CN108321463A - A kind of battery pack - Google Patents
A kind of battery pack Download PDFInfo
- Publication number
- CN108321463A CN108321463A CN201711404031.3A CN201711404031A CN108321463A CN 108321463 A CN108321463 A CN 108321463A CN 201711404031 A CN201711404031 A CN 201711404031A CN 108321463 A CN108321463 A CN 108321463A
- Authority
- CN
- China
- Prior art keywords
- battery
- temperature
- heating
- temperature sensor
- management system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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
- H01M10/61—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
- H01M10/65—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
-
- 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 present invention provides a kind of battery pack, including battery modules, temperature sensor and the battery management system being electrically connected respectively with temperature sensor with battery modules；Battery modules include multiple sequentially connected module group units, and each module group unit includes multiple single batteries；Single battery includes battery main body and the heating structure that is wrapped on battery main body；For measuring single battery temperature and the temperature data of acquisition being passed to battery management system, battery management system controls multiple heating structures and the disconnection of power supply according to the temperature data that temperature sensor acquires or is connected to temperature sensor；When the temperature of temperature sensor measurement is less than the first set temperature, battery management system controls each heating structure and is connected to power supply；When the temperature of temperature sensor measurement is higher than the second set temperature, battery management system controls heating structure and is disconnected with power supply.The battery pack efficiency of heating surface provided by the invention is high, homogeneous heating is stable and safety coefficient is high.
Description
【Technical field】
The present invention relates to power battery field more particularly to a kind of battery packs.
【Background technology】
Due to the excellent performance of lithium ion battery and being gradually improved for lithium ion battery technology, the application of lithium ion battery
It is more and more extensive, especially in electric vehicle, energy storage device and wearable device field.But lithium ion battery is with the drop of temperature
Low, discharge performance is gradually deteriorated；With the raising of discharge-rate, discharge capacity is gradually reduced.So only ensuring lithium-ion electric
Pond just can better use and maintain lithium ion battery in low temperature environment in normal charge and discharge.Current battery packet adds
Hot scheme is heated using heating tape, by gap that heating tape is inserted between single battery or is placed in multiple monomers electricity
It is heated on the surface of the battery modules of pond composition.That there are heating speeds is slow for this mode of heating, heats uneven, heating surface (area) (HS
The problems such as small, and the phenomenon that be easy to happen hot-spot, there are security risks.
In consideration of it, it is really necessary to provide a kind of new battery pack to overcome drawbacks described above.
【Invention content】
The object of the present invention is to provide a kind of efficiency of heating surface height, the battery packs that homogeneous heating is stable and safety coefficient is high.
To achieve the goals above, the present invention provides a kind of battery pack, including battery modules, for measuring the battery mould
The temperature sensor of group temperature and the battery management system being electrically connected respectively with the temperature sensor with the battery modules；
The battery modules include multiple sequentially connected module group units, and each module group unit includes multiple monomer electricity arranged in arrays
Pond；The single battery includes battery main body and the heating structure that is wrapped in outside the battery main body；The temperature sensor
For measuring the single battery temperature and the temperature data of acquisition being passed to the battery management system, the battery management
System controls the multiple heating structure and the disconnection of power supply according to the temperature data that the temperature sensor acquires or is connected to；Institute
When stating the temperature of temperature sensor measurement less than the first set temperature, the battery management system controls each heating structure connection
Power supply, the heating structure are respectively each battery main body heating；When the temperature of temperature sensor measurement is higher than the second setting temperature
When spending, the battery management system controls the heating structure and is disconnected with power supply.
In a preferred embodiment, the heating structure include heating film and drawn from the heating film
One line ear and the second line ear；The heating film includes protective film and the heater strip that is placed in the protective film, and the heater strip is equal
It is even to be arranged in the protective film；The heating film has flexibility and shrinkage, and the material of the protective film is polyvinyl chloride,
The heater strip is flexible PCB, wherein the First Line ear draws from the both ends of the heater strip respectively with the second line ear
Go out.
In a preferred embodiment, the single battery further includes being respectively fixedly connected on the battery main body
Positive terminal and negative pole end；The First Line ear corresponds to the positive terminal of place single battery and is fixedly connected on the positive terminal,
The second line ear corresponds to the negative pole end of place single battery and is fixedly connected on the negative pole end.
In a preferred embodiment, the battery main body is cylindrical, and the positive terminal is distinguished with the negative pole end
Center location positioned at the battery main body both ends；The heating film is rectangular and length and width correspond respectively to the battery main body one
The circumferential length of end surfaces and the distance between the positive terminal and the negative pole end.
In a preferred embodiment, each battery modules further include positive exit and cathode exit, the electricity
The First Line ear of multiple single batteries in the module of pond is corresponding with the positive exit and is fixedly connected, the multiple monomer electricity
The second line ear in pond is corresponding with the cathode exit and is fixedly connected.
In a preferred embodiment, first set temperature is less than second set temperature.
In a preferred embodiment, first set temperature is 0 degree Celsius, and the second set temperature is 20 Celsius
Degree.
In a preferred embodiment, safety device is additionally provided on each heating structure, the safety device is used for
It measures the surface temperature of corresponding single battery and is to be judged whether to make the protection heating open circuit according to the surface temperature of measurement；Institute
The temperature for stating temperature sensor fails or the management thrashing and safety device measurement is higher than third set temperature
When, the safety device can make corresponding heating structure open circuit and then the heating film is made to stop heating；The third setting temperature
Degree is more than second set temperature.
In a preferred embodiment, third set temperature is 60 degrees Celsius.
Battery pack provided by the invention, the temperature judgement that the battery management system passes through the temperature sensor measurement are
No connection or the power supply for disconnecting the multiple heating structure, and then control whether to heat each single battery.In addition
The heating structure is additionally provided with safety device, further increases the safety of the heating structure.Battery provided by the invention
The packet efficiency of heating surface is high, homogeneous heating is stable and safety coefficient is high.
【Description of the drawings】
Fig. 1 is the structural schematic diagram of battery pack provided by the invention.
Fig. 2 is the structural schematic diagram of single battery in battery pack shown in FIG. 1.
Fig. 3 is the exploded view of single battery shown in Fig. 2.
【Specific implementation mode】
It is clear in order to make the purpose of the present invention, technical solution and advantageous effects be more clear, below in conjunction with attached drawing and
Specific implementation mode, the present invention will be described in further detail.It should be understood that specific implementation described in this specification
Mode is not intended to limit the present invention just for the sake of explaining the present invention.
Please refer to Fig. 1, the present invention provides a kind of battery pack 100, including battery modules 10, for measuring the battery modules
The temperature sensor 20 of 10 temperature and the cell tube being electrically connected respectively with the temperature sensor 20 with the battery modules 10
Reason system 30.
Please with reference to Fig. 2 and Fig. 3, the battery modules 10 include multiple sequentially connected module group units 101, Mei Gemo
Group unit 101 includes multiple single batteries 11 arranged in arrays.The single battery 11 includes battery main body 111, sets respectively
The positive terminal 112 being placed on the battery main body 111 and negative pole end 113 and the heating being wrapped in outside the battery main body 111
Structure 114.
The heating structure 114 includes heating film 1141 and the First Line ear 1142 drawn from the heating film 1141
And the second line ear 1143.The heating film 1141 includes protective film 1144 and the heater strip being placed in the protective film 1144
1145, the heater strip 1145 is uniformly arranged in the protective film 1144.The heating film 1141 has flexibility and shrinks
Property, specifically, the material of the protective film 1144 is polyvinyl chloride, the heater strip 1145 is flexible PCB, wherein described
First Line ear 1142 is drawn from the both ends of the heater strip 1145 respectively with the second line ear 1143.
In present embodiment, the battery main body 111 is cylindrical, and the positive terminal 112 is located at the negative pole end 113
The center location at 111 both ends of the battery main body.The heating film 1141 is rectangular and length and width correspond respectively to the battery master
The circumferential length and the distance between the positive terminal 112 and the negative pole end 113 of 111 end surface of body.Implement in others
In mode, the battery main body 10 can also be rectangular or other shapes.
The First Line ear 1142 and the second line ear 1143 are for being connected to power supply.In present embodiment, described first
Line ear 1142 corresponds to the positive terminal 112 of place single battery 11 and is fixedly connected on the positive terminal 112, the second line ear
1143 correspond to the negative pole end 113 of place single battery 11 and are fixedly connected on the negative pole end 113.In other embodiments
In, each battery modules 10 further include positive exit 102 and cathode exit 103, multiple lists in the battery modules 10
The First Line ear 1142 of body battery 11 is corresponding with the positive exit 102 and is fixedly connected, the multiple single battery 11
Second line ear 1143 is corresponding with the cathode exit 103 and is fixedly connected.
The temperature sensor 20 is for measuring 11 temperature of the single battery and the temperature data of acquisition being passed to institute
Battery management system 30 is stated, described in the temperature data control that the battery management system 30 is acquired according to the temperature sensor 20
Multiple heating structures 114 and the disconnection of power supply are connected to.Specifically, the temperature that the temperature sensor 20 measures is set less than first
When constant temperature is spent, the battery management system 30 controls each heating structure 40 and is connected to power supply, and the heating structure 114 is respectively every
A battery main body 10 heats；When the temperature that temperature sensor 20 measures is higher than the second set temperature, the battery management system
The 30 controls heating structure 114 is disconnected with power supply, and the heating structure 114 stops heating.Wherein described first set temperature
Less than second set temperature, specifically, first set temperature is 0 degree Celsius, the second set temperature is 20 degrees Celsius.
In addition it is additionally provided with safety device 1146 on each heating structure 114, the safety device 1146 is used for measuring pair
It answers the surface temperature of single battery 11 and is to be judged whether to keep the heating structure 114 breaking according to the surface temperature of measurement.Tool
Body, when the temperature of the failure of the temperature sensor 20 or the management system 30 failure and the measurement of the safety device 1146
When higher than third set temperature, the safety device 1146 can make the open circuit of corresponding heating structure 114 and then make the heating film
114 stop heating.In present embodiment, the third set temperature is more than second set temperature, specifically, third is set
Temperature is 60 degrees Celsius.
The battery pack 100 further includes for accommodating the battery modules 10, the temperature sensor 20 and the electricity
Pond manages the box shell 40 of system 30.
Battery pack 100 provided by the invention, the temperature that the battery management system 30 is measured by the temperature sensor 20
Degree judges whether the power supply for being connected to or disconnecting the multiple heating structure 114, and then controls whether to each single battery 11
It is heated.In addition the heating structure 114 is additionally provided with safety device 116, further increases the peace of the heating structure 114
Quan Xing.100 efficiency of heating surface of battery pack provided by the invention is high, homogeneous heating is stable and safety coefficient is high.
The present invention is not only in the description and the implementation described, therefore for the personnel of familiar field
Other advantage and modification is easily implemented, therefore in the essence without departing substantially from universal defined by claim and equivalency range
In the case of refreshing and range, the present invention is not limited to specific details, representative equipment and diagrams shown and described herein
Example.
Claims (10)
1. a kind of battery pack, it is characterised in that：Temperature sensor including battery modules, for measuring the battery modules temperature
And the battery management system being electrically connected respectively with the temperature sensor with the battery modules；The battery modules include more
A sequentially connected module group unit, each module group unit include multiple single batteries arranged in arrays；The single battery packet
The heating structure for including battery main body and being wrapped in outside the battery main body；The temperature sensor is for measuring the monomer electricity
The temperature data of acquisition is simultaneously passed to the battery management system by pond temperature, and the battery management system is passed according to the temperature
The temperature data of sensor acquisition controls the multiple heating structure and the disconnection of power supply or is connected to；The temperature sensor measurement
When temperature is less than the first set temperature, the battery management system controls each heating structure and is connected to power supply, the heating structure
Respectively each battery main body heating；When the temperature of temperature sensor measurement is higher than the second set temperature, the battery management
System controls the heating structure and is disconnected with power supply.
2. battery pack as described in claim 1, it is characterised in that：The heating structure includes heating film and from the heating
The First Line ear and the second line ear drawn on film；The heating film includes protective film and the heater strip that is placed in the protective film,
The heater strip is uniformly arranged in the protective film；The wherein described First Line ear is with the second line ear respectively from the heating
It draws at the both ends of silk.
3. battery pack as claimed in claim 2, it is characterised in that：The material of the protective film is polyvinyl chloride, the heating
Silk is flexible PCB.
4. battery pack as claimed in claim 2, it is characterised in that：The single battery further includes being respectively arranged at the battery
Positive terminal in main body and negative pole end；The First Line ear corresponds to the positive terminal of place single battery and is fixedly connected on described
Positive terminal, the second line ear correspond to the negative pole end of place single battery and are fixedly connected on the negative pole end.
5. battery pack as claimed in claim 4, it is characterised in that：The battery main body is cylindrical, the positive terminal and institute
State the center location that negative pole end is located at the battery main body both ends；The heating film is rectangular and length and width correspond respectively to institute
State the circumferential length and the distance between the positive terminal and the negative pole end of battery main body end surface.
6. battery pack as claimed in claim 2, it is characterised in that：Each battery modules further include that positive exit draws with cathode
Outlet, the First Line ear of multiple single batteries in the battery modules is corresponding with the positive exit and is fixedly connected, institute
The the second line ear for stating multiple single batteries is corresponding with the cathode exit and be fixedly connected.
7. battery pack as described in claim 1, it is characterised in that：First set temperature is less than the second setting temperature
Degree.
8. battery pack as claimed in claim 7, it is characterised in that：First set temperature is 0 degree Celsius, the second setting temperature
Degree is 20 degrees Celsius.
9. battery pack as claimed in claim 8, it is characterised in that：It is additionally provided with safety device on each heating structure, it is described
Safety device is used for measuring the surface temperature of corresponding single battery and is to be judged whether to make described add according to the surface temperature of measurement
Heat structure open circuit；The temperature that the temperature sensor fails or the management thrashing and the safety device measure is higher than
When third set temperature, the safety device can make corresponding heating structure open circuit and then the heating film is made to stop heating；Institute
It states third set temperature and is more than second set temperature.
10. battery pack as claimed in claim 9, it is characterised in that：Third set temperature is 60 degrees Celsius.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711404031.3A CN108321463A (en) | 2017-12-22 | 2017-12-22 | A kind of battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711404031.3A CN108321463A (en) | 2017-12-22 | 2017-12-22 | A kind of battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108321463A true CN108321463A (en) | 2018-07-24 |
Family
ID=62893200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711404031.3A Pending CN108321463A (en) | 2017-12-22 | 2017-12-22 | A kind of battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108321463A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109585976A (en) * | 2018-12-14 | 2019-04-05 | 蜂巢能源科技有限公司 | Battery modules heating film, battery pack and its lower case and battery packages method of completing the square |
| CN109728367A (en) * | 2018-12-29 | 2019-05-07 | 联想(北京)有限公司 | Battery, battery management method and battery control method |
| CN113906621A (en) * | 2019-11-13 | 2022-01-07 | 株式会社Lg新能源 | Battery module and battery pack including the same |
| CN114335819A (en) * | 2021-11-29 | 2022-04-12 | 东风柳州汽车有限公司 | Power battery pack heating device, power battery pack and electric automobile |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109585976A (en) * | 2018-12-14 | 2019-04-05 | 蜂巢能源科技有限公司 | Battery modules heating film, battery pack and its lower case and battery packages method of completing the square |
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| CN114335819A (en) * | 2021-11-29 | 2022-04-12 | 东风柳州汽车有限公司 | Power battery pack heating device, power battery pack and electric automobile |
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| PB01 | Publication | ||
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| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20191029 Address after: 518000 Shenyu Science and Technology Park, No. 68 Lanjingbei Road, Laokeng Community, Longtian Street, Pingshan District, Shenzhen City, Guangdong Province, 101 Applicant after: Shenzhen Anding New Energy Technology Development Co.,Ltd. Address before: 518000 Guangdong city of Shenzhen province Pingshan Pingshan Zhu Keng industrial zone 3, 4 Building Community Applicant before: Shenzhen Optimum Battery Co.,Ltd. |
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Address after: 518000 3C, building 5, qiaochengfang, 4080 Qiaoxiang Road, Gaofa community, Shahe street, Nanshan District, Shenzhen, Guangdong Applicant after: Baolixin (Shenzhen) new energy technology development Co.,Ltd. Address before: 518000 workshop 101, No. 3, Shenyu science and Technology Park, No. 68, Lanjing North Road, Laokeng community, Longtian street, Pingshan District, Shenzhen City, Guangdong Province Applicant before: Shenzhen Anding New Energy Technology Development Co.,Ltd. |
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Effective date of registration: 20220214 Address after: 214100 No. 578-4, Yanxin Road, Huishan Economic Development Zone, Wuxi City, Jiangsu Province Applicant after: Baolixin (Wuxi) Power System Co.,Ltd. Address before: 518000 3C, building 5, qiaochengfang, 4080 Qiaoxiang Road, Gaofa community, Shahe street, Nanshan District, Shenzhen, Guangdong Applicant before: Baolixin (Shenzhen) new energy technology development Co.,Ltd. |
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Application publication date: 20180724 |