CN209217139U - Lithium battery replaces lead-acid battery intelligence BMS framework - Google Patents
Lithium battery replaces lead-acid battery intelligence BMS framework Download PDFInfo
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- CN209217139U CN209217139U CN201821483286.3U CN201821483286U CN209217139U CN 209217139 U CN209217139 U CN 209217139U CN 201821483286 U CN201821483286 U CN 201821483286U CN 209217139 U CN209217139 U CN 209217139U
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 28
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 28
- 239000002253 acid Substances 0.000 title claims abstract description 26
- 230000005611 electricity Effects 0.000 claims abstract description 55
- 238000012545 processing Methods 0.000 claims abstract description 37
- 238000006243 chemical reaction Methods 0.000 claims abstract description 16
- 238000009413 insulation Methods 0.000 claims abstract description 5
- 238000004891 communication Methods 0.000 claims description 15
- 238000000034 method Methods 0.000 abstract description 7
- 238000007726 management method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000007619 statistical method Methods 0.000 description 1
- 238000013396 workstream Methods 0.000 description 1
Classifications
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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
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a kind of lithium battery replacement lead-acid battery intelligence BMS framework, including center processing unit, and acquisition device, starting and the electricity display unit, the electricity conversion unit that are bi-directionally connected respectively with center processing unit；The acquisition unit is acquired and handles to battery assembly module voltage, electric current, temperature, the insulation parameter of battery pack, uploads to center processing unit；The starting and electricity display unit are equipped with auxiliary switch, for controlling the closure and disconnection of the switch unit of battery pack；The electricity conversion unit receives vehicle and shows correct charge value；The switch that the switch unit of the battery pack uses is relay switch.The utility model more adapts to the working condition of electrical energy demands end high load capacity high current, and guarantees low-power consumption, safe and stable operation；A kind of method of electricity display conversion is provided, electricity can correctly be shown after the electrical energy demands end replacement lithium battery to realize original device lead-acid battery.
Description
Technical field
The utility model relates to lithium battery security protection technology fields, and in particular to a kind of electrical energy demands end (such as it is electronic
Fork truck, AGV, etc.) replace lead-acid battery with lithium battery when lithium battery discharge capability promoted and the device that correctly shows of electricity.
Background technique
Lead-acid battery due to Development Technology maturation, performance stablize, it is highly-safe, be widely used as electrical energy demands end (such as electricity
Electrical forklift, AGV, etc.) power source.However, due in lead-acid battery production process or discarded post-processing is improper be easy to cause
The pollution of environment, after the existing lead-acid battery in electrical energy demands end reaches the service life, with energy density is higher, free of contamination lithium battery is replaced
Become mainstream.
And traditional alternative mainly uses lithium battery group to draw positive and negative anodes at the battery pack of close voltage and be used for charge and discharge
Electricity, due to consideration that long-term stand-by power consumption problem, inside carries out overcurrent protection using MOS, without using resistance to electric current higher
Relay reduces the discharge capability of battery pack.In addition, electricity display needs additional external after the battery pack of replacement lithium battery
Instrument shows that the instrument at original electrical energy demands end cannot normally show electricity.These are all to carry out lithium battery replacement lead-acid battery
When urgent need to resolve the problem of.
Utility model content
In view of this, the utility model proposes a kind of lithium batteries to replace lead-acid battery intelligence BMS framework, more adaptation electric energy is needed
The working condition of end high load capacity high current is sought, and guarantees low-power consumption, safe and stable operation；A kind of display conversion of electricity is provided
Method, with realize original device lead-acid battery electrical energy demands end replacement lithium battery after electricity can correctly show.
In order to achieve the above objectives, the technical solution of the utility model is achieved in that
A kind of lithium battery replaces lead-acid battery intelligence BMS framework, including center processing unit, and respectively with center processing
Acquisition device, starting and electricity display unit that unit is bi-directionally connected, electricity conversion unit；The acquisition unit is to battery pack
Battery assembly module voltage, electric current, temperature, insulation parameter are acquired and handle, and upload to center processing unit and do data processing；
The starting and electricity display unit are equipped with auxiliary switch, for controlling the closure and disconnection of the switch unit of battery pack；It is described
Electricity conversion unit is used to lithium battery magnitude being converted to the format that the lead-acid battery communications protocol original with vehicle matches,
D/A output is carried out, CAN message is formed, then communicate with vehicle, to make vehicle receive and show correct charge value；The electricity
The switch that the switch unit of Chi Bao uses is relay switch.
Further, the acquisition device acquires the voltage and temperature of the every string battery of battery pack by AFE(analog front end), passes through
Data communication sends center processing unit to, acquires battery pack total current by current collection circuit, is transmitted by data communication
To center processing unit.
Further, the starting and electricity display unit are supplied to center by switch button device by external trigger
One enabling signal of processing unit is to wake up and start；The processing result of the grade of electricity is sent by center processing unit again
To show electricity.
Further, the electricity conversion unit includes communication unit (C04), low-power consumption power supply unit (C03), at center
Manage unit (C02), acquisition device (C01)；It is responsible for being communicated with BMS battery management system by communication unit (C04), low-power consumption
Power supply unit (C03) is responsible for power supply, and acquisition device (C01) is responsible for acquisition battery pack current and calculates SOC, and result is transferred to center
Processing unit (C02), processing show that the respective value of electric quantity of lithium battery and plumbic acid electricity is supplied to BMS battery management system and vehicle
Display.
Compared with the existing technology, the utility model has the advantage that
(1) common switch mosfet is replaced with relay switch by the utility model, can control greatly using relay
The advantages that electric current, ensure that the power supply that battery pack is more stable, safe, while in order to overcome relay switch to have follow current conducting
The problem of, an auxiliary switch has been added, when the starting of electrical energy demands end, has manually pressed auxiliary switch, single-chip microcontroller detects out
Conducting is closed, to control the open and close of relay switch, ensures that the low-power consumption of battery protection management system in this way
Characteristic；
(2) lithium battery magnitude is converted to the lead original with electri forklift by electricity conversion unit by the utility model
The format that sour battery communications protocol matches, to make electrical energy demands termination by correct charge value.It ensure that electrical energy demands
Correctly electricity is shown after the lithium battery replacement lead-acid battery of end.
Detailed description of the invention
Fig. 1 is the configuration diagram of the utility model embodiment；
Fig. 2 is the acquisition device structural schematic diagram of the utility model embodiment；
Fig. 3 is the starting and electricity display cell structure schematic diagram of the utility model embodiment；
Fig. 4 is the electricity conversion cellular construction schematic diagram of the utility model embodiment.
Specific embodiment
It should be noted that in the absence of conflict, the feature in the embodiments of the present invention and embodiment can
To be combined with each other.
The utility model is described in detail below in conjunction with attached drawing.
The technical problem to be solved by the utility model is to provide a kind of electrical energy demands end (such as electri forklift, AGV,
Deng) on lithium battery replacement lead-acid battery when guard method, more adaptation electrical energy demands end (such as electri forklift, AGV, etc.) is high negative
The working condition of lotus high current, and guarantee low-power consumption, safe and stable operation；A kind of method of electricity display conversion is provided, with reality
Electricity can correctly be shown after electrical energy demands end (such as electri forklift, AGV, etc.) replacement lithium battery of existing original device lead-acid battery
Show.
Due to needing battery pack offer to continue big electricity when electrical energy demands end (such as electri forklift, AGV, etc.) high load capacity work
Stream, and when traditional lithium battery replacement lead-acid battery, it is all to use multiple MOSFET as switch, the utility model opens MOSFET
The advantages that pass replaces with relay switch, can control high current using relay ensure that the confession that battery pack is more stable, safe
Electricity.However traditional li-ion cell protection management system is that relay is opened without the main reason for relay switch with switch mosfet
There is a follow current conducting in pass, and (such as electri forklift, AGV, etc.) is in shutdown status for a long time if electrical energy demands end in this way, after
Electric switch can continue the consumption battery pack energy, lead to the feed of battery pack, or even damage.The utility model added one it is auxiliary
Switching device is helped, when electrical energy demands end (such as electri forklift, AGV, etc.) starting, manually presses lower switch, single-chip microcontroller detects
Switch conduction ensures that the low-power consumption of battery protection management system is special to control the open and close of relay in this way
Property.
After electrical energy demands end (such as electri forklift, AGV, etc.) lithium battery replacement lead-acid battery, due to lithium battery and plumbic acid
The characteristic curve of battery is different, so their electricity statistical method also can be different, leads to electrical energy demands end (such as electric fork
Vehicle, AGV, etc.) it cannot correctly show battery capacity.The utility model is after algorithm calculates SOC, by converting electricity in BMS
Module is measured, charge value is converted into the communications protocol original with electri forklift and is matched, carries out D/A output, forms CAN message,
It is communicated again with vehicle, so that electri forklift be made to receive correct charge value.Ensure that electrical energy demands end (such as electri forklift,
AGV, etc.) lithium battery replacement lead-acid battery after correctly electricity show.
As shown in Figure 1, describing the framework of the utility model intelligence BMS detection:
Intelligent BMSB01 is powered by low-power consumption power supply unit A03, by acquisition device A01 to battery assembly module A06 voltage,
Electric current, temperature after insulation parameter is acquired and handles, upload to center processing unit A02.
When the machine equipment A08 that charges is linked into battery PACKB02, and open starting and electricity display unit A11 intelligence
BMSB01 carries out charging operations, charging current is arranged, intelligent BMSB01 control switch unit A05, which is turned on the switch, to charge.
Charging times in charging process, failure, the data such as alarm and duration are by the center processing inside intelligent BMSB01
Unit A02 is completed after charging complete by starting and electricity display unit A11 display.
After the enabled instruction of battery PACKB02 response control unit for vehicle A09, starting and electricity display unit are opened
A11 intelligence BMSB01 control switch unit A05 is turned on the switch.Vehicle enters operating mode, and electrical energy demands end during which is such as electric
Electrical forklift, AGV, etc. operation durations, standby time, operating time run milimeter number, the data such as battery level information all pass through intelligence
Center processing unit A02 inside energy BMSB01 is sent to electricity conversion unit A10, and being sent to, electrical energy demands end is such as electronic
Fork truck, AGV, etc. control units and display unit A09, show real time electrical quantity and all data.Do data processing and alarm in inside
Logout.
Handle the process of alarm condition: when intelligent BMSB01 detects that overcurrent occurs for battery PACKB02, Insulation monitoring is abnormal
When, control switch unit A05 is turned off the switch.Data processing and report are done inside center processing unit A02 inside intelligent BMSB01
Alert logout.
Wherein, as shown in Fig. 2, acquisition device A01 acquires the voltage and temperature of the every string battery of battery pack by AFE(analog front end) E01
Degree, sends center processing unit A02 to by data communication.Battery pack total current is acquired by current collection circuit E02, is passed through
Data communication sends center processing unit A02 to.Reach collection voltages, electric current, the function of temperature.
As shown in figure 3, starting and electricity display unit A03, are in being supplied to by switch button device by external trigger
Mono- enabling signal of heart processing unit A02, achievees the purpose that wake-up and starting.Again by center processing unit A02 electricity
The processing result of grade is sent to switch button dress display device and achievees the purpose that show electricity.
As shown in figure 4, electricity conversion unit A04 is to be responsible for being led to BMS battery management system by communication unit C04
Letter, low-power consumption power supply unit C03 are responsible for power supply, and acquisition device, which is responsible for acquiring battery pack current, calculates SOC, and result is transferred to
Heart processing unit C02 show that the respective value of electric quantity of lithium battery and plumbic acid electricity is supplied to BMS battery management system and vehicle is shown
Device.Being achieved the purpose that by internal reasonable conversion can be with the original lead-acid system of seamless interfacing.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (4)
1. a kind of lithium battery replaces lead-acid battery intelligence BMS framework, which is characterized in that including center processing unit, and respectively
Acquisition device, starting and electricity display unit, the electricity conversion unit being bi-directionally connected with center processing unit；The acquisition device
Battery assembly module voltage, electric current, temperature, the insulation parameter of battery pack are acquired and are handled, center processing unit is uploaded to；
The starting and electricity display unit are equipped with auxiliary switch, for controlling the closure and disconnection of the switch unit of battery pack；It is described
Electricity conversion unit is used to lithium battery magnitude being converted to the format that the lead-acid battery communications protocol original with vehicle matches,
D/A output is carried out, CAN message is formed, then communicate with vehicle, to make vehicle receive and show correct charge value；The electricity
The switch that the switch unit of Chi Bao uses is relay switch.
2. framework according to claim 1, which is characterized in that the acquisition device is every by AFE(analog front end) acquisition battery pack
The voltage and temperature of string battery, send center processing unit to by data communication, acquire battery pack by current collection circuit
Total current sends center processing unit to by data communication.
3. framework according to claim 1, which is characterized in that the starting and electricity display unit are by switch button device
By external trigger, one enabling signal of center processing unit is supplied to wake up and start；Pass through center processing unit handle again
The processing result of the grade of electricity is sent to show electricity.
4. framework according to claim 1, which is characterized in that the electricity conversion unit includes communication unit (C04), low
Power consumption power supply unit (C03), center processing unit (C02), acquisition device (C01)；It is responsible for and BMS electricity by communication unit (C04)
Pond management system is communicated, and low-power consumption power supply unit (C03) is responsible for power supply, and acquisition device (C01) is responsible for acquisition battery pack electricity
Result is transferred to center processing unit (C02) by stream calculation SOC, and processing obtains the respective value of electric quantity of lithium battery and plumbic acid electricity
It is supplied to BMS battery management system and vehicle display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821483286.3U CN209217139U (en) | 2018-09-11 | 2018-09-11 | Lithium battery replaces lead-acid battery intelligence BMS framework |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821483286.3U CN209217139U (en) | 2018-09-11 | 2018-09-11 | Lithium battery replaces lead-acid battery intelligence BMS framework |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209217139U true CN209217139U (en) | 2019-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821483286.3U Withdrawn - After Issue CN209217139U (en) | 2018-09-11 | 2018-09-11 | Lithium battery replaces lead-acid battery intelligence BMS framework |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109273783A (en) * | 2018-09-11 | 2019-01-25 | 众声物联（天津）科技有限公司 | Lithium battery replaces lead-acid battery intelligence BMS framework and application method |
-
2018
- 2018-09-11 CN CN201821483286.3U patent/CN209217139U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109273783A (en) * | 2018-09-11 | 2019-01-25 | 众声物联（天津）科技有限公司 | Lithium battery replaces lead-acid battery intelligence BMS framework and application method |
| CN109273783B (en) * | 2018-09-11 | 2024-01-02 | 众声物联（天津）科技有限公司 | Intelligent BMS (battery management system) framework for replacing lead-acid battery with lithium battery and using method |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190806 Effective date of abandoning: 20240102 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20190806 Effective date of abandoning: 20240102 |