CN206049377U - A kind of cell safety system for managing state - Google Patents
A kind of cell safety system for managing state Download PDFInfo
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- CN206049377U CN206049377U CN201621117534.3U CN201621117534U CN206049377U CN 206049377 U CN206049377 U CN 206049377U CN 201621117534 U CN201621117534 U CN 201621117534U CN 206049377 U CN206049377 U CN 206049377U
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
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Abstract
The utility model discloses a kind of cell safety system for managing state.The system includes battery system degree of safety display device, signal pickup assembly, signal processing apparatus, communication interface arrangement and ancillary equipment, and battery system degree of safety display device is used for Security analysis result, the degree of safety for showing battery module；Signal pickup assembly is used for the functional parameter for gathering battery module；Signal processing apparatus obtain the Security analysis result and degree of safety of the battery for performing mathematical calculations to the functional parameter of the battery or logical operationss；Communication interface arrangement is used to connect ancillary equipment, and the ancillary equipment includes finger-impu system, battery system degree of safety display device, control device.The cell safety system for managing state that this utility model is provided can make the cell safety state that operator is immediately seen on display and control unit, and, the safe condition is the degree of safety parameter of a quantization, can be prevented effectively from the generation of cell safety accident.
Description
Technical field
This utility model is related to field of batteries, more particularly to a kind of cell safety system for managing state.
Background technology
At present, application of the battery in each field is more and more extensive, almost include we life, production, the institute of scientific research
There is field.Especially in the recent period, domestic and international new-energy automobile quickly grows, and the demand of battery is increasing, the performance to battery
Require also more and more higher.The particularly safety of battery, is the most important performance of battery system.Just because of cell safety shape
The disappearance of state management, causes battery catches fire and explosion accident to take place frequently.Only domestic electric automobile field in this year, has occurred that
More than the ten combustion explosion accidents for playing lithium ion battery of electric automobile, have had a strong impact on the development of electric automobile, have caused electricity
The extensive concern in electrical automobile field.
Under the operating mode of electric automobile actual motion, the working environment of battery is extremely complex, the unexpected increase of electric current, voltage
Suddenly change, the temperature that the failure of heat abstractor causes raised suddenly, can all cause the security incident of battery.
For the other field of battery applications, safety is similarly important.Such as accumulation power supply, startup power supply, stand-by power supply
Field.For land, navigation, Aeronautics and Astronautics field, train, automobile, above water craft and the latent device that navigates under water, aircraft and other fly
, all there is battery and combustion explosion peace occur in the occasion of row device, energy-accumulating power station, power system, communication station and all application batteries
The hidden danger of full accident.
The combustion explosion security incident of battery is caused by many reasons, and with certain probability sexual factor, and
Existing technology should not carry out more in-depth study on the safety hazards to battery, and the safety that battery is used is hidden
Trouble cannot be solved always well.
Utility model content
The purpose of this utility model is to provide a kind of cell safety system for managing state and method, can be to the safety of battery
State carries out the description of quantification and shows, allows driver or other operator to grasp cell safety situation in time, quickly adopts
Adequate measure is taken, effectively prevents security incident from occurring, ensure the safe operation of electrokinetic cell.
For achieving the above object, this utility model provides following scheme：
A kind of cell safety system for managing state, the system include：
Battery system degree of safety display device, the battery system degree of safety display device are installed on the operation of operator
On panel, the battery system degree of safety display device is used for Security analysis result, the degree of safety for showing the battery module,
Operator can be real-time, fast, intuitively, easily sees the degree of safety of battery system；
Signal pickup assembly, the signal pickup assembly are used for the functional parameter for gathering battery module, the feature
Parameter includes voltage, electric current, cell internal pressure, battery temperature, state-of-charge, ambient temperature, ambient pressure and electric automobile
Data, the electric automobile data include environmental vibration, motor speed, speed of operation and automobile position；
Signal processing apparatus, the signal processing apparatus carry out mathematics fortune for the functional parameter to the battery module
Calculate or logical operationss, obtain the Security analysis result and degree of safety of the battery module；
Communication interface arrangement, the communication interface arrangement are used to connect ancillary equipment, and the ancillary equipment includes that keyboard is defeated
Enter device, control device, the finger-impu system is for according to different security requirements, manually presetting safety threshold
Required parameter when value, alarm parameters and signal processing；The control device is used to send alarm command and control instruction；
The communication interface arrangement is connected with the signal processing apparatus, at the signal pickup assembly and the signal
Reason device is connected, and the battery system degree of safety display device passes through the communication interface arrangement and the signal processing apparatus
It is connected.
Optionally, the battery module be lead-acid battery, ickel-cadmium cell, Ni-MH battery, lithium ion battery, fuel cell,
Solaode, smee cell or lithium-sulfur cell.
Optionally, the signal processing device is set to programmable, intelligent computing device, the programmable, intelligent computing device bag
Include DSP, digital computer, Industrial Control Computer, PC application and microcontroller embedded system
System.
Optionally, the communication modes of the communication interface arrangement include that Ethernet, CAN, 1553B buses, RS232 are total
Line, 485 buses, bluetooth or wifi.
Optionally, the battery system degree of safety display device can show using digital instrument or simulate that instrument shows
Show.
Optionally, the battery system degree of safety display device can be shown using LCD display, UFB display, STN
Device, OLED display, TFT display, light-emitting diode display or CRT monitor, or electric vehicle instrument disk, mobile phone, MP4,
MP5、ipad。
According to the specific embodiment that this utility model is provided, the utility model discloses following technique effect：This practicality is new
The safe condition of battery is quantified by type using this parameter value of degree of safety, and the value of degree of safety is a series of ginsengs with specific reference to battery
Count, be calculated using series of computation method, the safe coefficient of battery can be characterized, and, what this utility model was provided is
The degree of safety can also show by system and method, so that work operator refer to, it is to avoid the generation of cell safety accident.
Description of the drawings
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment
Needed for accompanying drawing to be used be briefly described, it should be apparent that, drawings in the following description are only of the present utility model
Some embodiments, for those of ordinary skill in the art, without having to pay creative labor, can be with basis
These accompanying drawings obtain other accompanying drawings.
Structural representations of the Fig. 1 for this utility model embodiment cell safety system for managing state；
Schematic diagrams of the Fig. 2 for a kind of display panels of this utility model embodiment battery management system.
Specific embodiment
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only this utility model a part of embodiment, rather than whole
Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment for being obtained, belongs to the scope of this utility model protection.
The purpose of this utility model is to provide a kind of electricity that quantitative description and display can be carried out to cell safety state
Pond safe condition management system.
Scientific circles also do not define the scientific terminology about quantitative description battery security degree at present, therefore for battery
The evaluation of safe coefficient is very coarse, and international standard, national standard all only specify that " battery occurs combustion explosion, then be judged as electricity
Pond is dangerous ", it is impossible to the battery described in work is also how far apart from combustion explosion.Therefore, the field of current battery application is outstanding
Which is electric automobile field, be badly in need of it is a kind of it is reasonable description cell safety state scientific terminology, for example " safe condition degree " or
" degree of safety ".Be badly in need of it is a kind of can according to the parameter measurement relevant with safety, the feasible method of analytical calculation " degree of safety ",
It is badly in need of a kind of device that can show present battery safe condition degree in time, allows driver or other operator to grasp electricity in time
Pond security situation, quickly takes appropriate measures, and effectively prevents security incident from occurring, and ensures the safe operation of electrokinetic cell.
Safety analysiss and control field of the current battery industry to battery, the clear and definite mark of also no cell safety state
Certainly justice, has had a strong impact on the safety applications of battery.This utility model proposes " cell safety degree " in field of batteries innovation
Concept, furthermore present analysis on Security Degree of Retaining computational methods, and realizes in actual battery management system.This utility model will
The technical problem of solution be propose it is a kind of can accurate description cell safety state term definition, propose analysis, calculate, measurement with
Display packing, by cell voltage, electric current, the isoparametric data acquisition of temperature, drawing the degree of safety of battery.Further apply
Battery management system in work, can be in the battery operated middle safe condition for showing battery system.
It is understandable to enable above-mentioned purpose of the present utility model, feature and advantage to become apparent from, below in conjunction with the accompanying drawings and tool
Body embodiment is described in further detail to this utility model.
Structural representations of the Fig. 1 for this utility model embodiment cell safety system for managing state, as shown in figure 1, battery
Safe condition management system includes battery system degree of safety display device, signal pickup assembly, signal processing apparatus, communication interface
Device, finger-impu system, display and control unit and other ancillary equipment.
Battery system degree of safety display device, the battery system degree of safety display device are installed on the operation of operator
On panel, the battery system degree of safety display device is used for Security analysis result, the degree of safety for showing the battery module,
Operator can be real-time, fast, intuitively, easily sees the degree of safety of battery system；
Signal pickup assembly is used to gathering the functional parameter of battery module, the functional parameter include voltage, electric current,
Cell internal pressure, battery temperature, state-of-charge, ambient temperature, ambient pressure and electric automobile data, the electric automobile number
According to including environmental vibration, motor speed, speed of operation and automobile position；
Signal processing apparatus are obtained for performing mathematical calculations to the functional parameter of the battery module or logical operationss
The Security analysis result and degree of safety of the battery module；
Communication interface arrangement is used to connect ancillary equipment, and the ancillary equipment includes finger-impu system, control device, key
Disk input equipment is for according to different security requirements, manually presetting secure threshold, alarm parameters and signal processing
The parameter of Shi Suoxu；Control device is used to send alarm command and control instruction；
Communication interface arrangement is connected with the signal processing apparatus, communication interface arrangement also with finger-impu system, aobvious
Show, signal pickup assembly is connected with the signal processing apparatus.
Signal processing apparatus can be DSP, digital computer, Industrial Control Computer, programmable control
Device PLC processed and Single Chip MC in Embedded System or other programmable, intelligent computing devices.
The communication modes of communication interface arrangement can using Ethernet, CAN, 1553B buses, RS232 buses, 485
The communication modes such as bus, it would however also be possible to employ the communication such as bluetooth or wifi.
Battery system degree of safety display device can be that digital instrument shows, or simulate that instrument shows.Can adopt
It is with LCD display, UFB display, STN display, OLED display, TFT display, light-emitting diode display, CRT monitor, electronic
Automobile instrument panel, mobile phone, MP4, MP5, ipad or other can with the display and control unit of display number, Fig. 2 be this practicality newly
The schematic diagram of a kind of display panels of type embodiment battery management system, as shown in Fig. 2 battery is shown on display floater
Degree of safety, the information such as voltage, electric current, temperature.
Battery module can be lead-acid battery, ickel-cadmium cell, Ni-MH battery, lithium ion battery, fuel cell, solar-electricity
Any one in the batteries such as pond, smee cell, lithium-sulfur cell.Could be for electric automobile, electric bicycle, electronic work
Tool, land and navigation, aviation, space flight system, and it is used for accumulation power supply, and startup power supply, the battery system of stand-by power supply,
And super capacitor system.In this example by taking electric bus as an example；Using LiFePO4 200Ah/3.2V cells, adopt
150 series connection, total voltage 480V.
Used as a kind of electrochemical system, when battery operated, inside battery can all produce different electrochemistry to battery module
Reaction, so as to export different output signals.The output signal representative of the different characteristic different qualities of battery, thus which can be with
Reflect the multifrequency nature parameter of inside battery to a great extent.Signal pickup assembly is used for the output letter for obtaining battery module
Number.Specifically, the system is designed with the high-speed AD converter AD9220 of ADI companies and realizes the collection of waveshape signal,
By sampling, AD9220 highests sampling rate realizes that waveform is deposited inside FPGA up to 10MHz using external crystal oscillator 8MHz
Storage.AD9220 has two kinds of input modes of direct-current coupling and AC coupled.The voltage signal of battery module, current signal can be gathered
And temperature signal, and it is converted into digital signal output.Certainly it is easily understood that in this utility model other embodiment,
Other have the device of Signals collecting function also possible.
Specifically, in the present embodiment, signal processing apparatus adopt digital signal processor.Digital signal processor is by big
Scale or super large-scale integration lamination composition, the processor for completing signal processing tasks.In order to realize quick calculating
Function, digital signal processor employ TMS320F2812DSP application system plates, TMS320F2812DSP application system strips
There are digital to analog converter and analog-digital converter, therefore be a kind of signal processing apparatus preferably.Certainly, this utility model other
In embodiment, other devices with signal processing function also can be to be applied in this utility model, for example：Industry
Control machine, programmable controller, and other serial Single Chip MC in Embedded System.
Signal processing apparatus are in order to realize and battery system degree of safety display device, control device and finger-impu system
Communication, the battery management system with cell safety degree display function further comprises communication interface arrangement, and this example adopts standard
CAN interface module.
Panel type touch-key of the keyboard using 12 keys, shows using 7 cun of colour liquid crystal display devices.Certainly, in this reality
With in new other embodiment, input/output unit can also be that other have the element of input/output function.
Schematic illustration is considered to the analysis meter of the present embodiment degree of safety below, for convenience, by the safe shape of battery
State is represented with battery degree of safety S.
Definition is made to degree of safety S of battery first：According to scientific common sense, the critical point that battery occurs combustion explosion is defined
For degree of safety 0%；According to battery operated principle, define battery current be zero, charging state 20%, in 25 DEG C, one of standard temperature
Standard atmosphere is depressed, and is defined as degree of safety 100%.
In concrete application, cell voltage, electric current, the limit value parameter of temperature that enterprise's battery specifications book is given are can specify that
Or degree of safety is corresponded to equal to 0% by testing the battery limit parameter for obtaining；Equivalent to cell safety border, can not exceed.
Specify at 25 DEG C of standard temperature, under a standard atmosphere condition, when state-of-charge is 20%, safety when charging or discharging current is zero
Degree is equal to 100%, now most safe.
It is more than 0% in degree of safety, in the range of 100%, the different measurement voltage of correspondence, electric current, temperature can be using public affairs
Formula method, look-up table calculate different degree of safety numerical value.The voltage of equation, electric current, hygrometric formula can adopt formula：Voltage S
(U)=Ku*Ux+Bu；Wherein：Ux is voltage measuring value, and Ku, Bu are undetermined coefficient, electric current S (I)=Ki*Ix+Bi；Wherein：Ix
For current measurement value, Ki, Bi are undetermined coefficient, temperature S (T)=Kt*Tx+Bt；Wherein：Tx is measured temperature, and Kt, Bt are to treat
Determine coefficient.Look-up table refers to table 1, table 2, table 3.
Certainly also dependent on different battery use conditions and different security requirements, the different safe number of degrees are defined
Value.Three parameter cell safety degree can be represented by the formula：
S=S (U) ∪ S (I) ∪ S (T)
Wherein：S is referred to as cell safety degree, and S (U) is referred to as cell voltage safe condition, and S (I) is referred to as the safe shape of battery current
State, S (T) are referred to as battery temperature safe condition, are the relation of logical "or" between S (U), S (I) and S (T), are represented with " ∪ ", if
Occur simultaneously, S takes degree of safety minima.
It is more than by taking voltage, electric current, three parameters of temperature as an example, for more parameters, by that analogy.
Voltage that the present embodiment is collected, electric current, temperature are respectively Ux=3.7V, Ix=9A, Tx=57.5 DEG C, then table look-up
1, table 2,3 corresponding S (U)=80% of table, S (I)=30%, S (T)=10%.
Thus degree of safety S=S (U) ∪ S (I) the ∪ S (T)=10% of battery are drawn, already close to dangerous edge, it should
Take safety measures in time, combustion explosion accident can otherwise occur.
The present embodiment provides the analysis calculation method that degree of safety is carried out using voltage, three parameters of electric current and temperature, for
More parameters, by that analogy.
As another embodiment of the present utility model, using nickel cobalt aluminum ternary lithium ion 100Ah/3.6V cells, 50
Only in parallel is one group, using 160 groups of series connection, total voltage 576V.Gross energy is 2.88MWh.
Signal pickup assembly adopts RS485-1608 data collecting systems, it is possible to achieve the voltage of multichannel, electric current, temperature,
Humidity, pressure, the parameter measurement of vibrations.The data collecting system high precision, working stability can gather the voltage of battery module
Signal, current signal and temperature signal, and be converted into digital signal and be connected with signal processing apparatus by 485 buses.
Signal processing apparatus adopt 15 cun of technical grade touch-screen tablet computers of TPC-150T-ATOM models, 15 cun of very color liquid crystal
Display screen, resolution 1024x768, built-in Intel atoms 1.6GHz low-power consumption fan-free processors are equipped with abundant industry control
Common interfaces processed, hard disk are met industry spot and are powered using unique Aseismic Design, 6～30V DC supply inputs, and power supply is provided
Burst current insurance design prevents from causing component wear because electric current is excessive, large area aluminum fin heat dissipation design, it is ensured that in severe work
Industry scene non-stop run.
Signal processing apparatus are in order to realize and battery system degree of safety display device, control device and finger-impu system
Communication, the battery management system with cell safety degree display function further comprises communication interface arrangement, and this example adopts standard
CAN interface module.
Battery management system with cell safety degree display function also includes that liquid crystal display is defeated as being input into keyboard
Go out device, in order to being manually entered security control parameter and showing degree of safety result, panel of the keyboard using 12 key of KMX-12 types
Formula touch-key, shows using 7 cun of colour liquid crystal display devices of ZM-07 types.Certainly, in this utility model other embodiment
In, input/output unit can also be that other have the element of input/output function.
Schematic illustration is considered to the analysis meter of the present embodiment degree of safety below, if measurement voltage, electric current, temperature are respectively Ux
=3.7V, Ix=5A, Tx=38 DEG C, in addition to the method for obtaining degree of safety by the way of tabling look-up in a upper embodiment, this enforcement
Example is calculated degree of safety using equation, and formula is specific as follows：
Voltage S (U)=Ku*Ux+Bu, electric current S (I)=Ki*Ix+Bi；Temperature S (T)=Kt*Tx+Bt；
For a specific battery pack structure, undetermined coefficient determines Ku=-167, Bu=697 by testing, Ki=-10,
Bi=100, Kt=-2.5, Bt=162.5.
Voltage S (U)=Ku*Ux+Bu=79.1 can be obtained according to formula；Electric current S (I)=Ki*Ix+Bi=50；Temperature S
(T)=Kt*Tx+Bt=67.5.
S=S (U) ∪ S (I) ∪ S (T)=50% are defined according to degree of safety, battery system can be with safe operation.
The cell safety system for managing state that this utility model is provided can make the operation of driver or battery system
Member is immediately seen the cell safety state in battery system degree of safety display device, can be prevented effectively from sending out for cell safety accident
Send, and, the safe condition is the degree of safety parameter of a quantization, is shown using numeral or simulation instrument, fast, intuitively, letter
It is single, it is convenient, it is practical.
| S (U) % | 100 | 90 | 80 | 70 | 60 | 50 | 40 | 30 | 20 | 10 | 0 |
| U(V) | 3.6 | 3.65 | 3.7 | 3.75 | 3.8 | 3.85 | 3.9 | 3.95 | 4.0 | 4.1 | 4.2 |
Table 1
| S (I) % | 100 | 90 | 80 | 70 | 60 | 50 | 40 | 30 | 20 | 10 | 0 |
| I(A) | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
Table 2
Table 3
In this specification, each embodiment is described by the way of progressive, and what each embodiment was stressed is and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.For system disclosed in embodiment
For, as which corresponds to the method disclosed in Example, so description is fairly simple, related part is said referring to method part
It is bright.
Specific case used herein is set forth to principle of the present utility model and embodiment, above example
Explanation be only intended to help and understand method of the present utility model and its core concept；Simultaneously for the general technology of this area
Personnel, according to thought of the present utility model, will change in specific embodiments and applications.In sum,
This specification content is should not be construed as to restriction of the present utility model.
Claims (6)
1. a kind of cell safety system for managing state, it is characterised in that the system includes：
Battery system degree of safety display device, the battery system degree of safety display device are installed on the guidance panel of operator
On, the battery system degree of safety display device is used for Security analysis result, the degree of safety for showing the battery module, operation
Personnel can be real-time, fast, intuitively, easily sees the degree of safety of battery system；
Signal pickup assembly, the signal pickup assembly are used for the functional parameter for gathering battery module, the functional parameter
Including voltage, electric current, cell internal pressure, battery temperature, state-of-charge, ambient temperature, ambient pressure and electric automobile data,
The electric automobile data include environmental vibration, motor speed, speed of operation and automobile position；
Signal processing apparatus, the signal processing apparatus for performing mathematical calculations to the functional parameter of the battery module or
Logical operationss, obtain the Security analysis result and degree of safety of the battery module；
Communication interface arrangement, the communication interface arrangement are used to connect ancillary equipment, and the ancillary equipment includes that input through keyboard is filled
Put, control device, the finger-impu system for according to different security requirements, manually preset secure threshold, report
Required parameter when alert parameter and signal processing；The control device is used to send alarm command and control instruction；
The communication interface arrangement is connected with the signal processing apparatus, the signal pickup assembly and the signal processing device
Put and be connected, the battery system degree of safety display device is connected with the signal processing apparatus by the communication interface arrangement
Connect.
2. cell safety system for managing state according to claim 1, it is characterised in that the battery module is plumbic acid electricity
Pond, ickel-cadmium cell, Ni-MH battery, lithium ion battery, fuel cell, solaode, smee cell or lithium-sulfur cell.
3. cell safety system for managing state according to claim 1, it is characterised in that the signal processing device is set to can
Programming intellectual computing device, the programmable, intelligent computing device include DSP, digital computer, industry
Control machine, PC application and Single Chip MC in Embedded System.
4. cell safety system for managing state according to claim 1, it is characterised in that the communication interface arrangement it is logical
News mode includes Ethernet, CAN, 1553B buses, RS232 buses, 485 buses, bluetooth or wifi.
5. cell safety system for managing state according to claim 1, it is characterised in that the battery system degree of safety shows
Showing device can be shown using digital instrument or simulate instrument and be shown.
6. cell safety system for managing state according to claim 1, it is characterised in that the battery system degree of safety shows
Showing device can using LCD display, UFB display, STN display, OLED display, TFT display, light-emitting diode display or
Person's CRT monitor, or electric vehicle instrument disk, mobile phone, MP4, MP5, ipad.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201621117534.3U CN206049377U (en) | 2016-10-12 | 2016-10-12 | A kind of cell safety system for managing state |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106364322A (en) * | 2016-10-12 | 2017-02-01 | 王怀云 | System and method for managing safety condition of battery |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106364322A (en) * | 2016-10-12 | 2017-02-01 | 王怀云 | System and method for managing safety condition of battery |
| CN106364322B (en) * | 2016-10-12 | 2019-03-26 | 王怀云 | A kind of cell safety system for managing state and method |
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Granted publication date: 20170329 Termination date: 20191012 |