CN203632291U - 25 serially-connected power lithium battery management acquisition module - Google Patents
25 serially-connected power lithium battery management acquisition module Download PDFInfo
- Publication number
- CN203632291U CN203632291U CN201320749414.5U CN201320749414U CN203632291U CN 203632291 U CN203632291 U CN 203632291U CN 201320749414 U CN201320749414 U CN 201320749414U CN 203632291 U CN203632291 U CN 203632291U
- Authority
- CN
- China
- Prior art keywords
- battery management
- string
- circuit
- serially
- lithium battery
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
The utility model discloses a 25 serially-connected power lithium battery management acquisition module which has the advantages of high utilization rate of battery management chip acquisition channel and low production cost. The 25 serially-connected power lithium battery management acquisition module comprises a battery sampling unit and a single chip microcomputer unit, wherein the battery sampling unit comprises two 12 serially-connected battery management chips, two 12 channel sampling filtering and equalizing circuits corresponding to the two 12 serially-connected battery management chips, and a 1 path of extension voltage sampling and equalizing circuit, the 12 channel sampling filtering and equalizing circuits are connected with voltage sampling channel pins and equalization control pins of the 12 serially-connected battery management chips, the 1 path of extension voltage sampling and equalizing circuit is connected with a GPIO interface of one of the 12 serially-connected battery management chips, the single chip microcomputer unit comprises two isolating communication modules and a single chip microcomputer, and the isolating communication modules are connected with the 12 serially-connected battery management chips and the single chip microcomputer. The 25 serially-connected power lithium battery management acquisition module has the beneficial effects of realizing the management acquisition function of the 25 serially-connected lithium battery, and being low in complexity of circuit design, high in utilization rate of the battery management chip acquisition channel and low in occupation cost.
Description
Technical field
The utility model relates to dynamic lithium battery management system correlative technology field, refers in particular to a kind of 25 string dynamic lithium battery management acquisition modules.
Background technology
Along with the development of lithium dynamical battery technology, the field of lithium dynamical battery application is more and more wider, especially in new-energy automobile and energy storage project, is used widely.For the security reliability that guarantees that lithium dynamical battery uses, various battery management system products arise at the historic moment.The acquisition module hardware technology of current battery management system adopts more supports the integrated chip of 6 strings, 12 strings, 14 strings to carry out the collection of battery cell voltage and temperature data, and therefore the monomer series-connected number of the largest battery of battery management acquisition module support is even number.Generally adopt 28 crosstalk pond acquisition modules (voltage sample channel utilization index is 89.3%) or 30 crosstalk ponds to gather mould (voltage sample channel utilization index is 83.3%) for the current solution of the actual battery system with 25 string battery cells.Because these scheme acquisition channels have more than neededly, cause channel utilization index can not reach 100%, and then cause cost waste.
Chinese patent Granted publication number: CN 201781036U, March 30 2011 Granted publication day, the temperature collect module of a kind of lithium ion battery and management system thereof is disclosed, this lithium ion battery comprises battery module and battery management system thereof, battery management system comprises temperature sensor module, described temperature sensor module is made up of temperature sensor bracket and temperature sensor circuit board, described temperature sensor circuit board is installed on temperature sensor bracket, and the base plate of temperature sensor bracket is provided with for being set with battery electrode column the installing hole coordinating.The weak point of this utility model is, still generally adopts traditional scheme for the solution of the battery system with 25 string battery cells, because traditional scheme acquisition channel has more than neededly, causes channel utilization index low, and then causes cost waste.
Utility model content
The utility model is to have above-mentioned deficiency in order to overcome in prior art, and the 25 string dynamic lithium battery management acquisition modules that a kind of battery management chip acquisition channel utilance is high and production cost is low are provided.
To achieve these goals, the utility model is by the following technical solutions:
A kind of 25 string dynamic lithium battery management acquisition modules, comprise battery sampling unit and single machine unit, described battery sampling unit comprises 2 12 string battery management chips, 2 12 channel sample filtering and equalizing circuit and 1 tunnel expansion voltage sample and equalizing circuits corresponding thereto, 12 described channel sample filtering and equalizing circuit connect voltage sample passage pin and the balanced pin of controlling of 12 string battery management chips, 1 described tunnel expansion voltage sample and equalizing circuit connect the GPIO interface of one of them 12 string battery management chip, described single machine unit comprises 2 isolation communication modules and single-chip microcomputer, described isolation communication module connects 12 string battery management chip and single-chip microcomputers.
This acquisition module utilizes the GPIO interface of existing 12 string battery management chips to be connected with 1 tunnel expansion voltage sample and equalizing circuit, just realized the management acquisition function for 25 series lithium batteries, with traditional scheme, 25 strings are needed to increase in addition battery management chip comparatively speaking, the complexity of circuit design is reduced, improve battery management chip acquisition channel utilance, and cost of possession reduces, design has reached the object that battery management chip acquisition channel utilance is high and production cost is low like this.
As preferably, described battery sampling unit also comprises 2 temperature collection circuits, and described temperature collection circuit connects 12 string battery management chips, and 1 described tunnel expansion voltage sample and equalizing circuit also connect the temperature acquisition interface of 12 string battery management chips.For carrying out the collection of temperature, so that understand the consistency of lithium battery.
As preferably, described single machine unit also comprises CAN transceiver module, and described CAN transceiver module connects single-chip microcomputer.Single-chip microcomputer is processed after receiving the data after conversion, and carry out information interaction by CAN transceiver module and outside, in the time of 25 series lithium battery consistency variation of external management, mutual by CAN transceiver module and single-chip microcomputer, make single-chip microcomputer formulate corresponding balance policy.
As preferably, described single machine unit also comprises DC/DC module, and described DC/DC module connects single-chip microcomputer.Be the voltage that is applicable to single-chip microcomputer by voltage transitions by DC/DC module, just with the work of single-chip microcomputer.
As preferably, described 1 tunnel expansion voltage sample and equalizing circuit comprise resistor voltage divider circuit, filter circuit and equalizing circuit, described resistor voltage divider circuit is connected with filter circuit, described resistor voltage divider circuit is all directly connected with the lithium battery being managed with equalizing circuit, described equalizing circuit is connected with the GPIO interface of 12 string battery management chips, and described filter circuit is connected with the temperature acquisition interface of 12 string battery management chips.For 1 tunnel expansion voltage sample and equalizing circuit, 12 string battery management chips are realized the equilibrium control for 1 joint lithium battery of corresponding management by controlling its GPIO interface.
The beneficial effects of the utility model are: utilize the GPIO interface of existing 12 string battery management chips to be connected with 1 tunnel expansion voltage sample and equalizing circuit, realize the management acquisition function for 25 series lithium batteries, the complexity of circuit design is low, put forward battery management chip acquisition channel utilance high, cost of possession is low.
Accompanying drawing explanation
Fig. 1 is functional block diagram of the present utility model;
Fig. 2 is the schematic block circuit diagram of 1 tunnel expansion voltage sample and equalizing circuit;
Fig. 3 is the circuit theory diagrams of 12 channel sample filtering and equalizing circuit;
Fig. 4 is the circuit theory diagrams of 1 tunnel expansion voltage sample and equalizing circuit;
Fig. 5 is the circuit theory diagrams of temperature collection circuit.
In figure: 1.DC/DC module, 2. single-chip microcomputer, 3.CAN transceiver module, 4. isolation communication module, 5. single machine unit, 6.12 string battery management chip, 7. battery sampling unit, 8.12 channel sample filtering and equalizing circuits, 9.1 tunnel expansion voltage sample and equalizing circuits, 10. temperature collection circuit, 11. filter circuits, 12. resistor voltage divider circuits, 13. equalizing circuits.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is further described.
As Fig. 1, in embodiment described in Fig. 2, a kind of 25 string dynamic lithium battery management acquisition modules, comprise battery sampling unit 7 and single machine unit 5, battery sampling unit 7 comprises 2 12 string battery management chips 6, 2 12 channel sample filtering and equalizing circuits 8 (as shown in Figure 3) corresponding thereto, 2 temperature collection circuits 10 (as shown in Figure 5) and 1 tunnel expansion voltage sample and equalizing circuit 9, 12 channel sample filtering and equalizing circuit 8 connect voltage sample passage pin and the balanced pin of controlling of 12 string battery management chips 6, temperature collection circuit 10 connects 12 string battery management chips 6, 1 tunnel expansion voltage sample and equalizing circuit 9 connect temperature acquisition interface and the GPIO interface of one of them 12 string battery management chip 6, single machine unit 5 comprises 2 isolation communication modules 4, single-chip microcomputer 2, CAN transceiver module 3 and DC/DC module 1, isolation communication module 4 connects 12 string battery management chips 6, isolation communication module 4, CAN transceiver module 3 is all connected single-chip microcomputer 2 with DC/DC module 1.Wherein: as shown in Figure 4,1 tunnel expansion voltage sample and equalizing circuit 9 comprise resistor voltage divider circuit 12, filter circuit 11 and equalizing circuit 13, resistor voltage divider circuit 12 is connected with filter circuit 11, resistor voltage divider circuit 12 is all directly connected with the lithium battery being managed with equalizing circuit 13, equalizing circuit 13 is connected with the GPIO interface of 12 string battery management chips 6, and filter circuit 11 is connected with the temperature acquisition interface of 12 string battery management chips 6.Wherein: what DC/DC module 1 adopted is LM 5574 chips, external voltage input is converted to the applicable voltage of single-chip microcomputer 2 by DC/DC module 1 and powers to single-chip microcomputer 2.In addition: what CAN transceiver module 3 adopted is TJA1050T chip, what single-chip microcomputer 2 adopted is MC9S08DZ32 chip, and what isolation communication module 4 adopted is ADUM2401 chip, and what 12 string battery management chips 6 adopted is LTC6802 or LTC6803 chip.
The battery sampling unit 7 of this 25 string dynamic lithium battery management acquisition module is by 2 12 channel sample filtering and voltage sample is expanded on equalizing circuit 8 and 1 tunnel and equalizing circuit 9 forms, form altogether 25 sampling channels, corresponding joint lithium battery, altogether corresponding 25 series lithium batteries of each passage.Lithium battery voltage signal, after 2 12 channel sample filtering and equalizing circuit 8, is delivered to 2 12 string battery management chips 6, and the AD that carries out lithium battery voltage signal by it gathers.And 1 tunnel expansion voltage sample and equalizing circuit 9 are connected to temperature acquisition interface and the GPIO interface of one of them 12 string battery management chip 6.For the collection of lithium battery temperature information, by temperature collection circuit 10, temperature sensor information is transferred to 12 string battery management chips 6.12 string battery management chips 6 convert after the voltage signal, temperature signal of lithium battery, are connected to respectively single-chip microcomputer 2 by isolation communication module 4.Single-chip microcomputer 2 is processed after receiving the data after conversion, and carries out information interaction by CAN transceiver module 3 and outside.In the time of 25 series lithium battery consistency variation of external management, mutual by CAN transceiver module 3 and single-chip microcomputer 2, single-chip microcomputer 2 is formulated corresponding balance policy, then by isolation communication module 4, balanced command information is sent to 12 string battery management chips 6,12 string battery management chips 6 are exported balanced control signal to 12 channel sample filtering and equalizing circuit 8 by its balanced pin of controlling, and carry out the equalization operation to lithium battery by it.Realize the equilibrium control for 1 joint lithium battery of corresponding management for 1 tunnel expansion voltage sample and equalizing circuit 9,12 string battery management chips 6 by controlling its GPIO interface.
Claims (5)
1. a string dynamic lithium battery management acquisition module, it is characterized in that, comprise battery sampling unit (7) and single machine unit (5), described battery sampling unit (7) comprises 2 12 string battery management chips (6), 2 12 channel sample filtering and equalizing circuit (8) and 1 tunnel expansion voltage sample and equalizing circuits (9) corresponding thereto, 12 described channel sample filtering and equalizing circuit (8) connect voltage sample passage pin and the balanced pin of controlling of 12 string battery management chips (6), 1 described tunnel expansion voltage sample and equalizing circuit (9) connect the GPIO interface of one of them 12 string battery management chip (6), described single machine unit (5) comprises 2 isolation communication modules (4) and single-chip microcomputers (2), described isolation communication module (4) connects 12 string battery management chip (6) and single-chip microcomputers (2).
2. a kind of 25 string dynamic lithium battery management acquisition modules according to claim 1, it is characterized in that, described battery sampling unit (7) also comprises 2 temperature collection circuits (10), described temperature collection circuit (10) connects 12 string battery management chips (6), and 1 described tunnel expansion voltage sample and equalizing circuit (9) also connect the temperature acquisition interface of 12 string battery management chips (6).
3. a kind of 25 string dynamic lithium battery management acquisition modules according to claim 1 and 2, it is characterized in that, described single machine unit (5) also comprises CAN transceiver module (3), and described CAN transceiver module (3) connects single-chip microcomputer (2).
4. a kind of 25 string dynamic lithium battery management acquisition modules according to claim 1 and 2, it is characterized in that, described single machine unit (5) also comprises DC/DC module (1), and described DC/DC module (1) connects single-chip microcomputer (2).
5. a kind of 25 string dynamic lithium battery management acquisition modules according to claim 2, it is characterized in that, described 1 tunnel expansion voltage sample and equalizing circuit (9) comprise resistor voltage divider circuit (12), filter circuit (11) and equalizing circuit (13), described resistor voltage divider circuit (12) is connected with filter circuit (11), described resistor voltage divider circuit (12) is all directly connected with the lithium battery being managed with equalizing circuit (13), described equalizing circuit (13) is connected with the GPIO interface of 12 string battery management chips (6), described filter circuit (11) is connected with the temperature acquisition interface of 12 string battery management chips (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320749414.5U CN203632291U (en) | 2013-11-22 | 2013-11-22 | 25 serially-connected power lithium battery management acquisition module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320749414.5U CN203632291U (en) | 2013-11-22 | 2013-11-22 | 25 serially-connected power lithium battery management acquisition module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203632291U true CN203632291U (en) | 2014-06-04 |
Family
ID=50818733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320749414.5U Expired - Fee Related CN203632291U (en) | 2013-11-22 | 2013-11-22 | 25 serially-connected power lithium battery management acquisition module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203632291U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107554347A (en) * | 2017-09-30 | 2018-01-09 | 浙江合众新能源汽车有限公司 | Power battery management system monomer intelligence sample device |
| CN114069794A (en) * | 2021-11-24 | 2022-02-18 | 捷程科技(无锡)有限公司 | BMS equalizing battery management circuit based on multiple communication modes |
| CN115372825A (en) * | 2022-08-10 | 2022-11-22 | 安徽卓越电气有限公司 | Single voltage and single temperature composite acquisition circuit of explosion-proof battery system and data sequencing control method thereof |
-
2013
- 2013-11-22 CN CN201320749414.5U patent/CN203632291U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107554347A (en) * | 2017-09-30 | 2018-01-09 | 浙江合众新能源汽车有限公司 | Power battery management system monomer intelligence sample device |
| CN114069794A (en) * | 2021-11-24 | 2022-02-18 | 捷程科技(无锡)有限公司 | BMS equalizing battery management circuit based on multiple communication modes |
| CN114069794B (en) * | 2021-11-24 | 2024-01-16 | 捷程科技(无锡)有限公司 | BMS balanced battery management circuit based on multiple communication modes |
| CN115372825A (en) * | 2022-08-10 | 2022-11-22 | 安徽卓越电气有限公司 | Single voltage and single temperature composite acquisition circuit of explosion-proof battery system and data sequencing control method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203119557U (en) | Battery pack active balancing device based on cascading structure | |
| CN209948731U (en) | Bluetooth headset charging system | |
| CN203632291U (en) | 25 serially-connected power lithium battery management acquisition module | |
| CN104931769A (en) | 16-path current detection system | |
| CN203674735U (en) | Controllable current balancing system for electric vehicle battery pack | |
| CN203012413U (en) | Dual-power low-power consumption self-programming data acquisition and transmission module | |
| CN203086217U (en) | Lithium battery management system used for electromobile | |
| CN203275927U (en) | Multifunctional control device applied to electric fire monitoring device | |
| CN205265608U (en) | Photovoltaic power generation system MPPT controlling means | |
| CN201877865U (en) | Automobile power battery balance system | |
| CN202404735U (en) | Wireless temperature and humidity acquisition system | |
| CN203632594U (en) | Graphene solar cell power generation system | |
| CN203967801U (en) | The large current balance charger of lithium battery | |
| CN206533146U (en) | A kind of independent micro-grid energy storage system | |
| CN202276158U (en) | Portable solar energy mobile power supply | |
| CN205123678U (en) | A photovoltaic inverter system | |
| CN204349495U (en) | A kind of mining high capacity lithium ion battery standby power system | |
| CN203745003U (en) | Converter valve regular checking maintenance diagnosis system | |
| CN202486301U (en) | Configuration calibration system for cell electric quantity monitoring chip | |
| CN207649880U (en) | A kind of optical module test system of changeable circuit | |
| CN203100869U (en) | Weighing device with recording function | |
| CN202267913U (en) | Power supply management circuit for tablet computer | |
| CN206023262U (en) | A kind of all-vanadium flow battery intelligent recharge and discharge conversion and state monitoring device | |
| CN203151195U (en) | Intelligent controller for auxiliary power generator for railway locomotive | |
| CN204258387U (en) | Solar charging controller |
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 |
Owner name: WANXIANG A123 SYSTEMS CO., LTD. Free format text: FORMER NAME: ZHEJIANG WANXIANG YINENG POWER BATTERY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 311215 Xiaoshan economic and Technological Development Zone, Zhejiang, No. two road, building No. 118, No. Patentee after: Universal A 1 System Co., Ltd Patentee after: Wanxiang Electric Vehicle Co., Ltd. Patentee after: Wanxiang Group Corporation Address before: 311215 Xiaoshan economic and Technological Development Zone, Zhejiang, No. two road, building No. 118, No. Patentee before: ZHEJIANG WANXIANG YINENG POWER BATTERY CO., LTD. Patentee before: Wanxiang Electric Vehicle Co., Ltd. Patentee before: Wanxiang Group Corporation |
|
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 311215 Xiaoshan economic and Technological Development Zone, Zhejiang District, No. two road, building No. 855, No. Patentee after: Wanxiang 123 Co Ltd Patentee after: Wanxiang Electric Vehicle Co., Ltd. Patentee after: Wanxiang Group Corporation Address before: 311215 Xiaoshan economic and Technological Development Zone, Zhejiang, No. two road, building No. 118, No. Patentee before: Universal A 1 System Co., Ltd Patentee before: Wanxiang Electric Vehicle Co., Ltd. Patentee before: Wanxiang Group Corporation |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140604 Termination date: 20191122 |