CN116231172A - Battery heat management method, device, equipment and storage medium - Google Patents

Battery heat management method, device, equipment and storage medium Download PDF

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Publication number
CN116231172A
CN116231172A CN202211689771.7A CN202211689771A CN116231172A CN 116231172 A CN116231172 A CN 116231172A CN 202211689771 A CN202211689771 A CN 202211689771A CN 116231172 A CN116231172 A CN 116231172A
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Prior art keywords
battery
temperature
preset
temperature data
thermal management
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CN202211689771.7A
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CN116231172B (en
Inventor
都治军
张毅鸿
官健
王茂森
郝园园
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Chongqing Gengchen Energy Technology Co.,Ltd.
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Chongqing Three Gorges Times Energy Technology Co ltd
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/63—Control systems
    • H01M10/633—Control systems characterised by algorithms, flow charts, software details or the like
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/4285—Testing apparatus
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/615—Heating or keeping warm
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6554—Rods or plates
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6567—Liquids
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Automation & Control Theory (AREA)
  • Secondary Cells (AREA)

Abstract

The application discloses a battery heat management method, a device, equipment and a storage medium, which belong to the field of control, and the method comprises the following steps: when the self-inspection is qualified, acquiring temperature data of a single body in the battery, wherein a liquid cooling plate is arranged on the large side surface of the battery; judging the current mode; and performing heat management on a preset battery based on the current mode and the temperature data of the single body. In this application, improve the structure of battery, set up the liquid cooling board at the big side of battery, can acquire a plurality of temperature data, these temperature data correspond the temperature condition that has reflected each region, in addition, according to the present different modes of battery and a plurality of free temperature data to the battery carry out comprehensive thermal management, subdivided management scheme, improved the temperature management effect when carrying out temperature management to the battery promptly.

Description

Battery heat management method, device, equipment and storage medium
Technical Field
The present disclosure relates to the field of control, and in particular, to a method, an apparatus, a device, and a storage medium for battery thermal management.
Background
At present, the battery is cooled by air cooling or bottom liquid cooling. Wherein, the bottom liquid cooling mode is to set up a monoblock liquid cooling board in order to cool down the battery in group battery bottom. However, such cooling method can not cool the actually overheated region, the obtained battery temperature is single temperature data, and the single temperature data can not reflect the temperatures of different battery regions, so that the cooling effect is poor when the battery is cooled, that is, the problem of poor temperature management effect when the battery is subjected to temperature management in the prior art exists.
The foregoing is merely provided to facilitate an understanding of the principles of the present application and is not admitted to be prior art.
Disclosure of Invention
The invention mainly aims to provide a battery heat management method, which aims to solve the problem of poor temperature management effect when the battery is subjected to temperature management in the prior art.
In order to achieve the above object, the present application provides a battery heat management method, applied to a battery heat management device, the method comprising:
when the self-inspection is qualified, acquiring temperature data of a single body in the battery, wherein a liquid cooling plate is arranged on the large side surface of the battery;
judging the current mode;
and performing heat management on a preset battery based on the current mode and the temperature data of the single body.
In one possible embodiment of the present application, the step of performing heat management on the preset battery based on the current mode and the battery temperature data includes:
if the current mode is a battery heating mode, judging whether the battery meets a preset heating condition or not based on the temperature data of the single body;
if the battery meets the heating condition, determining whether a heating fault exists, wherein the heating fault comprises at least one of unadsorbed charging relay, disconnected battery loop, heating relay fault and battery fault;
and when the heating fault is determined to be absent, controlling to start the heating relay to heat the battery until the temperature data of the single body meets the preset heating closing condition.
In one possible embodiment of the present application, the step of determining whether the battery meets the heating condition based on the temperature data of the monomer includes:
and if the minimum monomer temperature data is smaller than a preset third temperature and the maximum monomer temperature data is smaller than a preset fourth temperature, judging that the battery meets the heating condition, wherein the third temperature is smaller than the first temperature, the first temperature is smaller than the fourth temperature, and the fourth temperature is smaller than the second temperature.
In one possible embodiment of the present application, the step of performing heat management on the preset battery based on the current mode and the temperature data of the single body includes:
if the current mode is a charging mode, acquiring a preset first starting temperature, a preset first closing temperature and a preset first water inlet opening temperature;
and when the temperature data of the single body is larger than the first starting temperature, if the average temperature data of the battery is larger than the first starting temperature, controlling to start a preset cooling device, and when the water inlet temperature of the battery is larger than the first water inlet starting temperature, controlling the cooling device to refrigerate the battery until a preset first closing cooling condition is met, wherein the first closing cooling condition comprises at least one of that the average temperature data of the battery is smaller than the first starting temperature or that the temperature data of the single body is smaller than the first closing temperature.
In one possible embodiment of the present application, the step of performing heat management on the preset battery based on the current mode and the temperature data of the single body includes:
if the current mode is a discharge mode, acquiring a preset second starting temperature, a preset second closing temperature and a preset second water inlet opening temperature;
and when the temperature data of the single body is larger than the second starting temperature, controlling to start the cooling device, and when the water inlet temperature of the battery is larger than the second water inlet starting temperature, controlling the cooling device to refrigerate the battery until a preset second closing cooling condition is met, wherein the second closing cooling condition comprises at least one of that the average temperature data of the battery is smaller than the second starting temperature or the temperature data of the single body is smaller than the second closing temperature.
In one possible embodiment of the present application, after the step of controlling to turn on the preset cooling device, the method includes:
when the water inlet temperature of the battery is smaller than the second water inlet opening temperature, if the water inlet temperature is smaller than the preset water inlet circulation temperature, the battery is controlled to perform water inlet self-circulation so as to heat the battery.
In one possible implementation manner of the present application, when the self-checking is qualified, temperature data of a single body in the battery is obtained, where before the step of providing the liquid cooling plate on the large side of the battery, the method includes:
and carrying out self-checking on the preset module, wherein the self-checking module comprises a preset temperature detection module, a preset temperature detection module and a preset water cooling unit module.
In addition, in order to achieve the above object, the present application further provides a battery thermal management device, including:
the acquisition module is used for acquiring temperature data of a single body in the battery when the self-inspection is qualified, wherein a liquid cooling plate is arranged on the large side surface of the battery;
the judging module is used for judging the current mode;
and the heat management module is used for carrying out heat management on the preset battery based on the current mode and the temperature data of the single body.
In addition, to achieve the above object, the present application further provides a battery thermal management device, which is a physical node device, including: the battery thermal management system comprises a memory, a processor and a battery thermal management program which is stored in the memory and can run on the processor, wherein the processor executes the steps of the battery thermal management program to realize the battery thermal management method.
In addition, in order to achieve the above object, the present application further provides a storage medium having stored thereon a program for implementing the battery thermal management method, the battery thermal management program implementing the steps of the battery thermal management method when executed by a processor.
Compared with the problem of poor temperature management effect when temperature management is performed on a battery in the prior art, in the method, the device, the equipment and the storage medium, when self-checking is qualified, temperature data of a single body in the battery are obtained, wherein a liquid cooling plate is arranged on the large side surface of the battery; judging the current mode; and performing heat management on a preset battery based on the current mode and the temperature data of the single body. In this application, improve the structure of battery, set up the liquid cooling board at the big side of battery, can acquire a plurality of temperature data, these temperature data correspond the temperature condition that has reflected each region, in addition, according to the present different modes of battery and a plurality of free temperature data to the battery carry out comprehensive thermal management, subdivided management scheme, improved the temperature management effect when carrying out temperature management to the battery promptly.
Drawings
FIG. 1 is a flow chart of an embodiment of a battery thermal management method of the present application;
FIG. 2 is a schematic diagram of a battery thermal management device in an embodiment of a battery thermal management method according to the present application;
fig. 3 is a schematic device structure diagram of a hardware operating environment according to an embodiment of the battery thermal management method of the present application.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, the following description of the embodiments accompanied with the accompanying drawings will be given in detail. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
An embodiment of the present application provides a battery thermal management method, in a first embodiment of the battery thermal management method of the present application, referring to fig. 1, applied to a battery thermal management device, the method includes:
step S10, acquiring temperature data of a single body in a battery when self-inspection is qualified, wherein a liquid cooling plate is arranged on the large side surface of the battery;
step S20, judging the current mode;
and step S30, performing heat management on the preset battery based on the current mode and the temperature data of the single body.
The embodiment aims at an application scene that at present, the battery is cooled by air cooling or bottom liquid cooling. Wherein, the bottom liquid cooling mode is to set up a monoblock liquid cooling board in order to cool down the battery in group battery bottom. However, such cooling method can not cool the actually overheated region, the obtained battery temperature is single temperature data, and the single temperature data can not reflect the temperatures of different battery regions, so that the cooling effect is poor when the battery is cooled, that is, the problem of poor temperature management effect when the battery is subjected to temperature management in the prior art exists.
The present embodiment aims at: the temperature management effect when the temperature of the battery is managed is improved.
In the present embodiment, the battery heat management method is applied to the battery heat management apparatus.
In the present embodiment of the present invention, in the present embodiment,
the method comprises the following specific steps:
step S10, acquiring temperature data of a single body in a battery when self-inspection is qualified, wherein a liquid cooling plate is arranged on the large side surface of the battery;
step S10, when the self-inspection is qualified, acquiring temperature data of a single body in the battery, wherein before the step of arranging a liquid cooling plate on the large side surface of the battery, the method comprises the following steps:
step S01, performing self-checking on a preset module, wherein the self-checking module comprises a preset temperature detection module, a preset temperature detection module and a preset water cooling unit module.
Step S20, judging the current mode;
and step S30, performing heat management on the preset battery based on the current mode and the temperature data of the single body.
Step S30, a step of performing heat management on a preset battery based on the current mode and the battery temperature data, including steps S31-S33:
step S31, if the current mode is a battery heating mode, judging whether the battery meets a preset heating condition or not based on the temperature data of the single body;
the step S31 of determining whether the battery meets the heating condition based on the temperature data of the monomer includes a step A1 of:
and step A1, judging that the battery meets the heating condition if the minimum monomer temperature data is smaller than a preset third temperature and the maximum monomer temperature data is smaller than a preset fourth temperature, wherein the third temperature is smaller than the first temperature, the first temperature is smaller than the fourth temperature, and the fourth temperature is smaller than the second temperature.
Step S32, if the battery meets the heating condition, determining whether a heating fault exists, wherein the heating fault comprises at least one of unadsorbed charging relay, disconnected battery loop, heating relay fault and battery fault;
and step S33, when the heating fault is determined to be absent, controlling to start the heating relay to heat the battery until the temperature data of the single body meets the preset heating closing condition.
Step S30, a step of performing heat management on the preset battery based on the current mode and the temperature data of the single body, including steps S34-S35:
step S34, if the current mode is a charging mode, acquiring a preset first starting temperature, a preset first closing temperature and a preset first water inlet opening temperature;
and S35, when the temperature data of the single body is larger than the first starting temperature, if the average temperature data of the battery is larger than the first starting temperature, controlling to start a preset cooling device, and when the water inlet temperature of the battery is larger than the first water inlet starting temperature, controlling the cooling device to refrigerate the battery until a preset first closing cooling condition is met, wherein the first closing cooling condition comprises at least one of that the average temperature data of the battery is smaller than the first starting temperature or that the temperature data of the single body is smaller than the first closing temperature.
Step S30, a step of performing heat management on a preset battery based on the current mode and the temperature data of the single body, including steps S36-S37:
step S36, if the current mode is a discharge mode, acquiring a preset second starting temperature, a preset second closing temperature and a preset second water inlet opening temperature;
and S37, when the temperature data of the single body is larger than the second starting temperature, if the average temperature data of the battery is larger than the second starting temperature, controlling to start the cooling device, and when the water inlet temperature of the battery is larger than the second water inlet starting temperature, controlling the cooling device to refrigerate the battery until a preset second closing cooling condition is met, wherein the second closing cooling condition comprises at least one of that the average temperature data of the battery is smaller than the second starting temperature or that the temperature data of the single body is smaller than the second closing temperature.
In step S37, after the step of controlling the cooling device to be turned on, the step of controlling the cooling device includes step B1:
and B1, when the water inlet temperature of the battery is smaller than the second water inlet opening temperature, if the water inlet temperature is smaller than the preset water inlet circulation temperature, controlling the battery to perform water inlet self-circulation so as to heat the battery.
Compared with the problem of poor temperature management effect when temperature management is performed on a battery in the prior art, in the method, the device, the equipment and the storage medium, when self-checking is qualified, temperature data of a single body in the battery are obtained, wherein a liquid cooling plate is arranged on the large side surface of the battery; judging the current mode; and performing heat management on a preset battery based on the current mode and the temperature data of the single body. In this application, improve the structure of battery, set up the liquid cooling board at the big side of battery, can acquire a plurality of temperature data, these temperature data correspond the temperature condition that has reflected each region, in addition, according to the present different modes of battery and a plurality of free temperature data to the battery carry out comprehensive thermal management, subdivided management scheme, improved the temperature management effect when carrying out temperature management to the battery promptly.
Example two
Further, based on all the above embodiments, another embodiment of the present application is provided, in which, as in fig. 2, there is provided a battery thermal management device, the device comprising:
the acquisition module is used for acquiring temperature data of a single body in the battery when the self-inspection is qualified, wherein a liquid cooling plate is arranged on the large side surface of the battery;
the judging module is used for judging the current mode;
and the heat management module is used for carrying out heat management on the preset battery based on the current mode and the temperature data of the single body.
In one possible embodiment of the present application, the step of performing heat management on a preset battery based on the current mode and the battery temperature data, the apparatus includes:
the first judging module is used for judging whether the battery meets preset heating conditions or not based on the temperature data of the single body if the current mode is a battery heating mode;
the first determining module is used for determining whether a heating fault exists if the battery meets the heating condition, wherein the heating fault comprises at least one of unadsorbed charging relay, disconnected battery loop, heating relay fault and battery fault;
and the heating module is used for controlling to start the heating relay to heat the battery when the heating fault is determined to be absent, until the temperature data of the single body meets the preset heating closing condition.
In one possible embodiment of the present application, the heating condition is that the minimum monomer temperature data in the temperature data of the monomers is greater than a preset first temperature, and the maximum monomer temperature data in the temperature data of the monomers is greater than a preset second temperature, and the step of determining whether the battery meets the heating condition based on the temperature data of the monomers includes:
and the second judging module is used for judging that the battery meets the heating condition if the minimum monomer temperature data is smaller than a preset third temperature and the maximum monomer temperature data is smaller than a preset fourth temperature, wherein the third temperature is smaller than the first temperature, the first temperature is smaller than the fourth temperature, and the fourth temperature is smaller than the second temperature.
In one possible embodiment of the present application, the step of performing heat management on a preset battery based on the current mode and the temperature data of the single body, the apparatus includes:
the first acquisition module is used for acquiring a preset first starting temperature, a preset first closing temperature and a preset first water inlet opening temperature if the current mode is a charging mode;
and the first control module is used for controlling to start a preset cooling device when the temperature data of the single battery is larger than the first starting temperature, and controlling the cooling device to refrigerate the battery until a preset first closing cooling condition is met when the water inlet temperature of the battery is larger than the first water inlet starting temperature, wherein the first closing cooling condition comprises at least one of that the average temperature data of the battery is smaller than the first starting temperature or that the temperature data of the single battery is smaller than the first closing temperature.
In one possible embodiment of the present application, the step of performing heat management on a preset battery based on the current mode and the temperature data of the single body, the apparatus includes:
the second acquisition module is used for acquiring a preset second starting temperature, a preset second closing temperature and a preset second water inlet opening temperature if the current mode is a discharging mode;
and the second control module is used for controlling to start the cooling device when the temperature data of the single battery is larger than the second starting temperature, and controlling the cooling device to refrigerate the battery until a preset second closing cooling condition is met when the water inlet temperature of the battery is larger than the second water inlet starting temperature, wherein the second closing cooling condition comprises at least one of that the average temperature data of the battery is smaller than the second starting temperature or the temperature data of the single battery is smaller than the second closing temperature.
In a possible embodiment of the present application, after the step of controlling the opening of the cooling device, the device comprises:
and the third control module is used for controlling the battery to perform water inlet self-circulation so as to heat the battery if the water inlet temperature is smaller than the preset water inlet circulation temperature when the water inlet temperature of the battery is smaller than the second water inlet opening temperature.
In one possible implementation manner of the present application, the acquiring temperature data of the single body in the battery when the self-test is qualified, where before the step of providing the liquid cooling plate on the large side of the battery, the device includes:
the self-checking module is used for carrying out self-checking on the preset module, wherein the self-checking module comprises a preset temperature detection module, a preset temperature detection module and a preset water cooling unit module.
The specific implementation manner of the battery heat management device is basically the same as that of each embodiment of the battery heat management method, and is not repeated here.
Example III
Further, based on all the above embodiments, another embodiment of the present application is provided, in which a battery thermal management device is provided, the battery thermal management device being a physical node device, the battery thermal management device comprising: a memory, a processor, and a program stored on the memory for implementing the battery thermal management method, the memory for storing the program for implementing the battery thermal management method; the processor is configured to execute a program for implementing the battery thermal management method to implement the steps of the battery thermal management method in the above embodiment.
Referring to fig. 3, fig. 3 is a schematic device structure diagram of a hardware running environment according to an embodiment of the present application.
As shown in fig. 3, the battery thermal management device may include: a processor 1001, such as a CPU, memory 1005, and a communication bus 1002. Wherein a communication bus 1002 is used to enable connected communication between the processor 1001 and a memory 1005. The memory 1005 may be a high-speed RAM memory or a stable memory (non-volatile memory), such as a disk memory. The memory 1005 may also optionally be a storage device separate from the processor 1001 described above.
In one possible embodiment of the present application, the battery thermal management device may further include a network interface, an audio circuit, a display, a connection, a sensor, an input module, etc., where the network interface may optionally include a standard wired interface, a wireless interface (e.g., WI-FI interface, bluetooth interface), the input module may optionally include a Keyboard (Keyboard), a system soft Keyboard, voice input, wireless receive input, etc.
It will be appreciated by those skilled in the art that the battery thermal management device structure does not constitute a limitation of the battery thermal management device and may include more or fewer components than shown, or may combine certain components, or may have a different arrangement of components.
An operating system, an information exchange module, and a battery thermal management program may be included in a memory as a computer storage medium. The operating system is a program that manages and controls the battery thermal management device hardware and software resources, supporting the operation of the battery thermal management program and other software and/or programs. The information exchange module is used for realizing communication among all components in the memory and communication with other hardware and software in the management system.
In the battery thermal management device, the processor is configured to execute a battery thermal management program stored in the memory, and implement the above-mentioned battery thermal management step.
The specific implementation manner of the battery thermal management device is basically the same as the above embodiments of the battery thermal management method, and will not be repeated here.
Example IV
The present application provides a storage medium, and the storage medium stores one or more programs, which may also be executed by one or more processors to implement the steps of the battery thermal management method in the above embodiments.
The specific implementation manner of the storage medium is basically the same as that of each embodiment of the battery heat management method, and is not repeated here.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The foregoing embodiment numbers of the present application are merely for describing, and do not represent advantages or disadvantages of the embodiments.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (such as ROM or RAM, magnetic disk, optical disk) as described above, including several instructions for causing a terminal device (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method described in the embodiments of the present application.
The foregoing description is only of the preferred embodiments of the present application, and is not intended to limit the scope of the claims, and all equivalent structures or equivalent processes using the descriptions and drawings of the present application, or direct or indirect application in other related technical fields are included in the scope of the claims of the present application.

Claims (10)

1. A battery thermal management method, comprising:
when the self-inspection is qualified, acquiring temperature data of a single body in the battery, wherein a liquid cooling plate is arranged on the large side surface of the battery;
judging the current mode;
and performing heat management on a preset battery based on the current mode and the temperature data of the single body.
2. The battery thermal management method according to claim 1, wherein the step of thermally managing a preset battery based on the current mode and the battery temperature data comprises:
if the current mode is a battery heating mode, judging whether the battery meets a preset heating condition or not based on the temperature data of the single body;
if the battery meets the heating condition, determining whether a heating fault exists, wherein the heating fault comprises at least one of unadsorbed charging relay, disconnected battery loop, heating relay fault and battery fault;
and when the heating fault is determined to be absent, controlling to start the heating relay to heat the battery until the temperature data of the single body meets the preset heating closing condition.
3. The battery heat management method according to claim 2, wherein the off-heating condition is that a minimum cell temperature data among temperature data of the cells is greater than a preset first temperature and a maximum cell temperature data among temperature data of the cells is greater than a preset second temperature, the step of judging whether the battery satisfies the heating condition based on the temperature data of the cells, comprising:
and if the minimum monomer temperature data is smaller than a preset third temperature and the maximum monomer temperature data is smaller than a preset fourth temperature, judging that the battery meets the heating condition, wherein the third temperature is smaller than the first temperature, the first temperature is smaller than the fourth temperature, and the fourth temperature is smaller than the second temperature.
4. The battery thermal management method according to claim 1, wherein the step of thermally managing a preset battery based on the current mode and the temperature data of the cells comprises:
if the current mode is a charging mode, acquiring a preset first starting temperature, a preset first closing temperature and a preset first water inlet opening temperature;
and when the temperature data of the single body is larger than the first starting temperature, if the average temperature data of the battery is larger than the first starting temperature, controlling to start a preset cooling device, and when the water inlet temperature of the battery is larger than the first water inlet starting temperature, controlling the cooling device to refrigerate the battery until a preset first closing cooling condition is met, wherein the first closing cooling condition comprises at least one of that the average temperature data of the battery is smaller than the first starting temperature or that the temperature data of the single body is smaller than the first closing temperature.
5. The battery thermal management method according to claim 4, wherein the step of thermally managing a preset battery based on the current mode and the temperature data of the cells comprises:
if the current mode is a discharge mode, acquiring a preset second starting temperature, a preset second closing temperature and a preset second water inlet opening temperature;
and when the temperature data of the single body is larger than the second starting temperature, controlling to start the cooling device, and when the water inlet temperature of the battery is larger than the second water inlet starting temperature, controlling the cooling device to refrigerate the battery until a preset second closing cooling condition is met, wherein the second closing cooling condition comprises at least one of that the average temperature data of the battery is smaller than the second starting temperature or the temperature data of the single body is smaller than the second closing temperature.
6. The battery thermal management method according to claim 5, wherein after the step of controlling the cooling device to be turned on, comprising:
when the water inlet temperature of the battery is smaller than the second water inlet opening temperature, if the water inlet temperature is smaller than the preset water inlet circulation temperature, the battery is controlled to perform water inlet self-circulation so as to heat the battery.
7. The method for managing heat of a battery according to claim 1, wherein the step of acquiring temperature data of a cell in the battery when the self-test is acceptable, wherein the step of providing a liquid cooling plate on the large side of the battery is preceded by the step of:
and carrying out self-checking on the preset module, wherein the self-checking module comprises a preset temperature detection module, a preset temperature detection module and a preset water cooling unit module.
8. A battery thermal management device, comprising:
the acquisition module is used for acquiring temperature data of a single body in the battery when the self-inspection is qualified, wherein a liquid cooling plate is arranged on the large side surface of the battery;
the judging module is used for judging the current mode;
and the heat management module is used for carrying out heat management on the preset battery based on the current mode and the temperature data of the single body.
9. A battery thermal management device comprising a memory, a processor and a battery thermal management program stored on the memory and executable on the processor, the processor executing the steps of the battery thermal management program to implement the battery thermal management method of any one of claims 1 to 7.
10. A storage medium having stored thereon a program for implementing a battery thermal management method, the program for implementing the battery thermal management method being executed by a processor to implement the steps of the battery thermal management method according to any one of claims 1 to 7.
CN202211689771.7A 2022-12-27 2022-12-27 Battery heat management method, device, equipment and storage medium Active CN116231172B (en)

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