CN206558634U - A kind of lithium battery management system - Google Patents
A kind of lithium battery management system Download PDFInfo
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- CN206558634U CN206558634U CN201720159014.7U CN201720159014U CN206558634U CN 206558634 U CN206558634 U CN 206558634U CN 201720159014 U CN201720159014 U CN 201720159014U CN 206558634 U CN206558634 U CN 206558634U
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- battery management
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- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 39
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 38
- 238000002955 isolation Methods 0.000 claims abstract description 29
- 238000007599 discharging Methods 0.000 claims abstract description 13
- 239000004065 semiconductor Substances 0.000 claims description 15
- 238000004891 communication Methods 0.000 claims description 7
- 235000007516 Chrysanthemum Nutrition 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 4
- 244000189548 Chrysanthemum x morifolium Species 0.000 claims 1
- 238000005259 measurement Methods 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 4
- 238000010923 batch production Methods 0.000 abstract description 3
- 241000723353 Chrysanthemum Species 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
-
- 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
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
The utility model belongs to battery management system field, more particularly to a kind of lithium battery management system.The utility model includes battery management module, lithium battery pack module, direct current Hall sensor module, management of charging and discharging module, DC DC power modules, battery remaining power computing module, micro controller module, first isolation module, second isolation module, CAN transceiver modules, the current signal collected is given micro controller module and battery remaining power computing module by direct current Hall sensor module respectively, battery remaining power computing module is handled obtained voltage signal and current signal, the battery pack dump energy information calculated is delivered into micro controller module, battery remaining power is checked by external display device, the specific circuit structure of battery remaining power computing module improves the accuracy of measurement battery dump energy, and it is of the present utility model simple in construction, it is with low cost, it is easy to batch production.
Description
Technical field
The utility model belongs to battery management system field, more particularly to a kind of lithium battery management system.
Background technology
Battery management system (BMS) is the tie between battery and user, for battery unit intelligent management and dimension
Shield, main management object is secondary cell, and secondary cell has some defects, and such as storage energy is few, service life is short, security
It is difficult to ensure, the problems such as battery electric quantity estimation is difficult, because different types of battery behavior differs greatly, battery management system
(BMS) play a part of being the utilization rate for improving secondary cell, prevent secondary cell from occurring overcharging and over-discharge, extend
The service life of secondary cell, monitors the state of secondary cell.
But battery management of the prior art it is complicated cause it is with high costs, it is not easy to promote and on a large scale should
With, and the battery remaining power of measurement is inaccurate, is easily caused battery or secondary cell and is too utilized and damaged.
Utility model content
There is provided a kind of lithium battery management system, this practicality in order to overcome the above-mentioned deficiencies of the prior art for the utility model
It is new can improve measurement battery dump energy accuracy, and it is simple in construction, with low cost, be easy to batch production.
Techniques discussed above is solved the problems, such as, the technical scheme that the utility model is taken is：
A kind of lithium battery management system, including battery management module, lithium battery pack module, direct current Hall sensor module,
Management of charging and discharging module, DC-DC power module, battery remaining power computing module, micro controller module, the first isolation module,
Second isolation module, CAN transceiver modules, the signal of the signal input part connection lithium battery pack module of the battery management module are defeated
Go out end, pass through the first isolation module two-way communication link between battery management module and micro controller module；The lithium battery group
The positive terminal of module connect respectively the signal input part of direct current Hall sensor module, the signal input part of DC-DC power module,
The signal input part of battery remaining power computing module, the signal input part of micro controller module；The direct current Hall sensor
The signal output part of module connect respectively the signal input part of battery remaining power computing module, micro controller module signal it is defeated
Enter end；The management of charging and discharging module is used as electric discharge positive pole and charge positive pole, management of charging and discharging module and direct current Hall sensor
Electrically connected between module；The power output end of the DC-DC power module connects direct current Hall sensor module, discharge and recharge respectively
The power input of management module, micro controller module；The signal output part connection of the battery remaining power computing module is micro-
The signal input part of controller module；The signal output part of the micro controller module passes sequentially through the second isolation module, CAN and received
Send out module connection external display device.
It is preferred that, the battery remaining power computing module includes the first chip, the model of first chip
DS2788, pin 1, the pin 2 of first chip connect the negative pole end of the second diode, the negative pole of the first diode respectively
End, the positive terminal of second diode, the positive terminal of the first diode connect one end of 3rd resistor, second resistance respectively
One end, pin 12, pin 13, the pin 14 of first chip connect negative pole end, the 4th diode of the 5th diode respectively
Negative pole end, the negative pole end of the 3rd diode, the positive terminal of the 5th diode, the positive terminal of the 4th diode, the three or two
The positive terminal of pole pipe connects one end, one end of the 5th resistance, one end of the 4th resistance of the 6th resistance, the 6th resistance respectively
The other end, the other end of the 5th resistance, the other end of the 4th resistance, the other end of 3rd resistor, the other end of second resistance
It is all connected with the pin 4 of one end, the negative pole end of the 6th diode and the first chip of first resistor, the positive terminal of the 6th diode
The signal for connecting pin 3, pin 5, pin 6, one end of the 12nd resistance and the micro controller module of the first chip respectively is defeated
Enter end, the other end of the first resistor is connecting the signal input part and lithium battery pack module of micro controller module just respectively
Extremely, the other end of the 12nd resistance connects the drain electrode of one end and the second metal-oxide-semiconductor of the 11st resistance, described respectively
Source electrode, the grid of two metal-oxide-semiconductors connect one end of the 8th resistance, the pin 8 of the first chip, the other end of the 8th resistance respectively
The grid of one end of the 7th resistance of connection and the first metal-oxide-semiconductor respectively, the other end of the 7th resistance and the first metal-oxide-semiconductor
Drain electrode is all connected with the positive terminal of lithium battery pack module, the other end of the 11st resistance connect respectively one end of the 9th resistance with
And first chip pin 10, the other end of the 9th resistance connects the source electrode of the first metal-oxide-semiconductor.
It is preferred that, the battery management module includes using between three battery management chips, three battery management chips
Chrysanthemum chain pattern is connected, and the signal input part of three battery management chips is all connected with the signal output of lithium battery pack module
End, three battery management chips pass through two-way communication link between the first isolation module and micro controller module.
It is preferred that, the model AD7280 of the battery management chip.
Further, the micro controller module includes control chip, the model of the control chip
MC9S12XS128MAL。
Further, first isolation module, the model of the chip of the second isolation module are ADUM1250；It is described
The model ISO1050 of the chip of CAN transceiver modules.
The beneficial effects of the utility model are：
1), the utility model includes battery management module, lithium battery pack module, direct current Hall sensor module, discharge and recharge
Management module, DC-DC power module, battery remaining power computing module, micro controller module, the first isolation module, second every
From module, CAN transceiver modules, direct current Hall sensor module by the current signal collected give respectively micro controller module and
Battery remaining power computing module, battery remaining power computing module is handled obtained voltage signal and current signal,
The battery pack dump energy information calculated is delivered into micro controller module, checks that remaining battery holds by external display device
Amount, the specific circuit structure of battery remaining power computing module improves the accuracy of measurement battery dump energy, and this reality
With it is new it is simple in construction, with low cost, be easy to batch production.
2), the battery management module includes using chrysanthemum between three battery management chips, three battery management chips
Chain pattern is connected, and multi-series lithium battery can be managed simultaneously；The inspection of electric current is considerably increased using direct current Hall sensor module
Survey scope.
3), the model AD7280 of the battery management chip, the micro controller module includes control chip, the control
The model MC9S12XS128MAL of coremaking piece, first isolation module, the model of the chip of the second isolation module are
ADUM1250；The model ISO1050 of the chip of the CAN transceiver modules, the chip of above specific model is used in conjunction with each other,
Realize optimal design of the present utility model.
Brief description of the drawings
Fig. 1 is overall structure block diagram of the present utility model；
Fig. 2 is the circuit theory diagrams of battery remaining power computing module of the present utility model.
Reference implication in figure is as follows：
1-the first the 3-the three battery management chip of the 2-the second battery management chip of battery management chip
4-lithium battery pack module, 5-direct current Hall sensor module 6-management of charging and discharging module
7-DC-DC power module, 8-battery remaining power, 9-micro controller module of computing module
10-the first isolation module the 11-the second isolation module 12-CAN transceiver modules
13-electric discharge positive pole 14-electric discharge negative pole 15-charging positive pole
16-charging, 17-external display device of negative pole
Embodiment
Below against accompanying drawing, to the shape of embodiment of the present utility model such as involved each component, construction, each
Mutual alignment and annexation, the effect of each several part and operation principle between part etc. are described in further detail：
Passed as shown in figure 1, a kind of lithium battery management system includes battery management module, lithium battery pack module 4, direct current Hall
Sensor module 5, management of charging and discharging module 6, DC-DC power module 7, battery remaining power computing module 8, micro controller module 9,
First isolation module 10, the second isolation module 11, CAN transceiver modules 12, the battery management module are used to gather the lithium electricity
The voltage signal and temperature signal of pond group module 4, the signal input part connection lithium battery pack module 4 of the battery management module
Signal output part, passes through the two-way communication link of the first isolation module 10 between battery management module and micro controller module 9；It is described
Lithium battery pack module 4 its positive terminal connects the signal input part of direct current Hall sensor module 5, DC-DC power module 7 respectively
Signal input part, the signal input part of battery remaining power computing module 8, the signal input part of micro controller module 9；It is described straight
Stream Hall sensor module 5 is used for the current signal for gathering lithium battery pack module 4, and the signal of direct current Hall sensor module 5 is defeated
Go out the end signal input part of connection battery remaining power computing module 8, the signal input part of micro controller module 9 respectively；It is described
Management of charging and discharging module 6 as electric discharge positive pole and charging positive pole, management of charging and discharging module 6 and direct current Hall sensor module 5 it
Between electrically connect；The DC-DC power module 7 is respectively direct current Hall sensor module 5, management of charging and discharging module 6, microcontroller
Module 9 is powered；The signal output part of the battery remaining power computing module 8 connects the signal input part of micro controller module 9；
The signal output part of the micro controller module 9 passes sequentially through the second isolation module 11, CAN transceiver modules 12 by communication interface
External display device 17 is connected, external display device 17 is used for the dump energy information for showing battery.
Battery remaining power computing module 8 may be also connected to computer host computer, and computer host computer can be examined with detecting system
Measurement information simultaneously preserves information, query history information, and computer can long-range mail message, the guarantor that data are carried out with long term time
Deposit, complexity is analyzed, historical information can also be preserved, facilitate query history information, call correction data.
First isolation module 10 is used for the normal table work for protecting microcontroller 9.
The battery remaining power computing module 8 includes the first chip, and the model DS2788 of first chip is described
Pin 1, the pin 2 of first chip connect the second diode D2 negative pole end, the first diode D1 negative pole end, described respectively
Two diode D2 positive terminal, the first diode D1 positive terminal connect 3rd resistor R3 one end, second resistance R2 respectively
One end, pin 12, pin 13, the pin 14 of first chip connect the 5th diode D5 negative pole end, the four or two pole respectively
The negative pole end of pipe D4 negative pole end, the 3rd diode D3, positive terminal, the 4th diode D4 positive pole of the 5th diode D5
End, the 3rd diode D3 positive terminal connect the 6th resistance R6 one end, the 5th resistance R5 one end, the 4th resistance R4 respectively
One end, the other end, the 5th resistance R5 other end, the 4th resistance R4 other end, the 3rd resistor R3 of the 6th resistance R6
The other end, the second resistance R2 other end be all connected with first resistor R1 one end, the 6th diode D6 negative pole end and
The pin 4 of one chip, the 6th diode D6 positive terminal connects the pin 3 of the first chip, pin 5, pin the 6, the 12nd respectively
Resistance R12 one end and the signal input part of micro controller module 9, the other end of the first resistor R1 connect micro-control respectively
The signal input part of device module 9 processed and the positive terminal of lithium battery pack module 4, the other end difference of the 12nd resistance R12
The 11st resistance R11 one end and the drain electrode of the second metal-oxide-semiconductor are connected, source electrode, the grid of second metal-oxide-semiconductor connect respectively
Eight resistance R8 one end, the pin 8 of the first chip, the other end of the 8th resistance R8 connect the 7th resistance R7 one end respectively
And first metal-oxide-semiconductor grid, the drain electrode of the other end and the first metal-oxide-semiconductor of the 7th resistance R7 is all connected with lithium battery group mould
The positive terminal of block 4, the other end of the 11st resistance R11 connects the 9th resistance R9 one end and drawing for the first chip respectively
Pin 10, the other end of the 9th resistance R9 connects the source electrode of the first metal-oxide-semiconductor.
The battery management module includes three battery management chips, respectively the first battery management chip 1, the second battery
It is connected between managing chip 2, the 3rd battery management chip 3, three battery management chips using chrysanthemum chain pattern, three electricity
The signal input part of pond managing chip is all connected with the signal output part of lithium battery pack module 4, and three battery management chips are equal
Pass through two-way communication link between the first isolation module 10 and micro controller module 9.
The model AD7280 of the battery management chip, the micro controller module includes control chip, the control
The model MC9S12XS128MAL of chip, first isolation module, the model of the chip of the second isolation module are
ADUM1250；The model ISO1050 of the chip of the CAN transceiver modules.
The utility model when in use, can coordinate to be used with software of the prior art.With reference to existing
Operation principle of the present utility model is described software in technology, it must be noted that be：Match with the utility model
The software of conjunction is not innovative part of the present utility model, nor part of the present utility model.
First battery management chip 1, the second battery management chip 2, the 3rd battery management chip 3 are respectively to lithium battery group mould
Every a string of battery of block 4 carry out voltage signal and and temperature signal collection, the data collected are then delivered into microcontroller
Module 9, holds while the current signal collected is respectively sent to micro controller module 9, remaining battery by direct current Hall sensor 5
Computing module 8 is measured, obtained information of voltage and current information are handled, finally will by battery remaining power computing module 8
The battery pack dump energy information calculated delivers to micro controller module 9, and micro controller module 9 again leads to the data collected
Cross CAN transceiver modules 12 to send, battery remaining power is checked eventually through external display device.
The utility model can manage multi-series lithium battery simultaneously, and the utility model can be applied in automobile and bus
On, practical, reliability is high.
Above content is to combine the further description that specific preferred embodiment is made to the utility model, it is impossible to recognized
Fixed embodiment of the present utility model is confined to these explanations.For the common skill of the utility model art
For art personnel, the other embodiment drawn in the case where not departing from the technical solution of the utility model should be included in this practicality
In new protection domain.
Claims (6)
1. a kind of lithium battery management system, it is characterised in that：Including battery management module, lithium battery pack module (4), direct current Hall
Sensor assembly (5), management of charging and discharging module (6), DC-DC power module (7), battery remaining power computing module (8), micro-control
Device module (9) processed, the first isolation module (10), the second isolation module (11), CAN transceiver modules (12), the battery management mould
The signal output part of the signal input part connection lithium battery pack module (4) of block, battery management module and micro controller module (9) it
Between pass through the first isolation module (10) two-way communication link；The positive terminal of the lithium battery pack module (4) connects direct current suddenly respectively
Signal input part, the signal input part of DC-DC power module (7), the battery remaining power computing module of your sensor assembly (5)
(8) signal input part, the signal input part of micro controller module (9)；The signal of the direct current Hall sensor module (5) is defeated
Go out signal input part, the signal input part of micro controller module (9) that end connects battery remaining power computing module (8) respectively；
The management of charging and discharging module (6) is used as electric discharge positive pole and charge positive pole, management of charging and discharging module (6) and direct current Hall sensor
Electrically connected between module (5)；The power output end of the DC-DC power module (7) connects direct current Hall sensor module respectively
(5), management of charging and discharging module (6), the power input of micro controller module (9)；The battery remaining power computing module (8)
Signal output part connection micro controller module (9) signal input part；The signal output part of the micro controller module (9) according to
It is secondary that external display device (17) is connected by the second isolation module (11), CAN transceiver modules (12).
2. a kind of lithium battery management system as claimed in claim 1, it is characterised in that：The battery remaining power computing module
(8) including the first chip, the model DS2788 of first chip, pin 1, the pin 2 of first chip are connected respectively
Negative pole end, the negative pole end of the first diode (D1) of second diode (D2), the positive terminal of second diode (D2), first
The positive terminal of diode (D1) connects 3rd resistor (R3) one end, one end of second resistance (R2), first chip respectively
Pin 12, pin 13, pin 14 connect respectively the negative pole end of the 5th diode (D5), the negative pole end of the 4th diode (D4),
The negative pole end of 3rd diode (D3), the positive terminal of the 5th diode (D5), the positive terminal of the 4th diode (D4), the 3rd
The positive terminal of diode (D3) connects one end, one end of the 5th resistance (R5), the 4th resistance (R4) of the 6th resistance (R6) respectively
One end, the other end of the 6th resistance (R6), the other end of the 5th resistance (R5), the other end of the 4th resistance (R4),
The other end, the other end of second resistance (R2) of three resistance (R3) are all connected with first resistor (R1) one end, the 6th diode
(D6) negative pole end and the pin 4 of the first chip, the positive terminal of the 6th diode (D6) connect the pin of the first chip respectively
3rd, the signal input part of pin 5, pin 6, one end of the 12nd resistance (R12) and micro controller module (9), first electricity
The other end of resistance (R1) connects the signal input part of micro controller module (9) and the positive terminal of lithium battery pack module (4) respectively,
The other end of 12nd resistance (R12) connects one end of the 11st resistance (R11) and the drain electrode of the second metal-oxide-semiconductor respectively,
Source electrode, the grid of second metal-oxide-semiconductor connect one end of the 8th resistance (R8), the pin 8 of the first chip, the 8th electricity respectively
The other end of resistance (R8) connects one end of the 7th resistance (R7) and the grid of the first metal-oxide-semiconductor, the 7th resistance (R7) respectively
The other end and the drain electrode of the first metal-oxide-semiconductor be all connected with the positive terminals of lithium battery pack module (4), the 11st resistance (R11)
The other end connect one end of the 9th resistance (R9) and the pin 10 of the first chip respectively, the 9th resistance (R9) it is another
The source electrode of the first metal-oxide-semiconductor of end connection.
3. a kind of lithium battery management system as claimed in claim 2, it is characterised in that：The battery management module includes three
It is connected between battery management chip, three battery management chips using chrysanthemum chain pattern, the letter of three battery management chips
Number input is all connected with the signal output part of lithium battery pack module (4), and three battery management chips pass through the first isolation
Two-way communication link between module (10) and micro controller module (9).
4. a kind of lithium battery management system as claimed in claim 3, it is characterised in that：The model of the battery management chip
AD7280。
5. a kind of lithium battery management system as claimed in claim 3, it is characterised in that：The micro controller module (9) includes
Control chip, the model MC9S12XS128MAL of the control chip.
6. a kind of lithium battery management system as claimed in claim 3, it is characterised in that：First isolation module (10),
The model of the chip of two isolation modules (11) is ADUM1250；The model of the chip of the CAN transceiver modules (12)
ISO1050。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720159014.7U CN206558634U (en) | 2017-02-22 | 2017-02-22 | A kind of lithium battery management system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720159014.7U CN206558634U (en) | 2017-02-22 | 2017-02-22 | A kind of lithium battery management system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206558634U true CN206558634U (en) | 2017-10-13 |
Family
ID=60360546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720159014.7U Expired - Fee Related CN206558634U (en) | 2017-02-22 | 2017-02-22 | A kind of lithium battery management system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206558634U (en) |
-
2017
- 2017-02-22 CN CN201720159014.7U patent/CN206558634U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| 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: 20171013 Termination date: 20180222 |