CN202435066U - Lithium-ion battery pack management system with two-way current limiting function - Google Patents
Lithium-ion battery pack management system with two-way current limiting function Download PDFInfo
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- CN202435066U CN202435066U CN2011205157152U CN201120515715U CN202435066U CN 202435066 U CN202435066 U CN 202435066U CN 2011205157152 U CN2011205157152 U CN 2011205157152U CN 201120515715 U CN201120515715 U CN 201120515715U CN 202435066 U CN202435066 U CN 202435066U
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- management system
- lithium
- current limiting
- ion battery
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Abstract
The utility model discloses a lithium-ion battery pack management system with a two-way current limiting function. The lithium-ion battery pack management system comprises a plurality of lithium-ion battery modules which are connected in series, a battery management system (BMS) and a current limiting controller, wherein the anodes of the lithium-ion battery modules which are connected in series, the current limiting controller, the BMS and the cathodes of the lithium-ion battery modules which are connected in series are sequentially connected in series to form a charging and discharging circuit, and the current limiting controller is used as a charging and discharging control end of the management system and connected with a power supply and a discharge output terminal. The management system has conventional protection functions including an overcharging protection function, an overdischarging protection function, a short-circuit protection function, a temperature protection function, a data recording and transmission communication function, an alarm function and an inside equalization function and also has a charging current limiting function and a discharging limiting function, i.e., two-way current limiting function is realized through the current limiting controller.
Description
Technical field
The utility model belongs to electricity field, the management system of lithium ion battery group especially, specifically a kind of lithium ion battery group management system with bidirectional current limiting.
Background technology
The fail safe of lithium ion battery is that the practitioner makes great efforts to capture one of difficulty always, and up to the present, battery pack in use can't rely on the autoprotection of battery fully, must make its ability safe operation by the electronic circuit protection in the external world.Such electronic circuit is exactly the management system of lithium ion battery; Whether decision allows battery set charge/discharge to reach that battery is not overcharged, overdischarge thereby management system is according to the height of internal system monomer battery voltage; The part management system also has short-circuit protection function, temperature protection function, data record and transfer function, warning function, internal balance function etc.; These measures all are protection, the alarms of setting from the angle of cell safety, do not consider the fail safe that the user supplies power.For satisfied reliability of supplying power, fail safe etc., the most frequently used way is the system redundancy setting, promptly carries out parallel operation to several system.Lithium ion battery group directly parallel connection is used; The problem that will solve at least is how to realize that current-sharing is equal flow management; The scheme that has is to utilize extraneous relaying protection to change, but cost performance is low, and the power supply power-fail that system forms switching time can not satisfy load request; Defectives such as the total system power in parallel connection back can not strengthen are more, can not obtain all the time promoting.
Summary of the invention
The purpose of the utility model is to realize the problem of equal flow management to the lithium ion battery group of parallel connection, proposes a kind of lithium ion battery group management system with bidirectional current limiting.
The technical scheme of the utility model is:
A kind of lithium ion battery group management system with bidirectional current limiting; It comprises lithium ionic cell module, battery management system BMS and the Current limited Control device of a plurality of series connection; The negative pole of the positive pole of the lithium ionic cell module of described series connection, Current limited Control device, battery management system BMS and lithium ionic cell module is connected in series successively; Constitute charging and discharging circuit, the Current limited Control device connects power supply and discharge lead-out terminal as the control end that discharges and recharges of management system.
The lithium ionic cell module of the utility model comprises the ferric phosphate lithium cell of a plurality of series connection.
The lithium ionic cell module of the utility model comprises 10-20 ferric phosphate lithium cell.
The battery management system BMS of the utility model connects heating film.
The beneficial effect of the utility model:
The utility model is stable, reliable for the power supply that guarantees the power supply of lithium ion battery group, can realize redundant parallel operation, and a kind of lithium ion battery group management system that does not receive load and parallelly connected restricted number is provided.This management system is except that possessing conventional defencive function: overcharge protection, deep-discharge protection, short-circuit protection function, temperature protection function, data record and transport communication function, warning function, the internal balance function; Also have charging current limiter function and discharge current-limiting function, promptly realize the bidirectional current limiting function through the Current limited Control device.In the scene that the lithium ion battery group parallel connection of practical application is used; Pass through bidirectional current limiting; The power output that can control each Battery pack is a steady state value, and contains the batteries management system protection that discharging current is excessive and cause effectively, thereby makes load can continue operate as normal.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
As shown in Figure 1; A kind of lithium ion battery group management system with bidirectional current limiting; It comprises lithium ionic cell module, battery management system BMS and the Current limited Control device of a plurality of series connection; The negative pole of the positive pole of the lithium ionic cell module of described series connection, Current limited Control device, battery management system BMS and lithium ionic cell module is connected in series successively, constitutes charging and discharging circuit, and the Current limited Control device connects power supply and discharge lead-out terminal as the control end that discharges and recharges of management system.
The lithium ionic cell module of the utility model comprises the ferric phosphate lithium cell of a plurality of series connection.
The lithium ionic cell module of the utility model comprises 10-20 ferric phosphate lithium cell.
The battery management system BMS of the utility model connects heating film.
The utility model is stable, reliable for the power supply that guarantees the power supply of lithium ion battery group, can realize redundant parallel operation, and a kind of lithium ion battery group management system that does not receive load and parallelly connected restricted number is provided.This management system is except that possessing conventional defencive function: overcharge protection, deep-discharge protection, short-circuit protection function, temperature protection function, data record and transport communication function, warning function, the internal balance function; Also have charging current limiter function and discharge current-limiting function, promptly realize the bidirectional current limiting function through the Current limited Control device.
The utility model does not relate to all identical with the prior art prior art that maybe can adopt of part to be realized.
Claims (4)
1. lithium ion battery group management system with bidirectional current limiting; It is characterized in that it comprises lithium ionic cell module, battery management system BMS and the Current limited Control device of a plurality of series connection; The negative pole of the positive pole of the lithium ionic cell module of described series connection, Current limited Control device, battery management system BMS and lithium ionic cell module is connected in series successively; Constitute charging and discharging circuit, the Current limited Control device connects power supply and discharge lead-out terminal as the control end that discharges and recharges of management system.
2. the lithium ion battery group management system with bidirectional current limiting according to claim 1 is characterized in that described lithium ionic cell module comprises the ferric phosphate lithium cell of a plurality of series connection.
3. the lithium ion battery group management system with bidirectional current limiting according to claim 1 is characterized in that described lithium ionic cell module comprises 10-20 ferric phosphate lithium cell.
4. the lithium ion battery group management system with bidirectional current limiting according to claim 1 is characterized in that described battery management system BMS connects heating film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205157152U CN202435066U (en) | 2011-12-12 | 2011-12-12 | Lithium-ion battery pack management system with two-way current limiting function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205157152U CN202435066U (en) | 2011-12-12 | 2011-12-12 | Lithium-ion battery pack management system with two-way current limiting function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202435066U true CN202435066U (en) | 2012-09-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205157152U Expired - Lifetime CN202435066U (en) | 2011-12-12 | 2011-12-12 | Lithium-ion battery pack management system with two-way current limiting function |
Country Status (1)
| Country | Link |
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| CN (1) | CN202435066U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103779620A (en) * | 2012-10-24 | 2014-05-07 | 丰田自动车株式会社 | Electrical storage system |
| CN107994640A (en) * | 2017-12-18 | 2018-05-04 | 江苏双登富朗特新能源有限公司 | The battery management system and its management method of passive trigger-type charging current limiter |
-
2011
- 2011-12-12 CN CN2011205157152U patent/CN202435066U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103779620A (en) * | 2012-10-24 | 2014-05-07 | 丰田自动车株式会社 | Electrical storage system |
| CN103779620B (en) * | 2012-10-24 | 2016-02-10 | 丰田自动车株式会社 | Accumulating system |
| CN107994640A (en) * | 2017-12-18 | 2018-05-04 | 江苏双登富朗特新能源有限公司 | The battery management system and its management method of passive trigger-type charging current limiter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 225526 No. 666 Tianmu Road, Jiangyan Economic Development Zone, Taizhou, Jiangsu Patentee after: Jiangsu Shuangdeng frontan new energy Co. Ltd. Address before: Double Dengke Park Liang Xu town of Jiangyan city in Jiangsu province Taizhou City, No. 1, 225526 Patentee before: Jiangsu Front New Energy Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120912 |