CN112864488A - Energy storage liquid cooling system device and control method thereof - Google Patents
Energy storage liquid cooling system device and control method thereofDownload PDFInfo
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- CN112864488A CN112864488ACN202110035587.XACN202110035587ACN112864488ACN 112864488 ACN112864488 ACN 112864488ACN 202110035587 ACN202110035587 ACN 202110035587ACN 112864488 ACN112864488 ACN 112864488A
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- 238000001816coolingMethods0.000titleclaimsabstractdescription293
- 238000004146energy storageMethods0.000titleclaimsabstractdescription111
- 239000007788liquidSubstances0.000titleclaimsabstractdescription89
- 238000000034methodMethods0.000titleclaimsabstractdescription32
- 239000000110cooling liquidSubstances0.000claimsabstractdescription28
- 238000001514detection methodMethods0.000claimsabstractdescription28
- 238000010438heat treatmentMethods0.000claimsabstractdescription23
- XLYOFNOQVPJJNP-UHFFFAOYSA-NwaterSubstancesOXLYOFNOQVPJJNP-UHFFFAOYSA-N0.000claimsdescription215
- 238000007599dischargingMethods0.000claimsdescription18
- 238000010583slow coolingMethods0.000claimsdescription12
- 238000005057refrigerationMethods0.000claimsdescription6
- 230000010354integrationEffects0.000abstractdescription6
- 230000001276controlling effectEffects0.000description11
- 230000001105regulatory effectEffects0.000description11
- HBBGRARXTFLTSG-UHFFFAOYSA-NLithium ionChemical compound[Li+]HBBGRARXTFLTSG-UHFFFAOYSA-N0.000description6
- 229910001416lithium ionInorganic materials0.000description6
- 239000007921spraySubstances0.000description5
- 238000005265energy consumptionMethods0.000description4
- 238000010586diagramMethods0.000description3
- 238000004321preservationMethods0.000description3
- 125000004122cyclic groupChemical group0.000description2
- 230000017525heat dissipationEffects0.000description2
- 238000012544monitoring processMethods0.000description2
- 239000012782phase change materialSubstances0.000description2
- 230000002159abnormal effectEffects0.000description1
- 230000032683agingEffects0.000description1
- 230000009286beneficial effectEffects0.000description1
- 230000033228biological regulationEffects0.000description1
- 230000007547defectEffects0.000description1
- 230000003028elevating effectEffects0.000description1
- 238000004134energy conservationMethods0.000description1
- 238000005516engineering processMethods0.000description1
- 230000020169heat generationEffects0.000description1
- 238000006467substitution reactionMethods0.000description1
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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
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
- 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
- H01M10/63—Control systems
- H01M10/633—Control systems characterised by algorithms, flow charts, software details or the like
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6554—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
- H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
- 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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- General Physics & Mathematics (AREA)
- Secondary Cells (AREA)
Abstract
Translated fromChinese
Description
Technical Field
The invention belongs to the technical field of liquid cooling, relates to an energy storage liquid cooling system device, and particularly relates to an energy storage liquid cooling system device and a control method thereof.
Background
Among various energy storage technologies, lithium ion batteries are becoming more and more of an option for industrial and on-board energy storage devices due to their high energy density characteristics and high commercialization prospects. However, as the capacity and the power of the energy storage battery system gradually increase, the heat generation amount thereof also increases, thereby causing the energy storage battery system to have large temperature rise and high temperature in the working process.
Because the comprehensive performance of the lithium ion battery is sensitive to the working temperature, the power performance of the battery can be reduced when the battery works at a high temperature for a long time, the aging of the battery is accelerated, and the cycle life of an energy storage system is influenced. At present, the common cooling mode of the energy storage system is mainly a natural cooling or forced air cooling mode, but the heat dissipation power is limited, and the heat dissipation requirement of a high-capacity and high-power energy storage battery system cannot be met.
CN109193076A discloses a water circulative cooling system for handling lithium ion battery organizes abnormal temperature rise, including group battery temperature monitoring early warning part, circulating water cooling group battery part and circulating water temperature monitoring and cooling part. In the processes of charging, discharging, storing and transporting of the lithium ion battery, a safer charging and discharging environment is provided for the charging and discharging process of the lithium ion battery, and early warning is timely carried out before the thermal runaway of the charging and discharging of the battery. According to the invention, the temperature of the battery pack is regulated by detecting the temperature of circulating water and the temperature of the battery pack, but the influence of battery parameters is not considered, so that regulation errors exist.
CN109888432A discloses lithium ion battery thermal management system who contains spray cooling and phase change material heat-retaining, including battery box and battery, still include controller, temperature sensor, heat pipe, heat preservation room and spray room, temperature sensor sets up in the battery box, heat pipe one end and battery contact, just heat pipe forked two sections stretch into heat preservation room and spray room respectively, be equipped with in the spray room and spray the mechanism, be equipped with container, phase change material and elevating system in the heat preservation room. However, the structure of the invention is complex, and only the temperature of the battery is detected, so that the adjustment error is easily caused.
The existing liquid cooling system devices all have the problems of complex structure, poor adjusting performance and the like, so that the problems that how to ensure the liquid cooling system devices have the characteristics of small adjusting error, energy conservation and the like under the conditions of simple structure, simple operation and the like become the problems which need to be solved urgently at present.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide an energy storage liquid cooling system device and a control method thereof, which adjust the temperature and the flow of a liquid cooling module by detecting the battery parameters of the energy storage module and the temperature and the flow of the liquid cooling module, accurately adjust the temperature of the energy storage module in different using states, and have the characteristics of high integration level, high flexibility and the like.
In order to achieve the purpose, the invention adopts the following technical scheme:
in a first aspect, the invention provides an energy storage liquid cooling system device, which comprises a cabinet, a detection module and a control module, wherein the cabinet is internally provided with the liquid cooling module and the energy storage module, the liquid cooling module cools or heats the energy storage module, the detection module is arranged on the liquid cooling module and the energy storage module, and the detection module is used for detecting the temperature and the flow of cooling liquid in the liquid cooling module and working parameters of the energy storage module; the control module is respectively electrically connected with the liquid cooling module and the detection module, and the control module is used for receiving a feedback signal of the detection module and controlling the temperature and the flow of cooling liquid in the liquid cooling module in a feedback mode.
According to the invention, the working parameters of the energy storage module are detected, the liquid cooling module is regulated through the feedback of the control module, the temperature and the flow of the cooling liquid in the liquid cooling module are regulated in real time, the temperature of the energy storage module is accurately regulated and controlled under the condition of low energy consumption, and the liquid cooling module has the functions of heating and cooling so as to adapt to various working states of the energy storage module, and has the characteristics of high integration level, high flexibility, simple structure and the like.
As a preferred technical solution of the present invention, the energy storage module includes at least one battery disposed side by side.
Preferably, the liquid cooling module includes water-cooling machine and the water-cooling board subassembly of cyclic connection, the water-cooling board subassembly includes inlet manifold, goes out liquid house steward and at least one water-cooling board, the water-cooling board independently inserts respectively through the adapter inlet manifold with go out the liquid house steward, the water-cooling board is used for cooling and heating the battery.
It should be noted that, in the present invention, the cooling and heating operations of the battery are both adjusted by the temperature of the cooling liquid in the water cooling plate, the type of the cooling liquid in the present invention is not specifically required and limited, and those skilled in the art can reasonably select the type of the cooling liquid according to the actual operation, for example, the cooling liquid is water.
Preferably, the water cooling plates are connected in parallel, the water cooling plates correspond to the batteries one to one, cooling liquid in the liquid inlet header pipe enters the water cooling plates respectively, and the cooling liquid after heat exchange is collected to the liquid outlet header pipe and returns to the water cooling machine.
According to the invention, each battery corresponds to one water cooling plate, and the water cooling plates are communicated in parallel through pipelines to form a plurality of independent liquid cooling loops, so that the flow of each branch is reasonably distributed, and the better temperature consistency among the battery modules is realized.
It should be noted that the arrangement of the water cooling plate and the battery is not specifically required or limited, and those skilled in the art may reasonably set the position of the water cooling plate according to the arrangement of the battery, for example, the water cooling plate is disposed closely to the battery.
Preferably, the detection module comprises an inlet temperature sensor, an inlet flow sensor and an outlet temperature sensor, wherein the inlet temperature sensor and the inlet flow sensor are both arranged at the inlet end of the water cooling plate assembly, and the outlet temperature sensor is arranged at the outlet end of the water cooling plate assembly.
Preferably, the detection module further comprises a battery parameter detector disposed on the energy storage module, and the battery parameter detector is configured to detect an operating parameter of the energy storage module.
It should be noted that the operating parameters described in the present invention include parameters such as voltage, current, SOC, temperature, and charge-discharge rate of the energy storage module.
Preferably, the battery parameter detector is located within the cabinet.
As a preferred technical scheme of the invention, the control module is respectively and independently electrically connected with the water cooler, the inlet temperature sensor, the inlet flow sensor and the battery parameter detector; the control module receives feedback signals of an inlet temperature sensor, an inlet flow sensor and a battery parameter detector respectively and controls the refrigeration modes of the water cooling machine in a feedback mode, wherein the refrigeration modes comprise a quick cooling mode, an inter-cooling mode, a slow cooling mode and a heating mode.
The system device effectively controls the temperature of the battery by controlling the working mode of the water cooler, has a heating function, and can heat the cooling liquid in a low-temperature environment, so that the low-temperature heating of the battery is realized, and the charge and discharge performance of the battery in the low-temperature environment is improved.
In a second aspect, the present invention provides a method for controlling temperature by using the energy storage liquid cooling system apparatus of the first aspect, where the method for controlling temperature includes:
the detection module detects the temperature and the charging and discharging multiplying power of the energy storage module, detects the temperature and the flow of cooling liquid in the liquid cooling module, sends a feedback signal to the control module, and the control module controls the temperature and the flow of the liquid cooling module in a feedback mode to control the temperature of the energy storage module.
As a preferred technical solution of the present invention, the control method specifically includes the steps of:
s100, detecting the temperature and the charging and discharging multiplying power of an energy storage module by a battery parameter detector, respectively detecting the temperature and the flow of an inlet of a water cooling plate assembly by an inlet temperature sensor and an inlet flow sensor, and entering S200;
s200, the control module receives feedback signals of an inlet temperature sensor, an inlet flow sensor and a battery parameter detector, judges whether the temperature of the energy storage module is greater than or equal to a first battery temperature threshold value and whether the charging and discharging multiplying power is smaller than a first multiplying power threshold value, starts a first processing mode if the judgment result is yes, and enters a step S201; if the judgment result is negative, the step S300 is entered;
s201, the control module judges whether the temperature of the inlet of the water cooling plate assembly is equal to a first water temperature threshold value or not, and if the judgment result is yes, the step S203 is carried out; if the judgment result is negative, the step S202 is entered;
s202, the control module controls the water cooling machine in a feedback mode, the temperature and the flow entering the inlet of the water cooling plate assembly are adjusted, and the water cooling machine enters a quick cooling mode and enters S203;
s203, after the water cooling machine executes the quick cooling mode for a certain time, entering S204;
s204, the control module judges whether the temperature of the energy storage module is greater than or equal to a second battery temperature threshold value, and if the judgment result is yes, the step S205 is executed; if the judgment result is negative, the step S200 is entered;
s205, stopping working of the energy storage module, and closing a system device;
s300, the control module judges whether the temperature of the energy storage module is greater than or equal to a third battery temperature threshold value, if so, a second processing mode is started, and the step S301 is executed; if the judgment result is negative, the step S400 is entered;
s301, the control module judges whether the charging and discharging multiplying power of the energy storage module is larger than or equal to a second multiplying power threshold value, and if the judging result is yes, the step S302 is executed; if the judgment result is no, the step S305 is entered;
s302, the control module judges whether the temperature of the inlet of the water cooling plate assembly is equal to a first water temperature threshold value or not, and if the judgment result is yes, the step S303 is executed; if the judgment result is negative, the step S304 is entered;
s303, a water cooling machine executes a quick cooling mode;
s304, the control module controls the water cooling machine in a feedback mode, the temperature and the flow entering the inlet of the water cooling plate assembly are adjusted, and the water cooling machine enters a quick cooling mode and enters S303;
s305, the control module judges whether the temperature of the inlet of the water cooling plate assembly is equal to a second water temperature threshold value or not, and if the judgment result is yes, the step S306 is executed; if the judgment result is negative, the step S307 is entered;
s306, a water cooling machine executes a quick cooling mode;
s307, the control module controls the water cooling machine in a feedback mode, the temperature and the flow entering the inlet of the water cooling plate assembly are adjusted, and the water cooling machine enters a quick cooling mode and enters S306;
s400, the control module judges whether the temperature of the energy storage module is greater than or equal to a fourth battery temperature threshold value, if so, a third processing mode is started, and the step S401 is executed; if the judgment result is negative, the step S500 is carried out;
s401, the control module judges whether the charging and discharging multiplying power of the energy storage module is larger than or equal to a second multiplying power threshold value, if so, the step S402 is executed; if the judgment result is negative, the step S405 is executed;
s402, the control module judges whether the temperature of the inlet of the water cooling plate assembly is equal to a second water temperature threshold value or not, and if the judgment result is yes, the step S403 is executed; if the judgment result is negative, the step S404 is entered;
s403, the water cooler executes an inter-cooling mode;
s404, the control module controls the water cooling machine in a feedback mode, the temperature and the flow entering the inlet of the water cooling plate assembly are adjusted, the water cooling machine enters an intercooling mode, and the water cooling machine enters S403;
s405, the control module judges whether the temperature of the inlet of the water cooling plate assembly is equal to a third water temperature threshold value or not, and if the judgment result is yes, the step S406 is executed; if the judgment result is negative, the step S407 is entered;
s406, the water cooling machine executes a slow cooling mode;
s407, the control module controls the water cooling machine in a feedback mode, the temperature and the flow entering the inlet of the water cooling plate assembly are adjusted, and the water cooling machine enters a slow cooling mode and enters S406;
and S500, the control module feeds back and controls the energy storage module to charge, controls the water cooling machine, adjusts the temperature and the flow entering the inlet of the water cooling plate assembly, and enables the water cooling machine to enter a heating mode.
As a preferable technical solution of the present invention, in the rapid cooling mode, the temperature of the inlet of the water-cooled plate assembly is a first water temperature threshold, and the flow rate of the inlet of the water-cooled plate assembly is a first flow rate threshold.
Preferably, in the rapid cooling mode, the temperature of the inlet of the water-cooling plate assembly is a second water temperature threshold, and the flow rate of the inlet of the water-cooling plate assembly is a first flow rate threshold.
Preferably, in the intercooling mode, the temperature of the inlet of the water-cooling plate assembly is a second water temperature threshold, and the flow rate of the inlet of the water-cooling plate assembly is a second flow rate threshold.
Preferably, in the slow cooling mode, the temperature of the inlet of the water-cooling plate assembly is a third water temperature threshold, and the flow rate of the inlet of the water-cooling plate assembly is a second flow rate threshold.
Preferably, in the heating mode, the temperature of the inlet of the water-cooling plate assembly is a fourth water temperature threshold, and the flow rate of the inlet of the water-cooling plate assembly is a first flow rate threshold.
In a preferred embodiment of the present invention, the first water temperature threshold is 14 to 16 ℃, for example, the first water temperature threshold is 14.0 ℃, 14.5 ℃, 15.0 ℃, 15.5 ℃ or 16.0 ℃.
Preferably, the second water temperature threshold is 19 to 21 ℃, for example, the second water temperature threshold is 19.0 ℃, 19.5 ℃, 20.0 ℃, 20.5 ℃ or 21.0 ℃.
Preferably, the third water temperature threshold is 24-26 ℃, for example, the third water temperature threshold is 24.0 ℃, 24.5 ℃, 25.0 ℃, 25.5 ℃ or 26 ℃.
Preferably, the fourth water temperature threshold is 45-47 ℃, for example, the fourth water temperature threshold is 45.0 ℃, 45.5 ℃, 46.0 ℃, 46.5 ℃ or 47.0 ℃.
In a preferred embodiment of the present invention, the first battery temperature threshold is 54 to 56 ℃, for example, the first battery temperature threshold is 54.0 ℃, 54.5 ℃, 55.0 ℃, 55.5 ℃ or 56.0 ℃.
Preferably, the second battery temperature threshold is 59-61 ℃, for example, the second battery temperature threshold is 59.0 ℃, 59.5 ℃, 60.0 ℃, 60.5 ℃ or 61.0 ℃.
Preferably, the third battery temperature threshold is 44-46 ℃, for example, the third battery temperature threshold is 44.0 ℃, 44.5 ℃, 45.0 ℃, 45.5 ℃ or 46.0 ℃.
Preferably, the fourth battery temperature threshold is 2 to 4 ℃, for example, the fourth battery temperature threshold is 2.0 ℃, 2.5 ℃, 3.0 ℃, 3.5 ℃ or 4.0 ℃.
In a preferred embodiment of the present invention, the first magnification threshold is 1.5 to 2.0, for example, the first magnification threshold is 1.5, 1.6, 1.7, 1.8, 1.9 or 2.0.
Preferably, the second power threshold is 0.5-1.0, for example, the second power threshold is 0.5, 0.6, 0.7, 0.8, 0.9 or 1.0.
Preferably, in step S203, the certain time is 25-35 min, for example, 25min, 26min, 27min, 28min, 29min, 30min, 31min, 32min, 33min, 34min or 35 min.
As a preferred embodiment of the present invention, the first flow threshold is 90-100% of the maximum flow entering the water cooling plate assembly, for example, the first flow threshold is 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99% or 100% of the maximum flow entering the water cooling plate assembly.
Preferably, the second flow threshold is 40-60% of the maximum flow into the water-cooled plate assembly, for example, the second flow threshold is 40%, 42%, 44%, 46%, 48%, 50%, 52%, 54%, 56%, 58% or 60% of the maximum flow into the water-cooled plate assembly.
The recitation of numerical ranges herein includes not only the above-recited numerical values, but also any numerical values between non-recited numerical ranges, and is not intended to be exhaustive or to limit the invention to the precise numerical values encompassed within the range for brevity and clarity.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the working parameters of the energy storage module are detected, the liquid cooling module is regulated through the feedback of the control module, the temperature and the flow of the cooling liquid in the liquid cooling module are regulated in real time, the temperature of the energy storage module is accurately regulated and controlled under the condition of low energy consumption, and the liquid cooling module has the functions of heating and cooling so as to adapt to various working states of the energy storage module, and has the characteristics of high integration level, high flexibility, simple structure and the like.
Drawings
Fig. 1 is a schematic structural diagram of an energy storage liquid cooling system apparatus according to an embodiment of the present invention;
fig. 2 is a flowchart of a method for controlling temperature using a cold storage liquid cooling system according to an embodiment of the present invention;
FIG. 3 is a flow diagram of a method of a first processing mode provided in one embodiment of the present invention;
FIG. 4 is a flow diagram of a method of a second processing mode provided in one embodiment of the present invention;
FIG. 5 is a flowchart of a method of a third processing mode provided in an embodiment of the present invention.
1-a cabinet; 2-an energy storage module; 3-a control module; 4-a water cooling plate assembly; 5-a water cooling machine; 6-battery parameter detector.
Detailed Description
It is to be understood that in the description of the present invention, the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be taken as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
It should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "disposed," "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The technical solution of the present invention is further explained by the following embodiments.
In a specific embodiment, the invention provides an energy storage liquid cooling system device, as shown in fig. 1, the system device includes a cabinet 1, a detection module and acontrol module 3, wherein a liquid cooling module and anenergy storage module 2 are arranged in the cabinet 1, the liquid cooling module cools or heats theenergy storage module 2, the detection module is arranged on the liquid cooling module and theenergy storage module 2, and the detection module is used for detecting the temperature and flow of cooling liquid in the liquid cooling module and working parameters of theenergy storage module 2; thecontrol module 3 is respectively electrically connected with the liquid cooling module and the detection module, and thecontrol module 3 is used for receiving a feedback signal of the detection module and controlling the temperature and the flow of cooling liquid in the liquid cooling module in a feedback mode.
According to the invention, the working parameters of theenergy storage module 2 are detected, the liquid cooling module is regulated through the feedback of thecontrol module 3, the temperature and the flow of the cooling liquid in the liquid cooling module are regulated in real time, the temperature of theenergy storage module 2 is accurately regulated and controlled under the condition of low energy consumption, and the liquid cooling module has the functions of heating and cooling so as to adapt to various working states of theenergy storage module 2, and has the characteristics of high integration level, high flexibility, simple structure and the like.
Further,energy storage module 2 includes the battery that at least one set up side by side, and the liquid cooling module includes water-cooled generator 5 and the water-cooledplate subassembly 4 of cyclic connection, and water-cooledplate subassembly 4 includes inlet manifold, liquid outlet manifold and at least one water-cooled plate, and the water-cooled plate passes through the adapter and independently inserts inlet manifold and liquid outlet manifold respectively, and the water-cooled plate is used for cooling down and heating the battery, parallel connection between each water-cooled plate, water-cooled plate and battery one-to-one, the cooling liquid gets into each water-cooled plate respectively in the inlet manifold, and the cooling liquid after the heat transfer collects to liquid outlet manifold to return the water-cooled generator, optionally, the cooling liquid in the water-cooled.
In the invention, each battery corresponds to one water cooling plate, and the water cooling plates are communicated in parallel through a pipeline system device to form a plurality of independent liquid cooling loops, so that the flow of each branch is reasonably distributed, and the better temperature consistency among the battery modules is realized.
Further, the detection module comprises an inlet temperature sensor, an inlet flow sensor and an outlet temperature sensor, wherein the inlet temperature sensor and the inlet flow sensor are arranged at the inlet end of the water coolingplate assembly 4, and the outlet temperature sensor is arranged at the outlet end of the water coolingplate assembly 4.
Further, the detection module further includes abattery parameter detector 6 disposed on theenergy storage module 2, and thebattery parameter detector 6 is configured to detect operating parameters of theenergy storage module 2, for example, parameters of theenergy storage module 2 such as voltage, current, SOC, temperature, and charging/discharging rate. Thebattery parameter detector 6 is located within the cabinet 1.
Further, thecontrol module 3 is respectively and independently electrically connected with the water cooler 5, the inlet temperature sensor, the inlet flow sensor and thebattery parameter detector 6; thecontrol module 3 receives feedback signals of the inlet temperature sensor, the inlet flow sensor and thebattery parameter detector 6 respectively and controls the refrigeration modes of the water cooling machine 5 in a feedback mode, wherein the refrigeration modes comprise a quick cooling mode, an inter-cooling mode, a slow cooling mode and a heating mode. The battery temperature is effectively controlled by controlling the working mode of the water cooler 5, and meanwhile, the liquid cooling system device also has a heating function and can heat the cooling liquid in a low-temperature environment, so that the low-temperature heating of the battery is realized, and the charging and discharging performance of the battery in the low-temperature environment is improved.
In another embodiment, the present invention provides a method for controlling temperature by using the above energy storage liquid cooling system apparatus, as shown in fig. 2, fig. 3, fig. 4 and fig. 5, the method specifically includes the following steps:
s100, detecting the temperature and the charge-discharge multiplying power of theenergy storage module 2 by using abattery parameter detector 6, respectively detecting the temperature and the flow of an inlet of a watercooling plate assembly 4 by using an inlet temperature sensor and an inlet flow sensor, and entering S200;
s200, thecontrol module 3 receives feedback signals of an inlet temperature sensor, an inlet flow sensor and abattery parameter detector 6, judges whether the temperature of theenergy storage module 2 is greater than or equal to a first battery temperature threshold value and whether the charge-discharge multiplying power is smaller than a first multiplying power threshold value, starts a first processing mode if the judgment result is yes, and enters a step S201; if the judgment result is negative, the step S300 is entered;
s201, thecontrol module 3 judges whether the temperature of the inlet of the water coolingplate assembly 4 is equal to a first water temperature threshold value, and if the judgment result is yes, the step S203 is executed; if the judgment result is negative, the step S202 is entered;
s202, thecontrol module 3 controls the water cooling machine 5 in a feedback mode, the temperature and the flow entering the inlet of the water coolingplate assembly 4 are adjusted, and the water cooling machine 5 enters a quick cooling mode and enters S203;
s203, after the water cooling machine 5 executes the quick cooling mode for a certain time, entering S204;
s204, thecontrol module 3 judges whether the temperature of theenergy storage module 2 is greater than or equal to a second battery temperature threshold value, and if the judgment result is yes, the step S205 is executed; if the judgment result is negative, the step S200 is entered;
s205, stopping theenergy storage module 2, and closing the system device;
s300, thecontrol module 3 judges whether the temperature of theenergy storage module 2 is greater than or equal to a third battery temperature threshold value, if so, a second processing mode is started, and the step S301 is executed; if the judgment result is negative, the step S400 is entered;
s301, thecontrol module 3 judges whether the charging and discharging multiplying power of theenergy storage module 2 is larger than or equal to a second multiplying power threshold value, and if the judging result is yes, the step S302 is executed; if the judgment result is no, the step S305 is entered;
s302, thecontrol module 3 judges whether the temperature of the inlet of the water coolingplate assembly 4 is equal to a first water temperature threshold value or not, and if the judgment result is yes, the step S303 is executed; if the judgment result is negative, the step S304 is entered;
s303, the water cooling machine 5 executes a quick cooling mode;
s304, thecontrol module 3 controls the water cooling machine 5 in a feedback mode, the temperature and the flow entering the inlet of the water coolingplate assembly 4 are adjusted, and the water cooling machine 5 enters a quick cooling mode and enters S303;
s305, thecontrol module 3 judges whether the temperature of the inlet of the water coolingplate assembly 4 is equal to a second water temperature threshold value, and if the judgment result is yes, the step S306 is executed; if the judgment result is negative, the step S307 is entered;
s306, the water cooling machine 5 executes a quick cooling mode;
s307, thecontrol module 3 controls the water cooling machine 5 in a feedback mode, the temperature and the flow entering the inlet of the water coolingplate assembly 4 are adjusted, and the water cooling machine 5 enters a rapid cooling mode and enters S306;
s400, thecontrol module 3 judges whether the temperature of theenergy storage module 2 is greater than or equal to a fourth battery temperature threshold value, if so, a third processing mode is started, and the step S401 is entered; if the judgment result is negative, the step S500 is carried out;
s401, thecontrol module 3 judges whether the charging and discharging multiplying power of theenergy storage module 2 is larger than or equal to a second multiplying power threshold value, if so, the step S402 is executed; if the judgment result is negative, the step S405 is executed;
s402, thecontrol module 3 judges whether the temperature of the inlet of the water coolingplate assembly 4 is equal to a second water temperature threshold value or not, and if the judgment result is yes, the step S403 is executed; if the judgment result is negative, the step S404 is entered;
s403, the water cooler 5 executes an inter-cooling mode;
s404, thecontrol module 3 controls the water cooling machine 5 in a feedback mode, the temperature and the flow entering the inlet of the water coolingplate assembly 4 are adjusted, the water cooling machine 5 enters an intercooling mode, and the operation is S403;
s405, thecontrol module 3 judges whether the temperature of the inlet of the water coolingplate assembly 4 is equal to a third water temperature threshold value, and if the judgment result is yes, the step S406 is executed; if the judgment result is negative, the step S407 is entered;
s406, the water cooling machine 5 executes a slow cooling mode;
s407, thecontrol module 3 controls the water cooling machine 5 in a feedback mode, the temperature and the flow entering the inlet of the water coolingplate assembly 4 are adjusted, and the water cooling machine 5 enters a slow cooling mode and enters S406;
s500, thecontrol module 3 controls theenergy storage module 2 to charge in a feedback mode, controls the water cooling machine 5 to adjust the temperature and the flow entering the inlet of the water coolingplate assembly 4, and enables the water cooling machine 5 to enter a heating mode.
In the rapid cooling mode, the temperature at the inlet of the water coolingplate assembly 4 is a first water temperature threshold, and the flow rate at the inlet of the water coolingplate assembly 4 is a first flow rate threshold. In the fast cooling mode, the temperature of the inlet of the water coolingplate assembly 4 is a second water temperature threshold, and the flow rate of the inlet of the water coolingplate assembly 4 is a first flow rate threshold. In the intercooling mode, the temperature of the inlet of the water coolingplate assembly 4 is a second water temperature threshold, and the flow rate of the inlet of the water coolingplate assembly 4 is a second flow rate threshold. In the slow cooling mode, the temperature at the inlet of the water coolingplate assembly 4 is a third water temperature threshold, and the flow rate at the inlet of the water coolingplate assembly 4 is a second flow rate threshold. In the heating mode, the temperature of the inlet of the water coolingplate assembly 4 is a fourth water temperature threshold value, and the flow rate of the inlet of the water coolingplate assembly 4 is a first flow rate threshold value.
Furthermore, the first water temperature threshold value is 14-16 ℃, the second water temperature threshold value is 19-21 ℃, the third water temperature threshold value is 24-26 ℃, and the fourth water temperature threshold value is 29-31 ℃.
Furthermore, the first battery temperature threshold is 54-56 ℃, the second battery temperature threshold is 59-61 ℃, the third battery temperature threshold is 44-46 ℃, and the fourth battery temperature threshold is 2-4 ℃.
Furthermore, the first multiplying factor threshold value is 1.5-2.0, and the second multiplying factor threshold value is 0.5-1.0. In step S203, the certain time is 25-35 min.
Further, the first flow threshold is 90-100% of the maximum flow entering the water coolingplate assembly 4, and the second flow threshold is 40-60% of the maximum flow entering the water coolingplate assembly 4.
Example 1
The embodiment provides an energy storage liquid cooling system device, which is based on the energy storage liquid cooling system device in a specific embodiment, wherein theenergy storage module 2 comprises ten batteries, the water coolingplate assembly 4 comprises ten water cooling plates, and the batteries are in one-to-one correspondence with the water cooling plates.
The embodiment also provides a method for controlling the temperature of theenergy storage module 2 by using the energy storage liquid cooling system device, which is based on the control method provided in a specific embodiment, wherein the first water temperature threshold is 15 ℃, the second water temperature threshold is 20 ℃, the third water temperature threshold is 25 ℃, and the fourth water temperature threshold is 46 ℃. The first battery temperature threshold is 55 ℃, the second battery temperature threshold is 60 ℃, the third battery temperature threshold is 45 ℃ and the fourth battery temperature threshold is 3 ℃.
The first magnification threshold is 2 and the second magnification threshold is 1. In step S203, the predetermined time is 30 min. The first flow threshold is 100% of the maximum flow into the water-cooledplate assembly 4 and the second flow threshold is 50% of the maximum flow into the water-cooledplate assembly 4.
Example 2
The embodiment provides an energy storage liquid cooling system device, which is based on the energy storage liquid cooling system device in a specific embodiment, wherein theenergy storage module 2 comprises six batteries, the water coolingplate assembly 4 comprises six water cooling plates, and the batteries are in one-to-one correspondence with the water cooling plates.
The embodiment also provides a method for controlling the temperature of theenergy storage module 2 by using the energy storage liquid cooling system device, which is based on the control method provided in a specific embodiment, wherein the first water temperature threshold is 14 ℃, the second water temperature threshold is 19 ℃, the third water temperature threshold is 24 ℃, and the fourth water temperature threshold is 45 ℃. The first battery temperature threshold is 54 ℃, the second battery temperature threshold is 59 ℃, the third battery temperature threshold is 44 ℃, and the fourth battery temperature threshold is 2 ℃.
The first magnification threshold is 1.5 and the second magnification threshold is 0.5. In step S203, the predetermined time is 25 min. The first flow threshold is 95% of the maximum flow into the water-cooledplate assembly 4 and the second flow threshold is 40% of the maximum flow into the water-cooledplate assembly 4.
Example 3
The embodiment provides an energy storage liquid cooling system device, which is based on the energy storage liquid cooling system device in a specific embodiment, wherein theenergy storage module 2 comprises ten batteries, the water coolingplate assembly 4 comprises ten water cooling plates, and the batteries are in one-to-one correspondence with the water cooling plates.
The embodiment also provides a method for controlling the temperature of theenergy storage module 2 by using the energy storage liquid cooling system device, which is based on the control method provided in a specific embodiment, wherein the first water temperature threshold is 16 ℃, the second water temperature threshold is 21 ℃, the third water temperature threshold is 26 ℃, and the fourth water temperature threshold is 47 ℃. The first battery temperature threshold is 56 ℃, the second battery temperature threshold is 61 ℃, the third battery temperature threshold is 46 ℃, and the fourth battery temperature threshold is 4 ℃.
The first magnification threshold is 2.0 and the second magnification threshold is 1.0. In step S203, the predetermined time is 35 min. The first flow threshold is 90% of the maximum flow into the water-cooledplate assembly 4 and the second flow threshold is 60% of the maximum flow into the water-cooledplate assembly 4.
Through the embodiment, the working parameters of theenergy storage module 2 are detected, thecontrol module 3 is used for feeding back and adjusting the liquid cooling module, the temperature and the flow of cooling liquid in the liquid cooling module are adjusted in real time, the temperature of theenergy storage module 2 is accurately regulated and controlled under the condition of low energy consumption, the liquid cooling module has the functions of heating and cooling so as to adapt to various working states of theenergy storage module 2, and the energy storage module has the characteristics of high integration level, high flexibility, simple structure and the like.
The applicant declares that the above description is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and it should be understood by those skilled in the art that any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are within the scope and disclosure of the present invention.
Claims (10)
1. The energy storage liquid cooling system device is characterized by comprising a cabinet, a detection module and a control module, wherein the cabinet is internally provided with the liquid cooling module and the energy storage module, the liquid cooling module is used for cooling or heating the energy storage module, the detection module is arranged on the liquid cooling module and the energy storage module, and the detection module is used for detecting the temperature and the flow of cooling liquid in the liquid cooling module and working parameters of the energy storage module;
the control module is respectively electrically connected with the liquid cooling module and the detection module, and the control module is used for receiving a feedback signal of the detection module and controlling the temperature and the flow of cooling liquid in the liquid cooling module in a feedback mode.
2. The system of claim 1, wherein the energy storage module comprises at least one battery disposed side-by-side;
preferably, the liquid cooling module comprises a water cooling machine and a water cooling plate assembly which are connected in a circulating manner, the water cooling plate assembly comprises a liquid inlet main pipe, a liquid outlet main pipe and at least one water cooling plate, the water cooling plate is respectively and independently connected to the liquid inlet main pipe and the liquid outlet main pipe through an adapter, and the water cooling plate is used for cooling and heating the battery;
preferably, the water cooling plates are connected in parallel, the water cooling plates correspond to the batteries one by one, cooling liquid in the liquid inlet header pipe enters the water cooling plates respectively, and the cooling liquid after heat exchange is collected to the liquid outlet header pipe and returns to the water cooling machine;
preferably, the detection module comprises an inlet temperature sensor, an inlet flow sensor and an outlet temperature sensor, the inlet temperature sensor and the inlet flow sensor are both arranged at the inlet end of the water cooling plate assembly, and the outlet temperature sensor is arranged at the outlet end of the water cooling plate assembly;
preferably, the detection module further comprises a battery parameter detector arranged on the energy storage module, and the battery parameter detector is used for detecting the working parameters of the energy storage module;
preferably, the battery parameter detector is located within the cabinet.
3. The system device according to claim 2, wherein the control module is electrically connected to the water cooler, the inlet temperature sensor, the inlet flow sensor and the battery parameter detector independently; the control module receives feedback signals of an inlet temperature sensor, an inlet flow sensor and a battery parameter detector respectively and controls the refrigeration modes of the water cooling machine in a feedback mode, wherein the refrigeration modes comprise a quick cooling mode, an inter-cooling mode, a slow cooling mode and a heating mode.
4. A method for controlling temperature by using the energy storage liquid cooling system device according to any one of claims 1-3, wherein the method comprises:
the detection module detects the temperature and the charging and discharging multiplying power of the energy storage module, detects the temperature and the flow of cooling liquid in the liquid cooling module, sends a feedback signal to the control module, and the control module controls the temperature and the flow of the liquid cooling module in a feedback mode to control the temperature of the energy storage module.
5. The control method according to claim 4, characterized in that the control method specifically comprises the steps of:
s100, detecting the temperature and the charging and discharging multiplying power of an energy storage module by a battery parameter detector, respectively detecting the temperature and the flow of an inlet of a water cooling plate assembly by an inlet temperature sensor and an inlet flow sensor, and entering S200;
s200, the control module receives feedback signals of an inlet temperature sensor, an inlet flow sensor and a battery parameter detector, judges whether the temperature of the energy storage module is greater than or equal to a first battery temperature threshold value and whether the charging and discharging multiplying power is smaller than a first multiplying power threshold value, starts a first processing mode if the judgment result is yes, and enters a step S201; if the judgment result is negative, the step S300 is entered;
s201, the control module judges whether the temperature of the inlet of the water cooling plate assembly is equal to a first water temperature threshold value or not, and if the judgment result is yes, the step S203 is carried out; if the judgment result is negative, the step S202 is entered;
s202, the control module controls the water cooling machine in a feedback mode, the temperature and the flow entering the inlet of the water cooling plate assembly are adjusted, and the water cooling machine enters a quick cooling mode and enters S203;
s203, after the water cooling machine executes the quick cooling mode for a certain time, entering S204;
s204, the control module judges whether the temperature of the energy storage module is greater than or equal to a second battery temperature threshold value, and if the judgment result is yes, the step S205 is executed; if the judgment result is negative, the step S200 is entered;
s205, stopping working of the energy storage module, and closing a system device;
s300, the control module judges whether the temperature of the energy storage module is greater than or equal to a third battery temperature threshold value, if so, a second processing mode is started, and the step S301 is executed; if the judgment result is negative, the step S400 is entered;
s301, the control module judges whether the charging and discharging multiplying power of the energy storage module is larger than or equal to a second multiplying power threshold value, and if the judging result is yes, the step S302 is executed; if the judgment result is no, the step S305 is entered;
s302, the control module judges whether the temperature of the inlet of the water cooling plate assembly is equal to a first water temperature threshold value or not, and if the judgment result is yes, the step S303 is executed; if the judgment result is negative, the step S304 is entered;
s303, a water cooling machine executes a quick cooling mode;
s304, the control module controls the water cooling machine in a feedback mode, the temperature and the flow entering the inlet of the water cooling plate assembly are adjusted, and the water cooling machine enters a quick cooling mode and enters S303;
s305, the control module judges whether the temperature of the inlet of the water cooling plate assembly is equal to a second water temperature threshold value or not, and if the judgment result is yes, the step S306 is executed; if the judgment result is negative, the step S307 is entered;
s306, a water cooling machine executes a quick cooling mode;
s307, the control module controls the water cooling machine in a feedback mode, the temperature and the flow entering the inlet of the water cooling plate assembly are adjusted, and the water cooling machine enters a quick cooling mode and enters S306;
s400, the control module judges whether the temperature of the energy storage module is greater than or equal to a fourth battery temperature threshold value, if so, a third processing mode is started, and the step S401 is executed; if the judgment result is negative, the step S500 is carried out;
s401, the control module judges whether the charging and discharging multiplying power of the energy storage module is larger than or equal to a second multiplying power threshold value, if so, the step S402 is executed; if the judgment result is negative, the step S405 is executed;
s402, the control module judges whether the temperature of the inlet of the water cooling plate assembly is equal to a second water temperature threshold value or not, and if the judgment result is yes, the step S403 is executed; if the judgment result is negative, the step S404 is entered;
s403, the water cooler executes an inter-cooling mode;
s404, the control module controls the water cooling machine in a feedback mode, the temperature and the flow entering the inlet of the water cooling plate assembly are adjusted, the water cooling machine enters an intercooling mode, and the water cooling machine enters S403;
s405, the control module judges whether the temperature of the inlet of the water cooling plate assembly is equal to a third water temperature threshold value or not, and if the judgment result is yes, the step S406 is executed; if the judgment result is negative, the step S407 is entered;
s406, the water cooling machine executes a slow cooling mode;
s407, the control module controls the water cooling machine in a feedback mode, the temperature and the flow entering the inlet of the water cooling plate assembly are adjusted, and the water cooling machine enters a slow cooling mode and enters S406;
and S500, the control module feeds back and controls the energy storage module to charge, controls the water cooling machine, adjusts the temperature and the flow entering the inlet of the water cooling plate assembly, and enables the water cooling machine to enter a heating mode.
6. The control method according to claim 5, wherein in the rapid cooling mode, the temperature of the inlet of the water-cooling plate assembly is a first water temperature threshold value, and the flow rate of the inlet of the water-cooling plate assembly is a first flow rate threshold value;
preferably, in the rapid cooling mode, the temperature of the inlet of the water-cooling plate assembly is a second water temperature threshold, and the flow rate of the inlet of the water-cooling plate assembly is a first flow rate threshold;
preferably, in the intercooling mode, the temperature of the inlet of the water-cooling plate assembly is a second water temperature threshold, and the flow rate of the inlet of the water-cooling plate assembly is a second flow rate threshold;
preferably, in the slow cooling mode, the temperature of the inlet of the water-cooling plate assembly is a third water temperature threshold, and the flow rate of the inlet of the water-cooling plate assembly is a second flow rate threshold;
preferably, in the heating mode, the temperature of the inlet of the water-cooling plate assembly is a fourth water temperature threshold, and the flow rate of the inlet of the water-cooling plate assembly is a first flow rate threshold.
7. The control method according to claim 5 or 6, characterized in that the first water temperature threshold value is 14-16 ℃;
preferably, the second water temperature threshold is 19-21 ℃;
preferably, the third water temperature threshold is 24-26 ℃;
preferably, the fourth water temperature threshold is 45-47 ℃.
8. The control method according to any one of claims 5 to 7, wherein the first battery temperature threshold is 54 to 56 ℃;
preferably, the second battery temperature threshold is 59-61 ℃;
preferably, the third battery temperature threshold is 44-46 ℃;
preferably, the fourth battery temperature threshold is 2-4 ℃.
9. The control method according to any one of claims 5 to 8, wherein the first magnification threshold is 1.5 to 2.0;
preferably, the second magnification threshold is 0.5-1.0;
preferably, in step S203, the certain time is 25 to 35 min.
10. A control method according to any one of claims 5 to 9 wherein the first flow threshold is 90 to 100% of the maximum flow into the water cooled plate assembly;
preferably, the second flow threshold is 40-60% of the maximum flow entering the water cooling plate assembly.
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| PCT/CN2021/107882WO2022151696A1 (en) | 2021-01-12 | 2021-07-22 | Energy storage liquid-cooling system and temperature control method |
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| CN114050352A (en)* | 2021-11-29 | 2022-02-15 | 湖北亿纬动力有限公司 | A box-type power supply non-contact liquid cooling system and control method |
| CN114497806A (en)* | 2022-01-26 | 2022-05-13 | 西安科技大学 | Power battery thermal management system and control method |
| CN115686117A (en)* | 2023-01-03 | 2023-02-03 | 苏州浪潮智能科技有限公司 | Liquid cooling control method, system, liquid cooling cabinet, electronic equipment and storage medium |
| CN116315304A (en)* | 2023-02-21 | 2023-06-23 | 珠海科创储能科技有限公司 | Flow-equalizing and pressure-regulating method for multi-stage liquid cooling pipeline |
| CN117239304A (en)* | 2023-11-16 | 2023-12-15 | 深圳永泰数能科技有限公司 | Liquid cooling energy storage thermal management system and method |
| CN117239304B (en)* | 2023-11-16 | 2024-01-30 | 深圳永泰数能科技有限公司 | Liquid cooling energy storage thermal management system and method |
| CN117393920A (en)* | 2023-12-11 | 2024-01-12 | 深圳市普裕时代新能源科技有限公司 | Liquid cooling energy storage system of lithium ion battery |
| CN117393920B (en)* | 2023-12-11 | 2024-03-08 | 深圳市普裕时代新能源科技有限公司 | Liquid cooling energy storage system of lithium ion battery |
| CN119855119A (en)* | 2025-03-18 | 2025-04-18 | 北京亿安天下科技股份有限公司 | Sectional control refrigeration plate type liquid cooling structure supporting intelligent temperature control |
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| Publication number | Publication date |
|---|---|
| CN112864488B (en) | 2023-02-07 |
| WO2022151696A1 (en) | 2022-07-21 |
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