CN111211379A - A lithium-ion battery thermal management system - Google Patents
A lithium-ion battery thermal management system Download PDFInfo
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- CN111211379A CN111211379A CN202010133287.0A CN202010133287A CN111211379A CN 111211379 A CN111211379 A CN 111211379A CN 202010133287 A CN202010133287 A CN 202010133287A CN 111211379 A CN111211379 A CN 111211379A
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- ion battery
- lithium
- temperature
- lithium ion
- air ducts
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- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 125
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 125
- 230000005540 biological transmission Effects 0.000 claims description 7
- 150000002500 ions Chemical class 0.000 claims 2
- 230000009286 beneficial effect Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 5
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000011217 control strategy Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
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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
-
- 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
- H01M10/635—Control systems based on ambient 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
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
-
- 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
- H01M10/6561—Gases
- H01M10/6563—Gases with forced flow, e.g. by blowers
-
- 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 provides a lithium ion battery thermal management system, which comprises: the temperature sensors are distributed outside the lithium ion battery in a spatial array; the processor is electrically connected with each temperature sensor, and the heat exchange device is electrically connected with the processor; the processor detects the temperature of the space where the lithium ion battery is located through the temperature sensor; and when the temperature is higher than a preset value, controlling the heat exchange device to work to cool the lithium ion battery. According to the lithium ion battery thermal management system, the temperature of the lithium ion battery and the temperature of the lithium ion battery in a certain space around the lithium ion battery are detected from a three-dimensional angle through the plurality of temperature sensors distributed outside the lithium ion battery in a spatial array, so that a targeted temperature control means can be conveniently performed on each part of the lithium ion battery.
Description
Technical Field
The invention relates to the technical field of lithium ion batteries, in particular to a lithium ion battery thermal management system.
Background
At present, a single temperature sensor is adopted for temperature detection of conventional thermal management of a lithium ion battery, the temperature of the lithium ion battery is controlled too much on one side, and the detection of each local temperature of the whole lithium ion battery cannot be carried out, so that the temperature control cannot effectively aim at the structure of the lithium ion battery.
Disclosure of Invention
One of the objectives of the present invention is to provide a thermal management system for a lithium ion battery, which detects the temperature of the lithium ion battery and the temperature of the lithium ion battery in a certain space around the lithium ion battery from a three-dimensional angle through a plurality of temperature sensors distributed in a spatial array inside and outside the lithium ion battery, so as to facilitate a targeted temperature control means for each part of the lithium ion battery.
The embodiment of the invention provides a lithium ion battery thermal management system, which comprises:
the temperature sensors are distributed outside the lithium ion battery in a spatial array;
a processor electrically connected to each of the temperature sensors,
the heat exchange device is electrically connected with the processor;
the processor detects the temperature of the space where the lithium ion battery is located through the temperature sensor; and when the temperature is higher than a preset value, controlling the heat exchange device to work to cool the lithium ion battery.
Preferably, the processor obtains the spatial temperature condition of the lithium ion battery through a plurality of temperature sensors distributed outside the lithium ion battery in a spatial array, establishes a spatial model of the lithium ion battery in a spatial modeling manner, and marks the temperature difference on the spatial model of the lithium ion battery according to the color difference.
Preferably, the heat exchange device comprises: the refrigerator, the air duct selection mechanism and the plurality of air ducts; the air channels are six groups, namely a first group of air channels corresponding to the upper surface of the lithium ion battery, a second group of air channels corresponding to the lower surface of the lithium ion battery, a third group of air channels corresponding to the left side surface of the lithium ion battery, a fourth group of air channels corresponding to the right side surface of the lithium ion battery, a fifth group of air channels corresponding to the front surface of the lithium ion battery and a sixth group of air channels corresponding to the back surface of the lithium ion battery; the air outlet pipe of the refrigerator is selectively communicated with one or more groups of air ducts through the air duct selection mechanism.
Preferably, the number of the air outlet pipes of the refrigerator is three.
Preferably, the air duct selecting mechanism includes: the motor comprises a motor, a first main body and a second main body, wherein the first main body is rotatably connected with the second main body; the periphery of the first main body is provided with a transmission gear; the output end of the motor is provided with a gear; the transmission gear is meshed with the gear; the second main body is provided with six first through holes which are arranged in an annular array, and each first through hole is communicated with one group of air channels; three second through holes are formed in the first main body; the three second through holes correspond to the three adjacent first through holes in position.
Preferably, the six first through holes are sequentially communicated with the first group of air ducts, the third group of air ducts, the sixth group of air ducts, the second group of air ducts, the fourth group of air ducts and the fifth group of air ducts in a counterclockwise sequence.
Preferably, the processor is electrically connected with the motor;
when the processor confirms the position of the point with the highest temperature of the lithium ion battery according to the temperature detected by the temperature sensor, the processor controls the motor to rotate so as to enable the first main body and the second main body to rotate, and the first through hole communicated with the second through hole is converted so that the refrigerator air outlet corresponds to the position of the point with the highest temperature.
Preferably, the lithium ion battery thermal management system further includes:
and the display is connected with the processor and used for displaying the space model of the lithium ion battery.
Preferably, the lithium ion battery thermal management system further includes: and the communication module is connected with the processor and is used for being in communication connection with an external server or external equipment.
Preferably, the heat exchange device further comprises a heater, and the heater comprises three air outlet pipes; the second main body also comprises three third through holes which are communicated with the three air outlet pipes of the heater in a one-to-one correspondence manner; the three third through holes and the three second through holes are distributed in an annular array.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic diagram of a lithium ion battery thermal management system according to an embodiment of the present invention;
FIG. 2 is a schematic view of a heat exchange apparatus according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a heat exchange device according to an embodiment of the present invention;
FIG. 4 is a cross-sectional view taken at A of FIG. 3;
FIG. 5 is a schematic structural diagram of a first main body of a heat exchange device according to an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a second main body of a heat exchange device according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a first main body of another heat exchange device in an embodiment of the present invention.
In the figure:
1. a temperature sensor; 2. a processor; 3. a heat exchange device; 31. a refrigerator; 32. an air duct selection mechanism; 33. an air duct; 32-1, a motor; 32-2, a first body; 32-3, a second body; 32-4, a second through hole; 32-5, a first through hole; 32-6 and a third through hole.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
An embodiment of the present invention provides a lithium ion battery thermal management system, as shown in fig. 1, including:
the temperature sensors 1 are distributed outside the lithium ion battery in a spatial array;
a processor 2 electrically connected with each temperature sensor 1 respectively,
the heat exchange device 3 is electrically connected with the processor 2;
the processor 2 detects the temperature of the space where the lithium ion battery is located through the temperature sensor 1; and when the temperature is higher than the preset value, controlling the heat exchange device 3 to work to cool the lithium ion battery.
The working principle and the beneficial effects of the technical scheme are as follows:
through a plurality of temperature sensors 1 distributed outside the lithium ion battery in a spatial array, the temperature of the lithium ion battery and the temperature of the lithium ion battery in a certain space around the lithium ion battery are detected from a three-dimensional angle, and a targeted temperature control means is conveniently carried out on each part of the lithium ion battery. When the temperature of a certain area of the lithium ion battery is greater than a preset value, the heat exchange device 3 can be controlled to cool the lithium ion battery. When the temperature of a certain area of the lithium ion battery is lower than the lowest temperature value, the heat exchange device 3 can be controlled to heat the lithium ion battery. The lithium ion battery is always kept at the optimal temperature through the heat exchange device 3.
In one embodiment, the processor 2 obtains the spatial temperature condition of the lithium ion battery through a plurality of temperature sensors 1 distributed in a spatial array inside and outside the lithium ion battery, establishes a spatial model of the lithium ion battery in a spatial modeling manner, and marks the temperature difference on the spatial model of the lithium ion battery according to the color difference.
The working principle and the beneficial effects of the technical scheme are as follows:
the temperature distribution condition of the lithium ion battery can be more visually seen by a user through the spatial model of the lithium ion battery.
In one embodiment, as shown in fig. 2, the heat exchange device 3 comprises: a refrigerator 31, an air duct selection mechanism 32 and a plurality of air ducts 33; the air ducts 33 are six groups, namely a first group of air ducts corresponding to the upper surface of the lithium ion battery, a second group of air ducts corresponding to the lower surface of the lithium ion battery, a third group of air ducts corresponding to the left side surface of the lithium ion battery, a fourth group of air ducts corresponding to the right side surface of the lithium ion battery, a fifth group of air ducts corresponding to the front surface of the lithium ion battery, and a sixth group of air ducts corresponding to the back surface of the lithium ion battery; the air outlet pipe of the refrigerator 31 is selectively communicated with one or more groups of air ducts 33 through an air duct selecting mechanism 32.
The working principle and the beneficial effects of the technical scheme are as follows:
when the lithium ion battery is cooled, the six groups of air ducts 33 respectively face six surfaces of the lithium ion battery, so that the lithium ion battery is cooled in all directions. And when the temperature of one side of the lithium ion battery needs to be controlled, the air outlet pipe of the refrigerator 31 is controlled to be communicated with the corresponding group of air channels 33 through the air channel selection mechanism 32. And a targeted lithium ion battery temperature control strategy is realized.
In one embodiment, there are three exit tubes for the refrigerator 31.
The working principle and the beneficial effects of the technical scheme are as follows:
three air outlet pipes of the refrigerator 31 can be selected to be closed or opened; the opening or closing of the air outlet pipe is realized by connecting an electromagnetic valve in the middle of the air outlet pipe, and the electromagnetic valve is electrically connected with the processor 2. The three air outlet pipes are communicated with the three air ducts 33 and correspond to three sides of the lithium ion battery, so that the temperature control of the diagonal point area of the lithium ion battery is realized.
In one embodiment, as shown in fig. 3, 4, 5 and 6, the air duct selection mechanism 32 includes: the motor 32-1, the first body 32-2 and the second body 32-3, wherein the first body 32-2 is rotatably connected with the second body 32-3; the periphery of the first main body 32-2 is provided with a transmission gear; the output end of the motor 32-1 is provided with a gear; the transmission gear is meshed with the gear; the second main body 32-3 is provided with six first through holes 32-5 which are arranged in an annular array, and each first through hole 32-5 is communicated with a group of air ducts 33; the first main body 32-2 is provided with three second through holes 32-4; the three second through holes 32-4 correspond in position to the three adjacent first through holes 32-5.
The working principle and the beneficial effects of the technical scheme are as follows:
the motor 32-1 rotates to drive the first body 32-2 to rotate relative to the second body 32-3 through the meshing of the gear and the transmission gear. The second through hole 32-4 is communicated with and separated from the first through hole 32-5, so that the selection of the outlet air of the refrigerator 31 on six surfaces of the lithium ion battery is realized, and the effect of accurately controlling the temperature of the lithium ion battery is achieved.
In one embodiment, as shown in fig. 6, the six first through holes 32-5 sequentially communicate the first set of air ducts, the third set of air ducts, the sixth set of air ducts, the second set of air ducts, the fourth set of air ducts, and the fifth set of air ducts in a counterclockwise order.
The working principle and the beneficial effects of the technical scheme are as follows:
the first group of air ducts, the third group of air ducts, the sixth group of air ducts, the second group of air ducts, the fourth group of air ducts and the fifth group of air ducts are sequentially communicated in a counterclockwise order through the six first through holes 32-5; when the second main body 32-3 and the first main body 32-2 rotate relatively, and when the air outlet pipes communicated with the three second through holes 32-4 are all opened, six corresponding modes exist, namely the first mode, and air is exhausted from the upper surface, the left side surface and the back surface of the lithium ion battery; in the second mode, air is discharged from the left side surface, the back surface and the lower surface of the lithium ion battery; in the third mode, air is exhausted from the back surface, the lower surface and the right side surface of the lithium ion battery at the same time; in the fourth mode, air is discharged from the lower surface, the right side surface and the front surface of the lithium ion battery at the same time; in the fifth mode, air is exhausted from the right side surface, the front surface and the upper surface of the lithium ion battery; and in the sixth mode, air is exhausted from the front surface, the upper surface and the left side surface of the lithium ion battery. The air outlet modes for all surfaces of the lithium ion battery opened by the single air pipe and the six air outlet modes are in accordance with each other, so that the implementation of the omnibearing temperature control strategy of the lithium ion battery is realized.
In one embodiment, processor 2 is electrically coupled to motor 32-1;
when the processor 2 determines the position of the point where the temperature of the lithium ion battery is the highest according to the temperature detected by the temperature sensor 1, the processor 2 controls the motor 32-1 to rotate to enable the first main body 32-2 and the second main body 32-3 to rotate, and the first through hole 32-5 communicated with the second through hole 32-4 is switched to enable the refrigerator 31 to give out air corresponding to the position of the point where the temperature is the highest.
The working principle and the beneficial effects of the technical scheme are as follows:
the processor 2 confirms the temperature of each part of the lithium ion battery through the temperature sensor 1, confirms the position of an area where the temperature needs to be controlled, such as a point with the highest temperature, then controls the first main body 32-2 and the second main body 32-3 to rotate, and realizes the air outlet alignment of the refrigerator 31 to the position needing to be controlled through different modes of connection of the first through hole 32-5 and the second through hole 32-4. For example, when the control area falls into the intersection position of the front surface, the upper surface and the left side surface of the lithium ion battery, a sixth mode is adopted, and air is exhausted from the front surface, the upper surface and the left side surface of the lithium ion battery, so that temperature control of the position is realized.
In one embodiment, the lithium ion battery thermal management system further comprises:
and the display is connected with the processor 2 and is used for displaying the space model of the lithium ion battery.
The working principle and the beneficial effects of the technical scheme are as follows:
a user can directly watch the space model of the lithium ion battery through the display, so that the temperature distribution of the lithium ion battery can be intuitively known.
In order to realize the communication connection between the lithium ion battery thermal management system and external equipment or a server; in one embodiment, the lithium ion battery thermal management system further comprises: and the communication module is connected with the processor 2 and is used for being in communication connection with an external server or an external device.
In one embodiment, the heat exchange device 3 further comprises a heater, and the heater comprises three air outlet pipes; as shown in fig. 7, the second body 32-3 further includes three third through holes 32-6, and the three third through holes 32-6 are communicated with three air outlet pipes of the heater in a one-to-one correspondence; the three third through holes 32-6 and the three second through holes 32-4 are distributed in a circular array.
The working principle and the beneficial effects of the technical scheme are as follows:
temperature control not only reduces temperature, but also increases temperature; when the local temperature of the lithium ion battery is too low, hot air is output through the heater to heat the too low temperature area of the lithium ion battery. The lithium ion battery can work in an ideal temperature range all the time through cooling or heating operation, and the working efficiency of the lithium ion battery is ensured.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010133287.0A CN111211379B (en) | 2020-03-01 | 2020-03-01 | A lithium-ion battery thermal management system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010133287.0A CN111211379B (en) | 2020-03-01 | 2020-03-01 | A lithium-ion battery thermal management system |
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| CN111211379A true CN111211379A (en) | 2020-05-29 |
| CN111211379B CN111211379B (en) | 2023-06-06 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111640897A (en) * | 2020-06-16 | 2020-09-08 | 建德希傅电子科技有限公司 | Power battery protection equipment |
| CN111890938A (en) * | 2020-07-31 | 2020-11-06 | 北京骑胜科技有限公司 | Battery management method, system, medium, battery, and electric vehicle |
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| CN105742752A (en) * | 2016-03-01 | 2016-07-06 | 河南科技大学 | Thermal management system for lithium-ion batteries |
| CN207587922U (en) * | 2017-09-28 | 2018-07-06 | 丁炜 | A kind of vehicle battery cooling device |
| CN109768350A (en) * | 2019-01-16 | 2019-05-17 | 徐沁墨 | A kind of new energy car battery heat management device |
| TW201937803A (en) * | 2018-02-09 | 2019-09-16 | 荷蘭商荷蘭Ｔｎｏ自然科學組織公司 | Battery pack and method for obtaining temperature measurements within a battery pack |
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2020
- 2020-03-01 CN CN202010133287.0A patent/CN111211379B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105742752A (en) * | 2016-03-01 | 2016-07-06 | 河南科技大学 | Thermal management system for lithium-ion batteries |
| CN207587922U (en) * | 2017-09-28 | 2018-07-06 | 丁炜 | A kind of vehicle battery cooling device |
| TW201937803A (en) * | 2018-02-09 | 2019-09-16 | 荷蘭商荷蘭Ｔｎｏ自然科學組織公司 | Battery pack and method for obtaining temperature measurements within a battery pack |
| CN109768350A (en) * | 2019-01-16 | 2019-05-17 | 徐沁墨 | A kind of new energy car battery heat management device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111640897A (en) * | 2020-06-16 | 2020-09-08 | 建德希傅电子科技有限公司 | Power battery protection equipment |
| CN111890938A (en) * | 2020-07-31 | 2020-11-06 | 北京骑胜科技有限公司 | Battery management method, system, medium, battery, and electric vehicle |
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| CN111211379B (en) | 2023-06-06 |
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Effective date of registration: 20240201 Address after: 300308 Tianjin Binhai New Area Free Trade Zone (Airport Economic Zone), northeast of the intersection of Central Avenue and East Fifth Road, Yijing Apartment 8-1-802 Patentee after: ZST (TIANJIN) ELECTRONIC TECHNOLOGY Co.,Ltd. Country or region after: China Address before: 224000 No. 1 Hope Avenue Middle Road, Tinghu District, Yancheng City, Jiangsu Province Patentee before: YANCHENG INSTITUTE OF TECHNOLOGY Country or region before: China |