CN104577212B - The composite structure and method of lithium battery pack - Google Patents
The composite structure and method of lithium battery pack Download PDFInfo
- Publication number
- CN104577212B CN104577212B CN201410843476.1A CN201410843476A CN104577212B CN 104577212 B CN104577212 B CN 104577212B CN 201410843476 A CN201410843476 A CN 201410843476A CN 104577212 B CN104577212 B CN 104577212B
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- CN
- China
- Prior art keywords
- lithium battery
- battery pack
- printed circuit
- circuit board
- composite structure
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- 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.)
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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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
-
- 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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Battery Mounting, Suspending (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
A kind of composite structure of lithium battery pack, including lithium battery pack and printed circuit board；The lithium battery pack includes the lithium battery group, the connection sheet that are formed by more than two lithium battery parallel connections；It is connected with each other by way of series connection between different lithium battery groups, the two poles of the earth of the lithium battery are welded on the printed circuit board by the connection sheet；The printed circuit board is equipped with the cabling that the lithium battery is made to form lithium battery pack combination.A kind of combined method of lithium battery pack is also disclosed.The readily replaceable battery core of the present invention, safety coefficient are high.
Description
Technical field
The present invention relates to field of lithium battery application, more particularly to the composite structure and method of a kind of lithium battery pack.
Background technology
It needs to use some large capacities in some large capacity stored energy application occasions such as electric vehicle, solar energy storage power station etc.
Battery pack, we term it Pack.The Pack of these usual large capacities is to pass through string and connection mode by the battery of low capacity
Composition, while also need to draw some signal wires, power cord and temperature acquisition line etc. and be supplied to BMS (Battery
Management System, battery management system) do corresponding acquisition and management.
However, the combination of existing battery pack (Battery Pack) is connected using spot welding or Laser Welding,
This requires be equipped with relevant tool and equipment in production so that battery core can not be replaced when safeguarding；Simultaneously using nickel sheet or
Copper sheet to all batteries are exactly an entirety afterwards together, cannot isolate welding battery when single battery core breaks down,
Safety coefficient is not high.
Invention content
Based on this, it is necessary to provide a kind of composite structure for being easier to replace the high lithium battery pack of battery core, safety coefficient and
Method.
A kind of composite structure of lithium battery pack, including lithium battery pack and printed circuit board；The lithium battery pack includes
Lithium battery group, the connection sheet formed by more than two lithium battery parallel connections；Between different lithium battery groups by way of series connection phase
It connects, the two poles of the earth of the lithium battery are welded on the printed circuit board by the connection sheet；On the printed circuit board
Equipped with the cabling that the lithium battery is made to form lithium battery pack combination.
The connection sheet is the nickel sheet or copper sheet of welding pin in one of the embodiments,.
Integrated short-circuit protection device on the printed circuit board is further included in one of the embodiments, for even
It is connected between single lithium battery and the busbar in parallel of lithium battery group to realize lithium battery short-circuit protection function.
The short-circuit protection device is fuse in one of the embodiments,.
Integrated temperature sensor, voltage acquisition on the printed circuit board is further included in one of the embodiments,
Circuit.
The temperature sensor is NTC thermo-sensitive resistors in one of the embodiments,.
The through-hole for setting and being used for ventilation and heat on the printed circuit board is further included in one of the embodiments,.
The position of the through-hole is located at the rectangle region surrounded using four lithium batteries by vertex in one of the embodiments,
The center in domain.
A kind of combined method of lithium battery pack, including：
Connection sheet is welded on the two poles of the earth of lithium battery group；
The connection sheet is welded on printed circuit board；
Scolding tin, which forms cabling, on the printed circuit board makes the lithium battery group form lithium battery pack combination；
Wherein, the lithium battery group is formed by Yi Shang lithium battery parallel connection on two, is passed through between different lithium battery groups
The mode of series connection forms lithium battery pack combination.
The connection sheet is the nickel sheet or copper sheet of welding pin in one of the embodiments,.
Lithium battery has been connect by the composite structure and method of above-mentioned lithium battery pack by using connection sheet with printed circuit board
Come, be then equipped with the cabling that the lithium battery is made to form lithium battery pack combination on a printed circuit, used in this way when safeguarding
Soldering iron can dismantle the battery core of lithium battery, realize the light replacement of battery core, and all lithium batteries become one can be with
The entirety of segmentation, so as to easily isolate single battery core of failure, safety coefficient is high.
Description of the drawings
Fig. 1 is the combining structure schematic diagram of lithium battery pack in an embodiment；
Fig. 2 is the short-circuit protection device schematic diagram integrated in embodiment illustrated in fig. 1 on a printed circuit；
Fig. 3 is the through-hole schematic diagram on printed circuit board in embodiment illustrated in fig. 1；
Fig. 4 is the combined method flow chart of lithium battery pack in an embodiment.
Specific embodiment
Fig. 1 is please referred to, is the combining structure schematic diagram of lithium battery pack in an embodiment.
The composite structure of the lithium battery pack includes lithium battery pack 110 and printed circuit board 120.Lithium battery pack 110 wraps
Lithium battery group, the connection sheet formed by more than two lithium battery parallel connections is included, between different lithium battery groups by way of series connection
It is connected with each other, the two poles of the earth of the lithium battery are welded on by the connection sheet on printed circuit board 120, on printed circuit board 120
Equipped with the cabling that the lithium battery is made to form lithium battery pack combination.
In the present embodiment, the connection sheet is the nickel sheet or copper sheet of welding pin.
The composite structure of the lithium battery pack further includes the short-circuit protection device being integrated on printed circuit board 110, for even
It is connected between single lithium battery and the busbar in parallel of lithium battery group to realize lithium battery short-circuit protection function.In the present embodiment,
The short-circuit protection device is 130 (not shown in figure 1) of fuse, each lithium battery is gone here and there again after a fuse 130
It is linked on the busbar in parallel 132 of lithium battery group, it is specific as shown in Figure 2.Fuse wire can be passed through when lithium battery is abnormal
130 are isolated to realize.Here busbar in parallel 132 refers to the common exit after more than two lithium battery parallel connections.
Further, it is (not shown that the temperature sensor being integrated on printed circuit board 110, voltage acquisition circuit are further included
Go out), finally drawn by a line terminal.It avoids and is drawn largely inside the composite structure of lithium battery pack well in this way
Temperature acquisition circuit and voltage acquisition circuit.In the present embodiment, the temperature sensor is NTC thermo-sensitive resistors.
In addition, 140 (not shown in figure 1) of through-hole for ventilation and heat is additionally provided on printed circuit board 110, it is specific as schemed
Shown in 3, the position of through-hole 140 is located at the center of the rectangular area surrounded using four lithium batteries by vertex.It in this way can be advantageous
With printed circuit board ventilation and heat, the position setting of through-hole 140 is uniformly so that the consistency of heat dissipation is more preferable.
Fig. 4 is please referred to, is the combined method flow chart of lithium battery pack in an embodiment.
The combined method of the lithium battery pack includes：
Step S110：Connection sheet is welded on the two poles of the earth of lithium battery group.
In the present embodiment, the connection sheet is the nickel sheet or copper sheet of welding pin.The lithium battery group is by two
What the parallel connection of more than lithium battery was formed.
Step S120：The connection sheet is welded on printed circuit board.
Thus lithium battery group and printed circuit board can be connected well.
Step S130：Scolding tin, which forms cabling, on the printed circuit board makes the lithium battery group form lithium battery package
It closes.
In the present embodiment, the lithium battery group is formed by more than two lithium battery parallel connections, different lithium battery groups
Between formed by way of series connection lithium battery pack combination.Lithium battery pack combination includes 6 lithium battery groups, it will be understood that
In other embodiment, the quantity of lithium battery group can also be with being changed according to actual requirement.
It is appreciated that it in other embodiments, further includes and integrates short-circuit protection device, temperature on the printed circuit board
The step of sensor and voltage acquisition circuit.
Lithium battery has been connect by the composite structure and method of above-mentioned lithium battery pack by using connection sheet with printed circuit board
Come, be then equipped with the cabling that the lithium battery is made to form lithium battery pack combination on a printed circuit, used in this way when safeguarding
Soldering iron can dismantle the battery core of lithium battery, realize the light replacement of battery core, and all lithium batteries become one can be with
The entirety of segmentation, so as to easily isolate single battery core of failure, safety coefficient is high.
Embodiment described above only expresses the several embodiments of the present invention, and description is more specific and detailed, but simultaneously
Cannot the limitation to the scope of the claims of the present invention therefore be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect range.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (8)
1. a kind of composite structure of lithium battery pack, which is characterized in that including lithium battery pack and printed circuit board；The lithium battery
Component includes the lithium battery group, the connection sheet that are formed by more than two lithium battery parallel connections；Pass through series connection between different lithium battery groups
Mode be connected with each other, the two poles of the earth of the lithium battery are welded on the printed circuit board by the connection sheet；The printing
Circuit board is equipped with the cabling that the lithium battery is made to form lithium battery pack combination；It further includes and integrates on the printed circuit board
Short-circuit protection device, for being connected between single lithium battery and the busbar in parallel of lithium battery group to realize lithium battery short-circuit protection
Function；Integrated temperature sensor, voltage acquisition circuit on the printed circuit board is further included, finally by a line terminal
It draws.
2. the composite structure of lithium battery pack according to claim 1, which is characterized in that the connection sheet is welding pin
Nickel sheet or copper sheet.
3. the composite structure of lithium battery pack according to claim 1, which is characterized in that the short-circuit protection device is insurance
Silk.
4. the composite structure of lithium battery pack according to claim 1, which is characterized in that the temperature sensor is NTC temperature
Quick resistance.
5. the composite structure of lithium battery pack according to claim 1, which is characterized in that further include and be located at the printed circuit
The through-hole of ventilation and heat is used on plate.
6. the composite structure of lithium battery pack according to claim 5, which is characterized in that the position of the through-hole is located at four
The center for the rectangular area that a lithium battery is surrounded by vertex.
7. a kind of combined method of lithium battery pack, which is characterized in that including：
Connection sheet is welded on the two poles of the earth of lithium battery group；
The connection sheet is welded on printed circuit board；
Scolding tin, which forms cabling, on the printed circuit board makes the lithium battery group form lithium battery pack combination；
Wherein, the lithium battery group is formed by more than two lithium battery parallel connections, passes through series connection between different lithium battery groups
Mode formed lithium battery pack combination.
8. the combined method of lithium battery pack according to claim 7, which is characterized in that the connection sheet is welding pin
Nickel sheet or copper sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410843476.1A CN104577212B (en) | 2014-12-30 | 2014-12-30 | The composite structure and method of lithium battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410843476.1A CN104577212B (en) | 2014-12-30 | 2014-12-30 | The composite structure and method of lithium battery pack |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104577212A CN104577212A (en) | 2015-04-29 |
| CN104577212B true CN104577212B (en) | 2018-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410843476.1A Active CN104577212B (en) | 2014-12-30 | 2014-12-30 | The composite structure and method of lithium battery pack |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105336996B (en) * | 2015-09-28 | 2019-02-15 | 小米科技有限责任公司 | The terminal of battery and the application battery |
| CN107331826B (en) * | 2016-04-28 | 2023-07-04 | 周伟 | Connection method of power battery pack and battery pack produced by using same |
| CN106328847A (en) * | 2016-09-27 | 2017-01-11 | 深圳市沃特玛电池有限公司 | Battery module structure |
| CN207282573U (en) * | 2017-01-17 | 2018-04-27 | 南京德朔实业有限公司 | Wearable battery pack |
| CN106785224B (en) * | 2017-03-10 | 2023-09-19 | 苏州索尔智行新能源科技有限公司 | Radiating assembly of vehicle-mounted battery |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102354774A (en) * | 2011-09-23 | 2012-02-15 | 深圳先进储能材料国家工程研究中心有限公司 | Battery power supply device |
| CN103325979A (en) * | 2012-03-21 | 2013-09-25 | 新普科技股份有限公司 | Battery module |
| CN203596379U (en) * | 2013-11-21 | 2014-05-14 | 广州明美电子有限公司 | Power battery pack for electric bicycle |
| CN203910904U (en) * | 2014-05-26 | 2014-10-29 | 深圳市豪鹏科技有限公司 | Power battery pack |
-
2014
- 2014-12-30 CN CN201410843476.1A patent/CN104577212B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102354774A (en) * | 2011-09-23 | 2012-02-15 | 深圳先进储能材料国家工程研究中心有限公司 | Battery power supply device |
| CN103325979A (en) * | 2012-03-21 | 2013-09-25 | 新普科技股份有限公司 | Battery module |
| CN203596379U (en) * | 2013-11-21 | 2014-05-14 | 广州明美电子有限公司 | Power battery pack for electric bicycle |
| CN203910904U (en) * | 2014-05-26 | 2014-10-29 | 深圳市豪鹏科技有限公司 | Power battery pack |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104577212A (en) | 2015-04-29 |
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