CN205882798U - Battery charging circuit with charge accomplish after automatic disconnection function - Google Patents
Battery charging circuit with charge accomplish after automatic disconnection function Download PDFInfo
- Publication number
- CN205882798U CN205882798U CN201620908837.0U CN201620908837U CN205882798U CN 205882798 U CN205882798 U CN 205882798U CN 201620908837 U CN201620908837 U CN 201620908837U CN 205882798 U CN205882798 U CN 205882798U
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- battery
- comparator
- charging
- relay
- outfan
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- 238000001514 detection method Methods 0.000 claims abstract description 11
- 238000004020 luminiscence type Methods 0.000 claims 1
- 230000005611 electricity Effects 0.000 abstract description 8
- 238000012544 monitoring process Methods 0.000 description 4
- 238000007689 inspection Methods 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model provides a battery charging circuit with charge accomplish after automatic disconnection function, including battery, relay group and battery charging unit, the circuit still includes and is used for instructing charging state of battery's charge indication unit and for in the battery is full of the back disconnection the detection disconnection unit of relay group, wherein, the charge indication unit respectively with battery charging unit and the battery electricity is connected, detect the disconnection unit respectively with the relay group and the battery charging unit electricity is connected. Utilize first comparator just to realize that circuit structure is simple to charging state of battery's control, the cooperation of second comparator and relay group is used, has realized when charging in real time the control to the charge condition, in case be full of the circuit that charges with regard to automatic disconnection, has prevented overcharging of battery, and the protection battery lengthens the life of battery.
Description
Technical field
This utility model relates to field of batteries, the battery charged electrical of automatic break function after particularly relating to have charging complete
Road.
Background technology
Along with the fast development of electronics and information industry, modern electronic product especially portable type electronic product such as mobile phone, flat
Plate computer, digital camera etc. more and more occur commercially, and this electronic product needs when there is circuit deficiency to carry out
Charging.In charging process, due to the impossible real time inspection charge condition of user, so very likely causing long-time charging.
The most easy to charge causing overcharges, and the most dangerous service life also affecting battery, to charger and phase
The electronic product closed also result in injury.If additionally, the state of display charging that can not be real-time, being unfavorable for that user is to charging
Checking of situation.Therefore, a kind of charged state the charging circuit that can automatically power off can be shown in real time.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of battery of automatic break function after having charging complete
Charging circuit, to prevent from overcharging and protect battery and charger.
The technical solution of the utility model is: the battery charger of automatic break function after having charging complete, including
Battery, being all connected with described battery and interconnective relay group and battery charging unit, described circuit also includes indicating
The charging indicating member of described battery charging state and be used to disconnect the detection of described relay group after described battery is full of
Switching units；
Wherein, described charging indicating member electrically connects with described battery charging unit and described battery respectively, described inspection
Survey switching units to electrically connect with described relay group and described battery charging unit respectively.
It is also preferred that the left described relay group includes the first relay and the second relay, described battery and the charging of described battery
Being in series with the first resistance and described first relay between unit, described charging indicating member includes and described first resistor coupled in parallel
The first comparator and the light emitting diode connected with described first comparator, the in-phase input end of described first comparator with
The outfan electrical connection of described battery charging unit, reverse input end electrically connects with the outfan of described battery.
One first audion it is also preferred that the left also connect between described first comparator and described light emitting diode, described first
The base stage of audion electrically connects with described first comparator output terminal, grounded emitter, colelctor electrode and described light emitting diode electricity
Connect.
It is also preferred that the left described detection switching units includes the second comparator and second audion of series connection, described second compares
The in-phase input end of device accesses the outfan of described first comparator, reverse input end ground connection, and outfan accesses the described 2nd 3
The base stage of pole pipe, the colelctor electrode of described second audion is sequentially connected in series described second relay and described battery charging unit,
Grounded emitter.
One first diode it is also preferred that the left also connect between described second comparator and described second audion, described first
The positive pole of diode electrically connects with the outfan of described second comparator.
It is also preferred that the left described second relay also with one second diodes in parallel.
One the 3rd diode it is also preferred that the left also connect between described first resistance and described first relay, the described 3rd 2
The positive pole of pole pipe electrically connects with described first resistance.
Technique scheme has the advantage that or beneficial effect: is achieved that merely with the first comparator and charges battery
The monitoring of state, circuit structure is simple；Second comparator and relay group with the use of, it is achieved that when charging in real time to filling
The monitoring of electricity situation, disconnects charging circuit the most automatically once be full of, it is therefore prevented that the overcharge of battery, and protection battery also extends battery
Service life, whole circuit structure is simple, and circuit cost is low；The use of the 3rd diode, goes out when preventing cell voltage excessive
The problem of existing electric current adverse current.
Accompanying drawing explanation
With reference to appended accompanying drawing, more fully to describe embodiment of the present utility model.But, appended accompanying drawing is only used for
Bright and illustrate, be not intended that the restriction to this utility model scope.
Fig. 1 is the structural representation of the battery charger of automatic break function after this utility model has charging complete；
Fig. 2 is the circuit diagram of the battery charger of automatic break function after this utility model has charging complete；
In accompanying drawing: M1, battery；M2, relay group；M3, battery charging unit；M4, charging indicating member；M5, detection are broken
Open unit；JK1, the first relay；JK2, the second relay；R1, the first resistance；U1, the first comparator；U2, the second comparator；
LED, light emitting diode；Q1, the first audion；Q2, the second audion；D1, the first diode；D2, the second diode；D3,
Three diodes.
Detailed description of the invention
With specific embodiment this utility model had the battery of break function automatically after charging complete below in conjunction with the accompanying drawings
M1 charging circuit is described in detail.
The battery charger of automatic break function after there is charging complete, including:
Battery M1；
Relay group M2；
Battery charging unit M3, is arranged between battery M1 and relay group M2, in order to charge to battery M1；
Charging indicating member M4, electrically connects with battery charging unit M3 and battery M1, respectively in order to indicate battery M1's
Charged state；
Detection switching units M5, respectively with battery charging unit M3 and the electrical connection of relay group M2, is used to battery
M1 disconnects relay group M2 after being full of.
Specifically, set forth above there is charging complete after break function automatically battery M1 charging circuit in, electricity
Pond charhing unit M3 charges to battery M1, and charging indicating member M4 shows accordingly according to the charged state of battery M1, inspection
Survey switching units M5 and monitor the charged state of battery M1 in real time, and after battery M1 is full of, disconnects relay group M2, i.e. disconnect electricity
The circuit that pond charhing unit M3 powers to battery M1.
From the point of view of further, between battery M1 and battery charging unit M3, it is in series with a resistance R1 (the first resistance) and relay
Device JK1 (the first relay), charging indicating member M4 include a comparator U1 (the first comparator), compare the in-phase input end of U1
In parallel with resistance R1 with the two ends that inverting input is respectively connected to resistance R1, i.e. comparator U1.Specifically, battery charging unit
The outfan of M3 is connected to the in-phase input end of comparator U1, and the outfan of battery M1 is connected to the anti-phase input of comparator U1
End.Additionally, charging indicating member M4 also includes audion Q1 (the first audion) and the LED of a series connection, Q1's
Base stage is connected to the outfan of U1, grounded emitter, and colelctor electrode electrically connects with LED.During work, if battery M1
It is in charged state, then the in-phase input end voltage of comparator U1 is more than the voltage of inverting input, the most now comparator U1
Output high level, audion Q1 turns on, and LED is lit；If battery M1 is in fully charged state, then comparator U1's is same
Township's input univoltage equal to the voltage of reverse input end, the most now comparator U1 output low level, the most now audion Q1 not by
Conducting, LED is in long state of going out.In the circuit, it is achieved that the monitoring to battery M1 charged state merely with comparator U1,
Circuit structure is simple.
From the point of view of further, detection switching units M5 includes a comparator U2 (the second comparator), and the homophase of comparator U2 is defeated
Entering the outfan terminated into comparator U1, reverse input end ground connection, the outfan at comparator U2 accesses a diode D1 (first
Diode), i.e. the outfan of comparator U2 is connected with the positive electrical of diode D1.Detection switching units M5 also includes an audion
Q2 (the second audion), the base stage of audion Q2 is connected to the negative pole of diode D1, grounded emitter, colelctor electrode and relay
The input of JK2 connects.It is worthy of note, relay J K1 and JK2 constitute above-mentioned relay group M2, i.e. relay J K1 and
The input of JK2 is connection, and relay J K1 and JK2 are closed at or disconnect.During work, when battery M1 is in charged state
Time comparator U1 export high level, then comparator U2 export high level, D1, Q2 turn on, relay J K2, JK1 close；Work as battery
Comparator U1 output low level when M1 is in full state, comparator U2 output low level, D1 ends, and Q2 is not turned on, relay
JK2, JK1 close.In the circuit, comparator U2 and relay group M2 with the use of, it is achieved that when charging in real time to filling
The monitoring of electricity situation, disconnects charging circuit the most automatically once be full of, it is therefore prevented that the overcharge of battery M1, and protection battery M1 also extends
The service life of battery M1.Meanwhile, whole circuit structure is simple, and circuit cost is low.
Below integrated circuit structure is described in detail:
In charging indicating member M4, resistance R11 and R12 that the outfan of battery charging unit M3 is concatenated accesses and compares
The in-phase input end of device U1, resistance R13 and R14 that the outfan of battery M1 is concatenated is connected to the anti-phase input of comparator U1
End, is also connected with an electric capacity C1 between resistance R13 and resistance R14.Additionally, resistance R13 and R14 is also with the electric capacity C2 of a ground connection also
Connection.The outfan of comparator U1 is sequentially connected with a resistance R15 and the base stage of audion Q1, i.e. comparator U1 Yu R15, Q1 string
Connection.Connect between the base stage and emitter stage of Q1 a resistance R16, the light-emitting diodes of the colelctor electrode series connection one access fixed voltage of Q1
Pipe LED, LED also connect a resistance R17.
In detection switching units M5, the outfan of comparator U1 is connected to the positive input of comparator U2 through resistance R21
End, additionally, resistance R21 is also in parallel with an earth resistance R22.The outfan of comparator U2 connects through diode D1 and resistance R23
In the base stage of audion Q2, i.e. comparator U2, diode D1, resistance R23 and audion Q2 series connection.Additionally, at resistance R23
And a wave filter of also connecting between audion Q2, this wave filter is made up of electric capacity C3 and resistance R24.The colelctor electrode string of audion Q2
Connection relay J K2 and resistance R25, relay J K2 is also in parallel with a diode D2 (the second diode).It is worthy of note, electricity
Resistance R1 also connects with battery charging unit M3.Between resistance R1 and relay J K1, diode D3 (the three or two pole of also connecting
Pipe), the positive pole of D3 is connected to the outfan of battery charging unit M3, and negative pole is connected on diode JK1.Diode D3 makes
With, prevent electric current adverse current occurs in battery M1 voltage problem time excessive.
For a person skilled in the art, after reading described above, various changes and modifications will be apparent to undoubtedly.
Therefore, appending claims should regard the whole variations and modifications containing true intention of the present utility model and scope as.
In Claims scope, the scope of any and all equivalence and content, be all considered as still belonging to intention of the present utility model and model
In enclosing.
Claims (7)
1. after having charging complete, the battery charger of automatic break function, including battery (M1), is all connected with described battery
And interconnective relay group (M2) and battery charging unit (M3) (M1), it is characterised in that described circuit also include in order to
Indicate the charging indicating member (M4) of described battery (M1) charged state and be used to disconnect institute after described battery (M1) is full of
State the detection switching units (M5) of relay group (M2)；
Wherein, described charging indicating member (M4) is electrically connected with described battery charging unit (M3) and described battery (M1) respectively
Connecing, described detection switching units (M5) electrically connects with described relay group (M2) and described battery charging unit (M3) respectively.
The battery charger with break function automatically after charging complete the most according to claim 1, it is characterised in that
Described relay group (M2) includes the first relay (JK1) and the second relay (JK2), and described battery (M1) and described battery fill
Being in series with the first resistance (R1) and described first relay (JK1) between electric unit (M3), described charging indicating member (M4) is wrapped
Include first comparator (U1) in parallel with described first resistance (R1) and the luminescence two connected with described first comparator (U1)
Pole pipe (LED), the in-phase input end of described first comparator (U1) electrically connects with the outfan of described battery charging unit (M3),
Reverse input end electrically connects with the outfan of described battery (M1).
The battery charger with break function automatically after charging complete the most according to claim 2, it is characterised in that
Also connect between described first comparator (U1) and described light emitting diode (LED) one first audion (Q1), the described 1st
The base stage of pole pipe (Q1) electrically connects with described first comparator (U1) outfan, grounded emitter, colelctor electrode and described luminous two
Pole pipe (LED) electrical connection.
The battery charger with break function automatically after charging complete the most according to claim 2, it is characterised in that
Described detection switching units (M5) includes the second comparator (U2) and the second audion (Q2), described second comparator of series connection
(U2) in-phase input end accesses the outfan of described first comparator (U1), reverse input end ground connection, and outfan accesses described
The base stage of the second audion (Q2), the colelctor electrode of described second audion (Q2) be sequentially connected in series described second relay (JK2) with
And described battery charging unit (M3), grounded emitter.
The battery charger with break function automatically after charging complete the most according to claim 4, it is characterised in that
Also connect between described second comparator (U2) and described second audion (Q2) one first diode (D1), described one or two pole
The positive pole of pipe (D1) electrically connects with the outfan of described second comparator (U2).
The battery charger with break function automatically after charging complete the most according to claim 5, it is characterised in that
Described second relay (JK2) is also in parallel with one second diode (D2).
The battery charger with break function automatically after charging complete the most according to claim 2, it is characterised in that
Also connect between described first resistance (R1) and described first relay (JK1) one the 3rd diode (D3), described three or two pole
The positive pole of pipe (D3) electrically connects with described first resistance (R1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620908837.0U CN205882798U (en) | 2016-08-19 | 2016-08-19 | Battery charging circuit with charge accomplish after automatic disconnection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620908837.0U CN205882798U (en) | 2016-08-19 | 2016-08-19 | Battery charging circuit with charge accomplish after automatic disconnection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205882798U true CN205882798U (en) | 2017-01-11 |
Family
ID=57705116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620908837.0U Expired - Fee Related CN205882798U (en) | 2016-08-19 | 2016-08-19 | Battery charging circuit with charge accomplish after automatic disconnection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205882798U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106712196A (en) * | 2017-01-21 | 2017-05-24 | 合肥惠科金扬科技有限公司 | Charging protection circuit and charger |
| CN106786995A (en) * | 2017-02-21 | 2017-05-31 | 苏州协鑫集成储能科技有限公司 | Energy storage control device and its control method |
| CN106849239A (en) * | 2017-02-21 | 2017-06-13 | 苏州协鑫集成储能科技有限公司 | Energy storage control device, energy storage charging method and energy-storage box |
| CN110071551A (en) * | 2019-05-30 | 2019-07-30 | 温州贝塔电子科技有限公司 | A kind of mobile phone additives for overcharge protection circuit |
| CN110071552A (en) * | 2019-05-30 | 2019-07-30 | 温州大学 | A kind of battery charging management circuit |
-
2016
- 2016-08-19 CN CN201620908837.0U patent/CN205882798U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106712196A (en) * | 2017-01-21 | 2017-05-24 | 合肥惠科金扬科技有限公司 | Charging protection circuit and charger |
| CN106712196B (en) * | 2017-01-21 | 2023-05-16 | 合肥惠科金扬科技有限公司 | Charging protection circuit and charger |
| CN106786995A (en) * | 2017-02-21 | 2017-05-31 | 苏州协鑫集成储能科技有限公司 | Energy storage control device and its control method |
| CN106849239A (en) * | 2017-02-21 | 2017-06-13 | 苏州协鑫集成储能科技有限公司 | Energy storage control device, energy storage charging method and energy-storage box |
| CN110071551A (en) * | 2019-05-30 | 2019-07-30 | 温州贝塔电子科技有限公司 | A kind of mobile phone additives for overcharge protection circuit |
| CN110071552A (en) * | 2019-05-30 | 2019-07-30 | 温州大学 | A kind of battery charging management circuit |
| CN110071552B (en) * | 2019-05-30 | 2021-05-04 | 温州大学 | Battery charging management circuit |
| CN110071551B (en) * | 2019-05-30 | 2021-08-03 | 温州贝塔电子科技有限公司 | Overcharge protection circuit for mobile phone |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170111 |