CN206742921U - A kind of charge and discharge device of portable power source - Google Patents
A kind of charge and discharge device of portable power source Download PDFInfo
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- CN206742921U CN206742921U CN201720591639.0U CN201720591639U CN206742921U CN 206742921 U CN206742921 U CN 206742921U CN 201720591639 U CN201720591639 U CN 201720591639U CN 206742921 U CN206742921 U CN 206742921U
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- lithium battery
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- managing chip
- semiconductor
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
It the utility model is related to a kind of charge and discharge device of portable power source, lithium battery managing chip and MCU chip including interconnection, also include voltage collection circuit, current collection circuit, temperature collection circuit and charge-discharge control circuit, the lithium battery managing chip is connected by voltage collection circuit, current collection circuit, temperature collection circuit and charge-discharge control circuit with battery core respectively, and the charge-discharge control circuit is connected with charge and discharge electrical interface.Lithium battery managing chip gathers the various parameters of battery core by voltage collection circuit, current collection circuit, temperature collection circuit comprehensively, the parameter collected is sent to MCU chip again, parameter is analyzed and processed by MCU chip, judge whether the state of battery core is normal, and the discharge and recharge of battery core is controlled by charge-discharge control circuit, charge-discharge control circuit can be disconnected in time when battery core state occurs abnormal, it is ensured that the safety of portable power source and user.
Description
Technical field
It the utility model is related to portable power source technical field, more particularly to a kind of charge and discharge device of portable power source.
Background technology
With stepping up for people's living standard, the portable electronic such as smart mobile phone, tablet personal computer and digital camera is set
Standby increasingly to popularize, the life of modern can not leave various portable electric appts.Existing portable electric on the market
The problem of energy consumption of sub- equipment is higher, and generally existing cruising time is short, in order to solve this problem, user usually requires to be equipped with and moved
Dynamic power supply.
Generally, portable power source includes multiple battery cores, in order to protect the steady operation of portable power source, it usually needs right
The various parameters of multiple battery cores are detected.In the prior art, it is necessary to the circuit detected to the various parameters of multiple battery cores
Structure is more complicated, it is, therefore, desirable to provide the various parameters of multiple battery cores can be detected effectively by another scheme.
Utility model content
In order to overcome the above-mentioned deficiencies of the prior art, the utility model proposes a kind of charge and discharge device of portable power source,
It can be realized to the comprehensive parameter acquisition of battery core, with reference to MCU chip, Neng Gouyou by lithium battery managing chip and its peripheral circuit
Effect ensures the steady operation of portable power source, it is ensured that user security.
The technical scheme that the utility model solves above-mentioned technical problem is as follows：A kind of charge and discharge device of portable power source, bag
Include the lithium battery managing chip and MCU chip of interconnection, in addition to voltage collection circuit, current collection circuit, temperature acquisition
Circuit and charge-discharge control circuit, the lithium battery managing chip pass through voltage collection circuit, current collection circuit, temperature respectively
Acquisition Circuit and charge-discharge control circuit are connected with battery core, and the charge-discharge control circuit is connected with charge and discharge electrical interface.
The beneficial effects of the utility model are：Lithium battery managing chip by voltage collection circuit, current collection circuit,
Temperature collection circuit gathers the various parameters of battery core comprehensively, then the parameter collected is sent to MCU chip, by MCU chip pair
Parameter is analyzed and processed, and judges whether the state of battery core is normal, and the discharge and recharge of battery core is controlled by charge-discharge control circuit,
Charge-discharge control circuit can be disconnected in time when battery core state occurs abnormal, it is ensured that the safety of portable power source and user.
Further, the voltage collection circuit include R37, R38, R39, R40, R42 and C33, C34, C35, C78,
C36, the lithium battery managing chip are connected by VC1 pins, VC2 pins, VC3 pins, VC4 pins and VC5 pins with battery core；
The battery core is connected by R37 with the VC1 pins of lithium battery managing chip, the R37 and lithium battery managing chip
Between be grounded by C36；
The battery core is connected by R38 with the VC2 pins of lithium battery managing chip, the R38 and lithium battery managing chip
Between be grounded by C78；
The battery core is connected by R39 with the VC3 pins of lithium battery managing chip, the R39 and lithium battery managing chip
Between be grounded by C35；
The battery core is connected by R40 with the VC4 pins of lithium battery managing chip, the R40 and lithium battery managing chip
Between be grounded by C34；
The battery core is connected by R42 with the VC5 pins of lithium battery managing chip, the R42 and lithium battery managing chip
Between be grounded by C33.
Further, the current collection circuit includes R45, R47, R49 and C39, C45, C46；
The battery core is grounded by R47, the both ends of the R47 ARS1 pins and ARS2 with lithium battery managing chip respectively
Pin is connected；
The both ends of the R47 have been also respectively connected with R45 and R49, and C45 is connected between the R45 and R49, and the R45 leads to
C39 ground connection is crossed, the R49 is grounded by C46.
Further, the temperature collection circuit includes thermistor, the thermistor and lithium battery managing chip
AN1 pins are connected.
Further, the charge-discharge control circuit includes electric discharge metal-oxide-semiconductor and charging metal-oxide-semiconductor；
The G poles of the electric discharge metal-oxide-semiconductor are connected by R34 with the DSG pins of lithium battery managing chip, the charging metal-oxide-semiconductor
G poles be connected by R35 with the CHG pins of lithium battery managing chip；
The S poles of the electric discharge metal-oxide-semiconductor are extremely connected by R32 with the G for the metal-oxide-semiconductor that discharges, and the S poles of the charging metal-oxide-semiconductor pass through
R33 is extremely connected with the G for the metal-oxide-semiconductor that discharges, and the D poles of the electric discharge metal-oxide-semiconductor are extremely connected with the D of charging metal-oxide-semiconductor, the electric discharge metal-oxide-semiconductor
S poles pass sequentially through C27 and C28 with charge metal-oxide-semiconductor S be extremely connected.
Further, the lithium battery managing chip is SH366000AX chips.
Brief description of the drawings
Fig. 1 is a kind of module diagram of the charge and discharge device of portable power source of the utility model；
Fig. 2 is the circuit theory diagrams of the utility model lithium battery managing chip.
Embodiment
Principle of the present utility model and feature are described below in conjunction with accompanying drawing, example is served only for explaining this practicality
It is new, it is not intended to limit the scope of the utility model.
As shown in figure 1, Fig. 1 is a kind of module diagram of the charge and discharge device of portable power source of the utility model.One kind is moved
The charge and discharge device of dynamic power supply, include the lithium battery managing chip 1 and MCU chip 2 of interconnection, in addition to voltage collection circuit
3rd, current collection circuit 4, temperature collection circuit 5 and charge-discharge control circuit 6, the lithium battery managing chip 1 pass through electricity respectively
Pressure Acquisition Circuit 3, current collection circuit 4, temperature collection circuit 5 and charge-discharge control circuit 6 are connected with battery core 7, the charge and discharge
Electric control circuit 6 is connected with charge and discharge electrical interface 88.Wherein, the lithium battery managing chip 1 is SH366000AX chips, the electricity
Core 7 is graphene battery core.
Voltage collection circuit 3 is used for the voltage parameter for gathering battery core 7, and current collection circuit 4 is used for the electric current for gathering battery core 7
Parameter, temperature collection circuit 5 are used for the temperature parameter for gathering battery core 7, and charge-discharge control circuit 6 is used for the charge and discharge for controlling battery core 7
Electricity.In the state of normal, the voltage of battery core 7, electric current, temperature etc. should be in the scope fixed.By taking voltage as an example,
In the present embodiment, the voltage standard scope of each battery core 7 is 2.75-4.20V, when the real-time voltage of battery core 7 exceeds this model
When enclosing, illustrate the electric voltage exception of now battery core 7.Lithium battery managing chip 1 gathers the parameters such as the voltage, electric current, temperature of battery core 7
Afterwards, parameter is analyzed and processed by MCU chip 2, MCU chip 2 so that pass through lithium battery managing chip 1 control charge and discharge control
Circuit 6, realizes management of charging and discharging.MCU chip 2 analyzes and processes to parameter, judges whether the state of battery core 7 is normal, and lead to
The discharge and recharge that charge-discharge control circuit 6 controls battery core 7 is crossed, it is automatically controlled that charge and discharge can be disconnected in time when the state of battery core 7 occurs abnormal
Circuit 6 processed, it is ensured that the safety of portable power source and user.
The voltage collection circuit 3 includes R37, R38, R39, R40, R42 and C33, C34, C35, C78, C36, the lithium
Battery management chip 1 is connected by VC1 pins, VC2 pins, VC3 pins, VC4 pins and VC5 pins with battery core 7.
The battery core 7 is connected by R37 with the VC1 pins of lithium battery managing chip 1, the R37 and lithium battery management core
It is grounded between piece 1 by C36；The battery core 7 is connected by R38 with the VC2 pins of lithium battery managing chip 1, the R38 and lithium
It is grounded between battery management chip 1 by C78；The battery core 7 is connected by R39 with the VC3 pins of lithium battery managing chip 1,
It is grounded between R39 and the lithium battery managing chip 1 by C35；The battery core 7 passes through R40 and lithium battery managing chip 1
VC4 pins are connected, and are grounded between R40 and the lithium battery managing chip 1 by C34；The battery core 7 passes through R42 and lithium battery
The VC5 pins of managing chip 1 are connected, and are grounded between R42 and the lithium battery managing chip 1 by C33.
R37 and C36, R38 and C78, R39 and C35, R40 and C34, R42 and C33 separately constitute RC low-frequency filter circuits, go
Except high frequency ringing, strengthen communication stability, the accuracy that protection lithium battery managing chip 1U1 information is read.
The current collection circuit 4 includes R45, R47, R49 and C39, C45, C46.
The battery core 7 is grounded by R47, the both ends of the R47 respectively with the ARS1 pins of lithium battery managing chip 1 and
ARS2 pins are connected；The both ends of the R47 have been also respectively connected with R45 and R49, and C45 is connected between the R45 and R49, described
R45 is grounded by C39, and the R49 is grounded by C46.Battery core 7 can obtain electric current by R47.Isolation is played by R45 and R49
Effect, then differential mode noise is filtered out by C45, and C39, C46 are then used to remove common-mode noise.
The temperature collection circuit 5 includes thermistor, the AN1 pins of the thermistor and lithium battery managing chip 1
It is connected.The temperature of battery core 7 is monitored by thermistor, simplifies the design of circuit.
Charge-discharge control circuit 6 includes electric discharge metal-oxide-semiconductor Q5 and charging metal-oxide-semiconductor Q6.
The G poles of the electric discharge metal-oxide-semiconductor Q5 are connected by R34 with the DSG pins of lithium battery managing chip 1, the charging MOS
Pipe Q6 G poles are connected by R35 with the CHG pins of lithium battery managing chip 1.
The S poles of the electric discharge metal-oxide-semiconductor Q5 are extremely connected by R32 with the G for the metal-oxide-semiconductor Q5 that discharges, the S of the charging metal-oxide-semiconductor Q6
Pole is extremely connected by R33 with the G for the metal-oxide-semiconductor Q6 that charges, and the D poles of the electric discharge metal-oxide-semiconductor Q5 are extremely connected with charging metal-oxide-semiconductor Q6 D, institute
The S poles for stating electric discharge metal-oxide-semiconductor Q5 pass sequentially through C27 and C28 and are extremely connected with charging metal-oxide-semiconductor Q6 S.
Discharge metal-oxide-semiconductor Q5 and the metal-oxide-semiconductor that metal-oxide-semiconductor Q6 is low level conducting that charges, by lithium battery managing chip 1 to the two
Control, control to discharge and recharge can be achieved.Still by taking voltage as an example, the voltage standard scope of battery core 7 is 2.75-4.20V, when every
When the voltage of individual battery core 7 is between 2.75-4.20V, the DSG pins and CHG pins of lithium battery managing chip 1 export low
Level, now, the metal-oxide-semiconductor Q5 and charging metal-oxide-semiconductor Q6 that discharges all turn on, and can be charged and discharged operation；During charging,
When the voltage for detecting one of battery core 7, which has exceeded, overcharges protection voltage 4.20V, the DSG pins of lithium battery managing chip 1
Low level is exported, the CHG pins output high level of lithium battery managing chip 1, now discharge metal-oxide-semiconductor Q5 conductings and charging metal-oxide-semiconductor
Q6 ends, and can only carry out discharge operation, it is impossible to carry out charging operations；During electric discharge, when detecting one of battery core 7
Voltage when being less than 2.75V, the DSG pins output high level of lithium battery managing chip 1, the CHG pins of lithium battery managing chip 1
Low level is exported, now discharge metal-oxide-semiconductor Q5 cut-offs and the Q6 conductings of charging metal-oxide-semiconductor, can only carry out charging operations, it is impossible to discharged
Operation.
By setting electric discharge metal-oxide-semiconductor Q5 and charging metal-oxide-semiconductor Q6, it can in time disconnect and fill when the state of battery core 7 occurs abnormal
Charge/discharge control circuit 6, it is ensured that the safety of portable power source and user.
Preferred embodiment of the present utility model is the foregoing is only, it is all in this practicality not to limit the utility model
Within new spirit and principle, any modification, equivalent substitution and improvements made etc., guarantor of the present utility model should be included in
Within the scope of shield.
Claims (6)
- A kind of 1. charge and discharge device of portable power source, it is characterised in that：Lithium battery managing chip and MCU core including interconnection Piece, in addition to voltage collection circuit, current collection circuit, temperature collection circuit and charge-discharge control circuit, the lithium battery pipe Reason chip passes through voltage collection circuit, current collection circuit, temperature collection circuit and charge-discharge control circuit and battery core phase respectively Even, the charge-discharge control circuit is connected with charge and discharge electrical interface.
- A kind of 2. charge and discharge device of portable power source according to claim 1, it is characterised in that：The voltage collection circuit Including R37, R38, R39, R40, R42 and C33, C34, C35, C78, C36, the lithium battery managing chip by VC1 pins, VC2 pins, VC3 pins, VC4 pins and VC5 pins are connected with battery core；The battery core is connected by R37 with the VC1 pins of lithium battery managing chip, between R37 and the lithium battery managing chip It is grounded by C36；The battery core is connected by R38 with the VC2 pins of lithium battery managing chip, between R38 and the lithium battery managing chip It is grounded by C78；The battery core is connected by R39 with the VC3 pins of lithium battery managing chip, between R39 and the lithium battery managing chip It is grounded by C35；The battery core is connected by R40 with the VC4 pins of lithium battery managing chip, between R40 and the lithium battery managing chip It is grounded by C34；The battery core is connected by R42 with the VC5 pins of lithium battery managing chip, between R42 and the lithium battery managing chip It is grounded by C33.
- A kind of 3. charge and discharge device of portable power source according to claim 1, it is characterised in that：The current collection circuit Including R45, R47, R49 and C39, C45, C46；The battery core is grounded by R47, the both ends of the R47 ARS1 pins and ARS2 pins with lithium battery managing chip respectively It is connected；The both ends of the R47 have been also respectively connected with R45 and R49, and C45 is connected between the R45 and R49, and the R45 passes through C39 is grounded, and the R49 is grounded by C46.
- A kind of 4. charge and discharge device of portable power source according to claim 1, it is characterised in that：The temperature collection circuit Including thermistor, the thermistor is connected with the AN1 pins of lithium battery managing chip.
- A kind of 5. charge and discharge device of portable power source according to claim 1, it is characterised in that：The charge and discharge control electricity Road includes electric discharge metal-oxide-semiconductor and charging metal-oxide-semiconductor；The G poles of the electric discharge metal-oxide-semiconductor are connected by R34 with the DSG pins of lithium battery managing chip, the G poles of the charging metal-oxide-semiconductor It is connected by R35 with the CHG pins of lithium battery managing chip；The S poles of the electric discharge metal-oxide-semiconductor are extremely connected by R32 with the G of electric discharge metal-oxide-semiconductor, the S poles of the metal-oxide-semiconductor that charges by R33 and The G of electric discharge metal-oxide-semiconductor is extremely connected, and the D poles of the electric discharge metal-oxide-semiconductor are extremely connected with the D of charging metal-oxide-semiconductor, the S poles of the electric discharge metal-oxide-semiconductor The S that C27 and C28 are passed sequentially through with the metal-oxide-semiconductor that charges extremely is connected.
- A kind of 6. charge and discharge device of portable power source according to claim any one of 1-5, it is characterised in that：The lithium electricity Pond managing chip is SH366000AX chips.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720591639.0U CN206742921U (en) | 2017-05-24 | 2017-05-24 | A kind of charge and discharge device of portable power source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720591639.0U CN206742921U (en) | 2017-05-24 | 2017-05-24 | A kind of charge and discharge device of portable power source |
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| Publication Number | Publication Date |
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| CN206742921U true CN206742921U (en) | 2017-12-12 |
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| CN201720591639.0U Active CN206742921U (en) | 2017-05-24 | 2017-05-24 | A kind of charge and discharge device of portable power source |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109120037A (en) * | 2018-09-18 | 2019-01-01 | 深圳和而泰智能控制股份有限公司 | A kind of battery management method, circuit, battery pack and electric tool |
| CN110336357A (en) * | 2019-07-15 | 2019-10-15 | 浙江德创智能科技有限公司 | A kind of novel lithium battery protection board |
| CN111049228A (en) * | 2019-12-31 | 2020-04-21 | 杰之深(苏州)科技有限公司 | Integrated lithium battery charging and discharging management system of handheld dust collector |
| CN111146838A (en) * | 2019-12-31 | 2020-05-12 | 杰之深(苏州)科技有限公司 | Handheld dust collector battery discharge management system integrating over-current and over-temperature protection |
-
2017
- 2017-05-24 CN CN201720591639.0U patent/CN206742921U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109120037A (en) * | 2018-09-18 | 2019-01-01 | 深圳和而泰智能控制股份有限公司 | A kind of battery management method, circuit, battery pack and electric tool |
| CN110336357A (en) * | 2019-07-15 | 2019-10-15 | 浙江德创智能科技有限公司 | A kind of novel lithium battery protection board |
| CN111049228A (en) * | 2019-12-31 | 2020-04-21 | 杰之深(苏州)科技有限公司 | Integrated lithium battery charging and discharging management system of handheld dust collector |
| CN111146838A (en) * | 2019-12-31 | 2020-05-12 | 杰之深(苏州)科技有限公司 | Handheld dust collector battery discharge management system integrating over-current and over-temperature protection |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200605 Address after: 523000 Dongguan City, Guangdong Province, Songshan Lake Hi-tech Industrial Development Zone, No. 2 Industrial North Road, Huacan Telecom Workshop, 1st Floor 101 Patentee after: Dongguan Best New Energy Technology Co.,Ltd. Address before: 518000 Guangdong city of Shenzhen province Baoan District Fuyong street community baishixia Longwangmiao Industrial Zone sixty-sixth Patentee before: BESITER Co.,Ltd. |
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| TR01 | Transfer of patent right |