CN110380470A - Multiple batteries charge protector and cell apparatus - Google Patents
Multiple batteries charge protector and cell apparatus Download PDFInfo
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- CN110380470A CN110380470A CN201910588176.6A CN201910588176A CN110380470A CN 110380470 A CN110380470 A CN 110380470A CN 201910588176 A CN201910588176 A CN 201910588176A CN 110380470 A CN110380470 A CN 110380470A
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- 230000001012 protector Effects 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 abstract description 5
- 230000007246 mechanism Effects 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 4
- 239000003990 capacitor Substances 0.000 description 6
- 230000005611 electricity Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 230000006872 improvement Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000006870 function Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000009993 protective function Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
- H02J7/0014—Circuits for equalisation of charge between batteries
-
- H02J7/0026—
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00302—Overcharge protection
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00304—Overcurrent protection
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00306—Overdischarge protection
-
- 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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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses the cell apparatus of a kind of multiple batteries charge protector and the application charge protector; charge protector includes the first protection location and the second protection location; first protection location is configured as filling the on-off of cathode interface according to battery anode interface, the control of Electric potentials battery electrode interface of battery electrode interface and each connection point interface and balance, and second protection location is configured as the on-off of control of Electric potentials connection point interface and corresponding node interface according to battery anode interface and each connection point interface.The first protection location and the second protection location that the invention passes through setting; for be serially connected in battery anode interface and tie point connect between, battery provides protection mechanism between each connection point interface and between connection point interface and battery electrode interface; the safety in battery pack charging process is greatly increased, to improve the efficiency for charge-discharge and service life of battery pack.
Description
Technical field
The present invention relates to electronic circuit technology field, more specifically to a kind of multiple batteries charge protector and
Using the cell apparatus of the protection circuit.
Background technique
It is known that the voltage that can be provided of single batteries is very limited in actual life, therefore our daily lifes
Seen in battery power supply class product be generally to be powered using the series connection of two or more batteries.
As the technology of rechargeable battery develops, the manufacturing enterprise of presently relevant battery power supply class product will be chargeable
Battery applications are on its product produced, since concatenated multiple inside battery characteristics have a certain difference, in charging
It is easy to increase the lack of uniformity between each battery in the process, so as to cause use effect and service life of battery pack entirety
It reduces.And in the prior art in order to solve the above technical problems, those skilled in the art generally use balance charger to battery
Group carries out charging operations, while being supplying cell group one charge protector of configuration, but charge protection in the prior art
It is still lacking in circuit structure design, causes existing charge protector that can not play optimal protection effect to battery pack
Fruit.
Summary of the invention
The technical problem to be solved by the present invention is providing a kind of multiple batteries charge protector and applying the charger
The cell apparatus of protection circuit.
The solution that the present invention solves its technical problem is:
Batteries charge protector, it is negative that the charge protector is externally provided with battery anode interface, battery pack
Pole interface, connection point interface, balance fill anode interface, balance fills cathode interface and node interface, the connection point interface
Quantity is consistent with the quantity of node interface, and the connection point interface and node interface correspond, the charge protector packet
The first protection location and the second protection location are included, first protection location is configured as according to battery anode interface, electricity
The control of Electric potentials battery electrode interface and balance of pond group cathode interface and each connection point interface fill the on-off of cathode interface,
Second protection location is configured as the control of Electric potentials tie point according to battery anode interface and each connection point interface
The on-off of interface and corresponding node interface；The battery anode interface and balance are filled anode interface and are electrically connected, and described first
Protection location fills cathode interface with battery anode interface, battery electrode interface, each connection point interface and balance respectively
Be connected, second protection location respectively with battery anode interface, each connection point interface and each node interface phase
Connection.
As a further improvement of the above technical scheme, first protection location includes the first protection chip, switching tube
Q1 and switching tube Q2, the battery anode interface, battery electrode interface and each connection point interface are respectively with first
Protect chip each voltage input end be connected, it is described first protection chip discharge control terminal and charge control end respectively with
The grid of switching tube Q1 and the grid of switching tube Q2 are connected, the drain electrode of the switching tube Q1 and the drain electrode phase of switching tube Q2
Even, the source electrode of the switching tube Q1 is connected with battery electrode interface, and the source electrode and balance of the switching tube Q2 fills cathode interface
It is connected, the balance fills cathode interface and is connected with the current detecting end of the first protection chip.
As a further improvement of the above technical scheme, the model of the switching tube Q1 and the model of switching tube Q2 are
PSMN1R5-30YLC。
As a further improvement of the above technical scheme, second protection location includes several the second protection chips,
The second protection chip has been internally integrated switching tube, the quantity of the second protection chip with connect point interface, node connects
The quantity of mouth is consistent, the voltage that the battery anode interface and each connection point interface protect chip with each second respectively
Input terminal is connected, and the charging end of each second protection chip is connected with each node interface respectively.
Another technical solution of multiple batteries charge protector described in the invention, is externally provided with battery anode
Interface, battery electrode interface, connection point interface, balance fill anode interface, balance fills cathode interface and node interface, described
The quantity for connecting point interface is consistent with the quantity of node interface, and the connection point interface and node interface correspond, described to fill
Electric protection circuit includes the first protection location and the second protection location, and first protection location is configured as according to battery pack
Anode interface, the control of Electric potentials battery electrode interface of battery electrode interface and each connection point interface and balance fill cathode
The on-off of interface, second protection location are configured as the current potential according to battery anode interface and each connection point interface
The on-off of control connection point interface and corresponding node interface；The battery anode interface fills anode interface with balance and electrically connects
Connect, first protection location respectively with battery anode interface, battery electrode interface, each connection point interface and balance
Cathode interface is filled to be connected, second protection location respectively with battery anode interface, each connection point interface and each
Node interface is connected；First protection location includes two or more thirds protection chip, switching tube Q3 and opens
Pipe Q4 is closed, each third protection chip is successively successively cascaded, the battery anode interface, battery electrode interface
And each connection point interface is connected with the voltage input end of each third protection chip respectively, the third positioned at end protects core
The discharge control terminal of piece and charge control end are connected with the grid of the grid of switching tube Q3 and switching tube Q4 respectively, described to open
The drain electrode of the drain electrode and switching tube Q4 of closing pipe Q3 is connected, and the source electrode of the switching tube Q3 is connected with battery electrode interface, institute
It states the source electrode of switching tube Q4 and balance fills cathode interface and is connected, the balance fills cathode interface and the third protection core for being located at end
The current detecting end of piece is connected.
As a further improvement of the above technical scheme, the model of the switching tube Q3 and the model of switching tube Q4 are
PSMN1R5-30YLC。
As a further improvement of the above technical scheme, second protection location includes several the second protection chips,
The second protection chip has been internally integrated switching tube, the quantity of the second protection chip with connect point interface, node connects
The quantity of mouth is consistent, the voltage that the battery anode interface and each connection point interface protect chip with each second respectively
Input terminal is connected, and the charging end of each second protection chip is connected with each node interface respectively.
The invention also discloses a kind of a cell apparatus simultaneously, charges including multiple batteries described in any of the above item
Circuit and multiple batteries are protected, multiple batteries are separately positioned on battery anode interface and connect between point interface, phase
Between adjacent two connection point interfaces and between connection point interface and battery electrode interface.
The beneficial effects of the present invention are: first protection location and second protection location of the invention by setting,
For be serially connected in battery anode interface and tie point connect between, between each connection point interface and connection point interface and battery
Battery provides protection mechanism between group cathode interface, the safety in battery pack charging process is greatly increased, to improve
The efficiency for charge-discharge and service life of battery pack.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described.Obviously, described attached drawing is a part of the embodiments of the present invention, rather than is all implemented
Example, those skilled in the art without creative efforts, can also be obtained according to these attached drawings other designs
Scheme and attached drawing.
Fig. 1 is the circuit frame figure of the invention charge protector；
Fig. 2 is the first embodiment circuit diagram of the invention charge protector；
Fig. 3 is the second embodiment circuit diagram of the invention charge protector.
Specific embodiment
It is carried out below with reference to technical effect of the embodiment and attached drawing to design of the invention, specific structure and generation clear
Chu, complete description, to be completely understood by the purpose of the present invention, feature and effect.Obviously, described embodiment is this Shen
A part of the embodiment please, rather than whole embodiments, are based on embodiments herein, and those skilled in the art is not paying
Other embodiments obtained under the premise of creative work belong to the range of the application protection.In addition, be previously mentioned in text
All connection relationships not singly refer to that component directly connects, and referring to can be according to specific implementation situation, by adding or reducing connection
Auxiliary, Lai Zucheng more preferably connection structure.Each technical characteristic in the invention, under the premise of not conflicting conflict
It can be with combination of interactions.Finally, it should be noted that such as term in text " center, upper and lower, left and right, vertical, horizontal, inside and outside "
The orientation or positional relationship of instruction is then to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description this technology side
Case and simplified description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific orientation
Construction and operation, therefore should not be understood as the limitation to the application.
Referring to Fig.1~Fig. 2, this application discloses a kind of multiple batteries charge protectors, and first embodiment is to peripheral hardware
The battery anode interface set, battery electrode interface, connection point interface, balance fill anode interface, balance fill cathode interface with
And node interface, the quantity of the connection point interface is consistent with the quantity of node interface, the connection point interface and node interface
It corresponds, the charge protector includes the first protection location and the second protection location, the first protection location quilt
It is configured to the control of Electric potentials battery electrode according to battery anode interface, battery electrode interface and each connection point interface
Interface and balance fill the on-off of cathode interface, and second protection location is configured as according to battery anode interface and each
Connect the on-off of control of Electric potentials the connection point interface and corresponding node interface of point interface；The battery anode interface is filled with balance
Anode interface be electrically connected, first protection location respectively with battery anode interface, battery electrode interface, each connection
Point interface and balance fill cathode interface and are connected, second protection location respectively with battery anode interface, each connection
Point interface and each node interface are connected.The protection mechanism of the present embodiment is as follows: equilibrium charging technology in the prior art
Be divided into it is individually balanced fill and concatenate balance fill, the present embodiment be suitable for concatenation balance fills, concatenation balance fills in technology, equilibrium charging
Device can charge to different batteries according to the charge condition of each battery, if in actual application, balance charger
Battery detecting function go wrong, be easy to cause balance charger that can only constantly charge so that battery occur
Overcharge damages battery.In the present embodiment, first protection location is mainly responsible for being located at end electricity in battery pack
The discharge prevention of the charge protection in pond and entire battery pack, and the second protection location is mainly responsible in battery pack in addition to end
The charging protection function of each battery other than battery, the present embodiment are single by the first protection location of setting and the second protection
Member, for be serially connected in battery anode interface and tie point connect between, between each connection point interface and connection point interface and electricity
Battery provides protection mechanism between the group cathode interface of pond, the safety in battery pack charging process is greatly increased, to mention
The efficiency for charge-discharge and service life of high battery pack.
It is further used as preferred embodiment, in the present embodiment, first protection location includes one first protection
Chip, if required battery pack to be protected only there are two battery, the first protection chip may be selected model HY2120,
R5460X etc., if required battery pack to be protected, there are two above battery, model may be selected in the first protection chip
S-8204A, UCC3957 etc..Referring to Fig. 2, the present embodiment is using the charge and discharge protective chip of model HY2120 as described first
Protection chip is explained.The first protection chip includes the first protection chip, resistance R1, resistance of model HY2120
R2, resistance R3, capacitor C1, capacitor C2, switching tube Q1 and switching tube Q2, the battery anode interface pass through resistance R1 and the
The first voltage input terminal (vdd terminal) of one protection chip is connected, and the connection point interface passes through the protection chip of resistance R2 and first
Second voltage input terminal (end VC) be connected, the battery electrode interface with first protect chip tertiary voltage input terminal
(end VSS) is connected, the first voltage input terminal (vdd terminal) and third that chip is protected with first respectively in the both ends of the capacitor C1
Voltage input end (end VSS) is connected, the second voltage input terminal (VC that chip is protected with first respectively in the both ends of the capacitor C2
End) and tertiary voltage input terminal (end VSS) be connected, it is described first protection chip discharge control terminal (end OD) and charging control
End (end OC) processed is connected with the grid of the grid of switching tube Q1 and switching tube Q2 respectively, the drain electrode of the switching tube Q1 and opens
Close pipe Q2 drain electrode be connected, the source electrode of the switching tube Q1 is connected with battery electrode interface, the source electrode of the switching tube Q2 and
Balance fills cathode interface and is connected, and the balance fills cathode interface and passes through the current detecting end phase of resistance R3 and the first protection chip
Even.Wherein the first protection chip of the model is a built-in high-accuracy voltage detection circuit and delay circuit, is used for two sections
Cascaded lithium ion/lighium polymer rechargeable battery protection chip is configured with additives for overcharge protection, over and mistake
Current protection.The first protection chip passes through three node potentials (i.e. battery anode interfaces, battery in detection battery pack
Group cathode interface and the circuit for connecting three positions of point interface) judge whether battery pack the phenomenon that overcharge occurs, to control
The on-off of switching tube Q1 and switching tube Q2 processed control the charge circuit of battery pack and balance charger.
It is further used as preferred embodiment, in the present embodiment, the model of the switching tube Q1 and switching tube Q2's
Model is PSMN1R5-30YLC, and the switching tube of the model is N-channel type field-effect tube, the switching tube on-state of the model
Resistance is lower, and when work, brought loss was extremely low.
It is further used as preferred embodiment, in the present embodiment, second protection location is mainly used for realizing electricity
The charge protection of the every batteries of Chi Zuzhong (battery in addition to being located at end is responsible for protection by the first protection location), therefore described the
Two protection locations include several the second protection chips, and the second protection chip is single battery charge protection chip, in addition
The second protection chip of switching tube is preferably internally integrated in the present embodiment, such as N811, of coursing also can choose inside and do not have
Second protection chip of integrated switch pipe, such as DW01.Using model N811 as the second protection chip in the present embodiment, for two
The application situation of batteries is explained.Second protection location described in the present embodiment includes the second protection core of model N811
Piece, resistance R4, resistance R5 and capacitor C3, the first electricity that the battery anode interface passes through the protection chip of resistance R4 and second
Input terminal (vdd terminal) is pressed to be connected, the first voltage input terminal (vdd terminal) that chip is protected with second respectively in the both ends of the capacitor C3
And second voltage input terminal (end GND) is connected, two voltage input ends (end GND) of the second protection chip connect with tie point
Mouth is connected, the current detecting end (end VM) and charging end (end P-) phase that chip is protected with second respectively in the both ends of the resistance R5
Even, the charging end (end P-) of the second protection chip is connected with node interface.Specifically, of model described in the present embodiment
Two protection chips are a single battery protection chips, same to collect overvoltage charge protection and excess current protective function, institute
The inside of the second protection chip is stated configured with switching tube, effectively simplifies its peripheral circuit.
Referring to Fig. 3, the second embodiment of charge protector described herein is distinguished compared with first embodiment
Be, first protection location configured with it is two or more, between each other can cascade battery charging and discharging protect chip, by
It is limited in the number of batteries that single battery charge and discharge protective chip is protected, therefore compared with first embodiment, second embodiment
It can be realized the defencive function of more batteries.Chip is protected to be explained using model S-8204A as third in the present embodiment.
First protection location described in the present embodiment includes two or more, and the third protection chip of model S-8204A switchs
Pipe Q3 and switching tube Q4, each third protection chip are successively successively cascaded, the battery anode interface, battery
Group cathode interface and each connection point interface protect voltage input end (VDD, VC1, VC2) phase of chip with each third respectively
Even, positioned at end third protection chip discharge control terminal and charge control end respectively with the grid of switching tube Q3 and open
The grid for closing pipe Q4 is connected, and the drain electrode of the switching tube Q3 and the drain electrode of switching tube Q4 are connected, the source electrode of the switching tube Q3
It is connected with battery electrode interface, the source electrode of the switching tube Q4 fills cathode interface with balance and is connected, and the balance is filled cathode and connect
Mouth is connected with the current detecting end for the third protection chip for being located at end.
In addition, from Fig. 3 it can also be seen that when battery pack includes more than two batteries, second protection location
Each second protection chip is how to be connected with battery anode interface, each connection point interface and each node interface
's.
The application also discloses a kind of cell apparatus simultaneously, and multiple batteries described in first embodiment any of the above item fill
Electric protection circuit and multiple batteries, multiple batteries be separately positioned on battery anode interface and connection point interface between,
Between two neighboring connection point interface and between connection point interface and battery electrode interface.In addition, in order to save cost,
Between battery anode interface described in the present embodiment and connection point interface, between two neighboring connection point interface and connect
Can be set more than one series-connected cell group between point interface and battery electrode interface, second protection location need with
Between battery anode interface and connection point interface, multiple batteries set between two neighboring connection point interface to dispatch from foreign news agency
Current voltage parameter is protected, can be big although the second protection location can not carry out independent protection to each battery
The earth reduces the complexity of circuit, while can also reduce production cost.
The better embodiment of the application is illustrated above, but the application is not limited to the specific embodiments,
Those skilled in the art can also make various equivalent modifications or replacement on the premise of without prejudice to spirit of the invention, this
Equivalent variation or replacement are all included in the scope defined by the claims of the present application a bit.
Claims (8)
1. multiple batteries charge protector, it is characterised in that: the charge protector is externally provided with battery anode and connects
Mouth, battery electrode interface, connection point interface, balance fill anode interface, balance fills cathode interface and node interface, the company
The quantity of contact interface and the quantity of node interface are consistent, and the connection point interface and node interface correspond, the charging
Protecting circuit includes the first protection location and the second protection location, and first protection location is configured as according to battery pack just
Pole interface, the control of Electric potentials battery electrode interface of battery electrode interface and each connection point interface and balance are filled cathode and are connect
The on-off of mouth, second protection location are configured as the current potential control according to battery anode interface and each connection point interface
The on-off of system connection point interface and corresponding node interface；The battery anode interface and balance fill anode interface electric connection,
First protection location is filled with battery anode interface, battery electrode interface, each connection point interface and balance respectively
Cathode interface is connected, second protection location respectively with battery anode interface, each connection point interface and each section
Point interface is connected.
2. multiple batteries charge protector according to claim 1, it is characterised in that: first protection location includes
First protection chip, switching tube Q1 and switching tube Q2, the battery anode interface, battery electrode interface and each company
Contact interface respectively with first protection chip each voltage input end be connected, it is described first protect chip discharge control terminal with
And charge control end is connected with the grid of the grid of switching tube Q1 and switching tube Q2 respectively, the drain electrode of the switching tube Q1 and
The drain electrode of switching tube Q2 is connected, and the source electrode of the switching tube Q1 is connected with battery electrode interface, the source electrode of the switching tube Q2
It fills cathode interface with balance to be connected, the balance fills cathode interface and is connected with the current detecting end of the first protection chip.
3. multiple batteries charge protector according to claim 2, it is characterised in that: the model of the switching tube Q1 with
And the model of switching tube Q2 is PSMN1R5-30YLC.
4. multiple batteries charge protector according to claim 3, it is characterised in that: second protection location includes
Several the second protection chips, the second protection chip have been internally integrated switching tube, the quantity of the second protection chip
Consistent with connection point interface, the quantity of node interface, the battery anode interface and each connection point interface are respectively and respectively
It is a second protection chip voltage input end be connected, it is each it is described second protection chip charging end respectively with each node interface
It is connected.
5. multiple batteries charge protector according to claim 1, it is characterised in that: first protection location includes
Two or more thirds protect chip, switching tube Q3 and switching tube Q4, each third protection chip successively successive
It is cascaded, the battery anode interface, battery electrode interface and each connection point interface are protected with each third respectively
Protect chip voltage input end be connected, positioned at end third protection chip discharge control terminal and charge control end respectively with
The grid of switching tube Q3 and the grid of switching tube Q4 are connected, the drain electrode of the switching tube Q3 and the drain electrode phase of switching tube Q4
Even, the source electrode of the switching tube Q3 is connected with battery electrode interface, and the source electrode and balance of the switching tube Q4 fills cathode interface
It is connected, the balance fills cathode interface and is connected with the current detecting end for the third protection chip for being located at end.
6. multiple batteries charge protector according to claim 5, it is characterised in that: the model of the switching tube Q3 with
And the model of switching tube Q4 is PSMN1R5-30YLC.
7. multiple batteries charge protector according to claim 6, it is characterised in that: second protection location includes
Several the second protection chips, the second protection chip have been internally integrated switching tube, the quantity of the second protection chip
Consistent with connection point interface, the quantity of node interface, the battery anode interface and each connection point interface are respectively and respectively
It is a second protection chip voltage input end be connected, it is each it is described second protection chip charging end respectively with each node interface
It is connected.
8. a kind of cell apparatus, it is characterised in that: filled including claim 1 to the described in any item multiple batteries of claim 7
Electric protection circuit and multiple batteries, multiple batteries be separately positioned on battery anode interface and connection point interface between,
Between two neighboring connection point interface and between connection point interface and battery electrode interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910588176.6A CN110380470A (en) | 2019-07-02 | 2019-07-02 | Multiple batteries charge protector and cell apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910588176.6A CN110380470A (en) | 2019-07-02 | 2019-07-02 | Multiple batteries charge protector and cell apparatus |
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| Publication Number | Publication Date |
|---|---|
| CN110380470A true CN110380470A (en) | 2019-10-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910588176.6A Pending CN110380470A (en) | 2019-07-02 | 2019-07-02 | Multiple batteries charge protector and cell apparatus |
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| CN (1) | CN110380470A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110854953A (en) * | 2019-11-20 | 2020-02-28 | 佛山市实达科技有限公司 | Battery charging and discharging protection circuit and battery device |
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| CN103490451A (en) * | 2012-06-11 | 2014-01-01 | 登丰微电子股份有限公司 | Battery voltage balancing circuit |
| CN210183036U (en) * | 2019-07-02 | 2020-03-24 | 佛山市实达科技有限公司 | Multi-battery charging protection circuit and battery device |
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2019
- 2019-07-02 CN CN201910588176.6A patent/CN110380470A/en active Pending
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|---|---|---|---|---|
| CN201393058Y (en) * | 2009-02-13 | 2010-01-27 | 上海长园维安电子线路保护股份有限公司 | Charge-discharge equalizing protection module of rechargeable battery pack |
| CN103490451A (en) * | 2012-06-11 | 2014-01-01 | 登丰微电子股份有限公司 | Battery voltage balancing circuit |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110854953A (en) * | 2019-11-20 | 2020-02-28 | 佛山市实达科技有限公司 | Battery charging and discharging protection circuit and battery device |
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