CN106487075A - A kind of serondary lithium battery charges and is unable to charge/discharge control circuit - Google Patents
A kind of serondary lithium battery charges and is unable to charge/discharge control circuit Download PDFInfo
- Publication number
- CN106487075A CN106487075A CN201611208206.9A CN201611208206A CN106487075A CN 106487075 A CN106487075 A CN 106487075A CN 201611208206 A CN201611208206 A CN 201611208206A CN 106487075 A CN106487075 A CN 106487075A
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- China
- Prior art keywords
- charger
- discharge
- charge
- battery
- control module
- 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.)
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Links
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 17
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 17
- 238000001514 detection method Methods 0.000 claims abstract description 20
- 230000003071 parasitic effect Effects 0.000 claims abstract description 7
- 230000005611 electricity Effects 0.000 claims description 10
- 238000005259 measurement Methods 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 8
- 238000013461 design Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000024241 parasitism Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 230000002618 waking effect 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
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0036—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using connection detecting circuits
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M10/4257—Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present invention relates to serondary lithium battery charging technique field，Specifically related to a kind of serondary lithium battery charges and is unable to charge/discharge control circuit，Including charger detection module C1、Discharge switch pipe drives K1、Control module M1 and switching tube drive K2，When battery bag does not connect charger and charges，Control module M1 signals to switch drive K2 elder generation closing switch pipe SW2，Control module M1 signals to discharge switch and drives K1，Open discharge switch pipe SW1，Battery B1 is to RL load discharge，Connect charger S1，Charger S1 and battery B1 is common positive pole，The parasitic diode that charger S1 passes through to close SW2 switching tube forms charge circuit，Continue battery is charged，Charger detection module C1 signals to control module M1，Control module M1 will drive K1 to close discharge switch pipe SW1 by discharge switch pipe；Realize charging it is impossible to RL load discharge.Present invention achieves the requirement that simple and reliable intelligent charging can not discharge, nor need to improve charger charging voltage.
Description
Technical field
The present invention relates to a kind of control of can not discharging and in particular to serondary lithium battery charges of serondary lithium battery charging technique field
Circuit processed.
Background technology
With scientific and technical development, the more and more ripe range of lithium battery technology is also increasingly wider, to secondary lithium electricity
Pond uses technical requirements also more and more higher, can not externally discharge, particularly electricity when requiring and charge when using in some special fields
Power driven tools field such as electric shear and some special field of vehicles such as electric wheel-chair vehicles and infant electric motor car etc..As
Really these cars do not control electric discharge when charging, and some potentiality risks will occur, or even cause some safety hazards.Mesh
Before, there is design in large-scale BMS management system, but BMS cost is very high；Or design only has one in the structure of product
Individual interface, but only one of which interface use when very inconvenient or using mechanical switch disconnect discharge loop, mechanical switch
High current use in, one, volume greatly unsightly；2nd, user forgets that closing mechanical switch also results in battery discharge, exists
Potential risk；It is also to determine whether that charger exists using detection electric current, using detection charging current is also to exist
Potential risk, when battery charge is less than current detecting threshold values, in the presence of not judging whether charger is gone back, just having can
Emergency risk can occur.Thus to design a low cost, high reliability, the scheme of the small volume need to solve such battery
When asking, and charging, with Intelligent Measurement to charger, and can not affect charger and battery is charged, that is, just connect charger
Charger can be detected and may turn off discharge control switch, pull out charger and will reopen discharge control switch, do not affect
The normal use of battery bag.
Content of the invention
(1) technical problem solving
For the deficiencies in the prior art, the invention provides a kind of serondary lithium battery charges is unable to charge/discharge control circuit, existing
The requirement that simple and reliable intelligent charging can not discharge, nor need to improve charger charging voltage.
(2) technical scheme
For realizing object above, the present invention is achieved by the following technical programs：
A kind of serondary lithium battery charges and is unable to charge/discharge control circuit, drives including charger detection module C1, discharge switch pipe
Dynamic K1, control module M1 and switching tube drive K2, and when battery does not connect charger and charges, control module M1 signals to switch
Drive K2 elder generation closing switch pipe SW2, control module M1 signals to discharge switch and drives K1, opens discharge switch pipe SW1, battery
B1, to RL load discharge, connects charger S1, charger S1 and battery B1 and is common positive pole, and charger S1 is opened by closing SW2
The parasitic diode closing pipe forms charge circuit, continues battery is charged, charger detection module C1 signals to control module
M1, control module M1 will drive K1 to close discharge switch pipe SW1 by discharge switch pipe；Realize charging it is impossible to load to RL
Electric discharge.
Preferably, when described control module M1 detects charger, signal to switch drive K2 and open SW2 switching tube,
Charger S1 charging current is through SW2 switching tube.
Preferably, when described charger S1 pulls out, and control module M1 signals to switch drive K1 closing switch pipe SW2
When, charger detection module C1 signals to control module MCU.
Preferably, described control module M1 judges that battery B1 does not charge, that is, signal to discharge switch pipe and drive K1, beat
Open electric switch pipe SW1, battery B1 continue RL power load modules are normally exported.
Preferably, when battery B1 charges, control module M1, with the detection charger S1 of certain frequency, judges charger S1
When pull out, stop battery B1 and charge, realize battery bag Intelligent Measurement charger, can not externally discharge during charging；Do not fill
Can normally export when electric.
(3) beneficial effect
A kind of serondary lithium battery charges and is unable to charge/discharge control circuit, drives including charger detection module C1, discharge switch pipe
Dynamic K1, control module M1 and switching tube drive K2, and when battery bag does not connect charger and charges, control module M1 signals to out
Close and drive K2 elder generation closing switch pipe SW2, control module M1 signals to discharge switch and drives K1, opens discharge switch pipe SW1, electricity
Pond B1, to RL load discharge, connects charger S1, charger S1 and battery B1 and is common positive pole, and charger S1 passes through to close SW2
The parasitic diode of switching tube forms charge circuit, continues battery is charged, charger detection module C1 signals to control mould
Block M1, control module M1 will drive K1 to close discharge switch pipe SW1 by discharge switch pipe；Realize charging it is impossible to bear to RL
Placing electricity.Present invention achieves the requirement that simple and reliable intelligent charging can not discharge, nor raising charger is needed to fill
Piezoelectric voltage.
Brief description
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
Have technology description in required use accompanying drawing be briefly described it should be apparent that, drawings in the following description be only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, acceptable
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the electric block diagram of the present invention；
Fig. 2 is the module connection diagram of the present invention；
Fig. 3 is the circuit connection diagram of the present invention；
Fig. 4 is the control flow chart of the present invention.
Specific embodiment
Purpose, technical scheme and advantage for making the embodiment of the present invention are clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described it is clear that described embodiment is
The a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment being obtained under the premise of not making creative work, broadly falls into the scope of protection of the invention.
A kind of serondary lithium battery charges and is unable to charge/discharge control circuit, drives including charger detection module C1, discharge switch pipe
Dynamic K1, control module M1 and switching tube drive K2, and when battery does not connect charger and charges, control module M1 will signal to
Switch drive K2 elder generation closing switch pipe SW2, now charger detection module C1 would not signal to control module M1, control mould
Block M1 will signal to discharge switch and drive K1, open discharge switch pipe SW1, and battery B1 just can normally be put to RL load
Electricity.If connecting S1 charger at this moment, because S1 charger and battery B1 are common positive poles, and S1 charger can pass through
The parasitic diode closing SW2 switching tube forms charge circuit, continues battery is charged.So charger detection module C1 will
Signal to control module M1, control module M1 will drive K1 to close discharge switch pipe SW1 by discharge switch pipe；Thus it is real
It is impossible to RL load discharge when now charging.When control module M1 detects charger simultaneously, also will signal to switch drive
K2 opens SW2 switching tube, and such S1 charger charging current runs past SW2 switching tube.And now SW2 switching tube is conducting,
S1 charger just can continue battery is charged, and does not have the pressure drop of SW2 switching tube parasitic diode it is not necessary to more
Change the output voltage of charger and also battery B1 can be filled full.If when S1 charger pulls out, and control module M1 is signaled
During to switch drive K1 closing switch pipe SW2, charger detection module C1 is not detected by S1 charger, charger detection module
C1 will signal to control module MCU, and control module M1 judges that battery B1 does not charge, and will signal to discharge switch pipe
K1 is driven to remove to open discharge switch pipe SW1, such battery B1 just can continue RL power load modules normally to be exported, in battery
When B1 charges, control module M1, is not had it is possible to know when S1 charger pulls out with the detection S1 charger of certain frequency
Have and charge to battery B1, thus can realize battery bag Intelligent Measurement charger, can not externally discharge during charging；When not charging
Can normally export.
The present invention specifically applies in electric-powered infant car battery, concrete connection figure such as Fig. 3 and flow chart Fig. 4, microcontroller
IC1-- adopts SONIX MCU SN8P2711B, optocoupler G1-- Taiwan light treasured LTV-217, and switching tube S1, S2 are using long electricity
SS8050, switching tube SW1, SW2 adopt IRFB3607, and C+, C- interface is charger interface, and P+, P- interface is loading interfaces.When
When charge port C+ and C- connect charger, charger C+/C- opens conducting by resistance R2 optocoupler G1, due to optocoupler G1 conducting
R1 will be pulled upward to VDD high level and be changed into low level generation level change, microcontroller IC1 P0.2 pin detects level
Change produces to be interrupted waking up microcontroller IC1.Microcontroller IC1 P5.3 pin exports low level, closes make and break by resistance R3
Close pipe S1, switching tube S1 closes, switching tube SW2 turns on, the high level of microcontroller IC1 P4.0 pin output simultaneously, Jing Guo electricity
Resistance R6 opens switching tube S2, and then switching tube SW1 is shut off for switching tube S2 conducting, realizes battery bag when charging, load is not put
Electricity；In closing switch pipe SW1, C+, C- interface is not turned on without charger, then optocoupler G1, microcontroller IC1 P0.2
Pin detects the high level being to pull up by resistance R1.Microcontroller IC1 is not detected by charger, microcontroller
IC1 p4.0 pin just exports low level, and by resistance R6 closing switch pipe S2, such switching tube SW1 will turn on, permissible
To load discharge, the high level of microcontroller IC1 P5.3 pin output simultaneously, switching tube S1, switching tube are opened by resistance R3
S1 turns on closing switch pipe SW1, and microcontroller IC1 reduces power consumption also into resting state.When having battery charger to charge, micro-
Controller IC 1 P5.3 pin passes through to adjust output high-low level time it is possible to reduce closing switch pipe SW2 with certain frequency
When.By switching tube SW2 parasitic diode, battery bag is charged and heating loss's energy, from raising charger charge efficiency.With
When can also by microcontroller IC1 P5.3 pin export high-low level time it is possible to reduce switching tube SW2 parasitism two poles
The requirement to charger output voltage for the tube voltage drop of pipe, thus be implemented without raising charger voltage battery bag is full of
Electricity, microcontroller IC1 particular flow sheet such as Fig. 4.Therefore present invention achieves simple and reliable intelligent charging can not discharge will
Ask, nor need to improve charger charging voltage.
It should be noted that herein, such as first and second or the like relational terms are used merely to a reality
Body or operation are made a distinction with another entity or operation, and not necessarily require or imply these entities or deposit between operating
In any this actual relation or order.And, term " inclusion ", "comprising" or its any other variant are intended to
Comprising of nonexcludability, wants so that including a series of process of key elements, method, article or equipment and not only including those
Element, but also include other key elements being not expressly set out, or also include for this process, method, article or equipment
Intrinsic key element.In the absence of more restrictions, the key element that limited by sentence "including a ..." it is not excluded that
Also there is other identical element including in the process of described key element, method, article or equipment.
Above example only in order to technical scheme to be described, is not intended to limit；Although with reference to the foregoing embodiments
The present invention has been described in detail, it will be understood by those within the art that：It still can be to aforementioned each enforcement
Technical scheme described in example is modified, or carries out equivalent to wherein some technical characteristics；And these modification or
Replace, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (5)
1. a kind of serondary lithium battery charge be unable to charge/discharge control circuit it is characterised in that：Including charger detection module C1, electric discharge
Switching tube drives K1, control module M1 and switching tube to drive K2, and when battery does not connect charger and charges, control module M1 transmits
Number to switch drive K2 elder generation closing switch pipe SW2, control module M1 signal to discharge switch drive K1, open discharge switch pipe
SW1, battery B1, to RL load discharge, connect charger S1, charger S1 and battery B1 and are common positive pole, and charger S1 passes through to close
The parasitic diode closing SW2 switching tube forms charge circuit, continues battery is charged, charger detection module C1 signals to control
Molding block M1, control module M1 will drive K1 to close discharge switch pipe SW1 by discharge switch pipe；Realize charging it is impossible to right
RL load discharge.
2. serondary lithium battery according to claim 1 charge be unable to charge/discharge control circuit it is characterised in that：Described control mould
When block M1 detects charger, signal to switch drive K2 and open SW2 switching tube, charger S1 charging current is opened through SW2
Guan Guan.
3. serondary lithium battery according to claim 2 charge be unable to charge/discharge control circuit it is characterised in that：Described charger
When S1 pulls out, and when control module M1 signals to switch drive K1 closing switch pipe SW2, charger detection module C1 signals
To control module MCU.
4. serondary lithium battery according to claim 1 charge be unable to charge/discharge control circuit it is characterised in that：Described control mould
Block M1 judges that battery B1 does not charge, that is, signal to discharge switch pipe and drive K1, open discharge switch pipe SW1, battery B1 continues
Continue and RL power load modules are normally exported.
5. serondary lithium battery according to claim 4 charge be unable to charge/discharge control circuit it is characterised in that：Fill in battery B1
When electric, control module M1, with the detection charger S1 of certain frequency, judges when charger S1 pulls out, and stops battery B1 and fills
Electricity, realizes battery bag Intelligent Measurement charger, can not externally discharge during charging；Can normally export when not charging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611208206.9A CN106487075A (en) | 2016-12-23 | 2016-12-23 | A kind of serondary lithium battery charges and is unable to charge/discharge control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611208206.9A CN106487075A (en) | 2016-12-23 | 2016-12-23 | A kind of serondary lithium battery charges and is unable to charge/discharge control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106487075A true CN106487075A (en) | 2017-03-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611208206.9A Pending CN106487075A (en) | 2016-12-23 | 2016-12-23 | A kind of serondary lithium battery charges and is unable to charge/discharge control circuit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108461834A (en) * | 2018-02-12 | 2018-08-28 | 维沃移动通信有限公司 | A kind of battery pack structure, mobile terminal and charge/discharge control method |
| CN108832678A (en) * | 2018-06-20 | 2018-11-16 | 重庆明斯克电气有限公司 | Intelligent power distribution management system for electric automobile charging pile |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005130663A (en) * | 2003-10-27 | 2005-05-19 | Sony Corp | Battery pack |
| CN201113407Y (en) * | 2007-09-06 | 2008-09-10 | 江苏苏美达五金工具有限公司 | Lithium ion batteries protector |
| CN105629709A (en) * | 2016-03-18 | 2016-06-01 | 广东小天才科技有限公司 | Intelligent watch |
-
2016
- 2016-12-23 CN CN201611208206.9A patent/CN106487075A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005130663A (en) * | 2003-10-27 | 2005-05-19 | Sony Corp | Battery pack |
| CN201113407Y (en) * | 2007-09-06 | 2008-09-10 | 江苏苏美达五金工具有限公司 | Lithium ion batteries protector |
| CN105629709A (en) * | 2016-03-18 | 2016-06-01 | 广东小天才科技有限公司 | Intelligent watch |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108461834A (en) * | 2018-02-12 | 2018-08-28 | 维沃移动通信有限公司 | A kind of battery pack structure, mobile terminal and charge/discharge control method |
| CN108832678A (en) * | 2018-06-20 | 2018-11-16 | 重庆明斯克电气有限公司 | Intelligent power distribution management system for electric automobile charging pile |
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| C06 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170308 |
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