CN114050356B - Multifunctional power battery module thermal management system device - Google Patents
Multifunctional power battery module thermal management system device Download PDFInfo
- Publication number
- CN114050356B CN114050356B CN202111319857.6A CN202111319857A CN114050356B CN 114050356 B CN114050356 B CN 114050356B CN 202111319857 A CN202111319857 A CN 202111319857A CN 114050356 B CN114050356 B CN 114050356B
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- Prior art keywords
- heating
- power battery
- temperature
- control system
- layer circuit
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- 238000010438 heat treatment Methods 0.000 claims abstract description 93
- 238000012544 monitoring process Methods 0.000 claims abstract description 10
- 239000011810 insulating material Substances 0.000 claims description 16
- 239000000758 substrate Substances 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 5
- 238000012545 processing Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 4
- 229920000642 polymer Polymers 0.000 claims description 4
- 238000004321 preservation Methods 0.000 claims description 4
- 239000004642 Polyimide Substances 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 2
- 238000005485 electric heating Methods 0.000 claims description 2
- 229920001721 polyimide Polymers 0.000 claims description 2
- 239000000741 silica gel Substances 0.000 claims description 2
- 229910002027 silica gel Inorganic materials 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 2
- 238000013461 design Methods 0.000 abstract description 6
- 230000017525 heat dissipation Effects 0.000 abstract description 4
- 230000007704 transition Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 4
- 229910001416 lithium ion Inorganic materials 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
Classifications
-
- 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
-
- 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
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/63—Control systems
- H01M10/633—Control systems characterised by algorithms, flow charts, software details or the like
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/657—Means for temperature control structurally associated with the cells by electric or electromagnetic means
-
- 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
- H01M10/659—Means for temperature control structurally associated with the cells by heat storage or buffering, e.g. heat capacity or liquid-solid phase changes or transition
-
- 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
Abstract
The invention discloses a multifunctional power battery module thermal management system device which comprises a power battery, a heating assembly, a phase change module, a multifunctional connecting plate, a temperature monitoring system and a heating control system. The power battery carry out N section equipment with series connection or parallel connection mode, heating element laminate in the power battery surface heat, the phase transition module parcel or laminate in the heating element outside, multifunctional connection board arrange in power battery's upper end or bottom to communicate with power battery and heating element, temperature monitoring system distribute in power battery surface acquisition temperature, heating control system be used for controlling heating element's mode of operation. By implementing the invention, the integrated design of the battery module thermal management system can be effectively solved, the functions of high-temperature heat dissipation and low-temperature heating can be realized, and the overall cost of the battery stack thermal management system is reduced.
Description
Technical Field
The invention relates to the field of power battery thermal management systems, in particular to a multifunctional power battery module thermal management system device.
Background
New energy electric vehicles are popular with more and more consumers in recent years as one of the technologies for replacing the traditional fuel vehicles by the great development of countries and as one of the important actions for realizing the 'two-carbon' strategic targets. As a power supply and storage heart of the new energy electric automobile, the requirements on the energy density, the power density and the service life of the lithium ion battery are also higher and higher. However, the lithium ion battery is very sensitive to the external environment temperature, the electrochemical activity of the lithium ion battery is reduced due to the excessively low temperature, and the chargeable and dischargeable performance of the lithium ion battery is affected seriously; in a high-temperature environment, the battery is easy to accumulate heat to raise the temperature, and in severe cases, the thermal runaway accident of the power battery can be induced. Therefore, it is particularly important to develop and design a set of efficient and safe thermal management system aiming at the power battery system of the new energy electric automobile.
At present, the heat management system scheme related to the design of the power battery pack is also various, but the common heat management system design only considers a certain function, such as high-temperature heat dissipation or low-temperature heating, so that the power battery has to repeatedly design the heat management system to adapt to all-weather climate, which results in complex system structure and high cost, for example, as described in the prior patents CN201610154183.1 and CN 201410700453.5.
Disclosure of Invention
Aiming at the defects, the multifunctional power battery module thermal management system device can effectively solve the problem of the split design of the heat dissipation and heating system of the conventional thermal management system, thereby ensuring that the power battery can maintain higher working efficiency under severe environments.
In order to achieve the above purpose, the technical scheme of the invention is as follows:
a multi-functional power battery module thermal management system device, comprising: the power battery adopts series and parallel blend N-section assembly to form a module taking 12V as a basic unit, the power battery is a cylinder-shaped or square or polymer soft package battery, the heating component is attached to the outer surface of the power battery, the phase-change module is attached to or wrapped on the outer side of the heating component, the power battery, the heating component and the phase-change module form series structure assembly, the multifunctional connecting plate is arranged at the top end or the bottom end of the power battery, the multifunctional connecting plate mainly comprises a substrate, a first layer circuit, an insulating material and a second layer circuit, the insulating material is arranged between the two layers of circuits, the insulating material is also arranged on the outer side of the second layer circuit, the first layer circuit is used for being connected with the positive electrode or the negative electrode of the power battery in series or in parallel, the second layer circuit is used for being connected with an external power supply circuit of the heating assembly, the first layer circuit and the second layer circuit are provided with a communication control switch, wherein the communication control switch is arranged in the heating control system, an execution instruction is sent by the heating control system, the control switch is in a closed state in an initial heating stage, the heating control system coordinates the control switch to be combined or disconnected after the heating enters a target temperature heat preservation stage, a pulse heat preservation mode is implemented, the heating energy of the stage consumes the electric energy of the power battery, the power batteries of the single module are connected in series or in parallel through the multifunctional connecting plate, meanwhile, an external power interface of the heating assembly is also arranged on the multifunctional connecting plate, the temperature monitoring system is distributed on the outer surface of the power battery and used for collecting, processing and uploading temperature data of the whole module to the heating control system, and the heating control system controls the working mode of the heating assembly.
Further, the power battery is a cylindrical or square or soft package polymer power battery, and a module taking 12V as a basic unit is formed by adopting series and parallel blend N-section assembly, wherein N is more than or equal to 4.
Further, the heating component is arranged on the outer surface of the power battery to be attached, and the heating component is a heating film or a silica gel heating sheet or a polyimide heating sheet or an electric heating sheet.
Further, the phase change module is arranged on the outer layer of the heating assembly, and is tightly attached to or wrapped around the heating assembly, so that a serial structural assembly is formed by the phase change module, the power battery and the heating assembly.
Further, the temperature monitoring system is composed of a temperature sensor and a chip processor, wherein the temperature sensor is arranged on the outer surface of the power battery and is used for collecting temperature feedback of the power battery in real time and is arranged in the chip processor, and the chip processor is arranged in the heating control system and is used for processing and processing collected temperature data and uploading the processed temperature data to the heating control system.
Further, the heating control system is in direct or indirect control linkage with the heating assembly, the temperature monitoring system and the multifunctional connecting plate, the heating assembly is connected with the heating assembly to control the working mode of the heating assembly, the temperature monitoring system is connected with the heating assembly to guide and control the working mode of the heating assembly according to temperature data uploaded by a chip processor, and the multifunctional connecting plate is connected with a control switch for controlling a first layer circuit and a second layer circuit inside the multifunctional connecting plate.
Drawings
Fig. 1 is a schematic diagram of a cylindrical battery module structure of a multifunctional thermal management system device for a power battery module
Fig. 2 is a schematic diagram of a square battery module structure of a thermal management system device of a multifunctional power battery module
Fig. 3 is a schematic diagram of a multifunctional connecting plate structure applied to a cylindrical battery pack
Fig. 4 is a schematic diagram of a multifunctional connecting plate structure applied to a square battery pack
Fig. 5 is a schematic view of an assembled structure of a cylindrical battery cell
Fig. 6 is a schematic view of an assembled structure of a prismatic battery cell
The figure illustrates: a power battery (1); a positive electrode (101); a negative electrode (102); a heating assembly (2); a phase change module (3); a multifunctional connecting plate (4); a substrate (401); a first layer of circuitry (402); a layer of insulating material (403); a second layer circuit (404); a temperature control system (5); a heating control system (6).
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Referring to fig. 1 to 6, the present embodiment relates to a power battery (1), a heating assembly (2), a phase change module (3), a multifunctional connection plate (4), a temperature control system (5) and a heating control system (6); the battery module can be respectively formed by adopting a cylindrical or square battery, and takes 12V as the minimum unit module, a positive electrode (101) and a negative electrode (102) connecting column are respectively arranged on the power battery (1), and the positive electrode (101) and the negative electrode (102) are respectively connected with a first layer of circuit (402) in the multifunctional connecting plate (4); the power battery (1) is wrapped or attached with a heating component (2), a power connection wire is also arranged on the heating component (2) and is connected with a second-layer circuit (404) in the multifunctional connection plate (4), and the power connection wire of the heating component (2) is not contacted with the first-layer circuit (402) in the multifunctional connection plate (4), so that direct contact and communication are avoided; the phase change module (3) is wrapped or attached to the outer side of the heating component (2), and heat generated when the power battery (1) operates in a high-temperature environment can be absorbed by the phase change module (3) to control the temperature of the power battery (1); the temperature sensor in the temperature control system (5) is arranged on the outer surface of the power battery (1) and is used for collecting the surface temperature of the power battery (1) in real time, uploading the surface temperature to a chip processor in the temperature control system (5) for processing and finally sending the surface temperature to the heating control system (6); the multifunctional connecting plate (4) is arranged at the top end or the bottom of the power battery (1), and the multifunctional connecting plate (4) is composed of a substrate (401), multilayer circuits (402, 404) and an insulating material (403); the heating control system (6) is arranged on the multifunctional connecting plate (4) and is respectively communicated with a first layer of circuit (402) and a second layer of circuit (404) in the multifunctional connecting plate (4).
Referring to fig. 3 and 4, the multifunctional connecting plate (4) is composed of a substrate (401), a first layer of circuit (402), an insulating material (403) and a second layer of circuit (404), wherein the substrate (401) is positioned at the bottommost layer, the first layer of circuit (402) is laid on the substrate, and the structure is different according to the fact that the multifunctional connecting plate (4) is applied to a cylindrical battery or a square battery; referring to fig. 3, a schematic structural diagram of a multifunctional connecting plate (4) applied to a square battery module is shown, the first layer circuit (402) is laid longitudinally in a single sheet, and is used for connecting the positive electrode (101) or the negative electrode (102) of a plurality of power batteries (1) in series and parallel, an insulating material (403) is laid on the first layer circuit (402) to play an insulating and isolating role, a second layer circuit (404) is laid above the insulating material (403), the second layer circuit (404) is divided into two single-sheet circuits distributed on the insulating material (403), the power connection wires on the heating assembly (2) are respectively connected, and finally, a layer of insulating material (403) is laid on the second layer circuit (404), so that the multifunctional connecting plate (4) applied to the square battery module is formed; in the cylindrical battery module according to fig. 4, the first layer circuit (402) is laid in a single piece and is used for connecting the positive electrode (101) of the first row of power batteries (1) and the negative electrode (102) of the second row of power batteries (1), so as to form a series structure, a layer of insulating material (403) is laid above the first layer circuit (402), a second layer of circuit (404) is laid above the insulating material (403), the second layer of circuit (402) is laid in a whole piece and is used for being communicated with the power connection wire of the heating assembly (2), and a layer of insulating material (403) is laid above the second layer of circuit (404), so as to form the multifunctional connecting plate (4) applied to the cylindrical battery module.
Referring to fig. 3 and 4, the heating control system (6) is disposed on the multifunctional connecting board (4), the first layer circuit (402) and the second layer circuit (404) are respectively connected with the heating control system (6), a control switch is disposed between the first layer circuit (402) and the second layer circuit (404), the combined or disconnected command of the control switch is controlled and executed by the heating control system (6), the signal command of the heating control system (6) for executing the control switch is derived from the temperature data after being monitored, collected and processed by the temperature control system (5), the control switch between the first layer circuit (402) and the second layer circuit (404) is in an off state in the initial stage of the operation of the heating assembly (2), the power supply of the heating assembly (2) is located at the external power supply of the heating control system (6), after the temperature control system (5) monitors that the preset target temperature value of the power battery (1) is reached, the second layer circuit (404) is cooperatively modulated with the control switch (5) to be connected or disconnected after the temperature control system (5) reaches the preset target temperature value, and heating by adopting the electric energy stored by the power battery (1).
Referring to fig. 5 and 6, the heating component (2) is assembled with the power battery (1) in a wrapping or attaching mode, a power connection wire of the heating component (2) and a positive electrode (101) or a negative electrode (102) of the power battery (1) pass through the substrate (401) in the same direction to reach a first layer of circuit (402) and a second layer of circuit (404) respectively, a phase module (3) wraps or attaches to the outer side of the heating component (2), and a battery module with a compact heating/heat dissipation integrated structure is formed, and the phase transition temperature of the phase module (3) is selected to be between 35 ℃ and 45 ℃ so that the power battery (1) operates in a mild temperature environment.
Claims (5)
1. A multi-functional power battery module thermal management system device, comprising: the power battery adopts series and parallel blend N-section assembly to form a module taking 12V as a basic unit, the power battery is a cylinder-shaped or square or polymer soft package battery, the heating component is attached to the outer surface of the power battery, the phase-change module is attached to or wrapped on the outer side of the heating component, the power battery, the heating component and the phase-change module form series structure assembly, the multifunctional connecting plate is arranged at the top end or the bottom end of the power battery, the multifunctional connecting plate mainly comprises a substrate, a first layer circuit, an insulating material and a second layer circuit, the insulating material is arranged between the two layers of circuits, the insulating material is also arranged on the outer side of the second layer circuit, the first layer circuit is used for being connected with the positive electrode or the negative electrode of the power battery in series or in parallel, the second layer circuit is used for being connected with an external power supply circuit of the heating assembly, the first layer circuit and the second layer circuit are provided with a communication control switch, wherein the communication control switch is arranged in the heating control system, an execution instruction is sent by the heating control system, the control switch is in a closed state in an initial heating stage, the heating control system coordinates the control switch to be combined or disconnected after the heating enters a target temperature heat preservation stage, a pulse heat preservation mode is implemented, the heating energy of the stage consumes the electric energy of the power battery, the power batteries of the single module are connected in series or in parallel through the multifunctional connecting plate, meanwhile, an external power interface of the heating assembly is also arranged on the multifunctional connecting plate, the temperature monitoring system is distributed on the outer surface of the power battery and used for collecting, processing and uploading temperature data of the whole module to the heating control system, and the heating control system controls the working mode of the heating assembly.
2. The device of claim 1, wherein the power battery is a cylindrical or square or soft polymer power battery, and the module is formed by assembling N sections of serial and parallel blend type with 12V as a basic unit, wherein N is greater than or equal to 4.
3. The device of claim 1, wherein the heating element is disposed on the outer surface of the power battery and is attached to the outer surface of the power battery, and the heating element is a heating film, a silica gel heating sheet, a polyimide heating sheet or an electric heating sheet.
4. The device of claim 1, wherein the temperature monitoring system comprises a temperature sensor and a chip processor, the temperature sensor is disposed on the outer surface of the power battery and is used for collecting the temperature feedback of the power battery in real time and the chip processor is disposed in the heating control system, and the chip processor processes and processes the collected temperature data and uploads the processed temperature data to the heating control system.
5. The device of claim 1, wherein the heating control system is in direct or indirect control linkage with the heating assembly, the temperature monitoring system and the multifunctional connecting plate, the heating assembly is connected with the heating assembly to control the working mode of the heating assembly, the temperature monitoring system is connected with the heating assembly to guide and control the working mode of the heating assembly according to the temperature data uploaded by the chip processor, and the multifunctional connecting plate is connected with the control switch between the first layer circuit and the second layer circuit inside the multifunctional connecting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111319857.6A CN114050356B (en) | 2021-11-09 | 2021-11-09 | Multifunctional power battery module thermal management system device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111319857.6A CN114050356B (en) | 2021-11-09 | 2021-11-09 | Multifunctional power battery module thermal management system device |
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| Publication Number | Publication Date |
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| CN114050356A CN114050356A (en) | 2022-02-15 |
| CN114050356B true CN114050356B (en) | 2023-11-14 |
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| CN202111319857.6A Active CN114050356B (en) | 2021-11-09 | 2021-11-09 | Multifunctional power battery module thermal management system device |
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| CN114050356A (en) | 2022-02-15 |
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