CN104577212A - Combination structure and method of lithium battery packs - Google Patents
Combination structure and method of lithium battery packs Download PDFInfo
- Publication number
- CN104577212A CN104577212A CN201410843476.1A CN201410843476A CN104577212A CN 104577212 A CN104577212 A CN 104577212A CN 201410843476 A CN201410843476 A CN 201410843476A CN 104577212 A CN104577212 A CN 104577212A
- Authority
- CN
- China
- Prior art keywords
- lithium battery
- printed circuit
- circuit board
- combining structure
- bag according
- 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.)
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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
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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
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
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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
- 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
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- 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 combination structure of lithium battery packs comprises lithium battery assemblies and a printed circuit board, wherein each lithium battery assembly comprises a lithium battery pack formed by more than two lithium batteries connected in parallel as well as connecting pieces; different lithium battery packs are mutually connected in series, and two poles of each lithium battery are welded on the printed circuit board through the connecting pieces; wiring enabling the lithium batteries to form the lithium battery pack combination is arranged on the printed circuit board. The invention further discloses a combination method of the lithium battery packs. With the adoption of the combination structure and method of the lithium battery packs, cells are easy to replace, and the safety coefficient is high.
Description
Technical field
The present invention relates to field of lithium battery application, particularly relate to a kind of combining structure and method of lithium battery bag.
Background technology
Need to use some jumbo battery pack in some Large Copacity stored energy application occasion such as electric automobile, solar energy storage power stations etc., we are referred to as Pack.Usually these jumbo Pack by low capacity battery by string also connected mode form, also need to draw some holding wires, power line and temperature acquisition line etc. to be supplied to BMS (Battery Management System, battery management system) and to do corresponding collection and management simultaneously.
But the compound mode of existing power brick (Battery Pack) is all use spot welding or Laser Welding to connect, and this just requires to be equipped with relevant instrument and equipment when producing, and cannot change battery core when making to safeguard; Use simultaneously nickel sheet or copper sheet by welding battery to together afterwards all batteries be exactly an entirety, cannot isolate when single battery core breaks down, coefficient of safety is not high.
Summary of the invention
Based on this, be necessary to provide a kind of and more easily change battery core, the combining structure of lithium battery bag that coefficient of safety is high and method.
A combining structure for lithium battery bag, comprises lithium battery pack and printed circuit board (PCB); Described lithium battery pack comprises the lithium battery group, the brace that are formed by the parallel connection of two or more lithium battery; Be interconnected by the mode of series connection between different lithium battery groups, the two poles of the earth of described lithium battery by described brace welding on the printed circuit board; Described printed circuit board (PCB) is provided with the cabling making described lithium battery form the conjunction of lithium battery package.
Wherein in an embodiment, described brace is nickel sheet or the copper sheet of welding pin.
Wherein in an embodiment, also comprise integrated short-circuit protection device on the printed circuit board, for being connected between single lithium battery and the bus in parallel of lithium battery group to realize lithium battery short-circuit protection function.
Wherein in an embodiment, described short-circuit protection device is fuse.
Wherein in an embodiment, also comprise integrated temperature sensor, voltage acquisition circuit on the printed circuit board.
Wherein in an embodiment, described temperature sensor is NTC thermo-sensitive resistor.
Wherein in an embodiment, also comprise and establishing on the printed circuit board for the through hole of ventilation and heat.
Wherein in an embodiment, the position of described through hole is located at the center of the rectangular area surrounded for summit with four lithium batteries.
A combined method for lithium battery bag, comprising:
Brace is welded on the two poles of the earth of lithium battery group;
Described brace is welded on printed circuit board (PCB);
Scolding tin forms cabling and makes the conjunction of described lithium battery group formation lithium battery package on the printed circuit board;
Wherein, described lithium battery group is formed by lithium battery parallel connection above on two, and the mode by connecting between different lithium battery groups forms the conjunction of lithium battery package.
Wherein in an embodiment, described brace is nickel sheet or the copper sheet of welding pin.
Lithium battery and printed circuit board (PCB) couple together by adopting brace by the combining structure of above-mentioned lithium battery bag and method, then the cabling making described lithium battery form the conjunction of lithium battery package is provided with on a printed circuit, use flatiron the battery core of lithium battery can be dismantled like this when safeguarding, realize the light replacing of battery core, and all lithium batteries become the entirety that can split, thus can easily single the battery core broken down be isolated, coefficient of safety is high.
Accompanying drawing explanation
Fig. 1 is the combining structure schematic diagram of lithium battery bag in an embodiment;
Fig. 2 be embodiment illustrated in fig. 1 in integrated short-circuit protection device schematic diagram on a printed circuit;
Fig. 3 is the through hole schematic diagram on middle printed circuit board (PCB) embodiment illustrated in fig. 1;
Fig. 4 is the combined method flow chart of lithium battery bag in an embodiment.
Embodiment
Please refer to Fig. 1, is the combining structure schematic diagram of lithium battery bag in an embodiment.
The combining structure of this lithium battery bag comprises lithium battery pack 110 and printed circuit board (PCB) 120.Lithium battery pack 110 comprises the lithium battery group, the brace that are formed by the parallel connection of two or more lithium battery, be interconnected by the mode of series connection between different lithium battery groups, the two poles of the earth of described lithium battery are welded on printed circuit board (PCB) 120 by described brace, and printed circuit board (PCB) 120 is provided with the cabling making described lithium battery form the conjunction of lithium battery package.
In the present embodiment, described brace is nickel sheet or the copper sheet of welding pin.
The combining structure of this lithium battery bag also comprises the short-circuit protection device be integrated on printed circuit board (PCB) 110, for being connected between single lithium battery and the bus in parallel of lithium battery group to realize lithium battery short-circuit protection function.In the present embodiment, described short-circuit protection device is fuse 130 (not shown in figure 1), and each lithium battery is connected in series on the bus in parallel 132 of lithium battery group after a fuse 130 again, specifically as shown in Figure 2.Isolation is realized by fuse wire 130 when lithium battery occurs abnormal.Here bus in parallel 132 refers to the common exit after the parallel connection of two or more lithium battery.
Further, also comprise the temperature sensor be integrated on printed circuit board (PCB) 110, voltage acquisition circuit (scheming not shown), finally drawn by a line terminal.Avoid so well and draw a large amount of temperature acquisition circuits and voltage acquisition circuit in the combining structure inside of lithium battery bag.In the present embodiment, described temperature sensor is NTC thermo-sensitive resistor.
In addition, printed circuit board (PCB) 110 is also provided with through hole 140 (not shown in figure 1) for ventilation and heat, specifically as shown in Figure 3, the position of through hole 140 is located at the center of the rectangular area surrounded for summit with four lithium batteries.Can utilize printed circuit board (PCB) ventilation and heat like this, the position of through hole 140 is arranged evenly, makes the consistency of heat radiation better.
Please refer to Fig. 4, is the combined method flow chart of lithium battery bag in an embodiment.
The combined method of this lithium battery bag comprises:
Step S110: brace is welded on the two poles of the earth of lithium battery group.
In the present embodiment, described brace is nickel sheet or the copper sheet of welding pin.Described lithium battery group is formed by the parallel connection of two or more lithium battery.
Step S120: described brace is welded on printed circuit board (PCB).
So just can well lithium battery group and printed circuit board (PCB) be coupled together.
Step S130: scolding tin forms cabling and makes the conjunction of described lithium battery group formation lithium battery package on the printed circuit board.
In the present embodiment, described lithium battery group is formed by the parallel connection of two or more lithium battery, forms lithium battery package close between different lithium battery groups by the mode of series connection.This lithium battery package closes and comprises 6 lithium battery groups, and be appreciated that in other embodiments, the quantity of lithium battery group can also be followed and be changed according to actual requirement.
Be appreciated that in other embodiments, also comprise the step of integrated short-circuit protection device, temperature sensor and voltage acquisition circuit on the printed circuit board.
Lithium battery and printed circuit board (PCB) couple together by adopting brace by the combining structure of above-mentioned lithium battery bag and method, then the cabling making described lithium battery form the conjunction of lithium battery package is provided with on a printed circuit, use flatiron the battery core of lithium battery can be dismantled like this when safeguarding, realize the light replacing of battery core, and all lithium batteries become the entirety that can split, thus can easily single the battery core broken down be isolated, coefficient of safety is high.
The above embodiment only have expressed several execution mode of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with claims.
Claims (10)
1. a combining structure for lithium battery bag, is characterized in that, comprises lithium battery pack and printed circuit board (PCB); Described lithium battery pack comprises the lithium battery group, the brace that are formed by the parallel connection of two or more lithium battery; Be interconnected by the mode of series connection between different lithium battery groups, the two poles of the earth of described lithium battery by described brace welding on the printed circuit board; Described printed circuit board (PCB) is provided with the cabling making described lithium battery form the conjunction of lithium battery package.
2. the combining structure of lithium battery bag according to claim 1, is characterized in that, described brace is nickel sheet or the copper sheet of welding pin.
3. the combining structure of lithium battery bag according to claim 1; it is characterized in that; also comprise integrated short-circuit protection device on the printed circuit board, for being connected between single lithium battery and the bus in parallel of lithium battery group to realize lithium battery short-circuit protection function.
4. the combining structure of lithium battery bag according to claim 3, is characterized in that, described short-circuit protection device is fuse.
5. the combining structure of lithium battery bag according to claim 1, is characterized in that, also comprises integrated temperature sensor, voltage acquisition circuit on the printed circuit board.
6. the combining structure of lithium battery bag according to claim 5, is characterized in that, described temperature sensor is NTC thermo-sensitive resistor.
7. the combining structure of lithium battery bag according to claim 1, is characterized in that, also comprises and establishing on the printed circuit board for the through hole of ventilation and heat.
8. the combining structure of lithium battery bag according to claim 7, is characterized in that, the position of described through hole is located at the center of the rectangular area surrounded for summit with four lithium batteries.
9. a combined method for lithium battery bag, is characterized in that, comprising:
Brace is welded on the two poles of the earth of lithium battery group;
Described brace is welded on printed circuit board (PCB);
Scolding tin forms cabling and makes the conjunction of described lithium battery group formation lithium battery package on the printed circuit board;
Wherein, described lithium battery group is formed by the parallel connection of two or more lithium battery, forms lithium battery package close between different lithium battery groups by the mode of series connection.
10. the combined method of lithium battery bag according to claim 9, is characterized in that, described brace is nickel sheet or the copper sheet of welding pin.
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 true CN104577212A (en) | 2015-04-29 |
| CN104577212B 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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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105336996A (en) * | 2015-09-28 | 2016-02-17 | 小米科技有限责任公司 | Battery and terminal applying same |
| CN106328847A (en) * | 2016-09-27 | 2017-01-11 | 深圳市沃特玛电池有限公司 | Battery module structure |
| CN106785224A (en) * | 2017-03-10 | 2017-05-31 | 江苏索尔新能源科技股份有限公司 | A kind of radiating subassembly of on-vehicle battery |
| CN107331826A (en) * | 2016-04-28 | 2017-11-07 | 周伟 | The connection method of power battery pack and the battery pack produced with this method |
| CN108336259A (en) * | 2017-01-17 | 2018-07-27 | 南京德朔实业有限公司 | Wearable battery pack |
Citations (4)
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| 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 |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105336996A (en) * | 2015-09-28 | 2016-02-17 | 小米科技有限责任公司 | Battery and terminal applying same |
| CN107331826A (en) * | 2016-04-28 | 2017-11-07 | 周伟 | The connection method of power battery pack and the battery pack produced with this method |
| CN106328847A (en) * | 2016-09-27 | 2017-01-11 | 深圳市沃特玛电池有限公司 | Battery module structure |
| CN108336259A (en) * | 2017-01-17 | 2018-07-27 | 南京德朔实业有限公司 | Wearable battery pack |
| CN108336259B (en) * | 2017-01-17 | 2020-12-01 | 南京德朔实业有限公司 | Wearable battery pack |
| CN106785224A (en) * | 2017-03-10 | 2017-05-31 | 江苏索尔新能源科技股份有限公司 | A kind of radiating subassembly of on-vehicle battery |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104577212B (en) | 2018-06-19 |
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