CN111755777A - Immersed cooling module and low-temperature heating control method and equipment thereof - Google Patents
Immersed cooling module and low-temperature heating control method and equipment thereof Download PDFInfo
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- CN111755777A CN111755777A CN202010592233.0A CN202010592233A CN111755777A CN 111755777 A CN111755777 A CN 111755777A CN 202010592233 A CN202010592233 A CN 202010592233A CN 111755777 A CN111755777 A CN 111755777A
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- 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
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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
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
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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
- H01M10/61—Types of temperature control
- H01M10/615—Heating or keeping warm
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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
- H01M10/61—Types of temperature control
- H01M10/617—Types of temperature control for achieving uniformity or desired distribution of temperature
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- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
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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
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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
- H01M10/637—Control systems characterised by the use of reversible temperature-sensitive devices, e.g. NTC, PTC or bimetal devices; characterised by control of the internal current flowing through the cells, e.g. by switching
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- 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
- H01M10/64—Heating or cooling; Temperature control characterised by the shape of the cells
- H01M10/647—Prismatic or flat cells, e.g. pouch cells
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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
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6554—Rods or plates
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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
- H01M10/65—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
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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
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/657—Means for temperature control structurally associated with the cells by electric or electromagnetic means
- H01M10/6571—Resistive heaters
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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
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
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- 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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Abstract
The invention relates to the field of battery temperature control, and provides a low-temperature heating control method of an immersed cooling module, which comprises the following steps: the method comprises the steps of obtaining a plurality of sampling values of temperature distribution in a module, and respectively controlling the temperature and the mobility of cooling liquid in the module based on the sampling values. The acquisition module is characterized in that a plurality of sampling values of temperature distribution in the module are acquired through a plurality of temperature sensors in the module respectively, and the temperature sensors are arranged on the top of the module and between the battery cores in the module. Meanwhile, the low-temperature heating control equipment of the corresponding immersed cooling module is also provided, and the immersed cooling module is also provided. The implementation scheme provided by the invention is simple to implement, the heating rate is higher, and the energy loss of the whole vehicle is lower.
Description
Technical Field
The invention relates to the field of battery temperature control, in particular to an immersed cooling module, a low-temperature heating control method of the immersed cooling module, low-temperature heating control equipment of the immersed cooling module and an electric automobile.
Background
In order to solve the problem of temperature difference between the generated heat of the lithium battery and the battery core, the research of the immersed module is also increasingly focused by various host factories and battery suppliers. Similar with traditional scheme, the cooling of submergence formula module and low temperature heating all control through the circulation of coolant liquid, specifically mainly are through whole car PTC heating coolant liquid to let the coolant liquid after the heating circulate between each module and heat up, in order to realize the heating to electric core in the module. Such low temperature heating scheme needs heating device and circulating device's simultaneous working, and the structure of system is complicated, and cooling efficiency is lower, but also can not realize the independent control to single module heating, is unfavorable for the temperature regulation and control that becomes more meticulous.
Disclosure of Invention
In view of the above, the present invention is directed to an immersion cooling module and a method and an apparatus for controlling low temperature heating thereof, so as to at least solve the problems of inaccurate control and incapability of independent control in the conventional cooling module.
In a first aspect of the present invention, there is provided a low-temperature heating control method for an immersion cooling module, the control method comprising: the method comprises the steps of obtaining a plurality of sampling values of temperature distribution in a module, and respectively controlling the temperature and the mobility of cooling liquid in the module based on the sampling values.
Preferably, a plurality of sampling values of temperature distribution in the acquisition module are acquired through a plurality of temperature sensors arranged in the module respectively, and the temperature sensors are arranged between the top of the module and the battery cell in the module.
Preferably, the top of module is provided with two temperature sensor, every two electric cores are a set of in the module, are provided with a temperature sensor between every group.
Preferably, the controlling the temperature and the fluidity of the cooling liquid in the module respectively based on the plurality of sampling values comprises: calculating the average value of the plurality of sampling values, and controlling the temperature of the cooling liquid to rise if the average value is lower than a temperature threshold value; and calculating the range of the plurality of sampling values, and controlling the flow of the cooling liquid if the range is greater than a temperature difference threshold value.
Preferably, the controlling the temperature and the fluidity of the cooling liquid in the module respectively based on the plurality of sampling values comprises: selecting a sampling value from the sampling values according to a preset condition, and implementing a preset control strategy based on the relation between the selected sampling values, wherein the control strategy comprises the following steps: the magnitude of the temperature increase and the duration of the flow of the cooling fluid.
Preferably, the control of the temperature rise of the cooling liquid is realized through a PTC heating element inside the module, and the control of the flow of the cooling liquid is realized through a circulating pump.
In a second aspect of the present invention, there is also provided a low temperature heating control apparatus of an immersion cooling module, comprising: at least one processor; a memory coupled to the at least one processor; the storage stores instructions capable of being executed by the at least one processor, and the at least one processor implements the low-temperature heating control method of the immersion cooling module by executing the instructions stored in the storage.
Preferably, the control device is a battery management system.
In a third aspect of the present invention, a submerged cooling module is further provided, where the module includes a coolant, a PTC heating plate, a plurality of temperature sensors, and a plurality of battery cells, the temperature sensors are distributed at different positions of the module, the operating state of the PTC heating plate is related to the temperature collected by the temperature sensors, the flow of the coolant is driven by a circulation pump, the module is connected to a battery management system, and the battery management system is configured to execute the aforementioned low-temperature heating control method for the submerged cooling module.
In a fourth aspect of the invention, an electric vehicle is also provided, and the electric vehicle comprises the immersion type cooling module.
In a fifth aspect of the present invention, a computer-readable storage medium is further provided, where the storage medium has instructions stored therein, and when the storage medium runs on a computer, the instructions cause the computer to execute the aforementioned low-temperature heating control method for an immersion cooling module.
Through the technical scheme provided by the invention, the following beneficial effects are achieved: the low-temperature heating scheme suitable for the immersed cooling module provided by the invention is controlled by the BMS, the scheme is simple to implement, the heating rate is higher, and the energy loss of the whole vehicle is lower.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention.
In the drawings:
fig. 1 is a schematic flow chart illustrating a method for controlling low-temperature heating of an immersion cooling module according to an embodiment of the present invention;
fig. 2 is a schematic diagram illustrating a distribution of temperature sensors in a low-temperature heating control method of an immersion cooling module according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an immersion cooling module according to an embodiment of the present invention.
Description of the reference numerals
1 electric core 2 integrated inlet and outlet end plate 3 PTC heating plate 4 seal cavity
Detailed Description
In addition, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
Fig. 1 is a schematic flow chart of a low-temperature heating control method of an immersion cooling module according to an embodiment of the present invention, as shown in fig. 1. A method of controlling cryogenic heating of an immersion cooling module, the method comprising: the method comprises the steps of obtaining a plurality of sampling values of temperature distribution in a module, and respectively controlling the temperature and the mobility of cooling liquid in the module based on the sampling values.
So, realize the independent control to the electric core temperature in the module. As described in the background art, the conventional module low-temperature heating is realized by heating and circulating cooling liquid, and independent temperature control cannot be performed for individual modules. The temperature of the coolant is almost uniform among the modules, and whether the coolant circulates or not cannot be individually controlled. This embodiment is through obtaining the temperature as judging the condition, temperature and mobility in the independent control module group to reach the purpose to the temperature control of single module.
In an embodiment provided by the present invention, a plurality of sample values of temperature distribution in the module are obtained by a plurality of temperature sensors disposed in the module, respectively, and the temperature sensors are disposed between the top of the module and the battery cells in the module. In order to better obtain the distribution of the temperature field within the module, temperature sensors need to be provided at different locations within the module. Arranging a temperature sensor at the top of the module, namely measuring the temperature at the end point of the temperature conducting path; the temperature sensor is used for measuring the temperature between the battery cores in the module, namely the temperature in the temperature conduction path is measured, so that the temperature of the cooling liquid can be obtained more accurately. Include between the electric core in the module in this embodiment: the number of the cells in each group is selected by a user.
Fig. 2 is a schematic diagram of the distribution of the temperature sensors in the low-temperature heating control method of the immersion cooling module according to an embodiment of the present invention, as shown in fig. 2. In an embodiment provided by the present invention, the temperature sensor is disposed between the top of the module and the battery cell in the module, and includes: the top of module is provided with two temperature sensor, every two electric cores are a set of in the module, are provided with a temperature sensor between each group. 2 NTC temperature sensor are arranged at the module top, and three temperature sensor have been arranged to the inside liquid of module, and its position is respectively: between electric core 2 and electric core 3, between electric core 4 and electric core 5, between electric core 6 and electric core 7, set up the height that highly is electric core center place, temperature sensor does not with electric core direct contact, only detects the temperature of coolant liquid.
In an embodiment of the present invention, the controlling the temperature and the fluidity of the cooling liquid in the module based on the plurality of sampling values respectively includes: calculating the average value of the plurality of sampling values, and controlling the temperature of the cooling liquid to rise if the average value is lower than a temperature threshold value; and calculating the range of the plurality of sampling values, and controlling the flow of the cooling liquid if the range is greater than a temperature difference threshold value. Because be provided with a plurality of temperature sensor in same module, be corresponding to the temperature value of a plurality of collections. When the average value of a plurality of sampling values is lower than the temperature threshold value, the fact that the temperature of the battery core is too low and needs to be heated can be judged, and then the temperature rise of the cooling liquid is controlled. When the range of the plurality of sampling values is larger than the temperature difference threshold value, the temperature difference of different positions of the battery cell can be judged to be too large, temperature balancing needs to be carried out, and then the flow of the cooling liquid is controlled. Through the analysis of the mathematical statistics values of the plurality of sampling values, the temperature distribution condition of the battery cell can be more comprehensively reflected, and then corresponding temperature control measures are implemented. When the battery temperature is lower than the BMS preset value, a low-temperature heating strategy is started, the PTC is heated to the set temperature and is kept, the cooling liquid in the battery module is continuously heated, the circulating pump does not work, the battery module is fully filled with the cooling liquid but does not flow, and the battery can be continuously heated after the temperature of the fluid is raised. Compare through flow heating battery behind the whole car PTC heating coolant liquid in traditional scheme-the heating method that this patent provided can the inside temperature rise rate of every module of independent control, can effectively control the electric core difference in temperature between the diaphragm group through the inside PTC temperature of the different modules of control.
In an embodiment of the present invention, the controlling the temperature and the fluidity of the cooling liquid in the module based on the plurality of sampling values respectively includes: selecting a sampling value from the sampling values according to a preset condition, and implementing a preset control strategy based on the relation between the selected sampling values, wherein the control strategy comprises the following steps: the magnitude of the temperature increase and the duration of the flow of the cooling fluid. Here, the sample value is selected from the plurality of sample values according to a preset condition, that is, a preset control strategy is implemented according to a preset relationship between some two sample values. For example: in the low-temperature heating process, comparing two electric core surface temperature values in the same module, when the two electric core surface temperature values in the same module are equal to 5 ℃, the BMS feeds back a signal to the whole vehicle, the VCU starts a circulating pump at the moment, the cooling liquid starts to flow between the electric cores for 3min, and the temperature of heating parts of each module is kept unchanged; or only comparing temperature values of adjacent parts between the electric cores, when the difference temperature between the maximum temperature and the minimum temperature obtained by three temperature sensors in the same module sealed cavity is 5 ℃, the BMS feeds back a signal to the whole vehicle, the VCU starts a circulating pump at the moment, the cooling liquid starts to flow between the electric cores for 1min, and the temperature of the heating parts of each module is kept unchanged; or selecting the maximum value in the temperature values at the adjacent positions between the battery cores to be compared with the surface temperature, and when the difference between the maximum value of the three temperature sensors in the sealed cavity of the same module and the minimum value of the battery core surface temperature sensor is 5 ℃, keeping the highest temperature of the heating part at the moment, and continuously heating the cooling liquid; when the temperature difference is less than 5 ℃, the temperature of the heating part is gradually reduced as the temperature difference is reduced.
In the foregoing embodiment, the control of the temperature rise of the coolant is performed by the PTC heating elements inside the module, and the control of the flow of the coolant is performed by the circulation pump. The PTC heating member sets up in the inside of module, and the heat of its production conducts to electric core through the coolant liquid. The PTC heating element is preferably a waterproof PTC heating plate, since there is a coolant in the module. The circulating pump is driven by electric energy to provide circulating energy of the cooling liquid in the module, and can be arranged inside the module or utilize an existing external circulating pump.
In one embodiment of the present invention, a low temperature heating control apparatus of an immersion cooling module includes: at least one processor; a memory coupled to the at least one processor; the storage stores instructions capable of being executed by the at least one processor, and the at least one processor implements the low-temperature heating control method of the immersion cooling module by executing the instructions stored in the storage. The control module or processor herein has the functions of numerical calculation and logical operation, and it has at least a central processing unit CPU, a random access memory RAM, a read only memory ROM, various I/O ports and interrupt systems, etc. of data processing capability. Here, the control module or the control device may be, for example, a single chip, a chip, or a processor, which is commonly used hardware, and in a more commonly used case, the control module or the control device is a processor of an intelligent terminal or a PC. Further, the control device is a battery management system. Here, the device may be an existing controller in a PMS (battery pack management system) or a BMS (battery management system), which implements a function that is a sub-function of the controller. The specific form of the device is a piece of software code in a hardware runtime environment that relies on the controller in an existing PMS.
Fig. 3 is a schematic structural diagram of an immersion cooling module according to an embodiment of the present invention, as shown in fig. 3. In an embodiment provided by the present invention, an immersion cooling module is further provided, where the module includes a coolant, a PTC heating plate, a plurality of temperature sensors, and a plurality of electrical cores, the temperature sensors are distributed at different positions of the module, the operating state of the PTC heating plate is related to the temperature collected by the temperature sensors, the coolant is disposed in a sealed cavity, and flows of the coolant are driven by a circulation pump, the module is connected to a battery management system, and the battery management system is configured to execute the aforementioned low-temperature heating control method for the immersion cooling module.
In an embodiment provided by the invention, the electric automobile comprises the immersion type cooling module. Adopt aforementioned submergence formula cooling module in electric automobile, have the accurate advantage of controlling the temperature and controlling the temperature alone to every module.
The embodiment of the invention provides a method for respectively and independently controlling heating and flowing, aiming at the problem of low-temperature heating of the existing immersed cooling module. The method enables the immersed cooling module to effectively control the temperature difference between the batteries in the module and between the batteries in the module by adopting the embodiment of the invention, and simultaneously improves the heating rate.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
In a typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.
The memory may include forms of volatile memory in a computer readable medium, Random Access Memory (RAM) and/or non-volatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). The memory is an example of a computer-readable medium.
Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus 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 apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element.
The above are merely examples of the present application and are not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (10)
1. A low-temperature heating control method of an immersed cooling module is characterized by comprising the following steps:
acquiring a plurality of sampling values of temperature distribution in the module;
and respectively controlling the temperature and the fluidity of the cooling liquid in the module based on the plurality of sampling values.
2. The control method according to claim 1, wherein the plurality of samples of the temperature distribution within the module are obtained by a plurality of temperature sensors disposed within the module, respectively, the temperature sensors being disposed between the top of the module and the cells within the module.
3. The control method according to claim 2, wherein two temperature sensors are arranged on the top of the module, each two battery cells in the module are in one group, and one temperature sensor is arranged between each group.
4. The control method of claim 1, wherein separately controlling the temperature and the fluidity of the cooling fluid in the die set based on the plurality of sampled values comprises:
calculating the average value of the plurality of sampling values, and controlling the temperature of the cooling liquid to rise if the average value is lower than a temperature threshold value;
and calculating the range of the plurality of sampling values, and controlling the flow of the cooling liquid if the range is greater than a temperature difference threshold value.
5. The control method of claim 3, wherein separately controlling the temperature and the fluidity of the cooling fluid in the die set based on the plurality of sampled values comprises:
selecting a sampling value from the sampling values according to a preset condition, and implementing a preset control strategy based on the relation between the selected sampling values, wherein the control strategy comprises the following steps: the magnitude of the temperature increase and the duration of the flow of the cooling fluid.
6. The control method according to claim 4 or 5, wherein controlling the temperature of the coolant to be raised is performed by a PTC heating element inside the module, and controlling the flow of the coolant is performed by a circulation pump.
7. A low temperature heating control apparatus of an immersion cooling module, comprising:
at least one processor;
a memory coupled to the at least one processor;
wherein the memory stores instructions executable by the at least one processor, and the at least one processor implements the method for controlling low temperature heating of an immersion cooling module of any one of claims 1 to 6 by executing the instructions stored in the memory.
8. The control apparatus according to claim 7, wherein the control apparatus is a battery management system.
9. An immersion cooling module, comprising a cooling liquid, a PTC heating plate, a plurality of temperature sensors and a plurality of electric cores, wherein the temperature sensors are distributed at different positions of the module, the operating state of the PTC heating plate is related to the temperature collected by the temperature sensors, and the flow of the cooling liquid is driven by a circulating pump, wherein the module is connected with a battery management system, and the battery management system is configured to execute the low-temperature heating control method of the immersion cooling module according to any one of claims 1 to 6.
10. An electric vehicle comprising the submerged cooling module of claim 9.
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| CN202010592233.0A CN111755777A (en) | 2020-06-24 | 2020-06-24 | Immersed cooling module and low-temperature heating control method and equipment thereof |
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| CN202010592233.0A CN111755777A (en) | 2020-06-24 | 2020-06-24 | Immersed cooling module and low-temperature heating control method and equipment thereof |
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Cited By (6)
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| CN112103597A (en) * | 2020-10-14 | 2020-12-18 | 湖北亿纬动力有限公司 | Battery cell module and battery pack |
| CN112993440A (en) * | 2020-12-15 | 2021-06-18 | 鹤山市世拓电子科技有限公司 | Flame-proof battery pack |
| CN114142128A (en) * | 2021-11-30 | 2022-03-04 | 蜂巢能源科技有限公司 | Battery module for power device, temperature control strategy and power device |
| CN116598658A (en) * | 2023-05-05 | 2023-08-15 | 南方电网调峰调频(广东)储能科技有限公司 | Hierarchical pipeline structure of immersed liquid-cooled energy storage system and flow equalizing method |
| CN116632420A (en) * | 2023-05-12 | 2023-08-22 | 珠海科创储能科技有限公司 | Temperature control method of immersed energy storage system |
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