CN203134922U - Serial connection battery pack - Google Patents
Serial connection battery pack Download PDFInfo
- Publication number
- CN203134922U CN203134922U CN2013201273810U CN201320127381U CN203134922U CN 203134922 U CN203134922 U CN 203134922U CN 2013201273810 U CN2013201273810 U CN 2013201273810U CN 201320127381 U CN201320127381 U CN 201320127381U CN 203134922 U CN203134922 U CN 203134922U
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- China
- Prior art keywords
- battery
- series
- voltage
- management module
- serial connection
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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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- 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 utility model relates to a serial connection battery pack. The serial connection battery pack comprises a plurality of battery monomers which are connected in series and a battery management module, wherein voltage sampling lines are arranged on a positive pole and a negative pole of each battery monomer, and the voltage sampling lines are used for transmitting voltage data to the battery management module. As the voltage sampling lines are arranged on the positive poles and the negative poles, a voltage signal of the positive pole or the negative pole of each battery monomer can be accurately transmitted to the battery management system.
Description
[technical field]
The utility model relates to a kind of series battery.
[background technology]
Along with petroleum resources reduce day by day and the pollution of environment day by day serious, the protection environment, energy-saving and emission-reduction have become present trend and trend in the world.Under this background, in recent years, the motor vehicle that with the battery is major impetus source or partial power source (mainly comprises hybrid vehicle, the plug-in hybrid car, engender and increasing that pure electric vehicle) the carbon emission amount of motor vehicle is less than the traditional combustion engine automobile, the carbon emission of pure electric vehicle even be zero, and have the high characteristics of energy conversion efficiency, this makes people electric automobile is considered as an important selection of following replace internal combustion engines car.
At present, the main selection of electric automobile power battery is lithium ion battery, traditional cylindrical lithium ion battery (common has 18650 types, 26650 types) though be widely used in 3C Product (mobile phone, computer, digital camera) power supply, but traditional lithium ion battery is because the influence of the character of itself material and shape design, be easy to generate thermal runaway phenomenon, lithium ion battery burning just took place repeatedly in the cells in notebook computer field cause the event of recalling.This make people with lithium ion battery when being applied to electric automobiles, be faced with the test of fail safe.So, in order to improve the security performance of lithium ion battery, in recent years, people develop the lithium ion battery of some new structures in succession, soft-package battery (soft-bag battery or claim coffee-bag battery) for example, compare with traditional column lithium ion battery, soft-package battery or rectangular cell have than columniform lithium ion battery and have better heat dispersion.So present most electric automobiles adopt the soft-package battery monomer to constitute the electrokinetic cell bag.
Present batteries of electric automobile group often adopts the mode of series connection to carry out in groups, series battery generally also comprises a battery management module (BMS), battery management module need be monitored the voltage data of series battery, thereby guarantee the normal operation of battery pack and find fault, common series battery voltage sampling method is (seeing illustrated in Figure 1) at present: only by the positive pole at each battery cell voltage sample line measurement voltage signal is set, perhaps only on the negative pole by each battery cell voltage sample line measurement voltage signal is set.This method has its shortcoming, because in the series connection system, the positive pole of a certain battery cell is connected by lead or pole piece with the negative pole of next battery cell, these connect lead or pole piece itself has certain resistance, so in fact the voltage drop between the adjacent voltage sample line should comprise the voltage drop of this part resistance, but actual measurement data but can not be entered the data computation of this part voltage drop, the parameter that can cause BMS to obtain like this is accurate inadequately, thereby influences BMS for judgment accuracy and the precision of series-connected cell system.
[utility model content]
The purpose of this utility model is: a kind of series-connected cell module is provided, can accurately reports the information of voltage of battery pack to battery management module.
In order to achieve the above object, the technical solution adopted in the utility model is: a kind of series battery, it comprises a plurality of series connected battery monomers and battery management module, positive pole and negative pole at described each battery cell are provided with the voltage sample line, and described voltage sample line is transferred to battery management module with voltage data.
Owing on anodal and negative pole, all be provided with the voltage sample line, can transmit the voltage signal of each battery cell positive pole or negative pole exactly to battery management system.
As optimized technical scheme, described battery cell is soft-package battery.
[description of drawings]
Fig. 1 is the schematic diagram of series battery in the prior art;
Fig. 2 is the schematic diagram of an embodiment of the utility model;
Wherein: 1. battery management module; 2. battery cell; 3. voltage sample line; 4. connection lead.
[embodiment]
Embodiment
As schematically shown in Figure 2: a kind of series battery, it comprises a plurality of series connected battery monomers 2 and battery management module 1, positive pole and negative pole at described each battery cell 2 are provided with voltage sample line 3, and described voltage sample line 3 is transferred to battery management module 1 with voltage data.Described battery cell 2 is soft-package battery.
Protection range of the present utility model is not limited in embodiment, and all variations of doing under the utility model spirit and change all should drop within the utility model protection range.
Claims (2)
1. series battery, it comprises a plurality of series connected battery monomers and battery management module, it is characterized in that: positive pole and negative pole at described each battery cell are provided with the voltage sample line, and described voltage sample line is transferred to battery management module with voltage data.
2. series battery as claimed in claim 1, it is characterized in that: described battery cell is soft-package battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201273810U CN203134922U (en) | 2013-03-19 | 2013-03-19 | Serial connection battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201273810U CN203134922U (en) | 2013-03-19 | 2013-03-19 | Serial connection battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203134922U true CN203134922U (en) | 2013-08-14 |
Family
ID=48942865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013201273810U Expired - Lifetime CN203134922U (en) | 2013-03-19 | 2013-03-19 | Serial connection battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203134922U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105870391A (en) * | 2016-05-13 | 2016-08-17 | 广西师范大学 | Serial battery pack used for power-driven bamboo raft |
| CN105954566A (en) * | 2016-06-17 | 2016-09-21 | 张家港市泓溢电源科技有限公司 | Lead acid battery pack voltage sampling form |
| CN109387785A (en) * | 2018-12-05 | 2019-02-26 | 东莞博力威电池有限公司 | A kind of single-unit System of voltage acquisition of multi-string battery group |
-
2013
- 2013-03-19 CN CN2013201273810U patent/CN203134922U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105870391A (en) * | 2016-05-13 | 2016-08-17 | 广西师范大学 | Serial battery pack used for power-driven bamboo raft |
| CN105954566A (en) * | 2016-06-17 | 2016-09-21 | 张家港市泓溢电源科技有限公司 | Lead acid battery pack voltage sampling form |
| CN109387785A (en) * | 2018-12-05 | 2019-02-26 | 东莞博力威电池有限公司 | A kind of single-unit System of voltage acquisition of multi-string battery group |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 313000 Huzhou economic and Technological Development Zone, Zhejiang, Hung Fung Road, No. 2198 Patentee after: MICROVAST POWER SYSTEMS Co.,Ltd. Address before: 313000 Zhejiang Province, Huzhou City Road No. 1555 sunny Industrial Science and Technology Park 1 Patentee before: MICROVAST POWER SYSTEMS Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130814 |