CN205646784U - Lithium ion battery organizes charge and discharge protective circuit - Google Patents
Lithium ion battery organizes charge and discharge protective circuit Download PDFInfo
- Publication number
- CN205646784U CN205646784U CN201620431991.3U CN201620431991U CN205646784U CN 205646784 U CN205646784 U CN 205646784U CN 201620431991 U CN201620431991 U CN 201620431991U CN 205646784 U CN205646784 U CN 205646784U
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- China
- Prior art keywords
- circuit
- protection
- mos switch
- discharge
- drive circuit
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- Expired - Fee Related
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Abstract
The utility model provides a lithium ion battery organizes charge and discharge protective circuit, includes group battery, equalizer circuit, steady voltage reduction voltage circuit, overflow and detect IC, battery cell protection IC cascades combination, examine the current circuit, discharge and short -circuit protection drive circuit, discharge mos switch and ESD protect circuit, charge protection drive circuit and mos switch and the anti - limiting circuit that fills of charging, the group battery output loops through and examine the current circuit, discharges and short -circuit protection drive circuit, mos switch and the ESD protection circuit that discharges after export the load to and form the discharge circuit, external charger loops through and charges the mos switch and instead fill limiting circuit, charge protection drive circuit, discharge and short -circuit protection drive circuit, examine to be connected with the group battery output behind the current circuit and form charging circuit, add protection drive circuit in the charge -discharge return circuit, when the circuit medium voltage was too big, drive circuit can in time control the shutoff of mos switch tube.
Description
Technical field
This utility model relates to lithium ion battery, a kind of charge-discharge protection circuit for unmanned plane Li-ion batteries piles.
Background technology
Along with popularizing of unmanned plane, unmanned plane parts are also with interest.Affecting the stepless of unmanned plane flying power is exactly its built-in lithium ion battery, and the charge-discharge protection circuit of Li-ion batteries piles can effectively ensure the life-span of set of cells and the use time of set of cells.Existing Li-ion batteries piles charge-discharge circuit typically can be provided with mos switching tube; electric discharge and the charged state of set of cells is cut off by controlling mos switching tube; certain time delay is there is yet with turning on and off of mos switch; when the overtension in loop; mos pipe may be damaged, causes whole charge-discharge protection circuit normally to work.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of Li-ion batteries piles charge-discharge protection circuit, when circuit voltage is too high, it is possible to turn off mos switching tube, effectively protection mos switching tube in time.
For solving above-mentioned technical problem; the technical solution of the utility model is: a kind of Li-ion batteries piles charge-discharge protection circuit; including set of cells, equalizing circuit, voltage stabilizing reduction voltage circuit, over-current detection IC, cell protection IC cascading, galvanometer circuit, electric discharge and short-circuit protection drive circuit, electric discharge mos switch and ESD protection circuit, charge protection drive circuit and charging mos switch and reversely charging limiting circuit；Described set of cells is connected with equalizing circuit；Described cell protection IC cascading includes that some cells protect IC, and each cell in set of cells is connected with a cell protection IC respectively；Described galvanometer circuit is connected with cell protection IC cascading；After described set of cells outfan passes sequentially through galvanometer circuit, electric discharge and short-circuit protection drive circuit, electric discharge mos switch and ESD protection circuit, output forms discharge circuit to load；External charger passes sequentially through charging mos and switchs and be connected formation charging circuit after reversely charging limiting circuit, charge protection drive circuit, electric discharge and short-circuit protection drive circuit, galvanometer circuit with set of cells outfan；The mos that described cell protects IC cascading to be controlled in electric discharge mos switch and ESD protection circuit by electric discharge and short-circuit protection drive circuit switchs；The mos that described cell protection IC cascading is controlled in charging mos switch and reversely charging limiting circuit by charge protection drive circuit switchs.This utility model sets up protection drive circuit in charging and discharging circuit, and when in circuit, voltage is excessive, drive circuit can control the shutoff of mos switching tube in time；Over-current detection IC arranged in circuit detects the size of current of set of cells, the strict output electric current controlling set of cells in real time；Cell protection IC cascading can control maximum voltage and the minimum voltage of each cell in set of cells, it is ensured that each single cell operation is at normal condition；The voltage of each cell is equalized by equalizing circuit, it is ensured that the service life of battery.
This utility model is compared with prior art had the benefit that
This utility model sets up protection drive circuit in charging and discharging circuit, and when in circuit, voltage is excessive, drive circuit can control the shutoff of mos switching tube in time, plays the effect of protection mos switching tube.
Accompanying drawing explanation
Fig. 1 is this utility model circuit structure block diagram.
Detailed description of the invention
Below in conjunction with Figure of description, the utility model is described in further detail.
As shown in Figure 1; a kind of Li-ion batteries piles charge-discharge protection circuit; including set of cells, equalizing circuit, voltage stabilizing reduction voltage circuit, over-current detection IC, cell protection IC cascading, galvanometer circuit, electric discharge and short-circuit protection drive circuit, electric discharge mos switch and ESD protection circuit, charge protection drive circuit and charging mos switch and reversely charging limiting circuit.Described set of cells is connected with equalizing circuit, and equalizing circuit includes some balance modules, is connected with cell respectively, and balance module includes mos pipe and chip MM3513.Described cell protection IC cascading includes that some cells protect IC, and each cell in set of cells is connected with a cell protection IC respectively, and described cell protection IC is chip 203CK.Described galvanometer circuit is connected with cell protection IC cascading.After described set of cells outfan passes sequentially through galvanometer circuit, electric discharge and short-circuit protection drive circuit, electric discharge mos switch and ESD protection circuit, output forms discharge circuit to load.External charger passes sequentially through charging mos and switchs and be connected formation charging circuit after reversely charging limiting circuit, charge protection drive circuit, electric discharge and short-circuit protection drive circuit, galvanometer circuit with set of cells outfan.The mos that described cell protects IC cascading to be controlled in electric discharge mos switch and ESD protection circuit by electric discharge and short-circuit protection drive circuit switchs.The mos that described cell protection IC cascading is controlled in charging mos switch and reversely charging limiting circuit by charge protection drive circuit switchs.
This utility model sets up protection drive circuit in charging and discharging circuit, and when in circuit, voltage is excessive, drive circuit can control the shutoff of mos switching tube in time；Over-current detection IC arranged in circuit detects the size of current of set of cells, the strict output electric current controlling set of cells in real time；Cell protection IC cascading can control maximum voltage and the minimum voltage of each cell in set of cells, it is ensured that each single cell operation is at normal condition；The voltage of each cell is equalized by equalizing circuit, it is ensured that the service life of battery.
Claims (1)
1.A kind of Li-ion batteries piles charge-discharge protection circuit, it is characterised in that: include set of cells, equalizing circuit, voltage stabilizing reduction voltage circuit, over-current detection IC , cell is protected IC Cascading, galvanometer circuit, electric discharge and short-circuit protection drive circuit, electric discharge mos Switch and ESD Protection circuit, charge protection drive circuit and charging mos Switch and reversely charging limiting circuit；Described set of cells is connected with equalizing circuit；Described cell is protected IC Cascading includes that some cells are protected IC , each cell in set of cells is protected with a cell respectively IC Connect；Described galvanometer circuit is protected with cell IC Cascading connects；Described set of cells outfan passes sequentially through galvanometer circuit, electric discharge and short-circuit protection drive circuit, electric discharge mos Switch and ESD After protection circuit, output forms discharge circuit to load；External charger passes sequentially through charging mos Switch and after reversely charging limiting circuit, charge protection drive circuit, electric discharge and short-circuit protection drive circuit, galvanometer circuit, be connected formation charging circuit with set of cells outfan；Described cell is protected IC Cascading controls electric discharge by electric discharge and short-circuit protection drive circuit mos Switch and ESD In protection circuit mos Switch；Described cell is protected IC Cascading controls charging by charge protection drive circuit mos In switch and reversely charging limiting circuit mos Switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620431991.3U CN205646784U (en) | 2016-05-13 | 2016-05-13 | Lithium ion battery organizes charge and discharge protective circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620431991.3U CN205646784U (en) | 2016-05-13 | 2016-05-13 | Lithium ion battery organizes charge and discharge protective circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205646784U true CN205646784U (en) | 2016-10-12 |
Family
ID=57060209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620431991.3U Expired - Fee Related CN205646784U (en) | 2016-05-13 | 2016-05-13 | Lithium ion battery organizes charge and discharge protective circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205646784U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106786928A (en) * | 2016-12-29 | 2017-05-31 | 惠州市蓝微新源技术有限公司 | A kind of BMS charge and discharge controls protection circuit |
-
2016
- 2016-05-13 CN CN201620431991.3U patent/CN205646784U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106786928A (en) * | 2016-12-29 | 2017-05-31 | 惠州市蓝微新源技术有限公司 | A kind of BMS charge and discharge controls protection circuit |
| CN106786928B (en) * | 2016-12-29 | 2023-10-20 | 惠州市蓝微新源技术有限公司 | BMS charge-discharge control protection circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20161012 Termination date: 20210513 |