CN108963378B - Battery pack cooling system and control method thereof - Google Patents
Battery pack cooling system and control method thereof Download PDFInfo
- Publication number
- CN108963378B CN108963378B CN201810586857.4A CN201810586857A CN108963378B CN 108963378 B CN108963378 B CN 108963378B CN 201810586857 A CN201810586857 A CN 201810586857A CN 108963378 B CN108963378 B CN 108963378B
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- cooling
- branch pipe
- electromagnetic valve
- temperature
- pipeline
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- 238000001816 cooling Methods 0.000 title claims abstract description 203
- 238000000034 method Methods 0.000 title claims description 5
- 239000000498 cooling water Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 11
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011217 control strategy Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
Classifications
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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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring 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
- H01M10/63—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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Automation & Control Theory (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a battery pack cooling system, which is formed by connecting battery units, wherein each battery unit is coiled with a water cooling pipeline, each water cooling pipeline is provided with a cooling electromagnetic valve, two ends of each cooling pipeline are connected to cooling branch pipes, a branch pipe electromagnetic valve is arranged between two communication positions connected with each cooling pipeline on each cooling branch pipe, two ends of each cooling branch pipe are connected to a cooling main pipe, and a main pipe electromagnetic valve is arranged between two communication positions connected with each cooling branch pipe on the cooling main pipe. The invention has the advantages that the cooling force can be distributed, and the working stability and safety of the battery pack can be improved.
Description
Technical Field
The present invention relates to the field of battery cooling.
Background
When the battery pack works, if the temperature is too high, the fault risk can be increased, even explosion can occur, so that the battery pack is particularly important for cooling the battery, and at present, the cooling of the battery is mostly realized by adopting group cooling, namely, a set of cooling system provides cooling with equal efficiency for each battery unit of the battery pack, and cooling emphasis can not be adjusted aiming at the overhigh temperature of a partial area.
Disclosure of Invention
The invention aims to solve the technical problem of realizing the cooling device which can adjust the cooling capacity of each battery pack according to the condition of each battery pack and ensure the reliable cooling of the battery packs.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: the battery pack cooling system comprises battery units which are connected with each other, each battery unit is coiled with a water cooling pipeline, each water cooling pipeline is provided with a cooling electromagnetic valve, each water cooling pipeline is connected to a cooling branch pipe at two ends of the cooling pipeline, a branch pipe electromagnetic valve is arranged between two communication positions connected with each cooling pipeline on the cooling branch pipe, two ends of the cooling branch pipe are connected to a cooling main pipe, a main pipe electromagnetic valve is arranged between two communication positions connected with each cooling branch pipe on the cooling main pipe, two ends of the cooling main pipe are connected with a cooling water tank, one end of the cooling main pipe is provided with a cooling pump, and the system is provided with a cooling controller which outputs driving signals to the cooling electromagnetic valve, the branch pipe electromagnetic valve, the main pipe electromagnetic valve and the cooling pump through the cooling control unit.
Each battery unit is provided with a temperature sensor for collecting the temperature of the battery unit, and the temperature sensor outputs a temperature signal to the cooling controller.
The control method based on the battery pack cooling system is characterized by comprising the following steps of:
after the cooling pump is started, all main pipe electromagnetic valves and branch pipe electromagnetic valves are closed, and all cooling electromagnetic valves are opened;
The cooling controller pre-stores two temperature intervals, including interval 1[ A-B ] and interval 2 (B-C);
the cooling controller acquires temperature signals in real time:
When the temperature of the battery unit which is responsible for a certain cooling branch pipe is less than A, closing the branch pipe electromagnetic valve and the cooling electromagnetic valve on the cooling branch pipe, and opening all the main pipe electromagnetic valves between the cooling branch pipes;
When the temperature of the battery unit responsible for a certain cooling branch pipe is less than or equal to B, a main pipe electromagnetic valve between the cooling branch pipes is opened by 50%, a cooling electromagnetic valve on a cooling pipeline of the battery unit with the temperature less than A on the cooling branch pipe is closed, branch pipe electromagnetic valves between two ends of the cooling pipeline are all opened, a cooling electromagnetic valve on a cooling pipeline of the battery unit with the temperature in a section 1 on the cooling branch pipe is all opened, and branch pipe electromagnetic valves between two ends of the cooling pipeline are closed;
When the temperature of the battery unit responsible for a certain cooling branch pipe is less than or equal to C, the main pipe electromagnetic valve between the cooling branch pipes is fully opened, the cooling electromagnetic valve on the cooling pipeline of the battery unit with the temperature less than A on the cooling branch pipe is fully opened, the branch pipe electromagnetic valve between the two ends of the cooling pipeline is fully opened, the cooling electromagnetic valve on the cooling pipeline of the battery unit with the temperature at the interval 1 on the cooling branch pipe is fully opened, the branch pipe electromagnetic valve between the two ends of the cooling pipeline is opened by 50%, the cooling electromagnetic valve on the cooling pipeline of the battery unit with the temperature at the interval 2 on the cooling branch pipe is fully opened, and the branch pipe electromagnetic valve between the two ends of the cooling pipeline is fully opened.
When the temperature of the battery units responsible for a certain cooling branch pipe is less than C
And when the temperature of the battery unit in charge of a certain cooling branch pipe is greater than C, alarming.
The invention has the advantages that the cooling force can be distributed, and the working stability and safety of the battery pack can be improved.
Drawings
The following is a brief description of what is expressed in each of the drawings in the specification of the invention:
Fig. 1 is a schematic diagram of a cooling system.
Detailed Description
The battery pack is provided with a cooling system, water cooling can be adopted, as shown in fig. 1, each battery unit is coiled with a water cooling pipeline, each water cooling pipeline is provided with a cooling electromagnetic valve, two ends of each cooling pipeline are connected to a cooling branch pipe, a branch pipe electromagnetic valve is arranged between two communication positions connected with each cooling pipeline on the cooling branch pipe, two ends of each cooling branch pipe are connected to a cooling main pipe, a main pipe electromagnetic valve is arranged between two communication positions connected with each cooling branch pipe on the cooling main pipe, a water cooling device capable of being selectively connected to the cooling system is formed, two ends of the cooling main pipe are connected with a cooling water tank, water in the water tank can be cooled through wind power, one end of the cooling main pipe is provided with a cooling pump, the controller outputs a control signal to a cooling controller, the cooling controller outputs a driving signal to the cooling electromagnetic valve, the branch pipe electromagnetic valve, the main pipe electromagnetic valve and the cooling pump through the cooling control unit, and each battery unit is provided with a temperature sensor for acquiring the temperature of the battery unit, the temperature sensor outputs a temperature signal to the controller, thus the controller can control the battery unit entering to be cooled according to the temperature of each battery unit, the key cooling effect is achieved, and the cooling effect is improved.
The control strategy for cooling is as follows:
after the cooling pump is started, all main pipe electromagnetic valves and branch pipe electromagnetic valves are closed, and all cooling electromagnetic valves are opened;
The cooling controller pre-stores two temperature intervals, including interval 1[ A-B ] and interval 2 (B-C);
the cooling controller acquires temperature signals in real time:
When the temperature of the battery unit which is responsible for a certain cooling branch pipe is less than A, closing the branch pipe electromagnetic valve and the cooling electromagnetic valve on the cooling branch pipe, and opening all the main pipe electromagnetic valves between the cooling branch pipes;
When the temperature of the battery unit responsible for a certain cooling branch pipe is less than or equal to B, a main pipe electromagnetic valve between the cooling branch pipes is opened by 50%, a cooling electromagnetic valve on a cooling pipeline of the battery unit with the temperature less than A on the cooling branch pipe is closed, branch pipe electromagnetic valves between two ends of the cooling pipeline are all opened, a cooling electromagnetic valve on a cooling pipeline of the battery unit with the temperature in a section 1 on the cooling branch pipe is all opened, and branch pipe electromagnetic valves between two ends of the cooling pipeline are closed;
When the temperature of the battery unit responsible for a certain cooling branch pipe is less than or equal to C, the main pipe electromagnetic valve between the cooling branch pipes is fully opened, the cooling electromagnetic valve on the cooling pipeline of the battery unit with the temperature less than A on the cooling branch pipe is fully opened, the branch pipe electromagnetic valve between the two ends of the cooling pipeline is fully opened, the cooling electromagnetic valve on the cooling pipeline of the battery unit with the temperature at the interval 1 on the cooling branch pipe is fully opened, the branch pipe electromagnetic valve between the two ends of the cooling pipeline is opened by 50%, the cooling electromagnetic valve on the cooling pipeline of the battery unit with the temperature at the interval 2 on the cooling branch pipe is fully opened, and the branch pipe electromagnetic valve between the two ends of the cooling pipeline is fully opened.
When the temperature of the battery units responsible for a certain cooling branch pipe is less than C
And when the temperature of the battery unit in charge of a certain cooling branch pipe is greater than C, alarming.
Therefore, the cooling distribution condition can be adjusted according to the current temperatures of the battery units at different positions, the reliable temperature of each battery unit is ensured, in addition, the control logic of the system is simple, and too many crossed control conditions are avoided, so that the whole system only utilizes the current temperature of the battery unit to adjust, the operation is stable and reliable, and no BUG occurs.
While the invention has been described above with reference to the accompanying drawings, it will be apparent that the invention is not limited to the above embodiments, but is capable of being modified or applied directly to other applications without modification, as long as various insubstantial modifications of the method concept and technical solution of the invention are adopted, all within the scope of the invention.
Claims (4)
1. The battery pack cooling system comprises battery units which are mutually connected, and each battery unit is coiled with a cooling pipeline, and is characterized in that: each cooling pipeline is provided with a cooling electromagnetic valve, two ends of each cooling pipeline are connected to a cooling branch pipe, a branch pipe electromagnetic valve is arranged between two communication positions connected with each cooling pipeline on each cooling branch pipe, two ends of each cooling branch pipe are connected to a cooling main pipe, a main pipe electromagnetic valve is arranged between two communication positions connected with each cooling branch pipe on the cooling main pipe, two ends of the cooling main pipe are connected with a cooling water tank, one end of the cooling main pipe is provided with a cooling pump, the system is provided with a cooling controller, and the cooling controller outputs driving signals to the cooling electromagnetic valve, the branch pipe electromagnetic valve, the main pipe electromagnetic valve and the cooling pump through a cooling control unit;
a control method based on the battery pack cooling system comprises the following steps:
after the cooling pump is started, all main pipe electromagnetic valves and branch pipe electromagnetic valves are closed, and all cooling electromagnetic valves are opened;
The cooling controller pre-stores two temperature intervals, including interval 1[ A-B ] and interval 2 (B-C);
the cooling controller acquires temperature signals in real time:
When the temperature of the battery unit which is responsible for a certain cooling branch pipe is less than A, closing the branch pipe electromagnetic valve and the cooling electromagnetic valve on the cooling branch pipe, and opening all the main pipe electromagnetic valves between the cooling branch pipes;
when the temperature of the battery unit responsible for a certain cooling branch pipe is less than or equal to B, a main pipe electromagnetic valve between the cooling branch pipes is opened by 50%, a cooling electromagnetic valve on a cooling pipeline of the battery unit with the temperature less than A on the cooling branch pipe is closed, branch pipe electromagnetic valves between two ends of the cooling pipeline are all opened, a cooling electromagnetic valve on a cooling pipeline of the battery unit with the temperature in a section 1 on the cooling branch pipe is all opened, and branch pipe electromagnetic valves between two ends of the cooling pipeline are closed;
When the temperature of the battery unit responsible for a certain cooling branch pipe is less than or equal to C, the main pipe electromagnetic valve between the cooling branch pipes is fully opened, the cooling electromagnetic valve on the cooling pipeline of the battery unit with the temperature less than A on the cooling branch pipe is fully opened, the branch pipe electromagnetic valve between the two ends of the cooling pipeline is fully opened, the cooling electromagnetic valve on the cooling pipeline of the battery unit with the temperature at the interval 1 on the cooling branch pipe is fully opened, the branch pipe electromagnetic valve between the two ends of the cooling pipeline is opened by 50%, the cooling electromagnetic valve on the cooling pipeline of the battery unit with the temperature at the interval 2 on the cooling branch pipe is fully opened, and the branch pipe electromagnetic valve between the two ends of the cooling pipeline is fully opened.
2. The battery pack cooling system of claim 1, wherein: each battery unit is provided with a temperature sensor for collecting the temperature of the battery unit, and the temperature sensor outputs a temperature signal to the cooling controller.
3. The battery pack cooling system of claim 2, wherein: when the temperature of the battery unit for which a certain cooling branch pipe is responsible is less than C.
4. The battery pack cooling system of claim 3, wherein: and when the temperature of the battery unit in charge of a certain cooling branch pipe is greater than C, alarming.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810586857.4A CN108963378B (en) | 2018-06-08 | 2018-06-08 | Battery pack cooling system and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810586857.4A CN108963378B (en) | 2018-06-08 | 2018-06-08 | Battery pack cooling system and control method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108963378A CN108963378A (en) | 2018-12-07 |
| CN108963378B true CN108963378B (en) | 2024-05-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810586857.4A Active CN108963378B (en) | 2018-06-08 | 2018-06-08 | Battery pack cooling system and control method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108963378B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112310491B (en) * | 2019-07-24 | 2022-05-13 | 中国科学院广州能源研究所 | Lithium battery thermal-safety management system and management and control method |
| CN111354908A (en) * | 2020-02-28 | 2020-06-30 | 河南简行能源科技有限公司 | Bus bar for lithium battery module |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101299475A (en) * | 2008-06-03 | 2008-11-05 | 范汉强 | Cooling method for rapidly charging accumulator and apparatus thereof |
| CN106848465A (en) * | 2017-01-26 | 2017-06-13 | 合肥国轩高科动力能源有限公司 | Cooling protection system of power battery system, power battery system and electric automobile |
| CN206505997U (en) * | 2017-02-27 | 2017-09-19 | 安徽江淮汽车集团股份有限公司 | Battery bag temperature control system |
| CN107953741A (en) * | 2017-11-26 | 2018-04-24 | 安徽星凯龙客车有限公司 | A kind of electric car changes in temperature control system |
| CN208690449U (en) * | 2018-06-08 | 2019-04-02 | 李勇 | A kind of pile cooling |
-
2018
- 2018-06-08 CN CN201810586857.4A patent/CN108963378B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101299475A (en) * | 2008-06-03 | 2008-11-05 | 范汉强 | Cooling method for rapidly charging accumulator and apparatus thereof |
| CN106848465A (en) * | 2017-01-26 | 2017-06-13 | 合肥国轩高科动力能源有限公司 | Cooling protection system of power battery system, power battery system and electric automobile |
| CN206505997U (en) * | 2017-02-27 | 2017-09-19 | 安徽江淮汽车集团股份有限公司 | Battery bag temperature control system |
| CN107953741A (en) * | 2017-11-26 | 2018-04-24 | 安徽星凯龙客车有限公司 | A kind of electric car changes in temperature control system |
| CN208690449U (en) * | 2018-06-08 | 2019-04-02 | 李勇 | A kind of pile cooling |
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| Publication number | Publication date |
|---|---|
| CN108963378A (en) | 2018-12-07 |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20240411 Address after: 241000 No. 48, Yinhu North Road, Wuhu District, China (Anhui) Free Trade Pilot Zone, Wuhu City, Anhui Province Applicant after: Wuhu Etec Automotive Electronics Co.,Ltd. Country or region after: China Address before: 241000 Room 602, Unit 2, Building 11, Taihua Jiayuan, Huayuan Road, Xinwu District, Jinghu District, Wuhu City, Anhui Province Applicant before: Li Yong Country or region before: China |
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