CN109617200A - A kind of intelligent modularized charger - Google Patents
A kind of intelligent modularized charger Download PDFInfo
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- CN109617200A CN109617200A CN201811253453.XA CN201811253453A CN109617200A CN 109617200 A CN109617200 A CN 109617200A CN 201811253453 A CN201811253453 A CN 201811253453A CN 109617200 A CN109617200 A CN 109617200A
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- 238000001914 filtration Methods 0.000 claims abstract description 9
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- 101150042711 adc2 gene Proteins 0.000 claims description 5
- 239000003990 capacitor Substances 0.000 claims description 4
- 230000005611 electricity Effects 0.000 description 8
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 101100162020 Mesorhizobium japonicum (strain LMG 29417 / CECT 9101 / MAFF 303099) adc3 gene Proteins 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
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- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
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- 230000008569 process Effects 0.000 description 1
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Classifications
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- 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
- H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
- H02J7/04—Regulation of charging current or voltage
- H02J7/06—Regulation of charging current or voltage using discharge tubes or semiconductor devices
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- H02J7/027—
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- H02J2007/10—
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a kind of intelligent modularized chargers, belong to Vehicular charger field, one kind is intended to provide after power battery is full of, the Vehicular charger of charging can be cut off, its key points of the technical solution are that including major loop and control circuit, the major loop includes the EMI filter circuit set gradually, current rectifying and wave filtering circuit, pfc circuit, full-bridge circuit, rectifying and wave-filtering output circuit, the control circuit includes MCU, accessory power supply, voltage feedback circuit, current feedback circuit, it further include intelligent control module, the intelligent control module includes main control unit, electric power detection unit, power circuit, charge switch circuit.By the way that intelligent object is arranged in charger, reduces rechargeable battery and be in floating charge state, so that power battery is safer, extend the service life of power battery.
Description
Technical field
The present invention relates to the technical field of Vehicular charger, in particular to a kind of intelligent modularized charger.
Background technique
Currently, environment and the energy are two hang-ups of today's society, automobile is the main trip tool of Modern Live, still
A large amount of tail gas of motor vehicle emission enter in atmosphere, and carbon dioxide gas is caused to increase, and acid rain area expands, and ozone layer is destroyed
And other a series of environmental problems, therefore electric car increasingly has been favored by people, electric car is with vehicle power supply
For power, with motor driven wheels travel.
Electric automobile battery charger is divided into Vehicular charger and non-on-board charger two according to whether being fixed on automobile
Class.Non-on-board charger is divided into alternating-current charging pile and two kinds of direct-current charging post again.
Vehicular charger is exported using AC power source as input as direct current, directly to power battery charging；It is off-board straight
Current charge machine, exchange input, direct current output can be directly to power battery charging.The former power is smaller, and the latter is larger.In addition
One kind, alternating-current charging pile, exchange are also exchange as input, output, cannot need to connect vehicle-mounted directly to power battery charging
Charger carries out AC-DC conversion, is just able to achieve charging.Fairly simple inside alternating-current charging pile, basic function is exactly by power grid
Alternating current is drawn out to the position for facilitating electric car to charge, and provides the charging interface of a standard.By vehicle-mounted charge function
The limitation of power, alternating-current charging pile power do not need generally too big yet.
It after power battery is fully charged, uses low current instead and continues to charge to power battery, be known as floating charging at this time, also referred to as
Trickle charge.Changing low current is generally not artificial settings, but after voltage is set as float charge voltage, power battery is because having filled
Foot electricity, the very little of acceptable electric current have just automatically formed floating current.Generally floating charge one is arrived after battery is filled substantially with
Two hours.But if continuing to charge, extra electric energy may translate into thermal energy, cause to move in floating charge state for a long time
Power battery further heats, and not only results in the power battery service life in this way and shortens, and may cause fire if serious.
Summary of the invention
The object of the present invention is to provide a kind of intelligent modularized chargers, have after power battery is full of, can cut off
The advantages of charging.
Above-mentioned technical purpose of the invention has the technical scheme that
A kind of intelligent modularized charger, including major loop and control circuit, the major loop include the EMI filtering set gradually
Circuit, current rectifying and wave filtering circuit, pfc circuit, full-bridge circuit, rectifying and wave-filtering output circuit, the control circuit include MCU,
Accessory power supply, voltage feedback circuit, current feedback circuit further include intelligent control module, and the intelligent control module includes master
Unit, electric power detection unit, power circuit, charge switch circuit are controlled,
Electric power detection unit is coupled with power battery for detecting whether power battery is full of；
Power circuit, input termination source of stable pressure is converted to power to main control unit power supply and electric power detection unit；
Charge switch circuit, access major loop are used for the connection of on-off major loop and power battery,
Wherein, electric power detection unit, which detects, sends charging completion signal, master control list to main control unit after power battery is fully charged
Member is according to floating charge time of setting, after the floating charge time reaching the time of setting, starting charge switch circuit cutting major loop with
The connection of power battery stops floating charge.
It is sent out after electric power detection unit detection power battery is fully charged to main control unit by using above-mentioned technical proposal
Charging is sent to finish signal, major loop continues to carry out floating charge to power battery, after reaching the floating charge time, starts charge switch circuit
The connection of major loop and power battery is cut off, floating charge is stopped, battery overheat is avoided to burn out battery.
Further, the power circuit includes two voltage stabilizing chips 7812,7805, resistance R2, diode D1, capacitor
C5, C4, source of stable pressure pass sequentially through the input terminal of resistance R2, diode D1 access voltage stabilizing chip 7812, and voltage stabilizing chip 7812 exports
It terminates into 7805 input terminal of voltage stabilizing chip, the output end of voltage stabilizing chip 7805 exports the operating voltage to work for main control unit.
By using above-mentioned technical proposal, the input terminal of voltage stabilizing chip 7812 access 24V source of stable pressure is converted 7812
Output end exports 12V DC voltage, and 12V DC voltage connect with voltage stabilizing chip 7805 and exports 5V direct current in its output end
Pressure.
Further, the main control unit includes control chip STC12C2052AD.
By using above-mentioned technical proposal, reset circuit, external data storage can be saved using STC12 series monolithic
Device (such as 24Cxx family chip), certain occasions can also save crystal oscillator, and circuit is simple, cheap.
Further, the intelligent control module further includes buzzer alarm circuit, and the buzzer alarm circuit includes
First switch circuit and buzzer, first switch circuit include switching tube Q1, and the base stage of switching tube Q1 accesses main control unit, current collection
Buzzer cathode is accessed in pole, and buzzer anode is connect with power circuit output end.
By using above-mentioned technical proposal, after power battery reaches the floating charge time, main control unit passes through first switch electricity
Road starts buzzer and user is reminded to stop charging.
Further, the intelligent control module further includes electric power detection indicator light circuit, the electric power detection indicator light
Circuit includes light emitting diode D3, resistance R6, and the anode of light emitting diode D3 connects the output end of voltage stabilizing chip 7805, light-emitting diodes
The cathode of pipe D3 accesses main control unit by resistance R6.
By using above-mentioned technical proposal, electric power detection indicator light circuit and electric power detection unit are connected to control chip simultaneously
Whether the port ADC7 of STC12C2052AD, light emitting diode D3 are in normal operating conditions for electric power detection unit.
Further, the input terminal of the voltage stabilizing chip 7812 connects power work indicating circuit, power work instruction electricity
Road includes resistance R1 and light emitting diode D2.
By using above-mentioned technical proposal, light emitting diode D2 facilitates investigation for showing whether source of stable pressure inputs normally
Failure.
Further, the charge switch circuit includes relay K1, the termination control chip of relay K1 coil one
The end VCC of STC12C2052AD, the end ADC2 of another termination control chip STC12C2052AD, the movable contact of relay K1 connect surely
Press the output end of chip 7812；The normally-closed contact of relay K1 connects major loop.
By using above-mentioned technical proposal, the end the ADC2 output signal for controlling chip STC12C2052AD makes relay K1
It closes, cutting power supply circuit is to stop powering to power battery.
Further, the main control unit is DSP.
By using above-mentioned technical proposal, DSP has powerful data-handling capacity and the high speed of service, so that circuit is run
More quickly.
In conclusion the invention has the following advantages: reducing charging electricity by the way that intelligent object is arranged in charger
Pond is in floating charge state, so that power battery is safer, extends the service life of power battery.
Detailed description of the invention
Fig. 1 is the system block diagram of major loop and control circuit in embodiment；
Fig. 2 is the circuit diagram of intelligent object in embodiment.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.
Embodiment: a kind of intelligent modularized charger, as shown in Figure 1, including major loop and control circuit, major loop includes
The EMI filter circuit that sets gradually, current rectifying and wave filtering circuit, pfc circuit, full-bridge circuit, rectifying and wave-filtering output circuit.
As shown in Fig. 2, control circuit includes MCU, accessory power supply, voltage feedback circuit, current feedback circuit.Vehicle-mounted charge
Machine inputs 220V alternating current after full-bridge rectifier filter, 220V alternating current is converted to DC signal, after pfc circuit is to rectification
DC voltage carry out DC/DC transformation, so that input current average value is followed full-wave rectified voltage a reference value by pfc circuit, and
For the sine wave of same phase.After full-bridge circuit, DC signal is converted to ac signal and energy is passed through change
After depressor primary side is transferred to secondary side, rectification output.Meanwhile according to the electricity of voltage feedback circuit and current feedback circuit acquisition output
Galvanic electricity presses and hardware PI is combined to control, and changes PWM driving control signal duty ratio, to realize the real-time monitoring of Current Voltage.
Charger further includes intelligent control module, and intelligent control module includes main control unit, electric power detection unit, power supply electricity
Road, charge switch circuit, buzzer alarm circuit.Main control unit preferably controls chip STC12C2052AD in the present embodiment,
DSP can be used.The end the GND ground connection of chip STC12C2052AD is controlled, the end RST is grounded by resistance R1.Electric power detection unit with
Power battery is coupled for detecting whether power battery is full of, and the source of stable pressure of the input termination 24V of power circuit is converted to master
Unit power supply and the power supply of electric power detection unit are controlled, charge switch circuit accesses major loop for on-off major loop and power battery
Connection.
Electric power detection unit, which detects, sends charging completion signal, main control unit to main control unit after power battery is fully charged
According to the floating charge time of setting, after the floating charge time reaching the time of setting, starting charge switch circuit is cut off major loop and is moved
The connection of power battery stops floating charge.
Power circuit includes two voltage stabilizing chips 7812,7805, resistance R2, diode D1, capacitor C5, C4.Source of stable pressure is
24V DC voltage source, source of stable pressure access the input terminal of voltage stabilizing chip 7812, voltage stabilizing chip 7812 by resistance R2, diode D1
Output end export 12V DC voltage.7812 output end of voltage stabilizing chip accesses the input terminal of voltage stabilizing chip 7805, voltage stabilizing chip
7805 output end exports 5V DC voltage, and accesses the end VCC of control chip STC12C2052AD.
The cathode of diode D1 is connected with power work indicating circuit in power circuit, and power work indicating circuit includes electricity
Hinder R1 and light emitting diode D2, the cathode ground connection of light emitting diode D2.When source of stable pressure normal power supply, Light-Emitting Diode D2 shines
Indicate source of stable pressure normal power supply.
Buzzer alarm circuit includes first switch circuit and buzzer, and first switch circuit includes and the first control chip
The resistance R11 of the end the ADC3 connection of STC12C2052AD, the base stage of resistance R11 connection switch pipe Q1, the emitter of switching tube Q1
Ground connection, the collector of switching tube Q1 connect the cathode of buzzer, and the anode of buzzer connects the output end of voltage stabilizing chip 7805.
Buzzer alarm circuit includes first switch circuit and buzzer, and first switch circuit includes and control chip
The resistance R11 of the end the ADC3 connection of STC12C2052AD, the base stage of resistance R11 connection switch pipe Q1, the emitter of switching tube Q1
Ground connection, the collector of switching tube Q1 connect the cathode of buzzer, and the anode of buzzer connects the output end of voltage stabilizing chip 7805.
Intelligent control module further includes electric power detection indicator light circuit, and electric power detection indicator light circuit includes light emitting diode
D3, resistance R6, the anode of light emitting diode D3 connect the output end of voltage stabilizing chip 7805, and the cathode of light emitting diode D3 passes through resistance
R6 connects the end ADC7 of the first control chip STC12C2052AD, and is grounded by capacitor C3.
Charge switch circuit includes relay K1, the VCC of the termination control of relay K1 coil one chip STC12C2052AD
End, the end ADC2 of another termination control chip STC12C2052AD, the movable contact of relay K1 connect the output of voltage stabilizing chip 7812
End；The normally-closed contact of relay K1 connects major loop.The end the ADC2 output signal of control chip STC12C2052AD makes relay
Device K1 is closed, and cutting power supply circuit is to stop powering to power battery.
Specific implementation process: it after electric power detection unit detection power battery is fully charged, has charged to main control unit transmission
Finish signal, major loop continues to carry out floating charge to power battery, and after reaching the floating charge time, starting charge switch circuit cutting is led back
The connection on road and power battery stops floating charge, and battery overheat is avoided to burn out battery.
This specific embodiment is only explanation of the invention, is not limitation of the present invention, those skilled in the art
Member can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as at this
All by the protection of Patent Law in the scope of the claims of invention.
Claims (8)
1. a kind of intelligent modularized charger, including major loop and control circuit, the major loop includes the EMI filter set gradually
Wave circuit, current rectifying and wave filtering circuit, pfc circuit, full-bridge circuit, rectifying and wave-filtering output circuit, the control circuit include
MCU, accessory power supply, voltage feedback circuit, current feedback circuit, it is characterised in that: it further include intelligent control module, the intelligence
Control module includes main control unit, electric power detection unit, power circuit, charge switch circuit,
Electric power detection unit is coupled with power battery for detecting whether power battery is full of；
Power circuit, input termination source of stable pressure is converted to power to main control unit power supply and electric power detection unit；
Charge switch circuit, access major loop are used for the connection of on-off major loop and power battery,
Wherein, electric power detection unit, which detects, sends charging completion signal, master control list to main control unit after power battery is fully charged
Member is according to floating charge time of setting, after the floating charge time reaching the time of setting, starting charge switch circuit cutting major loop with
The connection of power battery stops floating charge.
2. a kind of intelligent modularized charger according to claim 1, it is characterised in that: the power circuit includes two
Voltage stabilizing chip 7812,7805, resistance R2, diode D1, capacitor C5, C4, source of stable pressure pass sequentially through resistance R2, diode D1 access
The input terminal of voltage stabilizing chip 7812,7812 output end of voltage stabilizing chip access 7805 input terminal of voltage stabilizing chip, voltage stabilizing chip 7805
Output end exports the operating voltage to work for main control unit.
3. a kind of intelligent modularized charger according to claim 2, it is characterised in that: the main control unit includes control
Chip STC12C2052AD.
4. a kind of intelligent modularized charger according to claim 3, it is characterised in that: the intelligent control module also wraps
Buzzer alarm circuit is included, the buzzer alarm circuit includes first switch circuit and buzzer, and first switch circuit includes
The base stage of switching tube Q1, switching tube Q1 access main control unit, and collector accesses buzzer cathode, buzzer anode and power circuit
Output end connection.
5. a kind of intelligent modularized charger according to claim 4, it is characterised in that: the intelligent control module also wraps
Electric power detection indicator light circuit is included, the electric power detection indicator light circuit includes light emitting diode D3, resistance R6, light emitting diode
The anode of D3 connects the output end of voltage stabilizing chip 7805, and the cathode of light emitting diode D3 accesses main control unit by resistance R6.
6. a kind of intelligent modularized charger according to claim 5, it is characterised in that: the voltage stabilizing chip 7812 it is defeated
Enter end connection power work indicating circuit, power work indicating circuit includes resistance R1 and light emitting diode D2.
7. a kind of intelligent modularized charger according to claim 6, it is characterised in that: the charge switch circuit includes
The end VCC of the termination control of relay K1, relay K1 coil one chip STC12C2052AD, another termination control chip
The end ADC2 of STC12C2052AD, the movable contact of relay K1 connect the output end of voltage stabilizing chip 7812；The normally closed touching of relay K1
Point connection major loop.
8. a kind of intelligent modularized charger according to claim 1, it is characterised in that: the main control unit is DSP.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811253453.XA CN109617200A (en) | 2018-10-25 | 2018-10-25 | A kind of intelligent modularized charger |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811253453.XA CN109617200A (en) | 2018-10-25 | 2018-10-25 | A kind of intelligent modularized charger |
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| CN109617200A true CN109617200A (en) | 2019-04-12 |
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| CN201811253453.XA Pending CN109617200A (en) | 2018-10-25 | 2018-10-25 | A kind of intelligent modularized charger |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110696672A (en) * | 2019-11-08 | 2020-01-17 | 成都信息工程大学 | System for realizing rapid charging of power battery |
| CN110784009A (en) * | 2019-10-28 | 2020-02-11 | 樊氏科技发展有限公司 | Charging current adjustable UPS power charging system |
| CN113119733A (en) * | 2019-12-26 | 2021-07-16 | 北汽福田汽车股份有限公司 | Control method and device of vehicle-mounted charger, medium, vehicle-mounted charger and vehicle |
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| CN113119733A (en) * | 2019-12-26 | 2021-07-16 | 北汽福田汽车股份有限公司 | Control method and device of vehicle-mounted charger, medium, vehicle-mounted charger and vehicle |
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Application publication date: 20190412 |
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