CN107968473A - A kind of intelligent electric automobile discharge and recharge stake - Google Patents
A kind of intelligent electric automobile discharge and recharge stake Download PDFInfo
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- CN107968473A CN107968473A CN201711454097.3A CN201711454097A CN107968473A CN 107968473 A CN107968473 A CN 107968473A CN 201711454097 A CN201711454097 A CN 201711454097A CN 107968473 A CN107968473 A CN 107968473A
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- 230000005669 field effect Effects 0.000 description 10
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- 238000010586 diagram Methods 0.000 description 2
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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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- 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
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
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- H02J7/027—
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- H02J2007/10—
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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
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00302—Overcharge protection
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Abstract
The invention discloses a kind of intelligent electric automobile discharge and recharge stake, is related to electric automobile charge and discharge electro-technical field.Including rectification circuit, ration the power supply protection circuit, comparison circuit, charging circuit, discharge circuit and warning circuit.The present invention can select charging by switching S or discharge, and can be automatically powered off after fully charged, can stop powering to bulk power grid when being discharged to the minimum electricity of storage battery, switch to charge.And automatically power off and open a way warning function with excess load.Only possess charge function the beneficial effects of the invention are as follows the charging pile of changing over without possessing the problem of discharging function, it is not necessary to labor management, it is easy to use and safe.
Description
Technical field
The present invention relates to electric automobile charge and discharge electro-technical field, is specifically a kind of intelligent electric automobile discharge and recharge stake.
Background technology
Since electric automobile has the advantages that environmentally friendly and energy saving, vigorously supporting and promoting for national governments is received.But
Due to being limited be subject to vehicular electricity storage tankage, the distance travelled of most of electric automobile is no more than 200km, therefore electric automobile
In order to avoid not enough power supply influences normal trip, it is necessary to be its electric energy supplement to charging station, how quickly and efficiently to give electronic
Automobile charging is to influence the essential condition of electric automobile popularization.In addition according to related data statistics, most of electric automobile, especially
Private car, the probably only 2-3 hour time of traveling on the way among one day, in the maximum after electric automobile is fully charged travels
Journey will be far longer than most of electric automobile distance travelled of one day.Therefore electric automobile car owner is meeting that oneself is used in everyday
Under the premise of, bulk power grid can be accessed by charge and discharge device completely, in the power load low ebb phase, be filled by bulk power grid to electric automobile
Electricity；And arrived power load peak period, then it is then to be powered from electric automobile to bulk power grid, we term it electric automobile and power grid
Interaction technique.
The content of the invention
, both can be with view of the above-mentioned problems of the prior art, the present invention provides a kind of intelligent electric automobile discharge and recharge stake
Charge to electric automobile, electric automobile can also be powered by it to bulk power grid.
To achieve the above object, the present invention adopts the following technical scheme that：
A kind of intelligent electric automobile discharge and recharge stake, including rectification circuit, ration the power supply protection circuit, comparison circuit, charging circuit,
Discharge circuit and warning circuit；The rectification circuit side is electrically connected with protection circuit of rationing the power supply, and opposite side is electrically connected with comparison circuit
Connect；The comparison circuit is electrically connected with discharge circuit, charging circuit respectively further through selecting switch；The warning circuit and charging
Circuit is electrically connected.
Preferably, the rectification circuit includes switching SB, the normally closed switch KM1-1 of relay KM1, current transformer
LH, transformer B, rectistack UR1, UR2, capacitance C1, C2, Integrated circuit IC 1, IC2；SB series connections are wherein switched in power switch
Between the input terminal of current transformer LH, the normally closed switch KM1-1 series connections of relay KM1 are in current transformer LH and transformation
Between the input terminal of device B, the output of current transformer LH terminates 1 foot and 2 feet of rectistack UR1, and the output termination of transformer B is whole
1 foot and 2 feet of heap UR2 is flowed, the cathode of capacitance C1 connects 3 feet of rectistack UR1, and anode connects 4 feet of rectistack UR1, capacitance C2's
Cathode connects 3 feet of rectistack UR2, and anode connects 4 feet of rectistack UR2, and Integrated circuit IC 1,1 foot of IC2 all connect rectistack UR2's
3 feet, 2 feet all connect 4 feet of rectistack UR2,3 feet of Integrated circuit IC 1 connect Integrated circuit IC 11 foot and Integrated circuit IC 68,
11st, 12 foot, 3 feet of Integrated circuit IC 2 connect 13 feet of Integrated circuit IC 6.
Preferably, the model 7812 of the Integrated circuit IC 1；The model 7805 of the Integrated circuit IC 2.
Preferably, the protection circuit of rationing the power supply includes potentiometer RP1, resistance R1, diode D1, light emitting diode
LED1, relay KM1 and Integrated circuit IC 3；The fixation of wherein potentiometer RP1 is terminated between 3 feet of rectistack UR1 and ground,
5 feet of termination integrated circuit are slided, resistance R1 is connected between the 2 of Integrated circuit IC 3,3 feet and the cathode of Light-emitting diode LED 1,
The anode ground connection of Light-emitting diode LED 1, the plus earth foot of diode D1, cathode connect the 2 of Integrated circuit IC 3,3 feet, relay
KM1 is connected between the 2 of Integrated circuit IC 3,3 feet and ground, the 4 feet ground connection of Integrated circuit IC 3.
Preferably, the model TWH8778 of the Integrated circuit IC 3.
Preferably, the comparison circuit includes resistance R2, R3, R4, R5, R6, R7, diode D2, triode BG1, after
Electric appliance J1, switch S1, Integrated circuit IC 4, IC5；Wherein resistance R2 is connected between fixing end and the ground of switch S1, and resistance R3 is connected on
Between 1 foot and 2 feet of Integrated circuit IC 4, resistance R4 is connected between 1 foot of Integrated circuit IC 4 and ground, and resistance R5 is connected on integrated electricity
Between 2 feet of road IC4 and 2 feet of Integrated circuit IC 5, resistance R6 is connected on 3 feet of Integrated circuit IC 5 and the normally closed of relay J1 is touched
Between point J1-2, resistance R7 is connected between the emitter and ground of triode BG1, and the cathode of diode D2 connects the collection of triode BG1
Electrode, anode connect 3 feet of rectistack UR2, and relay J1 is attempted by diode D2 both ends, and the base stage of triode BG1 connects integrated electricity
1 foot of road IC5, switchs that 1 end of S1 is hanging, and 1 foot of 2 termination Integrated circuit IC 4,3 feet of Integrated circuit IC 4 meet rectistack UR2
3 feet, 8 feet of Integrated circuit IC 5 connect 3 feet of rectistack UR2,4 feet ground connection.
Preferably, the model LM317 of the Integrated circuit IC 4, the model TL082 of Integrated circuit IC 5, triode
The model 5551 of BG1, switch S1 are the band switch with four groups of contacts, are linked switch.
Preferably, the discharge circuit includes resistance R8, R9, Light-emitting diode LED 2, the normally opened contact of relay J1
J1-1, switchs S4；Wherein resistance R8 is connected between the cathode and ground of Light-emitting diode LED 2, and resistance R9 is connected on light emitting diode
Between the anode and ground of LED2, the normally opened contact J1-1 of relay J1 is connected on the cathode and switch S4 of the vehicle-mounted storage battery of electric automobile
Fixing end, switch that " 1 " end of S4 is hanging, and " 2 " terminate the cathode of Light-emitting diode LED 2.
Preferably, the warning circuit includes resistance R30, R31, R32, R33, R34, R35, capacitance C11, C12, current potential
Device RP2, Integrated circuit IC 7 and loudspeaker BW；Wherein resistance R30 and capacitance C11 parallel connections be followed by Integrated circuit IC 6 16 feet and
Between ground, resistance R31 and capacitance C12 parallel connections are followed by between 1 foot and ground of Integrated circuit IC 6, and resistance R32 is connected on integrated circuit
Between 16 feet of IC6 and the cathode of Light-emitting diode LED 3, resistance R33 is connected between 3 feet of Integrated circuit IC 7 and ground, resistance
R34 is connected between 2 feet of Integrated circuit IC 7 and the anode of the vehicle-mounted storage battery of electric automobile, and resistance R35 is connected on Integrated circuit IC 7
3 feet and Integrated circuit IC 6 13 foot between, potentiometer RP2 is connected on 1 foot and the vehicle-mounted electric power storage of electric automobile of Integrated circuit IC 6
Between the anode in pond, loudspeaker BW is connected between 1 foot of Integrated circuit IC 7 and ground.
Preferably, the model LM358 of the Integrated circuit IC 7.
Beneficial effect of the present invention：
The present invention can select charging by switching S or discharge, and can be automatically powered off after fully charged, when being discharged to electric power storage
It can stop powering to bulk power grid during the minimum electricity in pond, switch to charge.And automatically power off and open a way warning function with excess load.
The charging pile of changing over only possesses charge function without possessing the problem of discharging function, it is not necessary to labor management, it is easy to use
And safety.
Brief description of the drawings
Fig. 1 is the principle of the present invention block diagram.
Fig. 2 is the circuit diagram of the present invention.
Embodiment
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings.
A kind of as shown in Figure 1, intelligent electric automobile discharge and recharge stake, it is characterised in that：Including rectification circuit, protection electricity of rationing the power supply
Road, comparison circuit, charging circuit, discharge circuit and warning circuit；The rectification circuit side is electrically connected with protection circuit of rationing the power supply,
Opposite side is electrically connected with comparison circuit；The comparison circuit is electrically connected with discharge circuit, charging circuit respectively further through selecting switch
Connect；The warning circuit is electrically connected with charging circuit.
As shown in Fig. 2, rectification circuit includes switch SB, the normally closed switch KM1-1 of relay KM1, current transformer LH, becomes
Depressor B, rectistack UR1, UR2, capacitance C1, C2, Integrated circuit IC 1, IC2；SB series connections are wherein switched in power switch and electricity
Between the input terminal of current transformer LH, the normally closed switch KM1-1 series connections of relay KM1 are in current transformer LH and transformer B
Input terminal between, 1 foot and 2 feet of the output termination rectistack UR1 of current transformer LH, the output termination rectification of transformer B
1 foot and 2 feet of heap UR2, the cathode of capacitance C1 connect 3 feet of rectistack UR1, and anode connects 4 feet of rectistack UR1, and capacitance C2 is just
Pole connects 3 feet of rectistack UR2, and anode connects 4 feet of rectistack UR2, and Integrated circuit IC 1,1 foot of IC2 all connect the 3 of rectistack UR2
Foot, 2 feet all connect 4 feet of rectistack UR2,3 feet of Integrated circuit IC 1 connect Integrated circuit IC 11 foot and Integrated circuit IC 68,
11st, 12 foot, 3 feet of Integrated circuit IC 2 connect 13 feet of Integrated circuit IC 6.
Further, Integrated circuit IC 1, the model of IC2 7812 and 7805.
Protection circuit of rationing the power supply includes potentiometer RP1, resistance R1, diode D1, Light-emitting diode LED 1, relay KM1 with
Integrated circuit IC 3；The fixation of wherein potentiometer RP1 is terminated between 3 feet of rectistack UR1 and ground, slides termination integrated circuit
5 feet, resistance R1 is connected between the 2 of Integrated circuit IC 3,3 feet and the cathode of Light-emitting diode LED 1, Light-emitting diode LED 1
Anode is grounded, and the plus earth foot of diode D1, cathode connects the 2 of Integrated circuit IC 3,3 feet, and relay KM1 is connected on integrated circuit
Between 2,3 feet and ground of IC3, the 4 feet ground connection of Integrated circuit IC 3.
Further, the model TWH8778 of Integrated circuit IC 3.
Comparison circuit includes resistance R2, R3, R4, R5, R6, R7, and diode D2, triode BG1, relay J1, switch S1,
Integrated circuit IC 4, IC5；Wherein resistance R2 is connected between fixing end and the ground of switch S1, and resistance R3 is connected on the 1 of Integrated circuit IC 4
Between foot and 2 feet, resistance R4 is connected between 1 foot of Integrated circuit IC 4 and ground, and resistance R5 is connected on 2 foot sum aggregates of Integrated circuit IC 4
Into between 2 feet of IC circuit 5, resistance R6 is connected between 3 feet of Integrated circuit IC 5 and the normally-closed contact J1-2 of relay J1, electricity
Resistance R7 is connected between the emitter and ground of triode BG1, and the cathode of diode D2 connects the collector of triode BG1, and anode connects whole
3 feet of heap UR2 are flowed, relay J1 is attempted by diode D2 both ends, and the base stage of triode BG1 connects 1 foot of Integrated circuit IC 5, opens
1 end of pass S1 is hanging, and 1 foot of 2 termination Integrated circuit IC 4,3 feet of Integrated circuit IC 4 connect 3 feet of rectistack UR2, integrated circuit
8 feet of IC5 connect 3 feet of rectistack UR2,4 feet ground connection.
Further, the model LM317 of Integrated circuit IC 4, the model TL082 of Integrated circuit IC 5, triode BG1
Model 5551, switch S1-S4 is the band switch with four groups of contacts, is linked switch.
Charging circuit includes resistance R10, R11, R12, R13, R14, R15, R16, R17, R18, R19, R20, R21, R22,
R23, R24, R25, R26, R27, R28, R29, capacitance C3, C4, C5, C6, C7, C8, C9, C10, C13, zener diode D3, D4,
D5, D6, diode D7, D8, Light-emitting diode LED 3, triode BG2, BG3, BG4, BG5, field-effect tube BG6, BG7, transformer
T1, T2, the normally-closed contact J1-2 of relay J1, switchs S2, S3, K, inductance L, Integrated circuit IC 6；Wherein resistance R10 is connected on collection
Into between 2 feet and 14 feet of IC circuit 6, resistance R11 and capacitance C3 series connection are followed by between 2 feet and 3 feet of Integrated circuit IC 6,
Resistance R12 is connected between 15 feet of Integrated circuit IC 6 and 14 feet, and resistance R13 is connected between 15 feet of Integrated circuit IC 6 and ground,
Resistance R14 is connected between 4 feet of Integrated circuit IC 6 and 14 feet, and resistance R15 is connected between 2 feet of Integrated circuit IC 6 and ground, electricity
Resistance R16 is connected between 4 feet of Integrated circuit IC 6 and ground, and resistance R17 and capacitance C5 series connection are followed by 15 feet in Integrated circuit IC 6
And 3 between foot, resistance R18 is connected between 6 feet of Integrated circuit IC 6 and the collector of triode BG3, resistance R19 and capacitance C7
Series connection is followed by between 1 foot and 2 feet of transformer T1 input terminals, and resistance R20 is connected on 3 foot of transformer T1 output terminals and field-effect tube
Between the grid of BG7, resistance R21 is connected between 3 foot of transformer T2 output terminals and the grid of field-effect tube BG6, and resistance R22 is connected on
Between the grid and source electrode of field-effect tube BG7, resistance R23 is connected between the grid and source electrode of field-effect tube BG7, resistance R24 and
Capacitance C8 series connection is followed by between 1 foot and 2 feet of transformer T2 input terminals, and resistance R25 and capacitance C9 series connection are followed by transformer
Between 1 foot of T2 output terminals and the anode of diode D7, resistance R26 and capacitance C10 series connection are followed by the 3 of transformer T2 output terminals
Between the anode of foot and diode D8, resistance R27 is connected in parallel on capacitance C13 both ends, and resistance R29 and switch K are in parallel, then with resistance
R28 connects, and is connected between the anode and ground of the vehicle-mounted storage battery of electric automobile, capacitance C4 is connected on 4 feet and 13 feet of Integrated circuit IC 6
Between, capacitance C6 is connected between 6 feet of Integrated circuit IC 5 and the collector of triode BG3, the cathode sending and receiving light two of capacitance C13
The cathode of pole pipe LED3, anode ground connection, the anode of zener diode D3, D4 are connected, and are then parallel to resistance R23, two pole of voltage stabilizing
The anode of pipe D5, D6 are connected, and are then parallel to resistance R22, and the cathode of diode D7, D8 connect the 1 of transformer T2 output terminals respectively
Foot and 3 feet, anode are connected, and the cathode of Light-emitting diode LED 3 meets inductance L, and anode connects " 1 " end of switch S2, triode BG2's
Base stage is connected with the base stage of BG3, and the emitter of BG2 is connected with the emitter of BG3, and the collector of BG2 connects the 3 of Integrated circuit IC 1
Foot, the grounded collector of BG3, the base stage of triode BG4 are connected with the base stage of BG5, the emitter of BG4 and the emitter phase of BG5
Even, the collector of BG4 connects 3 feet of Integrated circuit IC 1, the grounded collector of BG5, the grid connecting resistance R23 of field-effect tube BG6,
Drain electrode connects 3 feet of Integrated circuit IC 1, and source electrode connects the drain electrode of field-effect tube BG7, the grid connecting resistance R22 of field-effect tube BG7, leakage
Pole is grounded, and 1 foot of transformer T1 input terminals connects the emitter of BG2, and 2 feet connect the emitter of BG4,1 foot connecting resistance R21 of output terminal, 2 feet
2 foot of transformer T2 input terminals, 3 foot connecting resistance R20 are connect, 4 feet are grounded, and 1 foot of transformer T2 input terminals connects 3 feet of Integrated circuit IC 1,
1 foot of output terminal connects the cathode of diode D7,2 feet ground connection, and 3 feet meet the cathode of diode D8, the normally-closed contact J1-2 of relay J1
It is connected between the fixing end of switch S2 and the fixing end of S3, switchs the anode of " 1 " termination Light-emitting diode LED 3 of S2, " 2 " end
Vacantly, the fixing end of " 2 " termination switch S2 of S3 is switched, " 2 " end is hanging, and inductance L is connected on two pole of anode and light of diode D7
Between the cathode of pipe LED3,1 foot of Integrated circuit IC 6 meets potentiometer RP2,2 foot connecting resistance R10, R11 and R15, and 3 feet connect capacitance
C3, C5,4 foot connecting resistance R14, R16 and capacitance C4,5 feet meet capacitance C6,6 foot connecting resistance R18,7 feet ground connection, and 8,11,12 feet connect collection
Into 3 feet of IC circuit 1,9 feet connect the base stage of triode BG5, and 10 feet connect the base stage of triode BG2, and 13 feet connect Integrated circuit IC 2
3 feet, 14 foot connecting resistance R10, R12, R14,15 foot connecting resistance R12, R13, R16,16 foot connecting resistance R32.
Further, the voltage stabilizing value of zener diode D3, D4, D5, D6 is 15V, the model of diode D7, D8
BYBP80, triode BG2, BG4 are NPN casts, model 5551, and triode BG3, BG5 are PNP pipe type, model 5401, field
Effect pipe BG6, BG7 are N-channel, model 3A400V, the model TL494 of Integrated circuit IC 6.
Discharge circuit includes resistance R8, R9, and Light-emitting diode LED 2, the normally opened contact J1-1 of relay J1, switchs S4；Its
Middle resistance R8 is connected between the cathode and ground of Light-emitting diode LED 2, and resistance R9 is connected on the anode and ground of Light-emitting diode LED 2
Between, the normally opened contact J1-1 of relay J1 is connected on the cathode of the vehicle-mounted storage battery of electric automobile and the fixing end of switch S4, switchs S4
" 1 " end it is hanging, " 2 " terminate the cathode of Light-emitting diode LED 2.
Warning circuit includes resistance R30, R31, R32, R33, R34, R35, and capacitance C11, C12, potentiometer RP2, integrates electricity
Road IC7 and loudspeaker BW；Wherein resistance R30 and capacitance C11 parallel connections are followed by between 16 feet and ground of Integrated circuit IC 6, resistance
R31 and capacitance C12 parallel connections are followed by between 1 foot and ground of Integrated circuit IC 6, resistance R32 be connected on Integrated circuit IC 6 16 feet and
Between the cathode of Light-emitting diode LED 3, resistance R33 is connected between 3 feet of Integrated circuit IC 7 and ground, and resistance R34 is connected on integrated
Between the anode of the vehicle-mounted storage battery of 2 feet and electric automobile of IC circuit 7, resistance R35 is connected on 3 feet of Integrated circuit IC 7 and integrates
Between 13 foot of IC circuit 6, potentiometer RP2 be connected on Integrated circuit IC 61 foot and the vehicle-mounted storage battery of electric automobile anode it
Between, loudspeaker BW is connected between 1 foot of Integrated circuit IC 7 and ground.
Further, the model LM358 of the Integrated circuit IC 7.
The operation principle of the present invention is as follows：
Electric automobile car owner can determine to be charging or exchange income for bulk power grid sale of electricity according to own situation.If
Selection charging, is just placed in switch S1-S4 the position of " 1 "；If select, to bulk power grid sale of electricity, to be just placed in " 2 " switch S1-S4
Position；Switch S1-S4 is the band switch with four groups of contacts, is linked switch, is common action.
Charging process：S1-S4 will be switched and be placed in the position of " 1 ", after power on, Integrated circuit IC 1 exports 12V DC electricity
Pressure, 6 starting of oscillation of Integrated circuit IC work, its 9 foot and 10 feet output phase-veversal switch signal, switching frequency is by the external electricity of 5 feet and 6 feet
The numerical value for hindering R18 and capacitance C6 determines that its output pulse width duty cycle is fed back by 16 feet and the adjustment of 1 foot, is put through triode BG2-BG5
Greatly, transformer T1 isolation drives, field-effect tube BG6, BG7 carry out power conversion, then after transformer T2 isolates transformation, diode
Electric current needed for output charging after D7, D8 full-wave rectification.The switching of switch K can change charging current, available for quickly filling
Electricity and charge normal two class.When just starting to charge up, 2 foot voltages of Integrated circuit IC 5 are charging setting voltage, and 3 feet are
The real-time voltage of accumulator of electric car.If 3 foot voltages are less than 2 foot voltages, 1 foot output low level, triode BG1 ends,
Relay J1 coils are not attracted, its normally-closed contact J1-2 closures, charging pile charges to electric automobile, with accumulator of electric car
The rise of voltage, when 3 foot voltages are more than 2 foot voltage, 1 foot output high level, triode BG1 conductings, the suction of relay J1 coils
Close, its normally-closed contact J1-2 is disconnected, and charging finishes.
Discharge process：Switch S1-S4 is placed in the position of " 2 ", the output voltage of Integrated circuit IC 4 is electric automobile electric power storage
The minimum setting discharge voltage in pond, since the real-time voltage of accumulator of electric car at this time is higher than the minimum setting of accumulator of electric car
3 foot voltages of discharge voltage, i.e. Integrated circuit IC 5 are more than 2 foot voltages, 1 foot output high level, triode BG1 conductings, relay
J1 coils are attracted, its normally opened contact J1-1 closures, normally-closed contact J1-2 is disconnected, and storage battery passes through J1-1, and S4, resistance R9 are to big electricity
Net electric discharge, exchanges income for, and when cell voltage is less than minimum setting discharge voltage, i.e. 3 foot voltages are more than 2 foot voltages, the output of 1 foot
Low level, triode BG1 cut-offs, relay J1 coils are not attracted, its normally opened contact J1-1 is disconnected, and electric discharge terminates.
Ration the power supply protection：When electric automobile load electric current is not less than current setting value, LH secondary sides induced voltage signal warp
After rectistack UR1 rectifications high-power integrated switch TWH8778 cannot turn on, relay KM1 is not attracted, its normally-closed contact KM1-
1 closure, circuit normal work.And when electric automobile load becomes larger suddenly, it can increase load current, LH secondary side induced electricities
Signal also proportional increase, triggering TWH8778 conductings are pressed, relay KM1 is attracted, its normally-closed contact KM1-1 is disconnected, and circuit stops
Work, while Light-emitting diode LED 1 is lighted, instruction user excess load.
Open circuit alarm：When output open circuit, the positive and negative terminal potential difference of Integrated circuit IC 7 is zero, and comparator upset output is high
Level, drive the speaker send open fault alarm, and when charging normal, which is not zero, and exports low level,
Loudspeaker does not work.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the invention, although with reference to foregoing reality
Apply example the present invention is described in detail, for those skilled in the art, it still can be to foregoing each implementation
Technical solution described in example is modified, or equivalent substitution, all essences in the present invention are carried out to which part technical characteristic
With within principle, any modification, equivalent replacement, improvement and so on, should all be included in the protection scope of the present invention god.
Claims (10)
- A kind of 1. intelligent electric automobile discharge and recharge stake, it is characterised in that：Including rectification circuit, ration the power supply protection circuit, comparison circuit, Charging circuit, discharge circuit and warning circuit；The rectification circuit side is electrically connected with protection circuit of rationing the power supply, and opposite side is electrically connected with comparison circuit；The comparison circuit is electrically connected with discharge circuit, charging circuit respectively further through selecting switch；The warning circuit is electrically connected with charging circuit.
- A kind of 2. intelligent electric automobile discharge and recharge stake according to claim 1, it is characterised in that：The rectification circuit includes Switch SB, the normally closed switch KM1-1 of relay KM1, current transformer LH, transformer B, rectistack UR1, UR2, capacitance C1, C2, Integrated circuit IC 1, IC2；SB series connections are wherein switched between the input terminal of power switch and current transformer LH, the normally closed switch of relay KM1 KM1-1 series connections are between the input terminal of current transformer LH and transformer B, the output termination rectistack of current transformer LH 1 foot and 2 feet of UR1,1 foot and 2 feet of the output termination rectistack UR2 of transformer B, the cathode of capacitance C1 connect the 3 of rectistack UR1 Foot, anode connect 4 feet of rectistack UR1, and the cathode of capacitance C2 connects 3 feet of rectistack UR2, and anode connects 4 feet of rectistack UR2, collection 1 foot into IC circuit 1, IC2 all connects 3 feet of rectistack UR2, and 2 feet all connect 4 feet of rectistack UR2, and 3 feet of Integrated circuit IC 1 connect 1 foot of Integrated circuit IC 1 and 8,11,12 feet of Integrated circuit IC 6,3 feet of Integrated circuit IC 2 connect 13 feet of Integrated circuit IC 6.
- A kind of 3. intelligent electric automobile discharge and recharge stake according to claim 2, it is characterised in that：The Integrated circuit IC 1 Model 7812；The model 7805 of the Integrated circuit IC 2.
- A kind of 4. intelligent electric automobile discharge and recharge stake according to claim 1, it is characterised in that：The protection circuit of rationing the power supply Including potentiometer RP1, resistance R1, diode D1, Light-emitting diode LED 1, relay KM1 and Integrated circuit IC 3；The fixation of wherein potentiometer RP1 is terminated between 3 feet of rectistack UR1 and ground, slides 5 feet of termination integrated circuit, electricity Resistance R1 is connected between the 2 of Integrated circuit IC 3,3 feet and the cathode of Light-emitting diode LED 1, and the anode of Light-emitting diode LED 1 connects Ground, the plus earth foot of diode D1, cathode connect the 2 of Integrated circuit IC 3,3 feet, relay KM1 be connected on Integrated circuit IC 32, Between 3 feet and ground, the 4 feet ground connection of Integrated circuit IC 3.
- A kind of 5. intelligent electric automobile discharge and recharge stake according to claim 4, it is characterised in that：The Integrated circuit IC 3 Model TWH8778.
- A kind of 6. intelligent electric automobile discharge and recharge stake according to claim 1, it is characterised in that：The comparison circuit includes Resistance R2, R3, R4, R5, R6, R7, diode D2, triode BG1, relay J1, switch S1, Integrated circuit IC 4, IC5；Wherein resistance R2 is connected between fixing end and the ground of switch S1, and resistance R3 is connected between 1 foot of Integrated circuit IC 4 and 2 feet, Resistance R4 is connected between 1 foot of Integrated circuit IC 4 and ground, resistance R5 be connected on Integrated circuit IC 42 feet and Integrated circuit IC 52 Between foot, resistance R6 is connected between 3 feet of Integrated circuit IC 5 and the normally-closed contact J1-2 of relay J1, and resistance R7 is connected on three poles Between the emitter and ground of pipe BG1, the cathode of diode D2 connects the collector of triode BG1, and anode connects 3 feet of rectistack UR2, Relay J1 is attempted by diode D2 both ends, and the base stage of triode BG1 connects 1 foot of Integrated circuit IC 5, and it is hanging to switch 1 end of S1, 1 foot of 2 termination Integrated circuit IC 4,3 feet of Integrated circuit IC 4 connect 3 feet of rectistack UR2, and 8 feet of Integrated circuit IC 5 connect rectification 3 feet of heap UR2,4 feet ground connection.
- A kind of 7. intelligent electric automobile discharge and recharge stake according to claim 6, it is characterised in that：The Integrated circuit IC 4 Model LM317, the model 5551 of the model TL082 of Integrated circuit IC 5, triode BG1, switch S1 be with four groups The band switch of contact, is linked switch.
- A kind of 8. intelligent electric automobile discharge and recharge stake according to claim 1, it is characterised in that：The discharge circuit includes Resistance R8, R9, Light-emitting diode LED 2, the normally opened contact J1-1 of relay J1, switchs S4；Wherein resistance R8 is connected on light-emitting diodes Between the cathode and ground of pipe LED2, resistance R9 is connected between the anode and ground of Light-emitting diode LED 2, and the normally opened of relay J1 touches Point J1-1 is connected on the cathode of the vehicle-mounted storage battery of electric automobile and the fixing end of switch S4, and hanging, " 2 " termination is held in " 1 " for switching S4 The cathode of Light-emitting diode LED 2.
- A kind of 9. intelligent electric automobile discharge and recharge stake according to claim 1, it is characterised in that：The warning circuit includes Resistance R30, R31, R32, R33, R34, R35, capacitance C11, C12, potentiometer RP2, Integrated circuit IC 7 and loudspeaker BW；Wherein resistance R30 and capacitance C11 parallel connections are followed by between 16 feet and ground of Integrated circuit IC 6, resistance R31 and capacitance C12 Parallel connection is followed by between 1 foot and ground of Integrated circuit IC 6, and resistance R32 is connected on 16 feet and light emitting diode of Integrated circuit IC 6 Between the cathode of LED3, resistance R33 is connected between 3 feet of Integrated circuit IC 7 and ground, and resistance R34 is connected on the 2 of Integrated circuit IC 7 Between the anode of foot and the vehicle-mounted storage battery of electric automobile, resistance R35 be connected on Integrated circuit IC 73 feet and Integrated circuit IC 6 13 Between foot, potentiometer RP2 is connected between 1 foot of Integrated circuit IC 6 and the anode of the vehicle-mounted storage battery of electric automobile, loudspeaker BW It is connected between 1 foot of Integrated circuit IC 7 and ground.
- A kind of 10. intelligent electric automobile discharge and recharge stake according to claim 9, it is characterised in that：The Integrated circuit IC 7 Model LM358.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711454097.3A CN107968473B (en) | 2017-12-27 | 2017-12-27 | Intelligence electric automobile charge-discharge stake |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711454097.3A CN107968473B (en) | 2017-12-27 | 2017-12-27 | Intelligence electric automobile charge-discharge stake |
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| CN107968473A true CN107968473A (en) | 2018-04-27 |
| CN107968473B CN107968473B (en) | 2021-08-20 |
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| CN201711454097.3A Active CN107968473B (en) | 2017-12-27 | 2017-12-27 | Intelligence electric automobile charge-discharge stake |
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| Publication number | Publication date |
|---|---|
| CN107968473B (en) | 2021-08-20 |
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