CN106099224B - The lead-acid accumulator with intelligent management unit based on Internet of Things design - Google Patents
The lead-acid accumulator with intelligent management unit based on Internet of Things design Download PDFInfo
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- CN106099224B CN106099224B CN201610620031.6A CN201610620031A CN106099224B CN 106099224 B CN106099224 B CN 106099224B CN 201610620031 A CN201610620031 A CN 201610620031A CN 106099224 B CN106099224 B CN 106099224B
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- Prior art keywords
- circuit
- management unit
- lead
- intelligent management
- accumulator
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M10/4257—Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/488—Cells or batteries combined with indicating means for external visualization of the condition, e.g. by change of colour or of light density
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
-
- 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 present invention relates to a kind of lead-acid accumulators, especially a kind of lead-acid accumulator with intelligent management unit based on Internet of Things design, it includes battery body, cell cover, middle cover of battery and battery side cover, further includes constituting the consequent pole column being electrically connected with bus-bar in battery body；Intelligent management unit is installed on consequent pole column；Intelligent management unit constitutes control with the audible-visual annunciator covered set on cell cover or battery side and is electrically connected；It is to existing traditional lead-acid accumulator upgrading and intellectualized reconstruction in technical solution of the present invention.Lead-acid accumulator needs more parameters to instruct the production, circulation and use of battery during permanent use.The technology that this patent proposes changes previous extensive lead-acid accumulator management mode from producing, selling and uying, recycle etc. during links make the Life cycle of lead-acid accumulator bring closed loop management into.It is the administrative skill innovation for being directed to lead-acid accumulator.
Description
Technical field
The present invention relates to a kind of lead-acid accumulator, especially a kind of lead with intelligent management unit based on Internet of Things design
Acid accumulator.
Background technology
Lead-acid accumulator is widely used in communication, traffic, data center etc. industry.It is current most popular electric power storage
One of pond.
However the lead-acid accumulator that market is supplied still stays in traditional design, it is defeated that cell batteries externally only have positive and negative anodes
The pile crown gone out；In face of the increasingly increase currently for battery applications regulatory requirement, the real-time status parameter and history of accumulator
The acquisition of operation data become most important.
Traditional lead-acid accumulator can not be acquired its own historical operating parameter, not indicate its life effectively
The life period include and be not limited to manufacture information, circulation information, specific run state, the record of data such as operation troubles parameter,
It is even more impossible to realize the early warning and alarm that itself there are related parameter.Thus the pipe to links such as recyclings also can not effectively be implemented
Reason.
It is directed to the management of lead-acid battery, the method for generally use is to attach a battery to " electric power storage by external connection at present
Pond management system for monitoring " or " measurement module " carry out data sampling to battery.Due to external measuring apparatus needs and accumulator
Output positive and negative electrode end scene add wiring, increase installation workload；It, can shadow and when wiring construction quality is bad
Ring test the effect even normal use of accumulator.
Increase with Wiring module at the top of accumulator or by connecing currently, portion of techniques and its corresponding product are used
Accumulator prison module is placed into the position of the reserved measurement module of accumulator by line.The technology can not solve accumulator at all
It is the problem of intelligent accummulator administrative unit provides special purpose interface during manufacture, lacks and realize that module is connect with accumulator
Explanation and concrete scheme.
Invention content
Technical problem to be solved by the invention is to provide it is a kind of will built in intelligent management unit and have internet of things functional
, based on Internet of Things design based on Internet of Things design the lead-acid accumulator with intelligent management unit.
In order to solve the above technical problems, the present invention realizes as follows：It designs and a kind of is designed based on Internet of Things
Lead-acid accumulator with intelligent management unit, including battery body, cell cover, middle cover of battery and battery side cover further include
The consequent pole column being electrically connected is constituted with bus-bar in battery body；Intelligent management unit is installed on consequent pole column；Intelligent management unit
Control is constituted with the audible-visual annunciator and display device covered set on cell cover or battery side to be electrically connected.
Further, the intelligent management unit is by the special purpose interface of auxiliary connection pole, secondary power supply circuit, detection electricity
Road, internal resistance exciting circuit, voltage balance circuit, high-frequency impulse activation circuit, microcontroller, the wire transmission with electrical isolation connect
Mouth, wireless transmission interface, acousto-optic output interface, data show output interface composition；Detection circuit, internal resistance exciting circuit, voltage
Equalizing circuit and high-frequency impulse activation circuit constitute detection with consequent pole column by the special purpose interface of the auxiliary connection pole and are electrically connected；
Secondary power supply circuit is taken with consequent pole column composition by the special purpose interface of the auxiliary connection pole and is electrically connected；Microcontroller respectively with detection
Circuit, internal resistance exciting circuit, voltage balance circuit, high-frequency impulse activation circuit, microcontroller, the wire transmission with electrical isolation
Interface, wireless transmission interface, acousto-optic output interface and data show that output interface constitutes data electrical connection；The acousto-optic output connects
Mouth constitutes data control with audible-visual annunciator and is electrically connected；Detection circuit connect with special purpose interface by sampling line and constitutes data and adopts
Sample is electrically connected；Internal resistance exciting circuit is connect with special purpose interface by excitation line and constitutes excitation private access.
Further, identification in real time checks that battery status, the intelligent management unit further include one and intelligence for convenience
In administrative unit microcontroller constitute control electrical connection one-dimension code two-dimensional code generation module, one-dimension code two-dimensional code generation module also with
Light crossing-signal and display device constitute data electrical connection.
Further, the secondary power supply circuit also takes with external power supply composition and is electrically connected.Secondary power supply circuit can
It can also be by other external power supplys as electric power storage using the power supply for using accumulator itself as intelligent accummulator administrative unit
Pond intelligent management unit power supply.
Further, the wireless transmission interface is the WIFI module for connecting internet, 3G module, GPRS module, 4G moulds
One kind in block, infrared module, RFID module.
Further, the internal resistance exciting circuit, voltage balance circuit and high-frequency impulse activation circuit merging are designed as one
A circuit for having electric voltage equalization and internal resistance measurement and high-frequency impulse mobilizing function.
Further, the secondary power supply circuit activates circuit by high-frequency impulse and constitutes accumulator separate excitation height with accumulator
Frequency pulse activated desulfuration connects.
Further, described constituted with external power supply takes the secondary power supply circuit being electrically connected to be constituted with accumulator body
Charging electrical connection.
The positive effect of the present invention：It is to existing traditional lead-acid accumulator upgrading and intelligence in technical solution of the present invention
Energyization is transformed.Lead-acid accumulator changes previous extensive style during the permanent use process phase bringing closed loop management into
Lead-acid accumulator management mode.It is the administrative skill innovation for being directed to lead-acid accumulator；It realizes and includes but not to accumulator
It is limited to the acquisition of the real time datas such as voltage, internal resistance, temperature (containing cell body, positive terminal, cathode column temperature)；Realize the appearance of accumulator
The measuring and calculating of health status (SOH) and capacity status (SOC) is measured, and can realize that the electric voltage equalization for accumulator, high-frequency impulse are gone
The management functions such as sulphur.
Description of the drawings
Understand to make the objectives, technical solutions, and advantages of the present invention clearer, With reference to embodiment and
Attached drawing is described in further details the present invention.Here, the exemplary embodiment and its explanation of the present invention are for explaining this hair
It is bright but not as a limitation of the invention.
Fig. 1 is the longitudinally disposed structural schematic diagram of the intelligent management unit of embodiment of the present invention.
Fig. 2 is the structural schematic diagram that the intelligent management unit of embodiment of the present invention is laterally arranged.
Fig. 3 is the structural schematic diagram of the intelligent management unit of embodiment of the present invention.
In figure, 1, cell cover；2, middle cover of battery；3, battery side cover；4, consequent pole column；5, intelligent management unit；6, acousto-optic
Alarm and display device.
Specific implementation mode
As shown, the lead-acid accumulator with intelligent management unit of the present invention based on Internet of Things design includes battery
Ontology, cell cover 1, middle cover of battery 2 and battery side cover 3 further include constituting the pair being electrically connected with bus-bar in battery body
Pole 4；Intelligent management unit 5 is installed on consequent pole column 4；Intelligent management unit 5 on cell cover 1 or battery side cover 3
Audible-visual annunciator and display device 6 constitute control electrical connection.
Further, the intelligent management unit 5 is by the special purpose interface of auxiliary connection pole 4, secondary power supply circuit, detection electricity
Road, internal resistance exciting circuit, voltage balance circuit, high-frequency impulse activation circuit, microcontroller, the wire transmission with electrical isolation connect
Mouth, wireless transmission interface, acousto-optic output interface, data show output interface composition；Detection circuit, internal resistance exciting circuit, voltage
Equalizing circuit and high-frequency impulse activation circuit constitute detection with consequent pole column by the special purpose interface of the auxiliary connection pole and are electrically connected；
Secondary power supply circuit is taken with consequent pole column composition by the special purpose interface of the auxiliary connection pole and is electrically connected；Microcontroller respectively with detection
Circuit, internal resistance exciting circuit, voltage balance circuit, high-frequency impulse activation circuit, microcontroller, the wire transmission with electrical isolation
Interface, wireless transmission interface, acousto-optic output interface and data show that output interface constitutes data electrical connection；The acousto-optic output connects
Mouth constitutes data control with audible-visual annunciator and is electrically connected；Detection circuit connect with special purpose interface by sampling line and constitutes data and adopts
Sample is electrically connected；Internal resistance exciting circuit is connect with special purpose interface by excitation line and constitutes excitation private access.
Further, identification in real time checks that battery status, the intelligent management unit 5 further include one and intelligence for convenience
Microcontroller constitutes the one-dimension code two-dimensional code generation module of control electrical connection in administrative unit 5, and one-dimension code two-dimensional code generation module is also
Data are constituted with light crossing-signal and display device 6 to be electrically connected.
Further, the secondary power supply circuit also takes with external power supply composition and is electrically connected.Secondary power supply circuit can
It can also be by other external power supplys as electric power storage using the power supply for using accumulator itself as intelligent accummulator administrative unit
Pond intelligent management unit power supply.
Further, the wireless transmission interface is the WIFI module for connecting internet, 3G module, GPRS module, 4G moulds
One kind in block, infrared module, RFID module.
Further, the internal resistance exciting circuit, voltage balance circuit and high-frequency impulse activation circuit merging are designed as one
A circuit for having electric voltage equalization and internal resistance measurement and high-frequency impulse mobilizing function.
Further, the secondary power supply circuit activates circuit by high-frequency impulse and constitutes accumulator separate excitation height with accumulator
Frequency pulse activated desulfuration connects.
Further, described constituted with external power supply takes the secondary power supply circuit being electrically connected to be constituted with accumulator body
Charging electrical connection.
Based on the lead-acid accumulator with intelligent management unit of Internet of Things design, including the battery case of 1. battery bodies, electricity
Pond middle cover, cell cover, side cover (when necessary)；2. inside battery is electrically connected with bus-bar or battery plus-negative plate main pole column composition
Consequent pole column, consequent pole column are used for the installation and connection of intelligent management unit；3. the acousto-optic report covered set on cell cover or battery side
Alarm device and display device constitute control with intelligent management unit and are electrically connected.
Wherein, the effect for the special purpose interface that the intelligent management unit is connect with consequent pole column：1. intelligent management unit is powered
Connection, constitutes the secondary power supply of intelligent management unit；2. constituting detection input circuit by sampling line；3. being made up of excitation line
The circuit that internal resistance excitation, electric voltage equalization, high-frequency impulse activate；Microcontroller in intelligent management unit respectively to its detection circuit,
Internal resistance exciting circuit, voltage balance circuit, high-frequency impulse activation circuit connection implement control, while externally having electrical isolation
Wire transmission interface or wireless transmission interface, acousto-optic output interface, data show output interface and externally fed interface.
Detection circuit acquires the parameters such as the voltage of accumulator, temperature and internal resistance exciting circuit can be coordinated in centre in real time
Manage device or the lower measurement for realizing accumulator internal resistance of microcontroller control.
Internal resistance exciting circuit provides internal resistance measurement all pumping signals when accumulator carries out internal resistance measurement.Cooperation inspection
Slowdown monitoring circuit realizes the measurement of accumulator internal resistance.It, can also be real by introducing external drive signal when using external power supply power supply
Existing internal resistance measurement.
Voltage balance circuit realizes that battery tension is balanced by the CPU controls of internal storage battery.When using external power supply
When power supply, accumulator charging voltage can be adjusted by external power supply to desired value.
Accumulator internal resistance exciting circuit can also merge with equalizing circuit, and complete electric voltage equalization and internal resistance measurement.
High-frequency impulse activates circuit secondary power supply circuit under external electric power thus supplied, can be by separate excitation mode to accumulator
Middle injection high-frequency impulse realizes storage battery activation or desulfuration operation.When using storage battery power supply, it can be realized by self-excitation mode
High-frequency impulse injects.
Accumulator external interface circuit includes wire transmission interface, the wireless transmission interface for having electrical isolation.Above-mentioned two
A interface, which can be used simultaneously, also can be used alone.
Accumulator acousto-optic output interface can indicate that accumulator status includes by way of acousto-optic and output switch parameter
But it is not limited to the normal condition and abnormality of accumulator.
The audible-visual annunciator of intelligent accummulator administrative unit connection and the display device of display device 6 can match display screen
Support display output.Display output includes but not limited to production information, historical data, the real time data etc. of accumulator.Display side
Formula include but not limited to data show, the modes such as text importing and Quick Response Code.Quick Response Code caused by display screen and accumulator shape
State parameter is consistent, is changed according to the variation of the actual parameter of accumulator, for mobile device, handheld terminal or other can sweep
Imaging apparatus quickly reads battery information.
One kind is proposed in present patent application on lead-acid accumulator positive and negative anodes bus-bar to connect independently of the main output of accumulator
Consequent pole column outside connecting terminal, the consequent pole column are directly anchored at the bus-bar of accumulator anode and cathode output.Convenient for intelligent accummulator
Intelligent accummulator management is convenient in the installation and fixation of administrative unit.Intelligent accummulator administrative unit passes through positive and negative anodes bus-bar
In the consequent pole column reserved be directly connected at accumulator anode and cathode bus-bar, it is fixed steady to improve intelligent accummulator administrative unit
Solidity.
Meanwhile present patent application is proposed and is used based on the above-mentioned lead-acid accumulator for being configured with intelligent accummulator administrative unit
Data, the health status of battery such as discharge time, depth of discharge, accumulation charging time, accumulated discharge time in the process
(SOH), the real-time interconnection of the parameters such as capacity status (SOC) of battery monitors and can instruct the recycling of accumulator according to big data
And it recycles.Meanwhile intelligent accummulator administrative unit is by pre-setting or receiving instruction mode, to tieing up for accumulator
Shield, the mode of maintenance includes but not limited to, each cell batteries equalizaing charge in series-connected batteries, for vulcanization accumulator into
Row high-frequency impulse charging desulfuration carries out the modes such as intermittent charging to battery, realizes the safety for improving accumulator and using, extension
The purpose of service lifetime of accumulator.
Accumulator life cycle management involved by this patent is based on the electric power storage based on Internet of Things contained in this patent
That pond Intelligent management module is realized scraps recycling links by the module for producing, selling and uying for accumulator
Parameter is noted down, for big data analysis and statistics to be monitored and supported to accumulator overall process.
In production link, intelligent accummulator management module uses the structure design combined closely with accumulator.It can be in life
During production, the production information of accumulator is written by storage battery production person and is noted down, which includes but not limited to accumulator
Manufacturer, production time, batch, type information etc..Above- mentioned information can be encoded or added by the format that producer specifies
It is close, make the unique encodings corresponding to accumulator.User can by the coding for accumulator the condition of production into
Row inquiry.It can effectively prevent fake and forged battery by the coding or renovate the circulation of accumulator, ensure regular production producer
Interests.
In the process of circulation, intelligent accummulator management module can be by the related sales information of accumulator, logistics information, storage
Information is recorded.It is the process of circulation of accumulator, brings under effective monitoring management.
After consigning to user, intelligent accummulator management module can record accumulator and include but unlimited accumulator in real time
Parameter is used in voltage, electric current, internal resistance, temperature etc., and abnormal phenomenon in accumulator use is recorded.Meanwhile passing through storage
The management function of battery intelligent management module is protected for carrying out the attended operations such as high-frequency impulse activation, electric voltage equalization in accumulator
Demonstrate,prove the stabilization of accumulator operation.Intelligent accummulator management module provides parameter foundation for accumulator operation conditions, in accumulator
When breaking down or deteriorating and alarm, it is convenient for user and producer's analyzing failure cause.Above-mentioned parameter can pass through
Interface of internet of things in intelligent accummulator management module or display indication window, pass through network communication, bar code or two-dimensional code scanning
Etc. means obtain.Battery data is shipped regularly to network cloud platform, for realizing based on cloud by the interface of internet of things of accumulator
Platform for the management of accumulator, big data analysis, accumulator failure prediction etc. functions.
Scrapping for accumulator is the link for needing strictly to control in accumulator life cycle.Lead-acid accumulator belongs to dangerous dirty
Object is contaminated, the product that China strictly controls recycling is belonged to.Lead-acid accumulator with intelligent accummulator management module, can accurate judgement
The deterioration of battery.In removal process, all parameters of battery can be read out and cloud platform can be relied on to accumulator
Removal process controlled.The display device of intelligent accummulator management module, can also be by data scanning to accumulator
Recycling is effectively supervised, and prevents the secondary pollution that accumulator scraps generation from occurring.
Claims (7)
1. a kind of lead-acid accumulator with intelligent management unit based on Internet of Things design, including battery body, cell cover
(1), middle cover of battery (2) and battery side cover (3), it is characterised in that：It further includes being electrically connected with bus-bar composition in battery body
Consequent pole column (4)；Intelligent management unit (5) is installed on consequent pole column (4)；Intelligent management unit (5) be set to cell cover (1)
Or audible-visual annunciator on battery side cover (3) and display device (6) constitute control electrical connection；The intelligent management unit (5) by
Special purpose interface, secondary power supply circuit, detection circuit, internal resistance exciting circuit, voltage balance circuit, the high frequency of auxiliary connection pole (4)
Pulse activated circuit, microcontroller, the wire transmission interface with electrical isolation, wireless transmission interface, acousto-optic output interface, data
Show output interface composition；Detection circuit, internal resistance exciting circuit, voltage balance circuit and high-frequency impulse activation circuit pass through described
The special purpose interface of auxiliary connection pole constitutes detection with consequent pole column and is electrically connected；Secondary power supply circuit is special by the auxiliary connection pole
It is taken and is electrically connected with consequent pole column composition with interface；Microcontroller respectively with detection circuit, internal resistance exciting circuit, voltage balance circuit, height
Frequency pulse activated circuit, microcontroller, the wire transmission interface with electrical isolation, wireless transmission interface, acousto-optic output interface and
Data show that output interface constitutes data electrical connection；The acousto-optic output interface constitutes data with audible-visual annunciator and display device
Control electrical connection；Detection circuit is connect with special purpose interface by sampling line and constitutes data sampling electrical connection；Internal resistance exciting circuit
It is connect with special purpose interface by excitation line and constitutes excitation private access.
2. the lead-acid accumulator with intelligent management unit as described in claim 1 based on Internet of Things design, it is characterised in that：
The intelligent management unit (5) further includes an one-dimension code two being electrically connected with the interior microcontroller composition control of intelligent management unit (5)
Code generation module is tieed up, one-dimension code two-dimensional code generation module also constitutes data with audible-visual annunciator and display device (6) and is electrically connected.
3. the lead-acid accumulator with intelligent management unit as described in claim 1 based on Internet of Things design, it is characterised in that：
The secondary power supply circuit also takes with external power supply composition and is electrically connected.
4. the lead-acid accumulator with intelligent management unit as described in claim 1 based on Internet of Things design, it is characterised in that：
The wireless transmission interface is the WIFI module for connecting internet, 3G module, GPRS module, 4G modules, infrared module, RFID moulds
One kind in the block.
5. the lead-acid accumulator with intelligent management unit as described in claim 1 based on Internet of Things design, it is characterised in that：
The internal resistance exciting circuit, voltage balance circuit and high-frequency impulse activation circuit merging are designed as one and have electric voltage equalization and interior
Resistance measures and the circuit of high-frequency impulse mobilizing function.
6. the lead-acid accumulator with intelligent management unit as claimed in claim 3 based on Internet of Things design, it is characterised in that：
The secondary power supply circuit activates circuit by high-frequency impulse and constitutes accumulator separate excitation high-frequency impulse activation desulfuration company with accumulator
It connects.
7. the lead-acid accumulator with intelligent management unit as claimed in claim 3 based on Internet of Things design, it is characterised in that：
The external power supply, which is constituted, takes the secondary power supply circuit of electrical connection to be electrically connected with accumulator body composition.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610620031.6A CN106099224B (en) | 2016-07-29 | 2016-07-29 | The lead-acid accumulator with intelligent management unit based on Internet of Things design |
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| CN201610620031.6A CN106099224B (en) | 2016-07-29 | 2016-07-29 | The lead-acid accumulator with intelligent management unit based on Internet of Things design |
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| CN106099224B true CN106099224B (en) | 2018-10-23 |
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| CN112164833B (en) * | 2020-09-28 | 2021-09-28 | 珠海市科宏电子科技有限公司 | Storage battery online monitoring management system with data model |
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| CN101777670B (en) * | 2010-02-10 | 2012-09-05 | 超威电源有限公司 | Intelligent lead-acid battery |
| CN202363557U (en) * | 2011-09-18 | 2012-08-01 | 保定钰鑫电气科技有限公司 | An intelligent storage battery body with a warning function |
| CN103943895A (en) * | 2014-04-02 | 2014-07-23 | 超威电源有限公司 | Wireless intelligent lead-acid storage battery pack |
| CN105703027B (en) * | 2015-05-18 | 2018-08-14 | 山东圣阳电源股份有限公司 | A kind of intelligent battery |
| CN205029376U (en) * | 2015-09-23 | 2016-02-10 | 山东金煜电子科技有限公司 | Embedded self preservation protects intelligent lead acid battery |
| CN205944313U (en) * | 2016-07-29 | 2017-02-08 | 北京巨成科技有限公司 | Take lead acid battery of intelligent management unit based on thing allies oneself with net design |
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