourth valve 251, the second valve 221 and the seventh valve 255 are opened, and when the other valves are closed, the power component 24 drives the heat exchange medium to flow through the first heat exchanger 11 and then is divided into two paths, and flows through the first battery heat exchanger 21 and the second battery heat exchanger 22 at the same time, and the battery parts corresponding to the first battery heat exchanger 21 and the second battery heat exchanger 22 are cooled simultaneously;
  • the first three-way valve 261 connects the first heat exchanger 11 and the power component 24, the second three-way valve 262 short-circuits the first heater 231, the third three-way valve 263 short-circuits the second heater 232, the first valve 211, the third valve 252, the second valve 221 and the seventh valve 255 are opened, and the other valves are closed.
  • the power component drives the heat exchange medium to flow through the first heat exchanger 11, the first battery heat exchanger 21 and the second battery heat exchanger 22 in sequence, and the battery parts corresponding to the first battery heat exchanger 21 and the second battery heat exchanger 22 are cooled in sequence;
  • the first three-way valve 261 connects the first heat exchanger 11 and the power component 24, the second three-way valve 262 short-circuits the first heater 231, the first valve 211 and the sixth valve 254 are opened in the first preset time period, the third three-way valve 263 short-circuits the second heater 232, the second valve 221 and the seventh valve 255 are opened in the second preset time period, in the first preset time period, the power component 24 drives the heat exchange medium to flow through the first heat exchanger 11 and the first battery heat exchanger 21, and in the second preset time period, the power component 24 drives the heat exchange medium to flow through the first heat exchanger 11 and the second battery heat exchanger 22.
  • the first liquid cooling mode is executed in the first preset time period, and the second liquid cooling mode is executed in the second preset time period.
  • the first liquid cooling mode and the second liquid cooling mode are executed alternately, and the battery part corresponding to the first battery heat exchanger 21 and the battery part corresponding to the second battery heat exchanger 22 are cooled alternately.
  • the first battery heat exchanger 21 and the second battery heat exchanger 22 may be selected as needed to cool the battery individually, simultaneously or alternately.
  • the liquid thermal mode of the battery thermal management system is one of the following working modes:
  • the first three-way valve 261 points to the shunt inlet of the dual battery heat exchanger, short-circuiting the first heat exchanger 11, and the second three-way valve 262 points to the first heater 231, connecting the first heater 231 and the power component 24, the first valve 211 and the sixth valve 254 are opened, and the other valves are closed.
  • the power component 24 drives the heat exchange medium to flow through the first heater 231 and the first battery heat exchanger 21, so as to heat only the battery part corresponding to the first battery heat exchanger 21;
  • the first three-way valve 261 points to the diversion inlet of the dual battery heat exchanger
  • the third three-way valve 263 points to the second heater 232, connecting the second heater 232 and the power component 24, the fourth valve 251, the second valve 221 and the seventh valve 255 are opened, and the other valves are closed.
  • the power component 24 drives the heat exchange medium to flow through the second heater 232 and the second battery heat exchanger 22, and only the battery part corresponding to the second battery heat exchanger 22 is heated;
  • the first three-way valve 261 points to the diversion inlet of the dual battery heat exchanger
  • the second three-way valve 262 points to the first heater 231
  • the third three-way valve 263 points to the second heater 232.
  • the first valve 211, the sixth valve 254, the fourth valve 251, the second valve 221 and the seventh valve 255 are opened, and the other valves are closed.
  • the power component 24 drives the heat exchange medium to flow through the first heater 231 and the second heater 232 respectively, and at the same time flow through the first battery heat exchanger 21 and the second battery heat exchanger 22, and the battery parts corresponding to the first battery heat exchanger 21 and the second battery heat exchanger 22 are heated simultaneously;
  • the first three-way valve 261 points to the shunt inlet of the dual battery heat exchanger, short-circuiting the first heat exchanger 11, the second three-way valve 262 points to the first heater 231, the third three-way valve 263 points to the second heater 232, the first valve 211, the third valve 252, the second valve 221 and the seventh valve 255 are opened, and the other valves are closed.
  • the power component drives the heat exchange medium to flow through the heater 23, the first battery heat exchanger 21 and the second battery heat exchanger 22 in sequence, and the battery parts corresponding to the first battery heat exchanger 21 and the second battery heat exchanger 22 are heated in sequence;
  • the first three-way valve 261 points to the diversion inlet of the dual battery heat exchanger
  • the second three-way valve 262 points to the first heater 231
  • the first valve 211 and the sixth valve 254 are opened and executed synchronously within the first preset time period
  • the third three-way valve 263 points to the second heater 232
  • the second valve 221 and the seventh valve 255 are opened and executed synchronously within the second preset time period
  • the power component 24 drives the heat exchange medium to flow through the first heater 231 and the first battery heat exchanger 21, and within the second preset time period
  • the power component 24 drives the heat exchange medium to flow through the second heater 232 and the second battery heat exchanger 22, and the battery parts corresponding to the first battery heat exchanger 21 and the battery parts corresponding to the second battery heat exchanger 22 are cooled alternately.
  • the first battery heat exchanger 21 and the first heater 231 , the second battery heat exchanger 22 and the second heater 232 may be selected to heat the battery individually, simultaneously or alternately as required.
  • the battery thermal management system also has at least one of the following working modes:
  • the first three-way valve 261 short-circuits the first heat exchanger 11
  • the second three-way valve 262 short-circuits the first heater 231
  • the third three-way valve 263 short-circuits the second heater 232
  • the first valve 211, the sixth valve 254, the second valve 221, the seventh valve 255 and the fourth valve 251 are opened, and the remaining valves are closed, and the power part 24 drives the heat exchange medium to flow through the first battery heat exchanger 21 and the second battery heat exchanger 22 at the same time;
  • the first three-way valve 261 short-circuits the first heat exchanger 11
  • the second three-way valve 262 short-circuits the first heater 231
  • the third three-way valve 263 short-circuits the second heater 232
  • the first valve 211, the third valve 252, the second valve 221 and the seventh valve 255 are opened, and the remaining valves are closed, and the power part 24 drives the heat exchange medium to flow through the first battery heat exchanger 21 and the second battery heat exchanger 22 in sequence;
  • the first three-way valve 261 short-circuits the first heat exchanger 11
  • the second three-way valve 262 short-circuits the first heater 231
  • the third three-way valve 263 short-circuits the second heater 232, controlling the opening and closing of the first valve 211 and the sixth valve 254, or controlling the opening and closing of the second valve 221, the fourth valve 251 and the seventh valve 255.
  • the corresponding valve is opened, and the power component 24 drives the heat exchange medium to flow in the first battery heat exchanger 21 or the second battery heat exchanger 22.
  • the battery thermal management system further includes a temperature detection element 3 disposed upstream or downstream of the plurality of battery heat exchange parts, so as to control whether the plurality of battery heat exchange parts are working according to the information obtained by the temperature detection element 3.
  • the temperature detection element 3 may be a temperature sensor, which can monitor the temperature of the heat exchange medium at the inlet or outlet of the battery heat exchanger, thereby adjusting the heating power of the heater, the opening or closing or the opening degree of each valve, etc., adjusting the flow rate and circulation time of the heat exchange medium, and collaboratively realizing the control of the first battery heat exchanger 21 and the second battery heat exchanger 22 to meet the different heat exchange requirements of the batteries.
  • the first heat exchanger 11 and the second heat exchanger 12 are connected in parallel, the pipeline provided with the first heat exchanger 11 is provided with a first electronic expansion valve 16, and the pipeline provided with the second heat exchanger 12 is provided with a second electronic expansion valve 17.
  • the first electronic expansion valve 16 can be in a closed state, and the air conditioning system and the battery temperature control module 2 do not interfere with each other.
  • the first electronic expansion valve 16 can also be in an open state, and the first heat exchanger 11 is connected to the battery temperature control module 2 (it can be directly connected in series or in parallel with the first three-way valve 261).
  • Part of the heat of the battery temperature control module 2 is used for the heat exchange module 1 to achieve energy recovery and effective utilization, which is particularly suitable for low ambient temperature, such as when the air conditioning system cannot meet the heating requirements of the passenger compartment.
  • an electric device including the battery thermal management system described above.
  • the electric device has all the beneficial effects of the above-mentioned battery thermal management system, which will not be described in detail here.
  • the electric device can be a vehicle, an energy storage cabinet, an unmanned aerial vehicle, etc., which is not limited by the present disclosure.

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Abstract

一种电池热管理系统和用电设备,电池热管理系统包括热交换模块、电池温控模块和用作热源的加热器,电池温控模块包括多个电池换热部,热交换模块中具有用作冷源的第一换热器,第一换热器和加热器可选择性地接入电池温控模块,并且多个电池换热部分别可选择性地接入电池温控模块的换热介质循环中。

Description

电池热管理系统和用电设备
相关申请的交叉引用
本公开要求在2023年11月28日提交中国专利局、申请号为202311615729.5、名称为“电池热管理系统和用电设备”的中国专利申请的优先权,其全部内容通过引用结合在本公开中。
技术领域
本公开涉及电池热管理技术领域,具体地,涉及一种电池热管理系统和用电设备。
背景技术
在新能源汽车电池液冷和液热的热管理系统中,电池的温度取决于电池系统换热器,电池系统换热器内的换热介质可以吸收加热器提供的热量,对电池进行加热,或通过空调系统的板式换热器向冷媒释放热量,对电池进行冷却,以使电池保持在一定温度。相关技术中提供的电池系统换热器结构较为简单,仅能实现对电池整体的冷却或加热,但是,实际上电池各部分所需的冷热负荷并不相同,导致电池各部分温差较大,影响电池的性能。
发明内容
本公开的目的是提供一种电池热管理系统和用电设备,以解决相关技术中电池各部分温差较大的技术问题。
为了实现上述目的,本公开提供一种电池热管理系统,包括热交换模块、电池温控模块和用作热源的加热器,所述电池温控模块包括多个电池换热部,所述热交换模块中具有用作冷源的第一换热器,所述第一换热器和所述加热器可选择性地接入所述电池温控模块,并且所述多个电池换热部分别可选择性地接入所述电池温控模块的换热介质循环中。
根据本公开的一实施例,所述多个电池换热部包括第一电池换热部和第二电池换热部,所述电池温控模块包括电池换热器,所述电池换热器的多条流道分为相互独立的第一流道区和第二流道区,所述第一流道区形成为第一电池换热部,所述第二流道区形成为第二电池换热部。
根据本公开的一实施例,所述多个电池换热部包括第一电池换热部和第二电池换热部,所述电池温控模块包括第一电池换热器和第二电池换热器,所述第一电池换热器形成为第一电池换热部,所述第二电池换热器形成为第二电池换热部。
根据本公开的一实施例,所述多个电池换热部包括第一电池换热部和第二电池换热部,所述第一电池换热部和所述第二电池换热部并联布置。
根据本公开的一实施例,所述多个电池换热部包括第一电池换热部和第二电池换热部,所述第一电池换热部和所述第二电池换热部选择性地并联或串联。
根据本公开的一实施例,所述加热器和所述第一换热器设置在位于分流口上游的主路上,所述第一电池换热部和所述第二电池换热部共用所述加热器和所述第一换热器。
根据本公开的一实施例,所述电池热管理系统包括第一加热器和第二加热器,所述第一加热器和所述第二加热器分别设置在对应的并联支路上,以分别对流入所述第一电池换热部和所述第二电池换热部的换热介质进行加热。
根据本公开的一实施例,所述第一电池换热部和所述第二电池换热部所在的并联支路上分别设有所述第一换热器,所述第一换热器并联连接在对应的并联支路上。
根据本公开的一实施例,所述电池热管理系统还包括第三加热器,所述第三加热器设置在位于分流口上游的主路上,所述第一加热器、所述第二加热器、所述第三加热器分别可选择性地接入所述电池温控模块中。
根据本公开的一实施例,所述多个电池换热部包括第一电池换热部和第二电池换热部,第一电池换热部和所述第二电池换热部分别对应设置在电池的不同部位。
根据本公开的一实施例,所述电池温控模块包括用于驱动换热介质循环流动的动力件、并联连接的第一电池换热器和第二电池换热器,所述第一电池换热器所在的第一并联支路上设有第一阀门,所述第二电池换热器所在的第二并联支路上设有第二阀门,所述第一换热器和所述加热器设置在位于分流口上游的主路上并通过第一三通阀并联连接。
根据本公开的一实施例,所述电池热管理系统具有以下模式中的至少一种:
第一液冷模式,所述第一三通阀连通所述第一换热器和所述动力件,所述第一阀门打开,所述第二阀门关闭,所述动力件驱动换热介质流经所述第一换热器和所述第一电池换热器;
第二液冷模式,所述第一三通阀连通所述第一换热器和所述动力件,所述第一阀门关闭,所述第二阀门打开,所述动力件驱动换热介质流经所述第一换热器和所述第二电池换热器;
第三液冷模式,所述第一三通阀连通所述第一换热器和所述动力件,所述第一阀门打开,所述第二阀门打开,所述动力件驱动换热介质流经所述第一换热器后分为两路,同时流经所述第一电池换热器和所述第二电池换热器;
第四液冷模式,所述第一三通阀连通所述第一换热器和所述动力件,在第一预设时间段内,所述第一阀门打开,所述第二阀门关闭,所述动力件驱动换热介质流经所述第一换热器和所述第一电池换热器;在第二预设时间段内,所述第一阀门关闭,所述第二阀门打开,所述动力件驱动换热介质流经所述第一换热器和所述第二电池换热器;
第一液热模式,所述第一三通阀连通所述加热器和所述动力件,所述加热器加热,所述第一阀门打开,所述第二阀门关闭,所述动力件驱动换热介质流经所述加热器和所述第一电池换热器;
第二液热模式,所述第一三通阀连通所述加热器和所述动力件,所述加热器加热,所述第一阀门关闭,所述第二阀门打开,所述动力件驱动换热介质流经所述加热器和所述第二电池换热器;
第三液热模式,所述第一三通阀连通所述加热器和所述动力件,所述加热器加热,所述第一阀门打开,所述第二阀门打开,所述动力件驱动换热介质流经所述加热器后分为两路,同时流经所述第一电池换热器和所述第二电池换热器;
第四液热模式,所述第一三通阀连通所述加热器和所述动力件,所述加热器加热,在第一预设时间段内,所述第一阀门打开,所述第二阀门关闭,所述动力件驱动换热介质流经所述加热器和所述第一电池换热器;在第二预设时间段内,所述第一阀门关闭,所述第二阀门打开,所述动力件驱动换热介质流经所述加热器和所述第二电池换热器;
均温模式,所述第一三通阀连通所述加热器和所述动力件,所述加热器关闭加热,所述第一阀门打开,所述第二阀门打开,所述动力件驱动换热介质在所述第一电池换热器和所述第二电池换热器之间流动;以及
节能模式,所述第一三通阀连通所述加热器和所述动力件,所述加热器关闭加热,所述动力件驱动换热介质在所述第一电池换热器或所述第二电池换热器中流动。
根据本公开的一实施例,所述电池温控模块包括用于驱动换热介质循环流动的动力件、并联连接的第一电池换热器和第二电池换热器,所述第一电池换热器所在的第一并联支路上设有第一阀门,所述第二电池换热器所在的第二并联支路上设有第二阀门,所述第一换热器设置在位于分流口上游的主路上并通过第一三通阀可选择性接入,所述电池热管理系统包括第一加热器和第二加热器,所述第一加热器通过第二三通阀设置在所述第一并联支路上,所述第二加热器通过第三三通阀设置在所述第二并联支路上。
根据本公开的一实施例,所述电池热管理系统具有以下模式中的至少一种:
第一液冷模式,所述第一三通阀连通所述第一换热器和所述动力件,所述第二三通阀短接所述第一加热器,所述第三三通阀关闭,所述第一阀门打开,所述第二阀门关闭,所述动力件驱动换热介质流经所述第一换热器和所述第一电池换热器;
第二液冷模式,所述第一三通阀连通所述第一换热器和所述动力件,所述第二三通阀关闭,所述第三三通阀短接所述第二加热器,所述第一阀门关闭,所述第二阀门打开,所述动力件驱动换热介质流经所述第一换热器和所述第二电池换热器;
第三液冷模式,所述第一三通阀连通所述第一换热器和所述动力件,所述第二三通阀短接所述第一加热器,所述第三三通阀短接所述第二加热器,所述第一阀门打开,所述第二阀门打开,所述动力件驱动换热介质流经所述第一换热器后分为两路,同时流经所述第一电池换热器和所述第二电池换热器;
第四液冷模式,所述第一三通阀连通所述第一换热器和所述动力件,在第一预设时间段内,所述第二三通阀短接所述第一加热器,所述第三三通阀关闭,所述第一阀门打开,所述第二阀门关闭,所述动力件驱动换热介质流经所述第一换热器和所述第一电池换热器;在第二预设时间段内,所述第二三通阀关闭,所述第三三通阀短接所述第二加热器,所述第一阀门关闭,所述第二阀门打开,所述动力件驱动换热介质流经所述第一换热器和所述第二电池换热器;
第一液热模式,所述第一三通阀短接所述第一换热器,所述第二三通阀指向所述第一加热器,所述第三三通阀关闭,所述第一加热器加热,所述第一阀门打开,所述第二阀门关闭,所述动力件驱动换热介质流经所述第一加热器和所述第一电池换热器;
第二液热模式,所述第一三通阀短接所述第一换热器,所述第二三通阀关闭,所述第三三通阀指向所述第二加热器,所述第二加热器加热,所述第一阀门关闭,所述第二阀门打开,所述动力件驱动换热介质流经所述第二加热器和所述第二电池换热器;
第三液热模式,所述第一三通阀短接所述第一换热器,所述第二三通阀指向所述第一加热器,所述第三三通阀指向所述第二加热器,所述第一加热器和所述第二加热器加热,所述第一阀门打开,所述第二阀门打开,所述动力件驱动换热介质流经所述加热器后分为两路,同时流经所述第一电池换热器和所述第二电池换热器;
第四液热模式,所述第一三通阀短接所述第一换热器,在第一预设时间段内,所述第二三通阀指向所述第一加热器,所述第三三通阀关闭,所述第一加热器加热,所述第一阀门打开,所述第二阀门关闭,所述动力件驱动换热介质流经所述第一加热器和所述第一电池换热器;在第二预设时间段内,所述第一三通阀短接所述第一换热器,所述第二三通阀关闭,所述第三三通阀指向所述第二加热器,所述第二加热器加热,所述第一阀门关闭,所述第二阀门打开,所述动力件驱动换热介质流经所述第二加热器和所述第二电池换热器;
均温模式,所述第一三通阀短接所述第一换热器,所述第二三通阀短接所述第一加热器,所述第三三通阀短接所述第二加热器,所述第一阀门打开,所述第二阀门打开,所述动力件驱动换热介质在所述第一电池换热器和所述第二电池换热器之间流动;以及
节能模式,所述第一三通阀短接所述第一换热器,所述第二三通阀短接所述第一加热器,所述第三三通阀短接所述第二加热器,所述动力件驱动换热介质在所述第一电池换热器或所述第二电池换热器中流动。
根据本公开的一实施例,所述电池温控模块包括用于驱动换热介质循环流动的动力件、并联连接的第一电池换热器和第二电池换热器,所述第一电池换热器所在的第一并联支路上设有第一阀门,所述第二电池换热器所在的第二并联支路上设有第二阀门,所述动力件和电池换热器之间设有所述第一换热器和/或所述加热器。
根据本公开的一实施例,所述电池热管理系统包括连接所述第一阀门和所述动力件之间的第六阀门,
其中,所述电池热管理系统具有第一模式,所述第一阀门和第六阀门打开,所述动力件驱动换热介质流经所述第一换热器和/或所述加热器后流入所述第一电池换热器。
根据本公开的一实施例,所述电池热管理系统包括连接所述第二阀门和所述动力件的第二并联回路,所述第二并联回路上设有第七阀门,所述第一并联支路和所述第二电池换热器之间设有第四阀门;
其中,所述电池热管理系统具有第二模式,所述第四阀门、所述第二阀门和第七阀门打开,所述动力件驱动换热介质流经所述第一换热器和/或所述加热器后流入所述第二电池换热器。
根据本公开的一实施例,所述电池热管理系统包括连接所述第一阀门和所述动力件之间的第六阀门,连接所述第二阀门和所述动力件的第二并联回路上设有第七阀门,所述第一并联支路和所述第二电池换热器之间设有第四阀门;
其中,所述电池热管理系统具有第三模式,所述第一阀门、第六阀门、所述第二阀门、第七阀门和第四阀门打开,所述动力件驱动换热介质流经所述第一换热器和/或所述加热器后分为两路,同时流经所述第一电池换热器和所述第二电池换热器。
根据本公开的一实施例,所述电池热管理系统还包括并联连接在所述第一电池换热器和所述第二电池换热器之间的第三并联支路,所述第三并联支路上设有第三阀门,连接所述第二阀门和所述动力件的第二并联回路上设有第七阀门,
其中,所述电池热管理系统具有第四模式,所述第一阀门、所述第三阀门、所述第二阀门和第五阀门打开,所述动力件驱动换热介质依次流经所述第一换热器和/或所述加热器、所述第一电池换热器和第二电池换热器。
根据本公开的一实施例,所述加热器和/或所述第一换热器设置在位于分流口上游的主路上并通过第一三通阀并联连接。
根据本公开的一实施例,所述电池热管理系统包括第一加热器和第二加热器,所述第一加热器和/或所述第一换热器通过第二三通阀设置在第一并联支路上,所述第二加热器和/或所述第一换热器通过第三三通阀设置在第二并联支路上。
根据本公开的一实施例,所述电池温控模块包括并联连接的第一电池换热器和第二电池换热器,所述第一电池换热器所在的第一并联支路上设有第一阀门,所述第二电池换热器所在的第二并联支路上设有第二阀门,所述第一换热器和所述加热器设置在位于分流口上游的主路上并通过第一三通阀并联连接,
所述电池热管理系统还包括并联连接在所述第一电池换热器和所述第二电池换热器之间的第三并联支路,所述第三并联支路上设有第三阀门,
连接所述第一并联支路和所述第三并联支路的管路上设有第四阀门,连接所述第二并联支路和所述第三并联支路的管路上设有第五阀门,
连接所述第一阀门和所述动力件之间的第一并联回路上设有第六阀门,连接所述第二阀门和所述动力件的第二并联回路上设有第七阀门,所述第一并联回路和所述第二并联回路并联布置。
根据本公开的一实施例,所述电池热管理系统具有以下模式中的至少一种:
第一液冷模式,所述第一三通阀连通所述第一换热器和所述动力件,所述第一阀门和第六阀门打开,其余阀门关闭,所述动力件驱动换热介质流经所述第一换热器和所述第一电池换热器;
第二液冷模式,所述第一三通阀连通所述第一换热器和所述动力件,所述第四阀门、所述第二阀门和第七阀门打开,其余阀门关闭,所述动力件驱动换热介质流经所述第一换热器和所述第二电池换热器;
第三液冷模式,所述第一三通阀连通所述第一换热器和所述动力件,所述第一阀门、第六阀门、所述第二阀门、第七阀门和第四阀门打开,其余阀门关闭,所述动力件驱动换热介质流经所述第一换热器后分为两路,同时流经所述第一电池换热器和所述第二电池换热器;
第四液冷模式,所述第一三通阀连通所述第一换热器和所述动力件,所述第一阀门、所述第三阀门、所述第二阀门和第五阀门打开,其余阀门关闭,所述动力件驱动换热介质依次流经所述第一换热器、所述第一电池换热器和第二电池换热器;
第五液冷模式,所述第一三通阀连通所述第一换热器和所述动力件,在第一预设时间段内,所述第一阀门和第六阀门打开,其余阀门关闭,所述动力件驱动换热介质流经所述第一换热器和所述第一电池换热器;在第二预设时间段内,所述第四阀门、所述第二阀门和第七阀门打开,其余阀门关闭,所述动力件驱动换热介质流经所述第一换热器和所述第二电池换热器;
第一液热模式,所述第一三通阀连通所述加热器和所述动力件,所述加热器加热,所述第一阀门和第六阀门打开,其余阀门关闭,所述动力件驱动换热介质流经所述加热器和所述第一电池换热器;
第二液热模式,所述第一三通阀连通所述加热器和所述动力件,所述加热器加热,所述第四阀门、所述第二阀门和第七阀门打开,其余阀门关闭,所述动力件驱动换热介质流经所述加热器和所述第二电池换热器;
第三液热模式,所述第一三通阀连通所述加热器和所述动力件,所述加热器加热,所述第一阀门、第六阀门、所述第二阀门、第七阀门和第四阀门打开,其余阀门关闭,所述动力件驱动换热介质流经所述加热器后分为两路,同时流经所述第一电池换热器和所述第二电池换热器;
第四液热模式,所述第一三通阀连通所述加热器和所述动力件,所述加热器加热,所述第一阀门、所述第三阀门、所述第二阀门和第五阀门打开,其余阀门关闭,所述动力件驱动换热介质依次流经所述加热器、所述第一电池换热器和第二电池换热器;
第五液热模式,所述第一三通阀连通所述加热器和所述动力件,所述加热器加热,在第一预设时间段内,所述第一阀门和第六阀门打开,其余阀门关闭,所述动力件驱动换热介质流经所述加热器和所述第一电池换热器;在第二预设时间段内,所述第四阀门、所述第二阀门和第七阀门打开,其余阀门关闭,所述动力件驱动换热介质流经所述加热器和所述第二电池换热器;
第一均温模式,所述第一三通阀连通所述加热器和所述动力件,所述加热器关闭加热,所述第一阀门、第六阀门、所述第二阀门、第七阀门和第四阀门打开,其余阀门关闭,所述动力件驱动换热介质同时流经所述第一电池换热器和所述第二电池换热器;
第二均温模式,所述第一三通阀连通所述加热器和所述动力件,所述加热器关闭加热,所述第一阀门、所述第三阀门、所述第二阀门和第五阀门打开,其余阀门关闭,所述动力件驱动换热介质依次流经所述第一电池换热器和第二电池换热器;以及
节能模式,所述第一三通阀连通所述加热器和所述动力件,所述加热器关闭加热,所述动力件驱动换热介质在所述第一电池换热器或所述第二电池换热器中流动。
根据本公开的一实施例,所述电池温控模块包括用于驱动换热介质循环流动的动力件、并联连接的第一电池换热器和第二电池换热器,所述第一电池换热器所在的第一并联支路上设有第一阀门,所述第二电池换热器所在的第二并联支路上设有第二阀门,
所述第一换热器设置在位于分流口上游的主路上并通过第一三通阀可选择性接入,所述电池热管理系统包括第一加热器和第二加热器,所述第一加热器通过第二三通阀设置在第一并联支路上,所述第二加热器通过第三三通阀设置在第二并联支路上,
所述电池热管理系统还包括并联连接在所述第一电池换热器和所述第二电池换热器之间的第三并联支路,所述第三并联支路上设有第三阀门,
连接所述第一并联支路和所述第三并联支路的管路上设有第四阀门,连接所述第二并联支路和所述第三并联支路的管路上设有第五阀门,
连接所述第一阀门和所述动力件之间的第一并联回路上设有第六阀门,连接所述第二阀门和所述动力件的第二并联回路上设有第七阀门,所述第一并联回路和所述第二并联回路并联布置。
根据本公开的一实施例,所述电池热管理系统具有以下模式中的至少一种:
第一液冷模式,所述第一三通阀连通所述第一换热器和所述动力件,所述第二三通阀短接所述第一加热器,所述第三三通阀关闭,所述第一阀门和第六阀门打开,其余阀门关闭,所述动力件驱动换热介质流经所述第一换热器和所述第一电池换热器;
第二液冷模式,所述第一三通阀连通所述第一换热器和所述动力件,所述第二三通阀关闭,所述第三三通阀短接所述第二加热器,所述第四阀门、所述第二阀门和第七阀门打开,其余阀门关闭,所述动力件驱动换热介质流经所述第一换热器和所述第二电池换热器;
第三液冷模式,所述第一三通阀连通所述第一换热器和所述动力件,所述第二三通阀短接所述第一加热器,所述第三三通阀短接所述第二加热器,所述第一阀门、第六阀门、所述第二阀门、第七阀门和第四阀门打开,其余阀门关闭,所述动力件驱动换热介质流经所述第一换热器后分为两路,同时流经所述第一电池换热器和所述第二电池换热器;
第四液冷模式,所述第一三通阀连通所述第一换热器和所述动力件,所述第二三通阀短接所述第一加热器,所述第三三通阀短接所述第二加热器,所述第一阀门、所述第三阀门、所述第二阀门和第五阀门打开,其余阀门关闭,所述动力件驱动换热介质依次流经所述第一换热器、所述第一电池换热器和第二电池换热器;
第五液冷模式,所述第一三通阀连通所述第一换热器和所述动力件,在第一预设时间段内,所述第二三通阀短接所述第一加热器,所述第三三通阀关闭,所述第一阀门和第六阀门打开,其余阀门关闭,所述动力件驱动换热介质流经所述第一换热器和所述第一电池换热器;在第二预设时间段内,所述第二三通阀关闭,所述第三三通阀短接所述第二加热器,所述第四阀门、所述第二阀门和第七阀门打开,其余阀门关闭,所述动力件驱动换热介质流经所述第一换热器和所述第二电池换热器;
第一液热模式,所述第一三通阀短接所述第一换热器,所述第二三通阀指向所述第一加热器,所述第三三通阀关闭,所述第一加热器加热,所述第一阀门和第六阀门打开,其余阀门关闭,所述动力件驱动换热介质流经所述第一加热器和所述第一电池换热器;
第二液热模式,所述第一三通阀短接所述第一换热器,所述第二三通阀关闭,所述第三三通阀指向所述第二加热器,所述第二加热器加热,所述第四阀门、所述第二阀门和第七阀门打开,其余阀门关闭,所述动力件驱动换热介质流经所述加热器和所述第二电池换热器;
第三液热模式,所述第一三通阀短接所述第一换热器,所述第二三通阀指向所述第一加热器,所述第三三通阀指向所述第二加热器,所述第一加热器和所述第二加热器加热,所述第一阀门、第六阀门、所述第二阀门、第七阀门和第四阀门打开,其余阀门关闭,所述动力件驱动换热介质流分为两路,分别流入所述第一加热器和所述第二加热器进行加热,同时流经所述第一电池换热器和所述第二电池换热器;
第四液热模式,所述第一三通阀短接所述第一换热器,所述第二三通阀指向所述第一加热器,所述第三三通阀指向所述第二加热器,所述第一加热器和所述第二加热器加热,所述第一阀门、所述第三阀门、所述第二阀门和第五阀门打开,其余阀门关闭,所述动力件驱动换热介质依次流经所述第一加热器、所述第一电池换热器、所述第二加热器和所述第二电池换热器;
第五液热模式,所述第一三通阀短接所述第一换热器,在第一预设时间段内,所述第二三通阀指向所述第一加热器,所述第三三通阀关闭,所述第一加热器加热,所述第一阀门和第六阀门打开,其余阀门关闭,所述动力件驱动换热介质流经所述第一加热器和所述第一电池换热器;在第二预设时间段内,所述第二三通阀关闭,所述第三三通阀指向所述第二加热器,所述第二加热器加热,所述第四阀门、所述第二阀门和第七阀门打开,其余阀门关闭,所述动力件驱动换热介质流经所述加热器和所述第二电池换热器;
第一均温模式,所述第一三通阀短接所述第一换热器,所述第二三通阀短接所述第一加热器,所述第三三通阀短接所述第二加热器,所述第一阀门、第六阀门、所述第二阀门、第七阀门和第四阀门打开,其余阀门关闭,所述动力件驱动换热介质同时流经所述第一电池换热器和所述第二电池换热器;
第二均温模式,所述第一三通阀短接所述第一换热器,所述第二三通阀短接所述第一加热器,所述第三三通阀短接所述第二加热器,所述第一阀门、所述第三阀门、所述第二阀门和第五阀门打开,其余阀门关闭,所述动力件驱动换热介质依次流经所述第一电池换热器和第二电池换热器;以及
节能模式,所述第一三通阀短接所述第一换热器,所述第二三通阀短接所述第一加热器,所述第三三通阀短接所述第二加热器,所述动力件驱动换热介质在所述第一电池换热器或所述第二电池换热器中流动。
根据本公开的一实施例,所述热交换模块包括依次相连接的压缩机、环境换热器、膨胀阀、第一换热器和第二换热器,所述压缩机和所述环境换热器之间设有四通换向阀。
根据本公开的一实施例,所述第一换热器和所述第二换热器相并联,设有所述第一换热器的管路上设有第一电子膨胀阀,设有所述第二换热器的管路上设有第二电子膨胀阀。
根据本公开的一实施例,在所述液热模式下,
所述第一电子膨胀阀关闭,所述电池温控模块和所述热交换模块相互独立;
所述第一电子膨胀阀打开,所述第一换热器接入所述电池温控模块中,所述电池温控模块的部分热量用于所述热交换模块。
根据本公开的一实施例,所述电池热管理系统还包括设于所述多个电池换热部上游或下游的温度检测元件,以根据所述温度检测元件获取的信息控制所述多个电池换热部是否工作。
根据本公开的第二个方面,还提供一种用电设备,包括上述的电池热管理系统。
在本公开提供的电池热管理系统中,多个电池换热部分别对应电池的不同部位,多个电池换热部相互独立,可单独控制每个电池换热部内换热介质的流量和流通时间,通过控制不同电池换热部内的换热介质的流动情况,可对电池各部位的温度进行调整,起到均温作用。第一换热器和加热器分别作为冷源和热源可选择性接入电池温控模块中,经第一换热器散热后的换热介质(此时换热介质温度较低)能够选择性地流入多个电池换热部中的至少一者中吸收电池的热量,以对电池进行冷却;经加热器加热后的换热介质(此时换热介质温度较高)能够选择性地流入多个电池换热部中的至少一者中释放热量,以对电池进行加热,对电池换热部内的换热介质进行加热或冷却,从而能够对电池加热和冷却过程灵活调整,并进行精确控制,减小电池各部分的温差。同时,每个电池换热部的流道缩短,流阻减小,进出口处换热介质的压降明显变小,温降减小,进一步降低了电池温差,提高了电池的整体性能。
本公开的其他特征和优点将在随后的具体实施方式部分予以详细说明。
附图说明
附图是用来提供对本公开的进一步理解,并且构成说明书的一部分,与下面的具体实施方式一起用于解释本公开,但并不构成对本公开的限制。在附图中:
图1是本公开相关实施例提供的电池热管理系统的示意图;
图1a是本公开相关实施例提供的电池热管理系统的示意图(液冷模式);
图1b是本公开相关实施例提供的电池热管理系统的示意图(液热模式);
图2是本公开第一示例性实施例提供的电池热管理系统的示意图;
图2a至图2h是本公开第一示例性实施例提供的电池热管理系统不同工作模式下的示意图;
图3是本公开第二示例性实施例提供的电池热管理系统的示意图;
图3a至图3g是本公开第二示例性实施例提供的电池热管理系统不同工作模式下的示意图;
图4是本公开第三示例性实施例提供的电池热管理系统的示意图;
图4a至图4j是本公开第三示例性实施例提供的电池热管理系统不同工作模式下的示意图;
图5是本公开第四示例性实施例提供的电池热管理系统的示意图;
图5a至图5j是本公开第四示例性实施例提供的电池热管理系统不同工作模式下的示意图;
图6是本公开第五示例性实施例提供的电池热管理系统的示意图;
图7是本公开一示例性实施例提供的电池热管理系统中电池换热器的示意图。
附图标记说明
1-热交换模块;10-电池系统换热器;11-第一换热器;12-第二换热器;13-环境换热器;14-压缩机;15-换向阀;16-第一电子膨胀阀;17-第二电子膨胀阀;18-膨胀阀;2-电池温控模块;20-电池换热器;201-第一流道区;202-第二流道区;2000-流道;2001-第一电池换热部;2002-第二电池换热部; 2011-第一进口;2012-第一出口;2021-第二进口;2022-第二出口;21-第一电池换热器;211-第一阀门;22-第二电池换热器;221-第二阀门;23-加热器;231-第一加热器;232-第二加热器;233-第三加热器;24-动力件;25-第三并联支路;251-第四阀门;252-第三阀门;253-第五阀门;254-第六阀门;255-第七阀门;261-第一三通阀;262-第二三通阀;263-第三三通阀;3-温度检测元件;41-第一并联支路;42-第二并联支路;51-第一并联回路;52-第二并联回路。
具体实施方式
以下结合附图对本公开的具体实施方式进行详细说明。应当理解的是,此处所描述的具体实施方式仅用于说明和解释本公开,并不用于限制本公开。
在本公开中,在未作相反说明的情况下,使用的方位词如“上”、“下”通常是指相应附图的图面方向,“上游”、“下游”是指针对换热介质的流动方向而言的,使用的术语“第一”、“第二”等词的使用目的在于区分不同的部件,并不具有顺序性和重要性。此外,在下面的描述中,当涉及到附图时,除非另有解释,不同的附图中相同的附图标记表示相同或相似的要素。
在本公开的相关实施例中,为实现对电池系统的加热和冷却,如图1所示,新能源汽车电池热管理系统包括压缩机14、换向阀15、乘员舱空调系统换热器、板式换热器、第一电子膨胀阀16、第二电子膨胀阀17、膨胀阀18、环境换热器13、水泵、电池系统换热器10、加热器和三通阀组成。
如图1a所示,通过调整换向阀15,将汽车空调系统调整为制冷模式,冷媒循环如下:气态低压冷媒经过压缩机14转化为气态高压冷媒,再经过环境换热器13释放热量并转化为液态高压冷媒。液态高压冷媒经过膨胀阀18转化为液态低压冷媒后分为并联的两路,分别经过乘员舱空调系统换热器和板式换热器吸收热量并转化气态低压冷媒,两路冷媒流量通过第一电子膨胀阀16和第二电子膨胀阀17协同控制。之后两路气态低压冷媒合并,经过换向阀15回到压缩机14。在液冷模式下,换热介质循环如下:换热介质在水泵的驱动作用下在水泵、板式换热器和电池系统换热器10组成的冷却回路中循环。换热介质经过板式换热器释放热量达到一定的温度,此时,板式换热器中流动的是液态低压冷媒,再经过电池系统换热器10时能够吸收电池的热量,完成对电池系统的冷却。
如图1b所示,第一电子膨胀阀16关闭,空调系统与液热系统相互独立、互不干涉。在液热模式下,换热介质循环如下:换热介质在水泵的驱动作用下在水泵、加热器和电池系统换热器10组成的加热回路中循环。换热介质经过加热器吸收热量达到一定的温度,再经过电池系统换热器时将释放热量,完成对电池系统的加热。
而空调系统,通过改变换向阀15,将空调系统调整为制热模式,气态低压冷媒经过压缩机14转化为气态高压冷媒,先经过乘员舱空调系统换热器(相当于冷凝器)释放热量并转化为液态高压冷媒,完成对乘员舱的制热。液态高压冷媒经过第二电子膨胀阀17和膨胀阀18转化为液态低压冷媒后,经过环境换热器(相当于蒸发器)吸收热量并转化气态低压冷媒,经过换向阀15回到压缩机14。
在上述实施例中,无法针对不同环境和不同工况对电池各局部进行加热或冷却,无法满足不同电池部位对冷热负荷的需求,导致电池各部分温差较大。并且电池系统换热器的流道长,流阻大,导致换热介质进出口位置压降大、温降大、不利于控制电池的温差,影响电池的整体性能。
为解决上述问题,如图2至图6所示,本公开提供一种电池热管理系统,该电池热管理系统包括热交换模块1和电池温控模块2(虚线框内所示),热交换模块1中具有用作冷源的第一换热器11,第一换热器11和用作热源的加热器23可选择性接入电池温控模块2中,当第一换热器11接入电池温控模块2时,对电池进行冷却,当第一换热器11未接入电池温控模块2,而是将加热器23接入时,对电池进行加热。电池温控模块2包括动力件24和多个电池换热部,动力件24可以为水泵,多个电池换热部可选择性地接入电池温控模块2的换热介质循环中。
在本公开提供的电池热管理系统中,多个电池换热部分别对应电池的不同部位,多个电池换热部相互独立,可单独控制每个电池换热部内换热介质的流量和流通时间,通过控制不同电池换热部内的换热介质的流动情况,可对电池各部位的温度进行调整,起到均温作用。第一换热器11和加热器23分别作为冷源和热源可选择性接入电池温控模块2中,经第一换热器11散热后的换热介质(此时换热介质温度较低)能够选择性地流入多个电池换热部中的至少一者中吸收电池的热量,以对电池进行冷却;经加热器23加热后的换热介质(此时换热介质温度较高)能够选择性地流入多个电池换热部中的至少一者中释放热量,以对电池进行加热,多个电池换热部能够同时、或单独、或交替对电池进行冷却或加热,从而能够对电池加热和冷却过程灵活调整,并进行精确控制,减小电池各部分的温差。同时,每个电池换热部的流道缩短,流阻减小,进出口处换热介质的压降明显变小,温降减小,进一步降低了电池温差,提高了电池的整体性能。
多个电池换热部的设置方式可以有多种。下文中将以设置两个电池换热部为例进行详细介绍,当然也可以根据需要,增加电池换热部的数量。本公开包括将一个电池换热器上的多条流道分为两个相互独立的流道区的实施例,也包括设置两个独立的电池换热器的实施例。
在本公开的一示例性实施例中,如图6所示,电池温控模块2包括一个电池换热器,电池换热器的多条流道分为相互独立的第一流道区201和第二流道区202,第一流道区201形成为第一电池换热部,第二流道区202形成为第二电池换热部。第一流道区201和第二流道区202分别设置相应的换热介质进口和出口,第一流道区201具有第一进口2011和第一出口2012,第二流道区202具有第二进口2021和第二出口2022,进口和出口设置在液冷板的同一侧,与进口相连通的多条流道和与出口相连通的多条流道,在与进口和出口相反的一侧相互连通,这样,从进口流入的换热介质经流道流动,在与进口和出口相反的一侧汇流后从出口流出,以形成环形流动路径。第一流道区201和第二流道区202的流量可以不同,可单独控制。
在本公开的另一示例性实施例中,电池温控模块2包括第一电池换热器21和第二电池换热器22,第一电池换热器21形成为第一电池换热部,第二电池换热器22形成为第二电池换热部。两个电池换热器相互独立,可单独控制,下文将以该实施例为例展开详细描述。第一电池换热器21和第二电池换热器22的结构可以相同,也可以不同,可根据需要进行选择和设计。
在本公开中,在图2和图3所示的实施例中,第一电池换热器21和第二电池换热器22相并联,可以单独开启(仅使用其中的一个),也可以同时开启(相并联),也可以选择交替开启(两个电池换热器不同时开启,开启的时间段不一致)。在图4和图5所示的实施例中,通过对管道和阀门的设计,第一电池换热器21和第二电池换热器22可以选择性地并联或串联,与图2和图3所示的实施例相比,在同时开启时,两个电池换热器既可以采用并联的方式,也可以采用相串联的方式,先流入第一电池换热器21再流经第二电池换热器22,可根据不同环境和工况的需要进行合适的选择。
在本公开中,在图2和图4所示的实施例中,加热器23为一个(设置在主路上),且第一电池换热器21和第二电池换热器22共用加热器23,加热器23选择性接入电池温控模块2中(只有在液热模式下才将加热器23接入,液冷模式下加热器23被短接)。在图3和图5所示的实施例中,电池热管理系统包括第一加热器231和第二加热器232(设置在支路上),第一加热器231和第二加热器232能够选择性接入电池温控模块2中,以分别对流入第一电池换热器21和第二电池换热器22的换热介质进行加热,采用双加热器的形式,分别为第一电池换热器21和第二电池换热器22设置加热器,加热器的数量可根据电池换热器的数量进行设计。
在图6所示的实施例5中,电池热管理系统包括设置在支路上的第一加热器231和第二加热器232,还包括设置在主路上的第三加热器233,第三加热器233可以并联,也可以串联(在串联的实施例中,在液冷模式下,第三加热器233仅流通,不加热),通过在主路和支路上分别设置加热器,可对换热介质的加热功率进行调整,并且任意其中一个加热器可以作为备用,保证对换热介质的加热作用。在实施例5中,主路和支路上的加热器可以同时接入,也可以单独接入,以主路上的第三加热器233和支路上的第一加热器231同时接入为例,其阀门布置和开闭控制方式与单独接入时类似,可以采用实施例1中管路和阀门的布置方式,也可以采用实施例3管路和阀门的布置方式,均属于本公开的保护范围。
在本公开中,电池组件可以具有第一温度区和第二温度区,第一电池换热部与第一温度区对应换热,第二电池换热部与第二温度区对应换热,本实施方式通过第一电池换热部和第二电池换热部来实现电池组件不同区域的换热,以提高电池组件的均温性,提高电池温度调节的灵活性和便利性。当然,电池换热部的数量可根据电池组件上温度区的数量和位置进行设计,不仅限于两个。
下面将结合附图对四个实施例进行详细介绍。
实施例1(第一电池换热器21和第二电池换热器22并联,共用一个加热器23)
如图2所示,在该实施例中,第一电池换热器21和第二电池换热器22并联连接,第一电池换热器21所在的并联支路上设有第一阀门211,第二电池换热器22所在的并联支路上设有第二阀门221,第一换热器11和加热器23设置在位于分流口A上游(针对经第一换热器11散热的换热介质流入多个电池换热部后经动力件24回流至第一换热器11的流动方向而言的)的主路上并通过第一三通阀261并联连接。通过控制第一阀门211,控制第一电池换热器21是否开启,通过控制第二阀门221,控制第二电池换热器22是否开启,两者可以单独控制,相互独立。第一阀门211、第二阀门221、以及将在下文介绍的多个阀门均可以为电动阀。
在该实施例中,加热器23通过第一三通阀261与第一换热器11并联连接,通过控制第一三通阀261,可在液冷和液热模式之间切换。通过控制第一三通阀261,当连通第一换热器11和动力件24时,进行第一循环回路,为冷却回路,对电池进行冷却,当连通加热器23和动力件24时,进行第二循环回路,对电池进行加热。
在实施例1中,该电池热管理系统的液冷模式为以下工作模式中的一种:
第一液冷模式,如图2a所示,第一三通阀261连通第一换热器11和动力件24,第一阀门211打开,第二阀门221关闭,动力件24驱动换热介质流经第一换热器11和第一电池换热器21,仅与第一电池换热器21相对应的电池部位进行冷却;
第二液冷模式,如图2b所示,第一三通阀261连通第一换热器11和动力件24,第一阀门211关闭,第二阀门221打开,动力件24驱动换热介质流经第一换热器11和第二电池换热器22,仅与第二电池换热器22相对应的电池部位进行冷却;
第三液冷模式,如图2c所示,第一三通阀261连通第一换热器11和动力件24,第一阀门211打开,第二阀门221打开,动力件24驱动换热介质流经第一换热器11后分为两路,同时流经第一电池换热器21和第二电池换热器22,与第一电池换热器21和第二电池换热器22相对应电池部位同时进行冷却;
第四液冷模式,第一三通阀261连通第一换热器11和动力件24,第一阀门211在第一预设时间段内打开,第二阀门221在第二预设时间段内打开,在第一预设时间段内,动力件24驱动换热介质流经第一换热器11和第一电池换热器21,在第二预设时间段内,动力件24驱动换热介质流经第一换热器11和第二电池换热器22。即,第一液冷模式在第一预设时间段内执行,第二液冷模式在第二预设时间段内执行,第一液冷模式和第二液冷模式交替执行,与第一电池换热器21对应的电池部位、与第二电池换热器22对应的电池部位交替进行冷却;
可根据需要选择第一电池换热器21和第二电池换热器22单独、同时或交替对电池进行冷却。
相应的,该实施例下,电池热管理系统的液热模式为以下工作模式中的一种:
第一液热模式,如图2d所示,第一三通阀261连通加热器23和动力件24,加热器23加热,第一阀门211打开,第二阀门221关闭,动力件24驱动换热介质流经加热器23和第一电池换热器21,仅与第一电池换热器21相对应的电池部位进行加热;
第二液热模式,如图2e所示,第一三通阀261连通加热器23和动力件24,加热器23加热,第一阀门211关闭,第二阀门221打开,动力件24驱动换热介质流经加热器23和第二电池换热器22,仅与第二电池换热器22相对应的电池部位进行加热;
第三液热模式,如图2f所示,第一三通阀261连通加热器23和动力件24,加热器23加热,第一阀门211打开,第二阀门221打开,动力件24驱动换热介质流经加热器23后分为两路,同时流经第一电池换热器21和第二电池换热器22,与第一电池换热器21和第二电池换热器22相对应电池部位同时进行加热;
第四液热模式,第一三通阀261连通加热器23和动力件24,加热器23加热,第一阀门211在第一预设时间段内打开,第二阀门221在第二预设时间段内打开,在第一预设时间段内,动力件24驱动换热介质流经加热器23和第一电池换热器21,在第二预设时间段内,动力件24驱动换热介质流经加热器23和第二电池换热器22,即,第一液热模式在第一预设时间段内执行,第二液热模式在第二预设时间段内执行,第一液热模式和第二液热模式交替执行,与第一电池换热器21对应的电池部位、与第二电池换热器22对应的电池部位交替进行加热。
可根据需要选择第一电池换热器21和第二电池换热器22单独、同时或交替对电池进行加热。
在该实施例下,电池热管理系统还具有以下工作模式中的一种:
均温模式,如图2g所示,第一三通阀261连通加热器23和动力件24,加热器23关闭加热,第一阀门211打开,第二阀门221打开,动力件24驱动换热介质在第一电池换热器21和第二电池换热器22之间流动;在该模式下,第一换热器11不接入电池温控模块2中,加热器23接入电池温控模块2中但不加热,通过换热介质在多个电池换热部之间的循环流动,起到均温作用。
节能模式,根据第一电池换热器21和第二电池换热器22内换热介质的温度,控制第一阀门211和第二阀门221的开闭,当换热介质的温度大于预设阈值时,打开对应的阀门,第一三通阀261连通加热器23和动力件24,加热器23关闭加热,动力件24驱动换热介质在第一电池换热器21或第二电池换热器22中流动。以刀片电池的快充电过程为例,两边的温度升高,中间区域升温慢,此时与中间区域对应的电池换热部(例如为第一电池换热器21)内换热介质的温度低于预设阈值,第一阀门211关闭,第一电池换热器21内的换热介质不流动,只有当换热介质的温度达到预设阈值时,其内部的换热介质才循环流动,可减小动力件24对动力的要求,降低能耗,起到节能作用。
实施例2(第一电池换热器21和第二电池换热器22并联,分别设置加热器)
在实施例1的基础上,实施例2为两个电池换热器单独设置加热器,如图3所示,该电池热管理系统包括第一加热器231和第二加热器232,第一加热器231通过第二三通阀262与设有第一电池换热器21的管路相并联,第二加热器232通过第三三通阀263与设有第二电池换热器22的管路相并联。第一加热器231设置在第一电池换热器21所在并联支路的分流入口和第一电池换热器21之间,当第二三通阀262上下两个接口相连通时,将第一加热器231短接,为液冷模式,当第二三通阀262连通上接口和侧接口时,接入第一加热器231,为液热模式。第二加热器232设置在第二电池换热器22所在并联支路的分流入口和第二电池换热器22之间,其接入和短接方式与第一加热器231类似。
在实施例2中,该电池热管理系统的液冷模式为以下工作模式中的一种:
第一液冷模式,如图3a所示,第一三通阀261连通第一换热器11和动力件24,第二三通阀262短接第一加热器231,第三三通阀263关闭,第一阀门211打开,第二阀门221关闭,动力件24驱动换热介质流经第一换热器11和第一电池换热器21,仅与第一电池换热器21相对应的电池部位进行冷却;
第二液冷模式,如图3b所示,第一三通阀261连通第一换热器11和动力件24,第二三通阀262关闭,第三三通阀263短接第二加热器232,第一阀门211关闭,第二阀门221打开,动力件24驱动换热介质流经第一换热器11和第二电池换热器22,仅与第二电池换热器22相对应的电池部位进行冷却;
第三液冷模式,如图3c所示,第一三通阀261连通第一换热器11和动力件24,第二三通阀262短接第一加热器231,第三三通阀263短接第二加热器232,第一阀门211打开,第二阀门221打开,动力件24驱动换热介质流经第一换热器11后分为两路,同时流经第一电池换热器21和第二电池换热器22,与第一电池换热器21和第二电池换热器22相对应电池部位同时进行冷却;
第四液冷模式,第一三通阀261连通第一换热器11和动力件24,第二三通阀262短接第一加热器231,第三三通阀263关闭,第一阀门211在第一预设时间段内打开;第二三通阀262关闭,第三三通阀263短接第二加热器232,第二阀门221在第二预设时间段内打开,在第一预设时间段内,动力件24驱动换热介质流经第一换热器11和第一电池换热器21,在第二预设时间段内,动力件24驱动换热介质流经第一换热器11和第二电池换热器22,即,第一液冷模式在第一预设时间段内执行,第二液冷模式在第二预设时间段内执行,第一液冷模式和第二液冷模式交替执行,与第一电池换热器21对应的电池部位、与第二电池换热器22对应的电池部位交替进行冷却。
可根据需要选择第一电池换热器21和第二电池换热器22单独、同时或交替对电池进行冷却。
相应的,该实施例下,电池热管理系统的液热模式为以下工作模式中的一种:
第一液热模式,如图3d所示,第一三通阀261指向双电池换热器的分流入口,短接第一换热器11,第二三通阀262指向第一加热器231,连通第一加热器231和动力件24,第三三通阀263关闭,第一加热器231加热,第一阀门211打开,第二阀门221关闭,动力件24驱动换热介质流经第一加热器231和第一电池换热器21,以仅对与第一电池换热器21相对应的电池部位进行加热;
第二液热模式,如图3e所示,第一三通阀261指向双电池换热器的分流入口,短接第一换热器11,第三三通阀263指向第二加热器232,连通第二加热器232和动力件24,第二三通阀262关闭,第二加热器232加热,第一阀门211关闭,第二阀门221打开,动力件24驱动换热介质流经第二加热器232和第二电池换热器22,仅与第二电池换热器22相对应的电池部位进行加热;
第三液热模式,如图3f所示,第一三通阀261指向双电池换热器的分流入口,短接第一换热器11,第二三通阀262指向第一加热器231,第三三通阀263指向第二加热器232,第一阀门211打开,第二阀门221打开,动力件24驱动换热介质分成两路分别流经第一加热器231和第二加热器232,同时流经第一电池换热器21和第二电池换热器22,与第一电池换热器21和第二电池换热器22相对应电池部位同时进行加热;
第四液热模式,第一三通阀261指向双电池换热器的分流入口,短接第一换热器11,第二三通阀262指向第一加热器231,第三三通阀263指向第二加热器232,第二三通阀262和第一阀门211在第一预设时间段内同步打开,第三三通阀263和第二阀门221在第二预设时间段内同步打开,在第一预设时间段内,动力件24驱动换热介质流经第一加热器231和第一电池换热器21,在第二预设时间段内,动力件24驱动换热介质流经第二加热器232和第二电池换热器22。即,第一液热模式在第一预设时间段内执行,第二液热模式在第二预设时间段内执行,第一液热模式和第二液热模式交替执行,与第一电池换热器21对应的电池部位、与第二电池换热器22对应的电池部位交替进行加热。
可根据需要选择第一电池换热器21和第一加热器231、第二电池换热器22和第二加热器232单独、同时或交替对电池进行加热。
在该实施例下,电池热管理系统还具有以下工作模式中的一种:
均温模式,如图3g所示,第一三通阀261短接第一换热器11,第二三通阀262短接第一加热器231,第三三通阀263短接第二加热器232,第一阀门211打开,第二阀门221打开,动力件24驱动换热介质在第一电池换热器21和第二电池换热器22之间流动;在该模式下,第一换热器11和加热器23均不接入电池温控模块2中,通过换热介质在多个电池换热部之间的循环流动,起到均温作用。
节能模式,根据第一电池换热器21和第二电池换热器22内换热介质的温度,控制第一阀门211和第二阀门221的开闭,当换热介质的温度大于预设阈值时,打开对应的阀门,第一三通阀261短接第一换热器11,第二三通阀262短接第一加热器231,第三三通阀263短接第二加热器232,动力件24驱动换热介质在第一电池换热器21或第二电池换热器22中流动。只有当换热介质的温度达到预设阈值时,其内部的换热介质才循环流动,可减小动力件24对动力的要求,降低能耗,起到节能作用。
实施例3(第一电池换热器21和第二电池换热器22共用同一加热器23,可选择性并列或串联)
在该实施例中,如图4所示,电池温控模块2包括并联连接的第一电池换热器21和第二电池换热器22,第一电池换热器21所在的第一并联支路上设有第一阀门211,第二电池换热器22所在的第二并联支路上设有第二阀门221,第一换热器11和加热器23设置在位于分流口上游的主路上并通过第一三通阀261并联连接,电池热管理系统还包括并联连接在第一电池换热器21和第二电池换热器22之间的第三并联支路25,第三并联支路25上设有第三阀门252,连接第一并联支路41和第三并联支路25的管路上设有第四阀门251,连接第二并联支路42和第三并联支路25的管路上设有第五阀门253,连接第一阀门211和动力件24之间的第一并联回路51上设有第六阀门254,连接第二阀门221和动力件24的第二并联回路52上设有第七阀门255,第一并联回路51和第二并联回路52并联布置。上述阀门的数量和布置方式不仅限于图中所示,可根据需要增加或减少阀门,并且在一些工作模式下,部分阀门可以用作备用阀门。
通过上述管路和阀门的布置,当第一阀门211和第六阀门254打开,其他阀门关闭时,开启第一电池换热器21;当第四阀门251、第二阀门221、第七阀门255打开,其他阀门关闭时,开启第二电池换热器22;当第一阀门211、第六阀门254、第四阀门251、第二阀门221和第七阀门255打开,其他阀门关闭时,第一电池换热器21和第二电池换热器22同时开启且两者相并联;当第一阀门211、第三阀门252、第二阀门221和第七阀门255打开,其他阀门关闭时,第一电池换热器21和第二电池换热器22同时开启且两者相串联,可根据需要进行选择。能够实现第一电池换热器21和第二电池换热器22可选择性并连或串联的管路连接方式均属于本公开的保护范围。
在实施例3中,该电池热管理系统的液冷模式为以下工作模式中的一种:
第一液冷模式,如图4a所示,第一三通阀261连通第一换热器11和动力件24,第一阀门211和第六阀门254打开,其他阀门关闭,动力件24驱动换热介质流经第一换热器11和第一电池换热器21,仅与第一电池换热器21相对应的电池部位进行冷却;
第二液冷模式,如图4b所示,第一三通阀261连通第一换热器11和动力件24,第四阀门251、第二阀门221和第七阀门255打开,其他阀门关闭,动力件24驱动换热介质流经第一换热器11和第二电池换热器22,仅与第二电池换热器22相对应的电池部位进行冷却;
第三液冷模式,如图4c所示,第一三通阀261连通第一换热器11和动力件24,第一阀门211、第六阀门254、第四阀门251、第二阀门221和第七阀门255打开,其他阀门关闭时,动力件24驱动换热介质流经第一换热器11后分为两路,同时流经第一电池换热器21和第二电池换热器22,与第一电池换热器21和第二电池换热器22相对应电池部位同时进行冷却;
第四液冷模式,如图4d所示,第一三通阀261连通第一换热器11和动力件24,第一阀门211、第三阀门252、第二阀门221和第七阀门255打开,其他阀门关闭,动力件驱动换热介质依次流经第一换热器11、第一电池换热器21和第二电池换热器22,与第一电池换热器21和第二电池换热器22相对应电池部位依次进行冷却;
第五液冷模式,第一三通阀261连通第一换热器11和动力件24,第一阀门211和第六阀门254在第一预设时间段内同步打开,第四阀门251、第二阀门221和第七阀门255在第二预设时间段内同步打开,在第一预设时间段内,动力件24驱动换热介质流经第一换热器11和第一电池换热器21,在第二预设时间段内,动力件24驱动换热介质流经第一换热器11和第二电池换热器22,即,第一液冷模式在第一预设时间段内执行,第二液冷模式在第二预设时间段内执行,第一液冷模式和第二液冷模式交替执行,与第一电池换热器21对应的电池部位、与第二电池换热器22对应的电池部位交替进行冷却。
可根据需要选择第一电池换热器21和第二电池换热器22单独、同时或交替对电池进行冷却。
相应的,该实施例下,电池热管理系统的液热模式为以下工作模式中的一种:
第一液热模式,如图4e所示,第一三通阀261连通加热器23和动力件24,加热器23加热,第一阀门211和第六阀门254打开,其他阀门关闭,动力件24驱动换热介质流经加热器23和第一电池换热器21,仅与第一电池换热器21相对应的电池部位进行加热;
第二液热模式,如图4f所示,第一三通阀261连通加热器23和动力件24,加热器23加热,第四阀门251、第二阀门221和第七阀门255打开,其他阀门关闭,动力件24驱动换热介质流经加热器23和第二电池换热器22,仅与第二电池换热器22相对应的电池部位进行加热;
第三液热模式,如图4g所示,第一三通阀261连通加热器23和动力件24,加热器23加热,第一阀门211、第六阀门254、第四阀门251、第二阀门221和第七阀门255打开,其他阀门关闭,动力件24驱动换热介质流经加热器23后分为两路,同时流经第一电池换热器21和第二电池换热器22,与第一电池换热器21和第二电池换热器22相对应电池部位同时进行加热;
第四液热模式,如图4h所示,第一三通阀261连通加热器23和动力件24,加热器23加热,第一阀门211、第三阀门252、第二阀门221和第七阀门255打开,其他阀门关闭,动力件驱动换热介质依次流经加热器23、第一电池换热器21和第二电池换热器22,与第一电池换热器21和第二电池换热器22相对应电池部位依次进行加热;
第五液热模式,第一三通阀261连通加热器23和动力件24,第一阀门211和第六阀门254在第一预设时间段内同步打开,第四阀门251、第二阀门221和第七阀门255在第二预设时间段内同步打开,在第一预设时间段内,动力件24驱动换热介质流经加热器23和第一电池换热器21,在第二预设时间段内,动力件24驱动换热介质流经加热器23和第二电池换热器22。即,第一液热模式在第一预设时间段内执行,第二液热模式在第二预设时间段内执行,第一液热模式和第二液热模式交替执行,与第一电池换热器21对应的电池部位、与第二电池换热器22对应的电池部位交替进行加热;
可根据需要选择第一电池换热器21和第二电池换热器22单独、同时或交替对电池进行加热。
在该实施例下,该电池热管理系统还具有以下工作模式中的至少一种:
第一均温模式,如图4i所示,第一三通阀261连通加热器23和动力件24,加热器23关闭加热,第一阀门211、第六阀门254、第二阀门221、第七阀门255和第四阀门251打开,其余阀门关闭,动力件24驱动换热介质同时流经第一电池换热器21和第二电池换热器22。
第二均温模式,如图4j所示,第一三通阀261连通加热器23和动力件24,加热器23关闭加热,第一阀门211、第三阀门252、第二阀门221和第七阀门255打开,其余阀门关闭,动力件24驱动换热介质依次流经第一电池换热器21和第二电池换热器22。
节能模式,根据第一电池换热器21和第二电池换热器22内换热介质的温度,控制第一阀门211和第六阀门254的开闭,或者控制第二阀门221、第四阀门251和第七阀门255的开闭,当换热介质的温度大于预设阈值时,打开对应的阀门,第一三通阀261连通加热器23和动力件24,加热器23关闭加热,动力件24驱动换热介质在第一电池换热器21或第二电池换热器22中流动。该实施例中均温模式和节能模式下的有益效果与实施1和实施例2类似,此处不做重复赘述。
实施例4(第一电池换热器21和第二电池换热器22单独设置加热器,可选选性并联或串联)
在该实施例中,如图5所示,两个加热器的布置方式与实施例2类似,两个电池换热器可选择性并联或串联的布置方式与实施例3类似,不再重复赘述。该电池热管理系统中,电池温控模块2包括并联连接的第一电池换热器21和第二电池换热器22,第一电池换热器21所在的第一并联支路上设有第一阀门211,第二电池换热器22所在的第二并联支路上设有第二阀门221,第一换热器11设置在位于分流口上游的主路上并通过第一三通阀261可选择性接入,电池热管理系统包括第一加热器231和第二加热器232,第一加热器231通过第二三通阀262设置在第一并联支路上,第二加热器232通过第三三通阀263设置在第二并联支路上,电池热管理系统还包括并联连接在第一电池换热器21和第二电池换热器22之间的第三并联支路25,第三并联支路25上设有第三阀门252,连接第一并联支路和第三并联支路25的管路上设有第四阀门251,连接第二并联支路和第三并联支路25的管路上设有第五阀门253,连接第一阀门211和动力件24之间的第一回路上设有第六阀门254,连接第二阀门221和动力件24的第二回路上设有第七阀门255,第一回路和第二回路并联布置。
在实施例4中,该电池热管理系统的液冷模式为以下工作模式中的一种:
第一液冷模式,如图5a所示,第一三通阀261连通第一换热器11和动力件24,第二三通阀262短接第一加热器231,第三三通阀263关闭,第一阀门211和第六阀门254打开,其他阀门关闭,动力件24驱动换热介质流经第一换热器11和第一电池换热器21,仅与第一电池换热器21相对应的电池部位进行冷却;
第二液冷模式,如图5b所示,第一三通阀261连通第一换热器11和动力件24,第二三通阀262关闭,第三三通阀263短接第二加热器232,第二阀门221和第七阀门255打开,其他阀门关闭,动力件24驱动换热介质流经第一换热器11和第二电池换热器22,仅与第二电池换热器22相对应的电池部位进行冷却;
第三液冷模式,如图5c所示,第一三通阀261连通第一换热器11和动力件24,第二三通阀262短接第一加热器231,第三三通阀263短接第二加热器232,第一阀门211、第六阀门254、第四阀门251、第二阀门221和第七阀门255打开,其他阀门关闭时,动力件24驱动换热介质流经第一换热器11后分为两路,同时流经第一电池换热器21和第二电池换热器22,与第一电池换热器21和第二电池换热器22相对应电池部位同时进行冷却;
第四液冷模式,如图5d所示,第一三通阀261连通第一换热器11和动力件24,第二三通阀262短接第一加热器231,第三三通阀263短接第二加热器232,第一阀门211、第三阀门252、第二阀门221和第七阀门255打开,其他阀门关闭,动力件驱动换热介质依次流经第一换热器11、第一电池换热器21和第二电池换热器22,与第一电池换热器21和第二电池换热器22相对应电池部位依次进行冷却;
第五液冷模式,第一三通阀261连通第一换热器11和动力件24,第二三通阀262短接第一加热器231,第一阀门211和第六阀门254在第一预设时间段内打开,第三三通阀263短接第二加热器232,第二阀门221和第七阀门255在第二预设时间段内打开,在第一预设时间段内,动力件24驱动换热介质流经第一换热器11和第一电池换热器21,在第二预设时间段内,动力件24驱动换热介质流经第一换热器11和第二电池换热器22。第一液冷模式在第一预设时间段内执行,第二液冷模式在第二预设时间段内执行,第一液冷模式和第二液冷模式交替执行,与第一电池换热器21对应的电池部位、与第二电池换热器22对应的电池部位交替进行冷却。
可根据需要选择第一电池换热器21和第二电池换热器22单独、同时或交替对电池进行冷却。
相应的,该实施例下,电池热管理系统的液热模式为以下工作模式中的一种:
第一液热模式,如图5e所示,第一三通阀261指向双电池换热器的分流入口,短接第一换热器11,第二三通阀262指向第一加热器231,连通第一加热器231和动力件24,第一阀门211和第六阀门254打开,其他阀门关闭,动力件24驱动换热介质流经第一加热器231和第一电池换热器21,以仅对与第一电池换热器21相对应的电池部位进行加热;
第二液热模式,如图5f所示,第一三通阀261指向双电池换热器的分流入口,第三三通阀263指向第二加热器232,连通第二加热器232和动力件24,第四阀门251、第二阀门221和第七阀门255打开,其他阀门关闭,动力件24驱动换热介质流经第二加热器232和第二电池换热器22,仅与第二电池换热器22相对应的电池部位进行加热;
第三液热模式,如图5g所示,第一三通阀261指向双电池换热器的分流入口,第二三通阀262指向第一加热器231,第三三通阀263指向第二加热器232,第一阀门211、第六阀门254、第四阀门251、第二阀门221和第七阀门255打开,其他阀门关闭,动力件24驱动换热介质分成两路分别流经第一加热器231和第二加热器232,同时流经第一电池换热器21和第二电池换热器22,与第一电池换热器21和第二电池换热器22相对应电池部位同时进行加热;
第四液热模式,如图5h所示,第一三通阀261指向双电池换热器的分流入口,短接第一换热器11,第二三通阀262指向第一加热器231,第三三通阀263指向第二加热器232,第一阀门211、第三阀门252、第二阀门221和第七阀门255打开,其他阀门关闭,动力件驱动换热介质依次流经加热器23、第一电池换热器21和第二电池换热器22,与第一电池换热器21和第二电池换热器22相对应电池部位依次进行加热;
第五液热模式,第一三通阀261指向双电池换热器的分流入口,第二三通阀262指向第一加热器231,第一阀门211和第六阀门254打开在第一预设时间段内同步执行,第三三通阀263指向第二加热器232,第四阀门251、第二阀门221和第七阀门255打开在第二预设时间段内同步执行,在第一预设时间段内,动力件24驱动换热介质流经第一加热器231和第一电池换热器21,在第二预设时间段内,动力件24驱动换热介质流经第二加热器232和第二电池换热器22,与第一电池换热器21对应的电池部位、与第二电池换热器22对应的电池部位交替进行冷却。
可根据需要选择第一电池换热器21和第一加热器231、第二电池换热器22和第二加热器232单独、同时或交替对电池进行加热。
在该实施例下,该电池热管理系统还具有以下工作模式中的至少一种:
第一均温模式,如图5i所示,第一三通阀261短接第一换热器11,第二三通阀262短接第一加热器231,第三三通阀263短接第二加热器232,第一阀门211、第六阀门254、第二阀门221、第七阀门255和第四阀门251打开,其余阀门关闭,动力件24驱动换热介质同时流经第一电池换热器21和第二电池换热器22;
第二均温模式,如图5j所示,第一三通阀261短接第一换热器11,第二三通阀262短接第一加热器231,第三三通阀263短接第二加热器232,第一阀门211、第三阀门252、第二阀门221和第七阀门255打开,其余阀门关闭,动力件24驱动换热介质依次流经第一电池换热器21和第二电池换热器22;以及
节能模式,第一三通阀261短接第一换热器11,第二三通阀262短接第一加热器231,第三三通阀263短接第二加热器232,控制第一阀门211和第六阀门254的开闭,或者控制第二阀门221、第四阀门251和第七阀门255的开闭,当换热介质的温度大于预设阈值时,打开对应的阀门,动力件24驱动换热介质在第一电池换热器21或第二电池换热器22中流动。
如图2所示,本公开提供的电池热管理系统还包括设于多个电池换热部上游或下游的温度检测元件3,以根据温度检测元件3获取的信息控制多个电池换热部是否工作。温度检测元件3可以为温度传感器,能够监测电池换热器的入口或出口换热介质的温度,从而调节加热器的加热功率、各阀门的打开或关闭或开度等,调节换热介质的流量和流通时间,协同实现对第一电池换热器21和第二电池换热器22的控制,满足电池不同的换热需求。
热交换模块1可以为能够提供冷源的任意热交换结构。以空调模块为例,空调模块包括依次相连接的压缩机14、环境换热器13、膨胀阀18、第一换热器11和第二换热器12,压缩机14和环境换热器13之间设有换向阀15,通过控制换向阀15在液冷模式和液热模式之间切换。经压缩机14压缩的气态高压冷媒向环境换热器13的一侧流动,为制冷模式,相反,向第二换热器12所在的一侧流动,为制热模式,具体详见对图1的相关描述,这里不做重复限定。
在本公开中,第一换热器11和第二换热器12相并联,设有第一换热器11的管路上设有第一电子膨胀阀16,设有第二换热器12的管路上设有第二电子膨胀阀17,在液热模式时,第一电子膨胀阀16可以处于关闭状态,空调系统与电池温控模块2互不干涉。如图2h所示,第一电子膨胀阀16也可以处于打开状态,第一换热器11接入所述电池温控模块2中(可以直接串联,也可以采用第一三通阀261并联),电池温控模块2的部分热量用于热交换模块1,实现能量的回收和有效利用,尤其适用于环境温度较低,例如空调系统无法满足乘员舱制热的场景下。
根据本公开的第二个方面,还提供一种用电设备,包括上文介绍的电池热管理系统。该用电设备具有上述电池热管理系统的所有有益效果,此处不做过多赘述。该用电设备可以为车辆、储能柜、无人机等,本公开对此不做限定。
以上结合附图详细描述了本公开的优选实施方式,但是,本公开并不限于上述实施方式中的具体细节,在本公开的技术构思范围内,可以对本公开的技术方案进行多种简单变型,这些简单变型均属于本公开的保护范围。
另外需要说明的是,在上述具体实施方式中所描述的各个具体技术特征,在不矛盾的情况下,可以通过任何合适的方式进行组合,为了避免不必要的重复,本公开对各种可能的组合方式不再另行说明。

Claims (30)

  1. 一种电池热管理系统,其特征在于,包括:
    热交换模块(1),所述热交换模块(1)中具有用作冷源的第一换热器(11);
    电池温控模块(2),所述电池温控模块(2)包括多个电池换热部(200),和
    用作热源的加热器(23),其中,
    所述第一换热器(11)和所述加热器(23)可选择性地接入所述电池温控模块(2),并且所述多个电池换热部(200)分别可选择性地接入所述电池温控模块(2)的换热介质循环中。
  2. 根据权利要求1所述的电池热管理系统,其特征在于,所述多个电池换热部(200)包括第一电池换热部(2001)和第二电池换热部(2002),所述电池温控模块(2)包括电池换热器(20),所述电池换热器(20)的多条流道(2000)分为相互独立的第一流道区(201)和第二流道区(202),所述第一流道区(201)形成为所述第一电池换热部(2001),所述第二流道区(202)形成为所述第二电池换热部(2002)。
  3. 根据权利要求1所述的电池热管理系统,其特征在于,所述多个电池换热部(200)包括第一电池换热部(2001)和第二电池换热部(2002),所述电池温控模块(2)包括第一电池换热器(21)和第二电池换热器(22),所述第一电池换热器(21)形成为所述第一电池换热部(2001),所述第二电池换热器(22)形成为所述第二电池换热部(2002)。
  4. 根据权利要求1-3中任一项所述的电池热管理系统,其特征在于,所述多个电池换热部(200)包括第一电池换热部(2001)和第二电池换热部(2002),所述第一电池换热部(2001)和所述第二电池换热部(2002)并联布置。
  5. 根据权利要求1-3中任一项所述的电池热管理系统,其特征在于,所述多个电池换热部(200)包括第一电池换热部(2001)和第二电池换热部(2002),所述第一电池换热部(2001)和所述第二电池换热部(2002)选择性地并联或串联。
  6. 根据权利要求4或5所述的电池热管理系统,其特征在于,所述加热器(23)和所述第一换热器(11)设置在位于分流口(A)上游的主路上,所述第一电池换热部(2001)和所述第二电池换热部(2002)共用所述加热器(23)和所述第一换热器(11)。
  7. 根据权利要求4或5所述的电池热管理系统,其特征在于,所述电池热管理系统包括第一加热器(231)和第二加热器(232),所述第一加热器(231)和所述第二加热器(232)分别设置在对应的并联支路上,以分别对流入所述第一电池换热部(2001)和所述第二电池换热部(2002)的换热介质进行加热。
  8. 根据权利要求4或5所述的电池热管理系统,其特征在于,所述第一电池换热部(2001)和所述第二电池换热部(2002)所在的并联支路上分别设有所述第一换热器(11),所述第一换热器(11)并联连接在对应的并联支路上。
  9. 根据权利要求7或8所述的电池热管理系统,其特征在于,所述电池热管理系统还包括第三加热器(233),所述第三加热器(233)设置在位于分流口(A)上游的主路上,所述第一加热器(231)、所述第二加热器(232)、所述第三加热器(233)分别可选择性地接入所述电池温控模块(2)中。
  10. 根据权利要求1-9中任一项所述的电池热管理系统,其特征在于,所述多个电池换热部(200)包括第一电池换热部(2001)和第二电池换热部(2002),所述第一电池换热部(2001)和所述第二电池换热部(2002)分别对应设置在电池的不同部位。
  11. 根据权利要求1-10中任一项所述的电池热管理系统,其特征在于,所述电池温控模块(2)包括用于驱动换热介质循环流动的动力件(24)、并联连接的第一电池换热器(21)和第二电池换热 器(22),所述第一电池换热器(21)所在的第一并联支路(41)上设有第一阀门(211),所述第二电池换热器(22)所在的第二并联支路(42)上设有第二阀门(221),所述第一换热器(11)和所述加热器(23)设置在位于分流口(A)上游的主路上并通过第一三通阀(261)并联连接。
  12. 根据权利要求11所述的电池热管理系统,其特征在于,所述电池热管理系统具有以下模式中的至少一种:
    第一液冷模式,所述第一三通阀(261)连通所述第一换热器(11)和所述动力件(24),所述第一阀门(211)打开,所述第二阀门(221)关闭,所述动力件(24)驱动换热介质流经所述第一换热器(11)和所述第一电池换热器(21);
    第二液冷模式,所述第一三通阀(261)连通所述第一换热器(11)和所述动力件(24),所述第一阀门(211)关闭,所述第二阀门(221)打开,所述动力件(24)驱动换热介质流经所述第一换热器(11)和所述第二电池换热器(22);
    第三液冷模式,所述第一三通阀(261)连通所述第一换热器(11)和所述动力件(24),所述第一阀门(211)打开,所述第二阀门(221)打开,所述动力件(24)驱动换热介质流经所述第一换热器(11)后分为两路,同时流经所述第一电池换热器(21)和所述第二电池换热器(22);
    第四液冷模式,所述第一三通阀(261)连通所述第一换热器(11)和所述动力件(24),在第一预设时间段内,所述第一阀门(211)打开,所述第二阀门(221)关闭,所述动力件(24)驱动换热介质流经所述第一换热器(11)和所述第一电池换热器(21);在第二预设时间段内,所述第一阀门(211)关闭,所述第二阀门(221)打开,所述动力件(24)驱动换热介质流经所述第一换热器(11)和所述第二电池换热器(22);
    第一液热模式,所述第一三通阀(261)连通所述加热器(23)和所述动力件(24),所述加热器(23)加热,所述第一阀门(211)打开,所述第二阀门(221)关闭,所述动力件(24)驱动换热介质流经所述加热器(23)和所述第一电池换热器(21);
    第二液热模式,所述第一三通阀(261)连通所述加热器(23)和所述动力件(24),所述加热器(23)加热,所述第一阀门(211)关闭,所述第二阀门(221)打开,所述动力件(24)驱动换热介质流经所述加热器(23)和所述第二电池换热器(22);
    第三液热模式,所述第一三通阀(261)连通所述加热器(23)和所述动力件(24),所述加热器(23)加热,所述第一阀门(211)打开,所述第二阀门(221)打开,所述动力件(24)驱动换热介质流经所述加热器(23)后分为两路,同时流经所述第一电池换热器(21)和所述第二电池换热器(22);
    第四液热模式,所述第一三通阀(261)连通所述加热器(23)和所述动力件(24),所述加热器(23)加热,在第一预设时间段内,所述第一阀门(211)打开,所述第二阀门(221)关闭,所述动力件(24)驱动换热介质流经所述加热器(23)和所述第一电池换热器(21);在第二预设时间段内,所述第一阀门(211)关闭,所述第二阀门(221)打开,所述动力件(24)驱动换热介质流经所述加热器(23)和所述第二电池换热器(22);
    均温模式,所述第一三通阀(261)连通所述加热器(23)和所述动力件(24),所述加热器(23)关闭加热,所述第一阀门(211)打开,所述第二阀门(221)打开,所述动力件(24)驱动换热介质在所述第一电池换热器(21)和所述第二电池换热器(22)之间流动;以及
    节能模式,所述第一三通阀(261)连通所述加热器(23)和所述动力件(24),所述加热器(23)关闭加热,所述动力件(24)驱动换热介质在所述第一电池换热器(21)或所述第二电池换热器(22)中流动。
  13. 根据权利要求1-10中任一项所述的电池热管理系统,其特征在于,所述电池温控模块(2)包括用于驱动换热介质循环流动的动力件(24)、并联连接的第一电池换热器(21)和第二电池换热器(22),所述第一电池换热器(21)所在的第一并联支路(41)上设有第一阀门(211),所述第二电池换热器(22)所在的第二并联支路(42)上设有第二阀门(221),所述第一换热器(11)设置在位于分流口(A)上游的主路上并通过第一三通阀(261)可选择性接入,所述电池热管理系统包括第一加热器(231)和第二加热器(232),所述第一加热器(231)通过第二三通阀(262)设置在所述第一并联支路(41)上,所述第二加热器(232)通过第三三通阀(263)设置在所述第二并联支路(42)上。
  14. 根据权利要求13所述的电池热管理系统,其特征在于,所述电池热管理系统具有以下模式中的至少一种:
    第一液冷模式,所述第一三通阀(261)连通所述第一换热器(11)和所述动力件(24),所述第二三通阀(262)短接所述第一加热器(231),所述第三三通阀(263)关闭,所述第一阀门(211)打开,所述第二阀门(221)关闭,所述动力件(24)驱动换热介质流经所述第一换热器(11)和所述第一电池换热器(21);
    第二液冷模式,所述第一三通阀(261)连通所述第一换热器(11)和所述动力件(24),所述第二三通阀(262)关闭,所述第三三通阀(263)短接所述第二加热器(232),所述第一阀门(211)关闭,所述第二阀门(221)打开,所述动力件(24)驱动换热介质流经所述第一换热器(11)和所述第二电池换热器(22);
    第三液冷模式,所述第一三通阀(261)连通所述第一换热器(11)和所述动力件(24),所述第二三通阀(262)短接所述第一加热器(231),所述第三三通阀(263)短接所述第二加热器(232),所述第一阀门(211)打开,所述第二阀门(221)打开,所述动力件(24)驱动换热介质流经所述第一换热器(11)后分为两路,同时流经所述第一电池换热器(21)和所述第二电池换热器(22);
    第四液冷模式,所述第一三通阀(261)连通所述第一换热器(11)和所述动力件(24),在第一预设时间段内,所述第二三通阀(262)短接所述第一加热器(231),所述第三三通阀(263)关闭,所述第一阀门(211)打开,所述第二阀门(221)关闭,所述动力件(24)驱动换热介质流经所述第一换热器(11)和所述第一电池换热器(21);在第二预设时间段内,所述第二三通阀(262)关闭,所述第三三通阀(263)短接所述第二加热器(232),所述第一阀门(211)关闭,所述第二阀门(221)打开,所述动力件(24)驱动换热介质流经所述第一换热器(11)和所述第二电池换热器(22);
    第一液热模式,所述第一三通阀(261)短接所述第一换热器(11),所述第二三通阀(262)指向所述第一加热器(231),所述第三三通阀(263)关闭,所述第一加热器(231)加热,所述第一阀门(211)打开,所述第二阀门(221)关闭,所述动力件(24)驱动换热介质流经所述第一加热器(231)和所述第一电池换热器(21);
    第二液热模式,所述第一三通阀(261)短接所述第一换热器(11),所述第二三通阀(262)关闭,所述第三三通阀(263)指向所述第二加热器(232),所述第二加热器(232)加热,所述第一阀门(211)关闭,所述第二阀门(221)打开,所述动力件(24)驱动换热介质流经所述第二加热器(232)和所述第二电池换热器(22);
    第三液热模式,所述第一三通阀(261)短接所述第一换热器(11),所述第二三通阀(262)指向所述第一加热器(231),所述第三三通阀(263)指向所述第二加热器(232),所述第一加热器(231)和所述第二加热器(232)加热,所述第一阀门(211)打开,所述第二阀门(221)打开,所述动力件(24)驱动换热介质流经所述加热器(23)后分为两路,同时流经所述第一电池换热器(21)和所述第二电池换热器(22);
    第四液热模式,所述第一三通阀(261)短接所述第一换热器(11),在第一预设时间段内,所述第二三通阀(262)指向所述第一加热器(231),所述第三三通阀(263)关闭,所述第一加热器(231)加热,所述第一阀门(211)打开,所述第二阀门(221)关闭,所述动力件(24)驱动换热介质流经所述第一加热器(231)和所述第一电池换热器(21);在第二预设时间段内,所述第一三通阀(261)短接所述第一换热器(11),所述第二三通阀(262)关闭,所述第三三通阀(263)指向所述第二加热器(232),所述第二加热器(232)加热,所述第一阀门(211)关闭,所述第二阀门(221)打开,所述动力件(24)驱动换热介质流经所述第二加热器(232)和所述第二电池换热器(22);
    均温模式,所述第一三通阀(261)短接所述第一换热器(11),所述第二三通阀(262)短接所述第一加热器(231),所述第三三通阀(263)短接所述第二加热器(232),所述第一阀门(211)打开,所述第二阀门(221)打开,所述动力件(24)驱动换热介质在所述第一电池换热器(21)和所述第二电池换热器(22)之间流动;以及
    节能模式,所述第一三通阀(261)短接所述第一换热器(11),所述第二三通阀(262)短接所述第一加热器(231),所述第三三通阀(263)短接所述第二加热器(232),所述动力件(24)驱动换热介质在所述第一电池换热器(21)或所述第二电池换热器(22)中流动。
  15. 根据权利要求1-10中任一项所述的电池热管理系统,其特征在于,所述电池温控模块(2)包括用于驱动换热介质循环流动的动力件(24)、并联连接的第一电池换热器(21)和第二电池换热 器(22),所述第一电池换热器(21)所在的第一并联支路(41)上设有第一阀门(211),所述第二电池换热器(22)所在的第二并联支路(42)上设有第二阀门(221),所述动力件(24)和电池换热器(20)之间设有所述第一换热器(11)和/或所述加热器(23)。
  16. 根据权利要求15所述的电池热管理系统,其特征在于,所述电池热管理系统包括连接所述第一阀门(211)和所述动力件(24)之间的第六阀门(254),
    其中,所述电池热管理系统具有第一模式,所述第一阀门(211)和第六阀门(254)打开,所述动力件(24)驱动换热介质流经所述第一换热器(11)和/或所述加热器(23)后流入所述第一电池换热器(21)。
  17. 根据权利要求15或16所述的电池热管理系统,其特征在于,所述电池热管理系统包括连接所述第二阀门(221)和所述动力件(24)的第二并联回路(52),所述第二并联回路(52)上设有第七阀门(255),所述第一并联支路(41)和所述第二电池换热器(22)之间设有第四阀门(251);
    其中,所述电池热管理系统具有第二模式,所述第四阀门(251)、所述第二阀门(221)和第七阀门(255)打开,所述动力件(24)驱动换热介质流经所述第一换热器(11)和/或所述加热器(23)后流入所述第二电池换热器(22)。
  18. 根据权利要求15-17中任一项所述的电池热管理系统,其特征在于,所述电池热管理系统包括连接所述第一阀门(211)和所述动力件(24)的第一并联回路(51),所述第一并联回路(51)上设有第六阀门(254),连接所述第二阀门(221)和所述动力件(24)的第二并联回路(52)上设有第七阀门(255),所述第一并联支路(41)和所述第二电池换热器(22)之间设有第四阀门(251);
    其中,所述电池热管理系统具有第三模式,所述第一阀门(211)、第六阀门(254)、所述第二阀门(221)、第七阀门(255)和第四阀门(251)打开,所述动力件(24)驱动换热介质流经所述第一换热器(11)和/或所述加热器(23)后分为两路,同时流经所述第一电池换热器(21)和所述第二电池换热器(22)。
  19. 根据权利要求15-18中任一项所述的电池热管理系统,其特征在于,所述电池热管理系统还包括并联连接在所述第一电池换热器(21)和所述第二电池换热器(22)之间的第三并联支路(25),所述第三并联支路(25)上设有第三阀门(252),连接所述第二阀门(221)和所述动力件(24)的第二并联回路(52)上设有第七阀门(255),
    其中,所述电池热管理系统具有第四模式,所述第一阀门(211)、所述第三阀门(252)、所述第二阀门(221)和第七阀门(255)打开,所述动力件(24)驱动换热介质依次流经所述第一换热器(11)和/或所述加热器(23)、所述第一电池换热器(21)和第二电池换热器(22)。
  20. 根据权利要求15-19中任一项所述的电池热管理系统,其特征在于,所述加热器(23)和/或所述第一换热器(11)设置在位于分流口(A)上游的主路上并通过第一三通阀(261)并联连接。
  21. 根据权利要求15-19中任一项所述的电池热管理系统,其特征在于,所述电池热管理系统包括第一加热器(231)和第二加热器(232),所述第一加热器(231)和/或所述第一换热器(11)通过第二三通阀(262)设置在第一并联支路(41)上,所述第二加热器(232)和/或所述第一换热器(11)通过第三三通阀(263)设置在第二并联支路(42)上。
  22. 根据权利要求1-21中任一项所述的电池热管理系统,其特征在于,所述电池温控模块(2)包括用于驱动换热介质循环流动的动力件(24)、并联连接的第一电池换热器(21)和第二电池换热器(22),所述第一电池换热器(21)所在的第一并联支路(41)上设有第一阀门(211),所述第二电池换热器(22)所在的第二并联支路(42)上设有第二阀门(221),所述第一换热器(11)和所述加热器(23)设置在位于分流口(A)上游的主路上并通过第一三通阀(261)并联连接,
    所述电池热管理系统还包括并联连接在所述第一电池换热器(21)和所述第二电池换热器(22)之间的第三并联支路(25),所述第三并联支路(25)上设有第三阀门(252),
    连接所述第一并联支路(41)和所述第三并联支路(25)的管路上设有第四阀门(251),连接所述第二并联支路(42)和所述第三并联支路(25)的管路上设有第五阀门(253),
    连接所述第一阀门(211)和所述动力件(24)之间的第一并联回路(51)上设有第六阀门(254),连接所述第二阀门(221)和所述动力件(24)的第二并联回路(52)上设有第七阀门(255),所述第一并联回路(51)和所述第二并联回路(52)并联布置。
  23. 根据权利要求22所述的电池热管理系统,其特征在于,所述电池热管理系统具有以下模式中的至少一种:
    第一液冷模式,所述第一三通阀(261)连通所述第一换热器(11)和所述动力件(24),所述第一阀门(211)和第六阀门(254)打开,其余阀门关闭,所述动力件(24)驱动换热介质流经所述第一换热器(11)和所述第一电池换热器(21);
    第二液冷模式,所述第一三通阀(261)连通所述第一换热器(11)和所述动力件(24),所述第四阀门(251)、所述第二阀门(221)和第七阀门(255)打开,其余阀门关闭,所述动力件(24)驱动换热介质流经所述第一换热器(11)和所述第二电池换热器(22);
    第三液冷模式,所述第一三通阀(261)连通所述第一换热器(11)和所述动力件(24),所述第一阀门(211)、第六阀门(254)、所述第二阀门(221)、第七阀门(255)和第四阀门(251)打开,其余阀门关闭,所述动力件(24)驱动换热介质流经所述第一换热器(11)后分为两路,同时流经所述第一电池换热器(21)和所述第二电池换热器(22);
    第四液冷模式,所述第一三通阀(261)连通所述第一换热器(11)和所述动力件(24),所述第一阀门(211)、所述第三阀门(252)、所述第二阀门(221)和第七阀门(255)打开,其余阀门关闭,所述动力件(24)驱动换热介质依次流经所述第一换热器(11)、所述第一电池换热器(21)和第二电池换热器(22);
    第五液冷模式,所述第一三通阀(261)连通所述第一换热器(11)和所述动力件(24),在第一预设时间段内,所述第一阀门(211)和第六阀门(254)打开,其余阀门关闭,所述动力件(24)驱动换热介质流经所述第一换热器(11)和所述第一电池换热器(21);在第二预设时间段内,所述第四阀门(251)、所述第二阀门(221)和第七阀门(255)打开,其余阀门关闭,所述动力件(24)驱动换热介质流经所述第一换热器(11)和所述第二电池换热器(22);
    第一液热模式,所述第一三通阀(261)连通所述加热器(23)和所述动力件(24),所述加热器(23)加热,所述第一阀门(211)和第六阀门(254)打开,其余阀门关闭,所述动力件(24)驱动换热介质流经所述加热器(23)和所述第一电池换热器(21);
    第二液热模式,所述第一三通阀(261)连通所述加热器(23)和所述动力件(24),所述加热器(23)加热,所述第四阀门(251)、所述第二阀门(221)和第七阀门(255)打开,其余阀门关闭,所述动力件(24)驱动换热介质流经所述加热器(23)和所述第二电池换热器(22);
    第三液热模式,所述第一三通阀(261)连通所述加热器(23)和所述动力件(24),所述加热器(23)加热,所述第一阀门(211)、第六阀门(254)、所述第二阀门(221)、第七阀门(255)和第四阀门(251)打开,其余阀门关闭,所述动力件(24)驱动换热介质流经所述加热器(23)后分为两路,同时流经所述第一电池换热器(21)和所述第二电池换热器(22);
    第四液热模式,所述第一三通阀(261)连通所述加热器(23)和所述动力件(24),所述加热器(23)加热,所述第一阀门(211)、所述第三阀门(252)、所述第二阀门(221)和第七阀门(255)打开,其余阀门关闭,所述动力件(24)驱动换热介质依次流经所述加热器(23)、所述第一电池换热器(21)和第二电池换热器(22);
    第五液热模式,所述第一三通阀(261)连通所述加热器(23)和所述动力件(24),所述加热器(23)加热,在第一预设时间段内,所述第一阀门(211)和第六阀门(254)打开,其余阀门关闭,所述动力件(24)驱动换热介质流经所述加热器(23)和所述第一电池换热器(21);在第二预设时间段内,所述第四阀门(251)、所述第二阀门(221)和第七阀门(255)打开,其余阀门关闭,所述动力件(24)驱动换热介质流经所述加热器(23)和所述第二电池换热器(22);
    第一均温模式,所述第一三通阀(261)连通所述加热器(23)和所述动力件(24),所述加热器(23)关闭加热,所述第一阀门(211)、第六阀门(254)、所述第二阀门(221)、第七阀门(255)和第四阀门(251)打开,其余阀门关闭,所述动力件(24)驱动换热介质同时流经所述第一电池换热器(21)和所述第二电池换热器(22);
    第二均温模式,所述第一三通阀(261)连通所述加热器(23)和所述动力件(24),所述加热器(23)关闭加热,所述第一阀门(211)、所述第三阀门(252)、所述第二阀门(221)和第七阀门(255) 打开,其余阀门关闭,所述动力件(24)驱动换热介质依次流经所述第一电池换热器(21)和第二电池换热器(22);以及
    节能模式,所述第一三通阀(261)连通所述加热器(23)和所述动力件(24),所述加热器(23)关闭加热,所述动力件(24)驱动换热介质在所述第一电池换热器(21)或所述第二电池换热器(22)中流动。
  24. 根据权利要求1-21中任一项所述的电池热管理系统,其特征在于,所述电池温控模块(2)包括用于驱动换热介质循环流动的动力件(24)、并联连接的第一电池换热器(21)和第二电池换热器(22),所述第一电池换热器(21)所在的第一并联支路(41)上设有第一阀门(211),所述第二电池换热器(22)所在的第二并联支路(42)上设有第二阀门(221),
    所述第一换热器(11)设置在位于分流口(A)上游的主路上并通过第一三通阀(261)可选择性接入,所述电池热管理系统包括第一加热器(231)和第二加热器(232),所述第一加热器(231)通过第二三通阀(262)设置在所述第一并联支路(41)上,所述第二加热器(232)通过第三三通阀(263)设置在所述第二并联支路(42)上,
    所述电池热管理系统还包括并联连接在所述第一电池换热器(21)和所述第二电池换热器(22)之间的第三并联支路(25),所述第三并联支路(25)上设有第三阀门(252),
    连接所述第一并联支路(41)和所述第三并联支路(25)的管路上设有第四阀门(251),连接所述第二并联支路(42)和所述第三并联支路(25)的管路上设有第五阀门(253),
    连接所述第一阀门(211)和所述动力件(24)之间的第一并联回路(51)上设有第六阀门(254),连接所述第二阀门(221)和所述动力件(24)的第二并联回路(52)上设有第七阀门(255),所述第一并联回路(51)和所述第二并联回路(52)并联布置。
  25. 根据权利要求24所述的电池热管理系统,其特征在于,所述电池热管理系统具有以下模式中的至少一种:
    第一液冷模式,所述第一三通阀(261)连通所述第一换热器(11)和所述动力件(24),所述第二三通阀(262)短接所述第一加热器(231),所述第三三通阀(263)关闭,所述第一阀门(211)和第六阀门(254)打开,其余阀门关闭,所述动力件(24)驱动换热介质流经所述第一换热器(11)和所述第一电池换热器(21);
    第二液冷模式,所述第一三通阀(261)连通所述第一换热器(11)和所述动力件(24),所述第二三通阀(262)关闭,所述第三三通阀(263)短接所述第二加热器(232),所述第四阀门(251)、所述第二阀门(221)和第七阀门(255)打开,其余阀门关闭,所述动力件(24)驱动换热介质流经所述第一换热器(11)和所述第二电池换热器(22);
    第三液冷模式,所述第一三通阀(261)连通所述第一换热器(11)和所述动力件(24),所述第二三通阀(262)短接所述第一加热器(231),所述第三三通阀(263)短接所述第二加热器(232),所述第一阀门(211)、第六阀门(254)、所述第二阀门(221)、第七阀门(255)和第四阀门(251)打开,其余阀门关闭,所述动力件(24)驱动换热介质流经所述第一换热器(11)后分为两路,同时流经所述第一电池换热器(21)和所述第二电池换热器(22);
    第四液冷模式,所述第一三通阀(261)连通所述第一换热器(11)和所述动力件(24),所述第二三通阀(262)短接所述第一加热器(231),所述第三三通阀(263)短接所述第二加热器(232),所述第一阀门(211)、所述第三阀门(252)、所述第二阀门(221)和第七阀门(255)打开,其余阀门关闭,所述动力件(24)驱动换热介质依次流经所述第一换热器(11)、所述第一电池换热器(21)和第二电池换热器(22);
    第五液冷模式,所述第一三通阀(261)连通所述第一换热器(11)和所述动力件(24),在第一预设时间段内,所述第二三通阀(262)短接所述第一加热器(231),所述第三三通阀(263)关闭,所述第一阀门(211)和第六阀门(254)打开,其余阀门关闭,所述动力件(24)驱动换热介质流经所述第一换热器(11)和所述第一电池换热器(21);在第二预设时间段内,所述第二三通阀(262)关闭,所述第三三通阀(263)短接所述第二加热器(232),所述第四阀门(251)、所述第二阀门(221)和第七阀门(255)打开,其余阀门关闭,所述动力件(24)驱动换热介质流经所述第一换热器(11)和所述第二电池换热器(22);
    第一液热模式,所述第一三通阀(261)短接所述第一换热器(11),所述第二三通阀(262)指 向所述第一加热器(231),所述第三三通阀(263)关闭,所述第一加热器(231)加热,所述第一阀门(211)和第六阀门(254)打开,其余阀门关闭,所述动力件(24)驱动换热介质流经所述第一加热器(231)和所述第一电池换热器(21);
    第二液热模式,所述第一三通阀(261)短接所述第一换热器(11),所述第二三通阀(262)关闭,所述第三三通阀(263)指向所述第二加热器(232),所述第二加热器(232)加热,所述第四阀门(251)、所述第二阀门(221)和第七阀门(255)打开,其余阀门关闭,所述动力件(24)驱动换热介质流经所述加热器(23)和所述第二电池换热器(22);
    第三液热模式,所述第一三通阀(261)短接所述第一换热器(11),所述第二三通阀(262)指向所述第一加热器(231),所述第三三通阀(263)指向所述第二加热器(232),所述第一加热器(231)和所述第二加热器(232)加热,所述第一阀门(211)、第六阀门(254)、所述第二阀门(221)、第七阀门(255)和第四阀门(251)打开,其余阀门关闭,所述动力件(24)驱动换热介质流分为两路,分别流入所述第一加热器(231)和所述第二加热器(232)进行加热,同时流经所述第一电池换热器(21)和所述第二电池换热器(22);
    第四液热模式,所述第一三通阀(261)短接所述第一换热器(11),所述第二三通阀(262)指向所述第一加热器(231),所述第三三通阀(263)指向所述第二加热器(232),所述第一加热器(231)和所述第二加热器(232)加热,所述第一阀门(211)、所述第三阀门(252)、所述第二阀门(221)和第七阀门(255)打开,其余阀门关闭,所述动力件(24)驱动换热介质依次流经所述第一加热器(231)、所述第一电池换热器(21)、所述第二加热器(232)和所述第二电池换热器(22);
    第五液热模式,所述第一三通阀(261)短接所述第一换热器(11),在第一预设时间段内,所述第二三通阀(262)指向所述第一加热器(231),所述第三三通阀(263)关闭,所述第一加热器(231)加热,所述第一阀门(211)和第六阀门(254)打开,其余阀门关闭,所述动力件(24)驱动换热介质流经所述第一加热器(231)和所述第一电池换热器(21);在第二预设时间段内,所述第二三通阀(262)关闭,所述第三三通阀(263)指向所述第二加热器(232),所述第二加热器(232)加热,所述第四阀门(251)、所述第二阀门(221)和第七阀门(255)打开,其余阀门关闭,所述动力件(24)驱动换热介质流经所述加热器(23)和所述第二电池换热器(22);
    第一均温模式,所述第一三通阀(261)短接所述第一换热器(11),所述第二三通阀(262)短接所述第一加热器(231),所述第三三通阀(263)短接所述第二加热器(232),所述第一阀门(211)、第六阀门(254)、所述第二阀门(221)、第七阀门(255)和第四阀门(251)打开,其余阀门关闭,所述动力件(24)驱动换热介质同时流经所述第一电池换热器(21)和所述第二电池换热器(22);
    第二均温模式,所述第一三通阀(261)短接所述第一换热器(11),所述第二三通阀(262)短接所述第一加热器(231),所述第三三通阀(263)短接所述第二加热器(232),所述第一阀门(211)、所述第三阀门(252)、所述第二阀门(221)和第七阀门(255)打开,其余阀门关闭,所述动力件(24)驱动换热介质依次流经所述第一电池换热器(21)和第二电池换热器(22);以及
    节能模式,所述第一三通阀(261)短接所述第一换热器(11),所述第二三通阀(262)短接所述第一加热器(231),所述第三三通阀(263)短接所述第二加热器(232),所述动力件(24)驱动换热介质在所述第一电池换热器(21)或所述第二电池换热器(22)中流动。
  26. 根据权利要求1-25中任一项所述的电池热管理系统,其特征在于,所述热交换模块(1)包括依次相连接的压缩机(14)、环境换热器(13)、膨胀阀(18)、第一换热器(11)和第二换热器(12),所述压缩机(14)和所述环境换热器(13)之间设有四通换向阀(15)。
  27. 根据权利要求26所述的电池热管理系统,其特征在于,所述第一换热器(11)和所述第二换热器(12)相并联,设有所述第一换热器(11)的管路上设有第一电子膨胀阀(16),设有所述第二换热器(12)的管路上设有第二电子膨胀阀(17)。
  28. 根据权利要求27所述的电池热管理系统,其特征在于,在所述液热模式下,
    所述第一电子膨胀阀(16)关闭,所述电池温控模块(2)和所述热交换模块(1)相互独立;
    所述第一电子膨胀阀(16)打开,所述第一换热器(11)接入所述电池温控模块(2)中,所述电池温控模块(2)的部分热量用于所述热交换模块(1)。
  29. 根据权利要求1-28中任一项所述的电池热管理系统,其特征在于,所述电池热管理系统还包括设于所述多个电池换热部(200)上游或下游的温度检测元件(3),以根据所述温度检测元件(3)获取的信息控制所述多个电池换热部(200)是否工作。
  30. 一种用电设备,其特征在于,包括权利要求1-29中任一项所述的电池热管理系统。
PCT/CN2024/116675 2023-11-28 2024-09-03 电池热管理系统和用电设备 Pending WO2025112751A1 (zh)

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