CN110061478A - A kind of battery pack thread-breakage protecting and system - Google Patents
A kind of battery pack thread-breakage protecting and system Download PDFInfo
- Publication number
- CN110061478A CN110061478A CN201910350930.2A CN201910350930A CN110061478A CN 110061478 A CN110061478 A CN 110061478A CN 201910350930 A CN201910350930 A CN 201910350930A CN 110061478 A CN110061478 A CN 110061478A
- Authority
- CN
- China
- Prior art keywords
- overvoltage
- delay meter
- breaking protection
- protection
- voltage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/18—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for batteries; for accumulators
Abstract
A kind of battery pack thread-breakage protecting provided by the invention, comprising: the scanning of overvoltage discharge examination is carried out to battery pack；It is lower than Cross prevention threshold value based on the voltage detected, is scanned when carrying out overvoltage discharge prevention delay meter with burn out detection；Based on detect broken string, suspend overvoltage discharge prevention delay meter when and carry out breaking protection delay meter when；Sustained sensed voltage before writing all in overvoltage discharge prevention delay meter, persistently detection is broken before writing all in breaking protection delay meter；When based on writing all in breaking protection delay meter, it is not continuously detected broken string, when restoring over-voltage discharge prevention delay meter；Burn out detection before writing all over when based on voltage detecting result and breaking protection delay meter before writing all in overvoltage discharge prevention delay meter is as a result, enter electric discharge overvoltage protection state or breaking protection state.Ensure that user during using battery pack, the safety of user when battery pack breaks.
Description
Technical field
The present invention relates to technical field of battery management, more particularly to a kind of battery pack thread-breakage protecting and system.
Background technique
In multi-lithium-batterprotection protection system, the line between battery core string and protection board is more.When being used for electrical source of power,
The positive and negative anodes of entire battery pack can be connected with thick line with protection board, and other intermediate node lines for being used to detect voltage are then usual
Use thinner signal wire.With the signal wire of these circuit aging intermediate nodes in contrast have break or snap can
Energy.When intermediate node breaks, protection board can not accurately detect the voltage status of related battery core, for this broken string situation,
Occurs the technology of some detection broken strings in the industry.
Past battery protection system way is that the battery core voltage status of broken string can not be judged in view of protection system, such as
Fruit detects that broken string, battery protection system are just both forbidden charging, and also forbids discharging.In this processing method, charging is forbidden to guarantee
It will not be overcharged with the battery core of protection board intermittent line, cause danger in charging process；Electric discharge is forbidden to ensure that and protection board
The battery core voltage of intermittent line will not be discharged into lower than the level for influencing battery life.Above-mentioned thread-breakage protecting reduces charging
When danger, while being beneficial to the service life of battery itself in electric discharge.But the peace that above-mentioned guard method is used in user
Shortcomings in terms of full guard.For example, if it is the electric vehicle in being currently running, unmanned vehicle, etc. in equipment
The route that level detection occurs being responsible between protection board in multisection lithium battery group disconnects, then protected according to the method described above
Battery pack can then discharge without the interruption of omen, lose the electric vehicle of power supply suddenly, and unmanned vehicle will be out of control, this is possible to make
At user or other people economic loss or personal injury.
Summary of the invention
In view of this, the embodiment of the present application provides a kind of battery pack thread-breakage protecting and system.
In a first aspect, the embodiment of the present application provides a kind of battery pack thread-breakage protecting, which comprises
The scanning of overvoltage discharge examination is carried out to battery pack；
Based on the voltage detected be lower than Cross prevention threshold value, carry out overvoltage discharge prevention delay meter when and burn out detection
Scanning；
Based on detect broken string, suspend overvoltage discharge prevention delay meter when and carry out breaking protection delay meter when；
Sustained sensed voltage before writing all in overvoltage discharge prevention delay meter, holds before writing all in breaking protection delay meter
Continuous detection broken string；
When based on writing all in breaking protection delay meter, it is not continuously detected broken string, the delay of restoring over-voltage discharge prevention
Timing；
Note when based on voltage detecting result and breaking protection delay meter before being write all in overvoltage discharge prevention delay meter
Burn out detection before full is as a result, enter electric discharge overvoltage protection state or breaking protection state.
In alternative embodiment, the voltage detecting result based on before being write all in overvoltage discharge prevention delay meter and disconnected
Line guard delay timing write all over before burn out detection as a result, enter electric discharge overvoltage protection state or breaking protection state include:
Before writing all in breaking protection delay meter, it is continuously detected broken string, into breaking protection state, protection system is forbidden
It charges to battery pack, is not prohibited by battery power discharge.
In alternative embodiment, the voltage detecting result based on before being write all in overvoltage discharge prevention delay meter and disconnected
Line guard delay timing write all over before burn out detection as a result, enter electric discharge overvoltage protection state or breaking protection state also wrap
It includes:
When writing all in overvoltage discharge prevention delay meter, it is continuously detected brownout, into electric discharge overvoltage protection
State, battery protection system forbid battery power discharge.
In alternative embodiment, breaking protection delay time is shorter than overvoltage discharge prevention delay time.
In alternative embodiment, described based on the Cross prevention threshold value detected, overvoltage discharge prevention delay meter is carried out
When and burn out detection scanning in, burn out detection scanning be raising frequency burn out detection scan.
In alternative embodiment, a kind of battery pack thread-breakage protecting and system, further includes:
It is not below Cross prevention threshold value based on the voltage detected, carries out burn out detection scanning；
If detecting broken string, breaking protection timing is carried out；
Based on before breaking protection timing is write all over, it is continuously detected broken string, into breaking protection state, protection system is forbidden
It charges to battery pack, is not prohibited by battery power discharge；Shielding electric discharge over-voltage protecting function.
Second aspect, the embodiment of the present application provide a kind of battery protection system, comprising:
Acquisition unit is used to acquire the voltage of battery pack, and according to collected voltage triggered overvoltage discharge prevention
When delay meter and when breaking protection delay meter；
Timing unit, when being used for battery pack progress overvoltage discharge prevention delay meter and when breaking protection delay meter；
Processing unit is used to handle the information of acquisition unit and timing unit feedback and triggers battery according to processing result
Group enters breaking protection state or electric discharge overvoltage protection state.
The embodiment of the present application has the following beneficial effects:
A kind of battery pack thread-breakage protecting provided by the embodiments of the present application and system, it is ensured that any in protection mechanism
The screening confirmation detected by breaking protection is required before electric discharge overvoltage protection movement, eliminates the floating as caused by breaking
Voltage leads to the overvoltage discharge prevention of mistake.In method provided by the embodiments of the present application, into breaking protection state, it is not prohibited by
Battery power discharge ensure that user during using battery pack, the safety of user when battery pack breaks.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, required use in being described below to embodiment
Attached drawing be briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for this
For the those of ordinary skill of field, without creative efforts, it can also be obtained according to these attached drawings others
Attached drawing.
Fig. 1 shows a kind of flow chart of battery pack thread-breakage protecting of the application；
Fig. 2 shows a kind of structural schematic diagrams of battery protection system of the application.
Specific embodiment
The application is described in further detail combined with specific embodiments below, but not as the restriction to the application.?
In following the description, what different " embodiment " or " embodiment " referred to is not necessarily the same embodiment.In addition, one or more are implemented
Special characteristic, structure or feature in example can be combined by any suitable form.
Fig. 1 is a kind of flow diagram of battery pack thread-breakage protecting provided in an embodiment of the present invention, as shown in Figure 1,
Including step S101-S401.
Step S101 carries out the scanning of overvoltage discharge examination.
Step S102, judges whether the voltage detected is lower than Cross prevention threshold value, if the voltage detected was not less than
Protection threshold value is put, S201 is thened follow the steps.If the voltage detected is lower than Cross prevention threshold value, S301 is thened follow the steps.
Step S201 carries out burn out detection scanning.
Wherein, when the voltage detected is not less than Cross prevention threshold value, the burn out detection scanning of progress is nominal frequencies
Broken string scanning, at this time break scan frequency it is low, can reduce the power consumption of routine work.
Step S202 judges whether to detect broken string, if detecting broken string execution step S203, hold if broken string is not detected
Row step S102.
Step S203, carries out the burn out detection scanning of nominal frequencies, and starts conventional delay protection timing of breaking.
Step S204 judges whether to be continuously detected broken string, write all over when breaking protection delay meter.If in breaking protection
When being write all over when delay meter, it is continuously detected broken string, then enters step S401, if write all in breaking protection delay meter, not held
It is continuous to detect broken string, then enter step S102.
Wherein, start delay protection timing of breaking to when breaking in primary detection, determine in broken string delay protection timing note
Man Shi is continuously detected broken string and just enters breaking protection state.It ensures and detects that broken string is not occasional case.
Step S401, into breaking protection state, protection system forbids charging to battery pack, is not prohibited by and puts to battery pack
Electricity.
Wherein, when battery protection system powers off, protection system forbids charging to battery pack, powers off between protection board
Battery core will not be overcharged, cause danger during the charging process.Being not prohibited by electric discharge ensure that user in the mistake using battery pack
Safety in journey, avoid battery pack occur without omen interruption electric discharge, caused by contingency.
Step S301 when carrying out overvoltage discharge prevention delay meter, carries out burn out detection scanning.
Wherein, after when starting overvoltage discharge prevention delay meter, burn out detection scanning is carried out.Preferably, raising frequency is carried out
Burn out detection scanning.In order to reduce the power consumption of routine work, (detect that battery core voltage is protected not less than over-discharge under conventional sense
When protecting threshold value) burn out detection scan frequency is low.When detecting battery core voltage lower than Cross prevention threshold value, in order to improve broken string
Detection rates avoid being strayed into electric discharge overvoltage discharge prevention, need to improve burn out detection scan frequency.And battery voltage at this time
Abnormal, battery pack can receive the defencive function that battery protection system is guarantee system and temporarily improve power consumption.
While starting the timing of overvoltage discharge prevention, start the burn out detection scanning of raising frequency.Detecting battery pack
Voltage be lower than pre-set Cross prevention threshold value when, can not judge the reason for causing voltage value too low at this time.Therefore into
Enter to discharge before overvoltage protection state, needing to exclude the floating voltage as caused by breaking leads to the electric discharge overvoltage protection of mistake.
Therefore while needs when starting overvoltage discharge prevention delay meter, start the burn out detection scanning of raising frequency.
Step S302 judges whether to detect broken string, if detecting broken string execution step S303, hold if broken string is not detected
Row step S301.
Step S303 carries out the burn out detection scanning of raising frequency, when suspending overvoltage discharge prevention delay meter, starts broken string and protects
When protecting delay meter.
Step S304 judges whether that be continuously detected broken string writes all over when breaking protection delay meter.If in breaking protection
It is continuously detected broken string when writing all over when delay meter and executes step S401, if not detected persistently when being write all in breaking protection delay meter
Step S305 is executed to broken string.
Step S305, when restoring over-voltage discharge prevention delay meter.
After detecting broken string, when suspending overvoltage discharge prevention delay meter, when starting breaking protection delay meter.Breaking
Before guard delay meter is write all over, the burn out detection of raising frequency is persistently carried out.After detecting broken string, pause overvoltage discharge prevention delay
Timing, it is ensured that before entering overvoltage discharge prevention state, by the screening of breaking protection detection.If after detecting broken string
When not suspending overvoltage discharge prevention delay meter, it is understood that there may be following situation: after detecting broken string, overvoltage discharge prevention prolongs
All carried out at the same time when slow timing and breaking protection delay meter, when due to overvoltage discharge prevention delay meter at the beginning of earlier than
At the beginning of when breaking protection delay meter, i.e., overvoltage protection delay meter when may be write all over earlier than breaking protection delay meter.It reaches
Less than the screening this purpose before entering overvoltage discharge prevention state, detected by breaking protection.
When detecting broken string, when suspending overvoltage discharge prevention delay meter.When being write all in breaking protection delay meter not
It is continuously detected broken string, then when restoring over-voltage discharge prevention delay meter.For overvoltage discharge prevention delay time and broken string
The guard delay time is not specifically limited.Preferably, breaking protection delay time can be arranged and is shorter than overvoltage discharge prevention
Delay time.Since in the case where the voltage detected is lower than Cross prevention threshold value, progress is that the burn out detection of raising frequency is swept
It retouches, the setting of breaking protection delay time is shorter than overvoltage discharge prevention delay time, can be guaranteed in breaking protection delay meter
When Shi Jiman, the non-occasional case of the broken string detected.The setting of breaking protection delay time is shorter, battery pack can be terminated as early as possible
Abnormality so that battery pack is entered overvoltage protection state or breaking protection state.
Step S306, judges whether to be continuously detected that voltage value is too low to be write all over when overvoltage discharge prevention delay meter.
If write all in overvoltage discharge prevention delay meter, it is continuously detected brownout, thens follow the steps S307, if in overvoltage
It is not continuously detected brownout when writing all over when discharge prevention delay meter, thens follow the steps S102.
Broken string is all not detected when if writing all in overvoltage protection delay meter, i.e., in overvoltage discharge prevention delay meter
Step S301, step S302, step S306 are executed before writing all over.After going to step S306, if prolonging in overvoltage discharge prevention
When slow timing is write all over, it is continuously detected brownout, then enters electric discharge overvoltage protection state, battery protection system forbids battery
Group electric discharge.Be not continuously detected brownout when if writing all in overvoltage discharge prevention delay meter, persistently to battery pack into
Row burn out detection.
Step S307, into electric discharge overvoltage protection state, battery protection system forbids battery power discharge.
The case where above-described embodiment is likely to occur for the present invention, but it is not limited only to the case where above embodiments are included.
The embodiment of the invention provides a kind of battery protection system, which can realize that the broken string in above-described embodiment is protected
Maintaining method, the embodiment of above-mentioned thread-breakage protecting can be used for understanding and illustrating the embodiment of following battery protection system.Together
Sample, the embodiment of following battery protection system can be used for understanding above method embodiment.
Fig. 2 be a kind of structural schematic diagram of battery pack broken yarn protection system provided in an embodiment of the present invention referring to fig. 2, this hair
The battery pack broken yarn protection system of bright embodiment includes:
Acquisition unit 20 is used to acquire the voltage of battery pack, and is discharged and protected according to collected voltage triggered overvoltage
Protect timing and breaking protection timing；
Wherein, acquisition unit 20 acquires the voltage of battery pack.By the voltage of acquisition and Cross prevention threshold value comparison, work as detection
It is scanned the voltage value arrived carries out overvoltage discharge prevention delay meter when being lower than Cross prevention threshold value when with burn out detection, in overvoltage
Need to continue the voltage of detection battery pack when discharge prevention delay meter before writing all over；When the voltage value of detection is higher than Cross prevention threshold value
The scanning of Shi Jinhang burn out detection.
Timing unit 21, be used for battery pack carry out overvoltage discharge prevention delay meter when and breaking protection timing；
Processing unit 22 is used to handle the information that acquisition unit 20 and timing unit 21 are fed back and is touched according to processing result
Hair battery pack enters breaking protection state or electric discharge overvoltage protection state.
Further, timing unit 21 includes the first timing unit and the second timing unit, the first timing list in the present embodiment
When member is used for overvoltage discharge prevention delay meter, when the second timing unit postpones based on breaking protection.First timing unit and
After second timing unit timing is write all over, writes timing all over information and be sent to processing unit 22.Processing unit 22 will receive
Information from acquisition unit 20 and timing unit 21 is handled, and is specifically included, and when writing all in breaking protection delay meter, is held
Continuous to detect broken string, into breaking protection state, protection system forbids charging to battery pack, is not prohibited by battery power discharge.In mistake
When tension discharge guard delay timing is write all over, broken string is not detected and is continuously detected brownout and then enters overvoltage protection shape
State, battery protection system forbid battery power discharge.
Above-described specific embodiment has carried out further the purpose of the present invention, technical scheme and beneficial effects
It is described in detail, it should be understood that being not intended to limit the present invention the foregoing is merely a specific embodiment of the invention
Protection scope, all any modification, equivalent substitution, improvement and etc. on the basis of technical solution of the present invention, done should all
Including within protection scope of the present invention.
Claims (7)
1. a kind of battery pack thread-breakage protecting, comprising:
The scanning of overvoltage discharge examination is carried out to battery pack；
It is lower than Cross prevention threshold value based on the voltage detected, is swept when carrying out overvoltage discharge prevention delay meter with burn out detection
It retouches；
Based on detect broken string, suspend overvoltage discharge prevention delay meter when and carry out breaking protection delay meter when；
Sustained sensed voltage before writing all in overvoltage discharge prevention delay meter, is persistently examined before writing all in breaking protection delay meter
Survey broken string；
When based on writing all in breaking protection delay meter, it is not continuously detected broken string, when restoring over-voltage discharge prevention delay meter；
Before being write all over when based on voltage detecting result and breaking protection delay meter before being write all in overvoltage discharge prevention delay meter
Burn out detection as a result, entering electric discharge overvoltage protection state or breaking protection state.
2. the method according to claim 1, wherein described be based on writing all in overvoltage discharge prevention delay meter
When burn out detection when writing all over of voltage detecting result and when breaking protection delay meter as a result, entering electric discharge overvoltage protection state
Or breaking protection state includes:
When writing all in breaking protection delay meter, it is continuously detected broken string, into breaking protection state, protection system is forbidden to electricity
The charging of pond group, is not prohibited by battery power discharge.
3. the method according to claim 1, wherein described be based on writing all in overvoltage discharge prevention delay meter
Burn out detection before writing all over when preceding voltage detecting result and breaking protection delay meter is as a result, enter electric discharge overvoltage protection state
Or breaking protection state further include:
When writing all in overvoltage discharge prevention delay meter, be continuously detected brownout, into electric discharge overvoltage protection state,
Battery protection system forbids battery power discharge.
4. being protected the method according to claim 1, wherein the breaking protection delay time is shorter than overvoltage electric discharge
Protect delay time.
5. the method according to claim 1, wherein being carried out described based on the Cross prevention threshold value detected
In the timing of overvoltage discharge prevention and burn out detection scanning, burn out detection scanning is that the burn out detection of raising frequency scans.
6. according to the method described in claim 1, further include:
It is not below Cross prevention threshold value based on the voltage detected, carries out burn out detection scanning；
If detecting broken string, breaking protection timing is carried out；
Based on before breaking protection timing is write all over, it is continuously detected broken string, into breaking protection state, protection system is forbidden to electricity
The charging of pond group, is not prohibited by battery power discharge；Shielding electric discharge over-voltage protecting function.
7. a kind of battery protection system, comprising:
Acquisition unit is used to acquire the voltage of battery pack, and is postponed according to collected voltage triggered overvoltage discharge prevention
When timing and breaking protection delay meter；
Timing unit, when being used for battery pack progress overvoltage discharge prevention delay meter and when breaking protection delay meter；
Processing unit, be used to handle acquisition unit and timing unit feedback information and according to processing result trigger battery pack into
Enter breaking protection state or electric discharge overvoltage protection state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910350930.2A CN110061478B (en) | 2019-04-28 | 2019-04-28 | Battery pack disconnection protection method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910350930.2A CN110061478B (en) | 2019-04-28 | 2019-04-28 | Battery pack disconnection protection method and system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110061478A true CN110061478A (en) | 2019-07-26 |
| CN110061478B CN110061478B (en) | 2022-04-15 |
Family
ID=67321444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910350930.2A Active CN110061478B (en) | 2019-04-28 | 2019-04-28 | Battery pack disconnection protection method and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110061478B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111693901A (en) * | 2020-07-28 | 2020-09-22 | 南京微盟电子有限公司 | A broken string detecting system for multisection lithium cell protection chip |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011021880A2 (en) * | 2009-08-21 | 2011-02-24 | 주식회사 레오모터스 | System and method for preventing excessive charging or excessive discharging of batteries |
| CN102723754A (en) * | 2012-06-01 | 2012-10-10 | 惠州市亿能电子有限公司 | Identifying circuit and identifying method of broken line of battery pack acquisition line of battery management system |
| CN105277902A (en) * | 2015-11-27 | 2016-01-27 | 中颖电子股份有限公司 | Battery abnormal-state detection circuit and battery abnormal-state detection circuit system |
| CN107171405A (en) * | 2017-07-12 | 2017-09-15 | 长沙方星腾电子科技有限公司 | A kind of battery bag with breaking protection technology |
| CN107543985A (en) * | 2017-06-30 | 2018-01-05 | 西安华泰半导体科技有限公司 | A kind of more piece battery core protection board break detection circuit |
| CN108732448A (en) * | 2017-04-24 | 2018-11-02 | 凹凸电子（武汉）有限公司 | Wire break detection method and broken string in battery management system release detection method |
| CN109066903A (en) * | 2018-09-20 | 2018-12-21 | 深圳市富满电子集团股份有限公司 | A kind of battery broken yarn protection system and method |
-
2019
- 2019-04-28 CN CN201910350930.2A patent/CN110061478B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011021880A2 (en) * | 2009-08-21 | 2011-02-24 | 주식회사 레오모터스 | System and method for preventing excessive charging or excessive discharging of batteries |
| CN102723754A (en) * | 2012-06-01 | 2012-10-10 | 惠州市亿能电子有限公司 | Identifying circuit and identifying method of broken line of battery pack acquisition line of battery management system |
| CN105277902A (en) * | 2015-11-27 | 2016-01-27 | 中颖电子股份有限公司 | Battery abnormal-state detection circuit and battery abnormal-state detection circuit system |
| CN108732448A (en) * | 2017-04-24 | 2018-11-02 | 凹凸电子（武汉）有限公司 | Wire break detection method and broken string in battery management system release detection method |
| CN107543985A (en) * | 2017-06-30 | 2018-01-05 | 西安华泰半导体科技有限公司 | A kind of more piece battery core protection board break detection circuit |
| CN107171405A (en) * | 2017-07-12 | 2017-09-15 | 长沙方星腾电子科技有限公司 | A kind of battery bag with breaking protection technology |
| CN109066903A (en) * | 2018-09-20 | 2018-12-21 | 深圳市富满电子集团股份有限公司 | A kind of battery broken yarn protection system and method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111693901A (en) * | 2020-07-28 | 2020-09-22 | 南京微盟电子有限公司 | A broken string detecting system for multisection lithium cell protection chip |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110061478B (en) | 2022-04-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11353515B2 (en) | Thermal runaway detection circuit and method | |
| US7928696B2 (en) | Method for ensuring safe use of a battery pack after impact | |
| CN207732041U (en) | energy storage device | |
| EP2161812A1 (en) | Power supply system, and power supply control method and power supply control program employed in power supply system | |
| CN103701163A (en) | Battery, aircraft with battery and battery control method | |
| US6208148B1 (en) | Battery charger | |
| CN110061478A (en) | A kind of battery pack thread-breakage protecting and system | |
| CN104425793A (en) | Battery pack, power tool and battery charger | |
| CN106549439A (en) | A kind of battery temperature measure and control device, method and mobile terminal | |
| CN110162188A (en) | Screen eye care method, device and terminal device | |
| JP2014018034A (en) | Battery pack | |
| CN106458038B (en) | It runs the method for Storage Unit, implement the battery management system of this method | |
| CN207304106U (en) | A kind of energy saving fire-fighting emergency power supply charge protection device | |
| CN106654429B (en) | Battery control method and system | |
| CN107171373A (en) | Battery protecting method and device, terminal | |
| JP2007104745A (en) | Mobile communication terminal and battery pack | |
| CN111525644A (en) | Battery management system and battery management method | |
| JP2021525437A (en) | Battery management device and method | |
| US6518728B2 (en) | Secondary battery device and method of protecting an overdischarge of the same | |
| JP2015097444A (en) | Voltage controller, voltage control method, and voltage control system | |
| CN211856719U (en) | Electrostatic discharge and overvoltage protection early warning device and server connection system | |
| CN109888723A (en) | One kind having earth leakage protective intelligent electric meter control system and control method | |
| KR101629172B1 (en) | Battery management system with self-consumption power down capability | |
| CN205621814U (en) | Power battery system safety arrangement and power battery system | |
| KR20100000347A (en) | Apparatus and method for charging control in portable electronic equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |