CN104779679B - Electric car charger automatically powers off control circuit - Google Patents
Electric car charger automatically powers off control circuit Download PDFInfo
- Publication number
- CN104779679B CN104779679B CN201510215288.9A CN201510215288A CN104779679B CN 104779679 B CN104779679 B CN 104779679B CN 201510215288 A CN201510215288 A CN 201510215288A CN 104779679 B CN104779679 B CN 104779679B
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- Prior art keywords
- charger
- control
- relay
- circuit
- resistance
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- Expired - Fee Related
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
Control circuit is automatically powered off the present invention relates to electric car charger, it includes the first relay contact being connected in parallel being connected in the AC power input line of charger（K1‑1）With the second relay contact（K2‑1）, and the first control relay circuit, the second control relay circuit, wherein, the first control relay circuit is by 15v voltage ends（C、D）, fan control signal end（G）, delay circuit, triode（Q1、Q2）And first relay coil（K1）Constitute, the second control relay circuit by charger DC output end（E、F）, diode（D2）, resistance capacitance parallel combination（R1、C1）And second relay coil（K2）Constitute.The present invention charge terminate after can automatically cut off the power supply of charger, it is to avoid charger overcharge and be full of after waste of energy.
Description
Technical field
Control circuit is automatically powered off the present invention relates to a kind of electric car charger.
Background technology
With the development in epoch, the quantity of electric motor car has been very huge in society.Having electric motor car will enter to storage battery
Row charges.
Existing battery charger needs us to pull up ac power plug after storage battery is full of.If having forgotten to pull out, will
There are two problems, one is that charger is still working, and can waste part electric energy；Two is that storage battery has and overcharges phenomenon.
The content of the invention
The electronic of charger AC power can be automatically cut off after being full of it is an object of the present invention to provide a kind of safe, storage battery
Car automatic power-off function of charger controls circuit.
In order to achieve the above object, the technical solution adopted in the present invention is：A kind of electric car charger automatically powers off control
Circuit processed, it includes being connected on the first relay contact K1-1 being connected in parallel in the AC power input line of charger and the
Two relay contact K2-1, and the first control relay circuit, the second control relay circuit, wherein, the first relay control
Circuit processed is main by charger 15v voltage ends（C、D）, charger fan control signal end（G）, delay circuit, for controlling
The triode Q1 of voltage comparator input terminal voltage, the triode Q2 and first for controlling the first relay coil K1 work
Relay coil K1 is constituted, the main DC output end by charger of the second control relay circuit（E、F）, diode D2 and
The resistance R1 and electric capacity C1 and the second relay coil K2 for joining connection are constituted.
The triode Q1 for control voltage comparator input terminal voltage connects the wind of charger by base resistance R2
Fan control signal end（G）, by the fan control signal end of charger（G）Voltage control triode Q1 conducting and cut-off.
The delay circuit is by voltage comparator, resistance（R3、R4、R5）, collector capacitance C2 constitute, by adjusting resistance
The resistance of R3 and the capacitance of electric capacity C2, can control delay time.
The triode Q2 connects the output end of delay circuit by base resistance R6, and its colelctor electrode passes through the first relay
Device coil K1 and collector resistance R8 connects the 15v voltage ends of charger, and diode D1 and the first relay coil K1 is in parallel
Connection.
There is advantages below due to using above-mentioned technical proposal, the present invention：This electric car charger automatically powers off control electricity
After the upper charger of road repacking, even if charger is plugged 220v alternating currents and will not be also powered work, only when D. C. output plug is inserted
When upper electric motor car charges to storage battery, charger ability turn on automatically 220v alternating currents charge to storage battery.Storage battery is full of or pulls out
220v AC powers can be automatically disconnected after lower charging plug again.
Brief description of the drawings
Accompanying drawing 1 automatically powers off control circuit theory diagrams for electric car charger.
Accompanying drawing 2 automatically powers off the repacking location drawing of control circuit for electric car charger.
Wherein：K1、K2（Coil voltage DC12v, contact capacity 5A）, D1, D2（IN4004）, C1（220μF63v）、C2
（1000μF25v）, R1（100K）、R2（2.7K）、R3（1M）、R4（2.2K）、R5（56K）、R6（4.7K）、R7（10K）、R8（100
Ω2W）, voltage comparator（LM393）, Q1, Q2（C1815）.
Specific embodiment
Below in conjunction with the accompanying drawings, currently preferred specific embodiment is illustrated.
This electric car charger automatically powers off control circuit and charger AC power can be automatically cut off after storage battery is full of, such as
Shown in Fig. 1, electric car charger automatically powers off control circuit, it include be connected on it is in the AC power input line of charger and
Join the first relay contact K1-1 and the second relay contact K2-1 of connection, and the first control relay circuit, second after
Electrical apparatus control circuit, wherein, the first control relay circuit is by charger 15v voltage ends（C、D）, charger fan control letter
Number end（G）, delay circuit, the triode Q1 for control voltage comparator input terminal voltage, for control the first relay line
The triode Q2 and the first relay coil K1 of circle K1 work are constituted, and the second control relay circuit is defeated by the direct current of charger
Go out end（E、F）, diode D2, the resistance R1 being connected in parallel and electric capacity C1 and the second relay coil K2 constitute.
Charger first plugs alternating current, when DC charging plug plugs electric motor car, and storage battery is charged, because storage battery has electricity,
This electricity charges through D2 to C1, and charging current makes K2 moment adhesives, and maintenance not discharge for a long time, makes contact K2-1 have one to close
Journey.Serve as the power switch of exchange 220v due to A, B two, the charger short time obtains electric, storage battery is charged, fan running.Wind
Fan control signal turns on Q1 by G points, voltage comparator output high level, K1 adhesives, contact K1-1 closures.Even if contact
K2-1 disconnects, and the contact K1-1 that still there is closure at A, B two is connected to, and such charger can just charge to storage battery always.
After storage battery is full of or pulls up charging plug, fan stalling, Q1 cut-offs, the delay circuit being made up of LM393 is started working.About one
Voltage comparator output low level after and a half hours, Q1 cut-offs, K1 dead electricity, contact K1-1 disconnects, charger now just with friendship
Stream power supply is disconnected.DC charging plug is pulled up, the electric energy on electric capacity C1 can be discharged by R1, can just be carried out after half a minute next
Secondary automatic charging process.
Reference picture 2, it is very convenient that this electric car charger automatically powers off repacking of the control circuit to charger.It is described below
Once retrofit process：Be arranged on attachment device on one piece of platelet by the first step.Second step opens the shell of charger, assist side
The one side of cabling finds exchange 220v ends of incoming cables, will one therein cut-out two heads of formation, two heads respectively with attachment device
A, B two ends connection.E, F two ends of attachment device are connected to 3rd step the DC output end of charger, note positive-negative polarity.
D, C two ends are connected to 4th step the 15v voltage ends of charger, it is also noted that positive-negative polarity.G points are connected to the control letter of fan
At number（7 pin of LM324）.Attachment device is relatively fixed, shell is installed.
The application method that this electric car charger automatically powers off control circuit is as follows：First it is plugged the charger 220v for having reequiped
Ac power plug, then DC charging plug is inserted into electric motor car（Order should not be overturned, and such as insert reverse, please fill direct current
Plug is pulled up, and is plugged after half a minute）, charger just starts to charge storage battery.Although first slotting ac power plug,
But charger internal absolute guarantee is first to connect DC charging plug, is followed by AC power, complies fully with charger and plug wire is wanted
Ask.
To sum up, the present invention has advantages below：
Present invention control circuit can be fabricated to single small circuit board, take small volume.
Present invention control repacking of the circuit to charger is very convenient, and uses safe ready, storage battery be full of after energy
Automatically cut off charger AC power.
The above embodiments merely illustrate the technical concept and features of the present invention, its object is to allow person skilled in the art
Scholar will appreciate that present disclosure and implement according to this that it is not intended to limit the scope of the present invention, all according to the present invention
The equivalent change or modification that Spirit Essence is made, should all be included within the scope of the present invention.
Claims (1)
1. electric car charger automatically powers off control circuit, it is characterised in that：It includes that the AC power for being connected on charger is defeated
Enter the first relay contact K1-1 being connected in parallel and the second relay contact K2-1 on line, and the first Control electricity
Road, the second control relay circuit；
Wherein, the first control relay circuit it is main by charger 15v voltage ends C and D, the fan control signal end G of charger,
Delay circuit, the triode Q1 for control voltage comparator input terminal voltage, for control the first relay coil K1 work
Triode Q2 and the first relay coil K1 constitute, wherein triode Q1 pass through base resistance（R2）Connect the fan of charger
The colelctor electrode connection delay circuit of control signal end G, triode Q1, triode Q2 connects delay circuit by base resistance R6
Output end, and its colelctor electrode connects the 15v voltage ends of charger, two by the first relay coil K1 and collector resistance R8
Pole pipe D1 and the first relay coil K1 are connected in parallel；
The delay circuit is made up of voltage comparator, resistance R3, R4, R5, collector capacitance C2, wherein resistance R3 and electric capacity C2
Series connection, for the voltage of the one of input of control voltage comparator, another input of voltage comparator is input into by R4, R5
The partial pressure of formation, the output end of voltage comparator as delay circuit output end；
The main DC output end E by charger of second control relay circuit, F, diode D2, resistance R1, electric capacity C1 and
Second relay coil K2 is constituted, and wherein resistance R1, electric capacity C1 are connected in parallel, then with diode D2, the second relay coil
K2 is connected in series between DC output end E, F.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510215288.9A CN104779679B (en) | 2015-04-30 | 2015-04-30 | Electric car charger automatically powers off control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510215288.9A CN104779679B (en) | 2015-04-30 | 2015-04-30 | Electric car charger automatically powers off control circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104779679A CN104779679A (en) | 2015-07-15 |
| CN104779679B true CN104779679B (en) | 2017-06-16 |
Family
ID=53620977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510215288.9A Expired - Fee Related CN104779679B (en) | 2015-04-30 | 2015-04-30 | Electric car charger automatically powers off control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104779679B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202866973U (en) * | 2012-10-19 | 2013-04-10 | 北京汽车股份有限公司 | Automobile electronic fan control circuit and vehicle |
| CN203233223U (en) * | 2013-05-14 | 2013-10-09 | 河北工业大学 | Electric bicycle charging device with function of time-delay power-off |
| CN204538765U (en) * | 2015-04-30 | 2015-08-05 | 石小明 | Electric car charger auto-breaking control circuit |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100308657A1 (en) * | 2009-06-05 | 2010-12-09 | Bucher John C | Electronic Control Module Activated by Toggling a Wall Switch |
-
2015
- 2015-04-30 CN CN201510215288.9A patent/CN104779679B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202866973U (en) * | 2012-10-19 | 2013-04-10 | 北京汽车股份有限公司 | Automobile electronic fan control circuit and vehicle |
| CN203233223U (en) * | 2013-05-14 | 2013-10-09 | 河北工业大学 | Electric bicycle charging device with function of time-delay power-off |
| CN204538765U (en) * | 2015-04-30 | 2015-08-05 | 石小明 | Electric car charger auto-breaking control circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104779679A (en) | 2015-07-15 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170616 Termination date: 20180430 |