CN206992682U - Battery protecting circuit - Google Patents
Battery protecting circuit Download PDFInfo
- Publication number
- CN206992682U CN206992682U CN201720767144.9U CN201720767144U CN206992682U CN 206992682 U CN206992682 U CN 206992682U CN 201720767144 U CN201720767144 U CN 201720767144U CN 206992682 U CN206992682 U CN 206992682U
- Authority
- CN
- China
- Prior art keywords
- super
- circuit
- discharge
- resistance
- total 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.)
- Expired - Fee Related
Links
Landscapes
- Protection Of Static Devices (AREA)
Abstract
The utility model discloses a kind of battery protecting circuit, the battery protecting circuit includes：Super-charge super-discharge detection circuit, fault signal circuit, total voltage detection circuit, switch controller, discharge control switch and charging control switch；The super-charge super-discharge state of the super-charge super-discharge detection electric circuit inspection battery, the fault signal circuit transmit the super-charge super-discharge State Transferring to the switch controller into digital fault signal, and by the digital fault signal；The total voltage of the total voltage detection circuit detection battery, and the total voltage is transmitted to the switch controller；The switch controller controls the disconnection of the discharge control switch and charging control switch with digital fault-signal according to the total voltage or connected; the battery protecting circuit can determine whether the multiple batteries are in overcharging state or cross and put state; every batteries need not be judged, simplify circuit.
Description
Technical field
It the utility model is related to power technique fields, more particularly to a kind of battery protecting circuit.
Background technology
The super-charge super-discharge state of battery is typically detected by battery protection ic, is overcharged by being set in every batteries
Cross and put detection IC, realize the detection to the super-charge super-discharge state of every batteries, and overcharging per batteries is received by controller
Cross and put status signal, and control and overcharge on-off circuit accordingly, cross and put on-off circuit.So as to realize the protection to battery.Due to
The detection to every batteries progress super-charge super-discharge is needed, and needs the judgement to every batteries progress super-charge super-discharge to control correspondingly
Overcharge switch, cross decontrol close, so as to add the quantity of product component, also increase cost.
Utility model content
The utility model is intended to one of technical problem at least solving in correlation technique to a certain extent.Therefore, this reality
It is to propose a kind of battery protecting circuit with a new purpose.
To achieve the above object, according to the battery protecting circuit of the utility model embodiment, the battery protecting circuit bag
Include：
Super-charge super-discharge detection circuit, fault signal circuit, total voltage detection circuit, switch controller, discharge control switch,
Charging control switch；
Super-charge super-discharge detection circuit is no less than one, it is described be no less than a super-charge super-discharge detection circuit respectively with institute
State fault signal circuit and total voltage detection circuit connection；The fault signal circuit is also connected with the switch controller；Institute
Total voltage detection circuit is stated also to be connected with the switch controller；Switch controller is also respectively with the discharge control switch and filling
Electric control switch connects；
The super-charge super-discharge state of super-charge super-discharge detection electric circuit inspection battery, and by the super-charge super-discharge state send to
The fault signal circuit, the fault signal circuit is by the super-charge super-discharge State Transferring into digital fault signal and by described in
Digital fault signal is transmitted to the switch controller；The total voltage of the total voltage detection circuit detection battery, and by described in
Total voltage is transmitted to the switch controller；The switch controller is according to the total voltage and the control of digital fault-signal
The disconnection of discharge control switch and charging control switch connects.
According to one embodiment of the present utility model, the super-charge super-discharge detection circuit includes the integrated electricity of super-charge super-discharge detection
Road, first resistor, the first electric capacity, second resistance, 3rd resistor, the first triode, the 4th resistance and the 5th resistance；
The super-charge super-discharge detection integrated circuit produces failure drive signal, and drives first triode ON, institute
State after the 4th resistance and the 5th resistance carry out partial pressure to the total voltage and be output to the fault signal circuit.
According to one embodiment of the present utility model, super-charge super-discharge detection circuit that is no less than is serially connected.
According to one embodiment of the present utility model, the fault signal circuit includes the second triode and the 6th resistance；
Second transistor base is connected with super-charge super-discharge detection circuit, second transistor emitter and ginseng
Connecting with examining, second transistor collector is connected with one end of the 6th resistance and switch controller respectively, and described
The other end of six resistance is connected with power supply
The fault signal circuit to it is described filled put detection circuit caused by fault-signal be digitized.
According to one embodiment of the present utility model, the total voltage detection circuit includes the first amplifier, the 7th resistance
With the 8th resistance；
7th resistance and the 8th resistance input first amplifier after carrying out partial pressure to the total voltage, and described the
One amplifier forms voltage follower.
The utility model embodiment detects the super-charge super-discharge state of electric circuit inspection battery, fault-signal electricity by super-charge super-discharge
Road described fill was put into the super-charge super-discharge State Transferring for detecting circuit into digital fault signal；It is described to be no less than a total voltage inspection
Slowdown monitoring circuit detects the total voltage of the battery and transmits the total voltage to the switch controller；The switch controller root
Control the discharge control switch, charging control switch to be opened or closed according to the total voltage and digital fault-signal, realize
Monitoring to the charged state no less than a battery, when equipment uses multiple batteries, the utility model embodiment provides
Battery protecting circuit can determine whether the multiple batteries whether in overcharging state or cross put state, it is not necessary to every batteries are entered
The judgement of row super-charge super-discharge state, so as to simplify circuit, make circuit more succinct.Fault is reduced, reduces first device of circuit
Part, so as to reduce cost.
Brief description of the drawings
Fig. 1 is the battery protecting circuit structural representation that the utility model embodiment provides；
Fig. 2 is that the super-charge super-discharge that the utility model embodiment provides detects electrical block diagram；
Fig. 3 is the total voltage detection circuit structural representation that the utility model embodiment provides；
Fig. 4 is the fault signal circuit structural representation that the utility model embodiment provides；
Fig. 5 is that multiple super-charge super-discharges that the utility model embodiment provides detect electrical block diagram；
Fig. 6 is the switch controller structural representation that the utility model embodiment provides.
Reference：
Super-charge super-discharge detects circuit 10；
Fault signal circuit 11；
Total voltage detection circuit 12；
Switch controller 13；
Discharge control switch 14；
Charging control switch 15.
Realization, functional characteristics and the advantage of the utility model purpose will be described further referring to the drawings in conjunction with the embodiments.
Embodiment
Embodiment of the present utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning
Same or similar element is represented to same or similar label eventually or there is the element of same or like function.Below by ginseng
The embodiment for examining accompanying drawing description is exemplary, it is intended to for explaining the utility model, and it is not intended that to the utility model
Limitation.
In description of the present utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " suitable
The orientation or position relationship of the instruction such as hour hands ", " counterclockwise " are based on orientation shown in the drawings or position relationship, merely to just
In description the utility model and simplified description, rather than indicate or imply that signified device or element must be with specifically square
Position, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or
Implicitly include one or more this feature.In description of the present utility model, " multiple " are meant that two or two
More than, unless otherwise specifically defined.
In the utility model, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " Gu
Calmly ", the term such as " setting " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, on can understanding as the case may be
State concrete meaning of the term in the utility model.
Refering to Fig. 1 to Fig. 6, Fig. 1 is the battery protecting circuit structural representation that the utility model embodiment provides；Fig. 2 is
The super-charge super-discharge detection electrical block diagram that the utility model embodiment provides；Fig. 3 is what the utility model embodiment provided
Total voltage detection circuit structural representation；Fig. 4 is the fault signal circuit structural representation that the utility model embodiment provides；Figure
5 be that multiple super-charge super-discharges that the utility model embodiment provides detect electrical block diagram；Fig. 6 is the utility model embodiment
The switch controller structural representation of offer.
The battery protecting circuit includes：Super-charge super-discharge detection circuit 10, fault signal circuit 11, total voltage detection circuit
12nd, switch controller 13, discharge control switch 14, charging control switch 15.
Super-charge super-discharge detection circuit 10 is no less than one, described to be no less than a super-charge super-discharge detection circuit 10 and distinguish
It is connected with the fault signal circuit 11 and total voltage detection circuit 12；The fault signal circuit 11 also controls with the switch
Device 13 connects；The total voltage detection circuit 12 is also connected with the switch controller 13；Switch controller 13 also respectively with institute
State discharge control switch 14 and charging control switch 15 connects.
The super-charge super-discharge detection circuit 10 detects the super-charge super-discharge state of battery, and the super-charge super-discharge state is sent
To the fault signal circuit 11, the fault signal circuit 11 by the super-charge super-discharge State Transferring into digital fault signal simultaneously
The digital fault signal is transmitted to the switch controller 13；The total voltage detection circuit 12 detects total electricity of battery
Pressure, and the total voltage is transmitted to the switch controller 13；The switch controller 13 is according to the total voltage and numeral
Fault-signal controls the disconnection of the discharge control switch 14 and charging control switch 15 or connected.
Specifically, refering to Fig. 6.On switch controller 13 after electricity, the digital fault of fault signal circuit is first determined whether
Signal ODCC.
If digital fault signal ODCC is supply voltage VDD, represent that all batteries are normal, that is, without over-charging of battery or
Cross and put.Now judge the total voltage BTV.
If the total voltage BTV, which was less than, puts back to potential difference, the switch controller 13 controls charging control switch 15 to permit
Perhaps charge, do not allow that discharges
If the total voltage BTV is more than electric discharge hysteresis voltage less than hysteresis voltage is overcharged, the switch controller 13 controls
Charging control switch 15 and discharge control switch 14 allow to discharge and allow to charge.If it is in discharge condition, discharge switch plumber
Make, it is 0V to discharge into total voltage BTV less than overdischarge pressure or the digital fault signal ODCC, and switch controller 13 is judged as
Battery, which is crossed, to be put, and closes the discharge control switch 14.If being in charged state, it is charged to total voltage BTV and is more than overcharged voltage
Or digital fault signal ODCC is 0V, charge closing controlling switch 15.If now digital fault signal ODCC is 0V, described to open
The charge closing immediately of gateway controller 13, now the switch controller 13 can not shut down, it is necessary to which standby arrive digital fault signal
ODCC self- recoverages can shut down untill 1, in the process, it is allowed to battery discharge, not allow to charge again.
If digital fault signal ODCC starts shooting, the digital fault signal ODCC is 0V, and switch controller 13 is directly sentenced
Break and put to there is battery to cross.Now only allow to charge, do not allow to discharge.Discharge switch pipe is closed, into after charged state, charging 1
Minute, the digital fault signal ODCC remained as 0V, was judged as battery failures, alarmed, and prompted user to change battery；Conversely, fill
The digital fault signal ODCC voltages are changed into supply voltage VDD after electric 1 minute, then are judged as that truly having battery to cross puts, and
Through its voltage is charged into normal voltage by charging in 1 minute, because battery is crossed, to put rear actual capacity smaller, if battery do not have it is bad, 1
Minute is enough to allow battery to be charged to normal voltage, and now the switch controller 13 is judged as that battery is normal, it is allowed to continue to charge, one
Straight to be charged to total voltage BTV more than overcharged voltage or ODCC be 0V again, charge closing controlling switch 15.
Further, in the utility model embodiment, the super-charge super-discharge detection circuit 10 detects including super-charge super-discharge
Integrated circuit U1, first resistor R1, the first electric capacity C1, second resistance R2,3rd resistor R3, the first triode Q1, the 4th resistance
R4 and the 5th resistance R5.
Described first resistor R1 one end and the super-charge super-discharge detection integrated circuit U1 power end be connecteds, other end and
The battery positive connection；Described first electric capacity C1 one end is connected with super-charge super-discharge detection integrated circuit U1 earth terminal；
Other end is connected with the battery negative terminal, and described second resistance R2 one end, 3rd resistor R3 one end overcharged with described respectively
Detection integrated circuit the first output ends of U1 DOUT, the second output end COUT connections are put, the second resistance R2,3rd resistor R3 are public
End is connected with the first triode Q1 base stages altogether；The colelctor electrode of the first triode Q1 passes through the 4th resistance R4 and
Five resistance R5 are connected with reference ground；The emitter stage of the first triode Q1 is also connected with the battery positive.
The super-charge super-discharge detection integrated circuit U1 produces failure drive signal, and drives the first triode Q1 to lead
Logical, the 4th resistance R4 and the 5th resistance R5 is output to the fault signal circuit after carrying out partial pressure to the cell voltage
11。
Further, in the utility model embodiment, super-charge super-discharge detection circuit 10 that is no less than mutually is gone here and there
Connection.
Specifically, each described super-charge super-discharge detection circuit 10 detects the super-charge super-discharge state of the battery of a series connection.
And by the super-charge super-discharge status summary to the fault signal circuit.The fault signal circuit is to the battery of the series connection
State carries out unified fault detect.
Further, in the utility model embodiment, the fault signal circuit 11 includes the second triode Q2 and the
Six resistance R6；The second triode Q2 base stages are connected with super-charge super-discharge detection circuit 10, the second triode Q2 hairs
Emitter-base bandgap grading is connected with reference ground, the second triode Q2 colelctor electrodes one end with the 6th resistance R6 and switch controller respectively
13 connections, the other end of the 6th resistance R6 are connected with the supply voltage VDD.
The fault signal circuit to it is described filled put detection circuit caused by fault-signal be digitized.
Further, in the utility model embodiment, the total voltage detection circuit includes the first amplifier U2, the 7th
Resistance R7 and the 8th resistance R8.
The 7th resistance R7 and the 8th resistance R8 is serially connected, the common port of the 7th resistance R7 and the 8th resistance R8
It is connected with the positive input terminal of the first amplifier U2, the 7th resistance R7 other ends are connected with the battery positive output end；
The 9th resistance R9 other ends are connected with reference ground, the negative input end of the first amplifier U2 and the first amplifier U2
Output end connection, the output end of the first amplifier U2 is also connected with the switch controller 13.
The 7th resistance R7 and the 8th resistance R8 inputs the first amplifier U2 after carrying out partial pressure to the total voltage,
The first amplifier U2 forms voltage follower.The voltage follower inputs clean total voltage signal.
The utility model embodiment puts the super-charge super-discharge state of detection electric circuit inspection battery by being filled no less than one, therefore
Hinder signal circuit and the super-charge super-discharge is detected into the super-charge super-discharge State Transferring of circuit into digital fault signal；The total voltage inspection
Slowdown monitoring circuit detects the total voltage of the battery and transmits the total voltage to the switch controller；The switch controller root
Control the discharge control switch, charging control switch to be opened or closed according to the total voltage and digital fault-signal, realize
Monitoring to the charged state no less than a battery, when equipment uses multiple batteries, the utility model embodiment provides
Battery protecting circuit can determine whether the multiple batteries whether in overcharging state or cross put state, it is not necessary to every batteries are entered
The judgement of row super-charge super-discharge state, so as to simplify circuit, make circuit more succinct.Fault is reduced, reduces first device of circuit
Part, so as to reduce cost.
Embodiment of the present utility model is these are only, is not intended to limit the scope of the claims of the present utility model, although with reference to before
State embodiment the utility model is described in detail, for those skilled in the art comes, it still can be right
Technical scheme described in foregoing each embodiment is modified, or carries out equivalent replace to which part technical characteristic
Change.Every equivalent structure done using the utility model specification and accompanying drawing content, it is related to be directly or indirectly used in other
Technical field, similarly within the utility model patent protection domain.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the present utility model.In this manual, to the schematic table of above-mentioned term
State and be not necessarily referring to identical embodiment or example.Moreover, specific features, structure, material or the feature of description can be
Combined in an appropriate manner in any one or more embodiments or example.
Although embodiment of the present utility model has been shown and described above, it is to be understood that above-described embodiment is
Exemplary, it is impossible to it is interpreted as not departing from the utility model to limitation of the present utility model, one of ordinary skill in the art
Principle and objective in the case of above-described embodiment can be changed in the scope of the utility model, change, replace and
Modification.
Claims (5)
1. a kind of battery protecting circuit, it is characterised in that the battery protecting circuit includes：
Super-charge super-discharge detection circuit, fault signal circuit, total voltage detection circuit, switch controller, discharge control switch, charging
Controlling switch；
Super-charge super-discharge detection circuit is no less than one, it is described be no less than a super-charge super-discharge detection circuit respectively with it is described therefore
Hinder signal circuit and total voltage detection circuit connection；The fault signal circuit is also connected with the switch controller；It is described total
Voltage detecting circuit is also connected with the switch controller；The switch controller is also respectively with the discharge control switch and filling
Electric control switch connects；
The super-charge super-discharge state of the super-charge super-discharge detection electric circuit inspection battery, and the super-charge super-discharge state is sent to described
Fault signal circuit；The fault signal circuit by the super-charge super-discharge State Transferring into digital fault signal, and by the number
Word fault-signal is transmitted to the switch controller；The total voltage of the total voltage detection circuit detection battery, and will be described total
Voltage is transmitted to the switch controller；The switch controller is put according to the total voltage and the control of digital fault-signal
The disconnection of electric control switch and charging control switch connects.
2. battery protecting circuit according to claim 1, it is characterised in that the super-charge super-discharge detection circuit includes overcharging
Cross and put detection integrated circuit, first resistor, the first electric capacity, second resistance, 3rd resistor, the first triode, the 4th resistance and the
Five resistance；
Super-charge super-discharge detection integrated circuit produces failure drive signal, and drives first triode ON, and described the
Four resistance and the 5th resistance are output to the fault signal circuit after carrying out partial pressure to cell voltage.
3. battery protecting circuit according to claim 1, it is characterised in that described to be no less than a super-charge super-discharge detection electricity
Road is serially connected.
4. battery protecting circuit according to claim 1, it is characterised in that the fault signal circuit includes the two or three pole
Pipe and the 6th resistance；
Second transistor base is connected with super-charge super-discharge detection circuit, second transistor emitter and reference ground
Connection, second transistor collector are connected with one end of the 6th resistance and switch controller respectively, the 6th electricity
The other end of resistance is connected with power supply；
The fault signal circuit to it is described filled put detection circuit caused by fault-signal be digitized.
5. battery protecting circuit according to claim 1, it is characterised in that the total voltage detection circuit is put including first
Big device, the 7th resistance and the 8th resistance；
7th resistance and the 8th resistance input first amplifier after carrying out partial pressure to the total voltage, and described first puts
Big device forms voltage follower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720767144.9U CN206992682U (en) | 2017-06-28 | 2017-06-28 | Battery protecting circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720767144.9U CN206992682U (en) | 2017-06-28 | 2017-06-28 | Battery protecting circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206992682U true CN206992682U (en) | 2018-02-09 |
Family
ID=61400061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720767144.9U Expired - Fee Related CN206992682U (en) | 2017-06-28 | 2017-06-28 | Battery protecting circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206992682U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111987755A (en) * | 2019-05-24 | 2020-11-24 | 宝时得科技（中国）有限公司 | Battery pack |
-
2017
- 2017-06-28 CN CN201720767144.9U patent/CN206992682U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111987755A (en) * | 2019-05-24 | 2020-11-24 | 宝时得科技（中国）有限公司 | Battery pack |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105429226B (en) | Large capacity charge-discharge battery manages system | |
| CN103941210B (en) | The checking monitoring system of a kind of BMS and method thereof | |
| CN207910511U (en) | Battery charge control circuit and dust catcher | |
| CN104901373B (en) | Balance-type charger and method | |
| CN101752624A (en) | A kind of equalizing charge of battery method and device | |
| CN101888097A (en) | Micro-power consumption high-capacity lithium-ion power battery group management device | |
| CN102376979A (en) | Charge-discharge automatically equalized lithium-ion power battery series battery pack | |
| CN206283270U (en) | A kind of passive equalizing circuit of inexpensive high current suitable for echelon battery set management | |
| CN209658955U (en) | Power module | |
| CN206992682U (en) | Battery protecting circuit | |
| CN201298740Y (en) | Equalizing charge apparatus for series battery set | |
| CN207098691U (en) | Power battery system, equalizing circuit thereof and electric automobile | |
| CN207717931U (en) | A kind of tester for protecting plate of lithium cell | |
| CN201985550U (en) | Series lithium ion power battery pack with automatic charge-discharge balance | |
| CN207382017U (en) | The charger detection circuit and battery management system of a kind of battery management system | |
| CN206673610U (en) | Intelligent battery management system | |
| CN207459768U (en) | A kind of charging control circuit | |
| CN202737514U (en) | Circuit guaranteeing equalization charge of each battery based on multi-section series-connection batteries | |
| CN107895938A (en) | A kind of lithium battery protection circuit and its guard method | |
| CN104410137B (en) | Charging protection circuit and electronic product | |
| CN204794046U (en) | Polymer battery protection shield circuit | |
| CN101145700A (en) | A serial connection charge balance control circuit and control method for smart battery group | |
| CN203434650U (en) | Battery management device | |
| CN106571496B (en) | Scalable modularization power battery system | |
| CN205791691U (en) | Multisection lithium battery uniform charging circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180209 Termination date: 20180628 |