CN107069878A - Alternating-current charging pile controls the expanded circuit and device of guidance circuit - Google Patents
Alternating-current charging pile controls the expanded circuit and device of guidance circuit Download PDFInfo
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- CN107069878A CN107069878A CN201710311175.8A CN201710311175A CN107069878A CN 107069878 A CN107069878 A CN 107069878A CN 201710311175 A CN201710311175 A CN 201710311175A CN 107069878 A CN107069878 A CN 107069878A
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Classifications
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- H02J7/0027—
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/60—Monitoring or controlling charging stations
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
Abstract
The present invention provides the expanded circuit and device that alternating-current charging pile controls guidance circuit, including：Original control guidance circuit, negative electricity source generating circuit, PWM output circuits and feedback circuit；Original control guidance circuit is connected with negative electricity source generating circuit and PWM output circuits, for sending the first PMW ripples to PWM output circuits and providing supply voltage to negative electricity source circuit；Negative electricity source generating circuit is used to export negative supply voltage according to supply voltage；PWM output circuits are connected with feedback circuit, for exporting the 2nd PWM ripples according to the first PMW wave direction cars end；Feedback circuit is connected with car end and former control guidance circuit respectively, the output for controlling the first PMW ripples according to car end feedback information.The present invention is realized on the basis of former control guidance circuit is not changed upgrades to the alternating-current charging pile that control guidance circuit meets newest Standard by installing the expander board of the present invention, convenient and swift without changing software or changing overall control panel.
Description
Technical field
The present invention relates to alternating-current charging pile technical field, the extension electricity of guidance circuit is controlled more particularly, to alternating-current charging pile
Road and device.
Background technology
With the expansion of national New Energy Industry, ev industry is also progressively grown up, and matched electric automobile fills
Electric stake is also developed, and charging pile product also emerges in an endless stream, and controls guidance circuit to be filled as charging pile with waiting in charging pile product
The channel of the interaction of electric car is particularly important, and control guidance circuit transmits signal by PWM waveform formula, and transmission charging pile is most
The information such as high-output power, automobile connection status to be charged, it is corresponding for being also made that in control guidance circuit national standard
Recommended parameter exports low and high level for ± Vcc in regulation, such as GB20234.2-2011, and regulation control is led in GB18487.1-2015
Draw circuit output low and high level for ± Vcc；
Due to the difference and the difference of designed capacity to old national standard understanding, and actual car end is for control guiding electricity
The detection on road can separate-Vcc low level by diode first, only identifying processing Vcc partial-level signals, on the market very
More old alternating-current charging pile product control guidance circuit output low level be only 0V, it is impossible to reach new national standard requirement-
Vcc, although can continue charging, do not comply with the national standard requirements and relevant policies regulation.
In summary, problem of the prior art is that current alternating-current charging pile is difficult to the negative voltage for reaching new national standard requirement
Low level, it is 0V to be only capable of output low level, is unfavorable for interacting with automobile to be charged.
The content of the invention
In view of this, it is an object of the invention to provide the expanded circuit and device that alternating-current charging pile controls guidance circuit,
Can be on the original circuit base for not changing existing charging pile, the expander board provided by installing the present invention upgrades to control
Guidance circuit processed meets the alternating-current charging pile of newest Standard, and the function of original charging pile circuit is not influenceed, soft without changing
Part changes overall control panel.
In a first aspect, the embodiments of the invention provide the expanded circuit that alternating-current charging pile controls guidance circuit, including：Original control
Guidance circuit processed, negative electricity source generating circuit, pulse width modulation (PWM) output circuit and feedback circuit；
The former control guidance circuit, is connected with the negative electricity source generating circuit and the PWM output circuits, uses respectively
In sending the first PMW ripples to the PWM output circuits, and supply voltage is provided to the negative electricity source circuit, wherein, described the
The low-voltage of one PMW ripples is nonnegative value；
The negative electricity source generating circuit, is connected with the PWM output circuits, for according to the supply voltage to described
PWM output circuits provide negative supply voltage；
The PWM output circuits, are connected with the feedback circuit and car end respectively, for according to the first PMW ripples
The 2nd PWM ripples are exported to the car end, wherein, the low-voltage of the 2nd PWM ripples is negative value；
The feedback circuit, is connected with the car end and the former control guidance circuit, for according to the car respectively
The feedback information at end controls the output of the first PMW ripples, so that the former control guidance circuit knows the real-time of the car end
State.
With reference in a first aspect, the embodiments of the invention provide the possible embodiment of the first of first aspect, wherein, institute
Stating feedback information includes level state information, and feedback circuit includes comparator circuit, analog switching circuit and impedance inverter circuit；
The comparator circuit, is connected with the car end and the analog switching circuit, for according to the car respectively
The level state information of feedback is held to the analog switching circuit transmission level composite signal；
The analog switching circuit, is connected with the impedance inverter circuit, for according to the level combinations signal control
Make the impedance inverter circuit and turn on different resistance, to control the voltage status of the first PMW ripples.
With reference to the first possible embodiment of first aspect, the embodiments of the invention provide second of first aspect
Possible embodiment, wherein, the level combinations signal includes two-way level signal, passes through the height of the two-way level signal
Low combination represents the different information of the car end feedback.
With reference in a first aspect, the embodiments of the invention provide the possible embodiment of the three of first aspect kind, wherein, it is described
Supply voltage includes positive supply voltage, and the negative electricity source generating circuit includes negative electricity source chip U1, resistance R3, resistance R4, resistance
R8, electric capacity C1 and electric capacity C4；
2 pin of the negative electricity source chip U1 are connected with one end of the electric capacity C4, and the other end of the C4 is born with described
Power supply chip U1 4 pin are connected, 3 pin of negative electricity source chip U1 ground connection, 8 pin of the negative electricity source chip U1 with it is described just
Supply voltage is connected, and 7 pin of the negative electricity source chip U1 are grounded by the resistance R4,6 pin of the negative electricity source chip U1
It is connected respectively with one end of the resistance R3 and one end of the resistance R8, the other end of the resistance R3 and the positive power supply
Voltage is connected, and the other end ground connection of the resistance R8,5 pin of the negative electricity source chip U1 are connected with the PWM output circuits
Connect and export the negative supply voltage to the PWM output circuits.
With reference in a first aspect, the embodiments of the invention provide the possible embodiment of the 4th of first aspect kind, wherein, institute
Stating PWM output circuits includes resistance R5, resistance R6, electric capacity C5 and photoelectrical coupler T1；
2 pin of the photoelectrical coupler T1 are connected with the impedance inverter circuit and the former control guidance circuit respectively
Connect and input the first PMW ripples, 3 pin of the photoelectrical coupler T1 are electric with one end of the resistance R6 and positive power supply respectively
Pressure is connected, and the other end of the resistance R6 is connected with 4 pin of the photoelectrical coupler T1, and the 5 of the photoelectrical coupler T1
Pin is connected with one end of the electric capacity C5 and the negative supply voltage respectively, and 1 pin of the photoelectrical coupler T1 passes through described
Resistance R5 is connected with the positive supply voltage.
With reference to the first possible embodiment of first aspect, the embodiments of the invention provide the 5th of first aspect kind
Possible embodiment, wherein, the comparator circuit include resistance R9, resistance R11, resistance R15, resistance R16, resistance R18,
Resistance R19, resistance R22, resistance R25, resistance R26, resistance R27, resistance R28, resistance R29, electric capacity C11, electric capacity C12, electric capacity
C13, electric capacity C16, dual operational amplifier, the first diode D4 and the second diode D6；
One end of the resistance R11 is connected with the PWM output circuits, the other end of the resistance R11 respectively with institute
One end that resistance R26 is stated with the resistance R16 is connected, the other end of the resistance R16 respectively with the resistance R28 and described
Resistance R19 one end is connected, the other end of resistance R19 ground connection, and the other end of the resistance R26 is respectively with described first
Diode D4 one end, 3 pin of the dual operational amplifier are connected with one end of the electric capacity C12, and the resistance R28 is another
One end respectively with one end of the second diode D6,5 pin of the dual operational amplifier and the electric capacity C13 is held to be connected
Connect, the other end of the electric capacity C12 be connected with the other end of the electric capacity C13 to be formed common point ground connection, the described 1st
The pole pipe D4 other end is connected with 2 pin of the dual operational amplifier and one end of the resistance R25 respectively, the resistance
The one end of the R25 other end respectively with the resistance R9 and the resistance R15 is connected, the other end of the resistance R9 and positive confession
Piezoelectric voltage is connected, 6 pin and the resistance R29 of the other end of the second diode D6 respectively with the dual operational amplifier
One end be connected, the other end of the resistance R29 other end respectively with the resistance R15 and one end of the resistance R18
It is connected, the other end ground connection of the resistance R18,4 pin of the dual operational amplifier are grounded by the resistance R27, described
8 pin of dual operational amplifier are connected by the resistance R22 with the positive supply voltage, 1 pin of the dual operational amplifier
One end with the analog switching circuit and the electric capacity C11 is connected respectively, 7 pin of the dual operational amplifier respectively with institute
One end that analog switching circuit is stated with the electric capacity C16 is connected, and the electric capacity C16 and the electric capacity C11 other end connect
Ground.
With reference in a first aspect, the embodiments of the invention provide the possible embodiment of the 6th of first aspect kind, wherein, institute
Stating analog switching circuit includes analog switch chip, and 1 pin, 2 pin, 3 pin, 4 pin, 5 pin of the analog switch chip are grounded, institute
State 6 pin, 7 pin and 8 pin analogue grounds of analog switch chip, 9 pin and 10 pin of the analog switch chip respectively with the ratio
1 pin and 7 pin compared with double computing comparators of device circuit are connected, 11 pin, 12 pin, 14 pin and 15 pin of the analog switch chip
It is connected with the impedance inverter circuit, 13 pin of the analog switch chip are connected simultaneously with the former control guidance circuit
The first PMW ripples are inputted, 16 pin of the analog switch chip are connected with positive supply voltage.
With reference in a first aspect, the embodiments of the invention provide the possible embodiment of the 7th of first aspect kind, wherein, institute
Stating impedance inverter circuit includes resistance R10, resistance R12, resistance R14, resistance R17 and triode Q3；
One end of the resistance R10 is connected with 11 pin of analog switch chip, one end of the resistance R12 and the mould
14 pin for intending switch chip are connected, and one end of the resistance R14 is connected with 15 pin of the analog switch chip, the electricity
Resistance R17 is connected with 12 pin of the analog switch chip, the resistance R10, the resistance R12, the resistance R14 and described
Base stage of the resistance R17 other end with the triode Q3 is connected, the grounded emitter of the triode Q3, three pole
Pipe Q3 colelctor electrode is connected with 2 pin of the photoelectrical coupler T1 in the PWM output circuits.
With reference to the third possible embodiment of first aspect, the embodiments of the invention provide the 8th of first aspect kind
Possible embodiment, wherein, the negative electricity source generating circuit also includes resistance R2, electric capacity C2, electric capacity C3 and light emitting diode；
The electric capacity C2, the electric capacity C3 and the resistance R2 one end ground connection, the other end of the resistance R2 with it is described
The anode of light emitting diode is connected, the negative electrode of the light emitting diode respectively with the electric capacity C2 other ends, the electric capacity C3
The other end is connected with the negative supply voltage.
Second aspect, the embodiments of the invention provide the expanding unit that alternating-current charging pile controls guidance circuit, including as above
Described alternating-current charging pile controls the expanded circuit of guidance circuit, in addition to connector, and the connector is used for negative supply electricity
The supply voltage of the former control guidance circuit of road input.
The present invention provides the expanded circuit and device that alternating-current charging pile controls guidance circuit, including：Original control guidance circuit,
Negative electricity source generating circuit, PWM output circuits and feedback circuit；Original control guidance circuit respectively with negative electricity source generating circuit and PWM
Output circuit is connected, for sending the first PMW ripples to PWM output circuits and providing supply voltage to negative electricity source circuit；Negative supply
Generation circuit for being provided according to supply voltage to PWM output circuits with bearing supply voltage；PWM output circuits and feedback circuit phase
Even, for exporting the 2nd PWM ripples according to the first PMW wave direction cars end；Feedback circuit controls guidance circuit phase with car end and original respectively
Even, for the output according to car end feedback information the first PMW ripples of control.The present invention, which is realized, is not changing former control guidance circuit
On the basis of upgrade to the alternating-current charging pile of newest Standard by installing the expander board of the present invention, without changing software
Or overall control panel is changed, it is convenient and swift.
Other features and advantages of the present invention will be illustrated in the following description, also, partly be become from specification
Obtain it is clear that or being understood by implementing the present invention.The purpose of the present invention and other advantages are in specification, claims
And specifically noted structure is realized and obtained in accompanying drawing.
To enable the above objects, features and advantages of the present invention to become apparent, preferred embodiment cited below particularly, and coordinate
Appended accompanying drawing, is described in detail below.
Brief description of the drawings
, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical scheme of the prior art
The accompanying drawing used required in embodiment or description of the prior art is briefly described, it should be apparent that, in describing below
Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before creative work is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is that alternating-current charging pile provided in an embodiment of the present invention controls guidance circuit structural representation；
Fig. 2 is another alternating-current charging pile control guidance circuit structural representation provided in an embodiment of the present invention；
Fig. 3 is negative supply circuit theory diagrams provided in an embodiment of the present invention；
Fig. 4 is PWM output circuits provided in an embodiment of the present invention and impedance inverter circuit schematic diagram；
Fig. 5 is comparator circuit schematic diagram provided in an embodiment of the present invention；
Fig. 6 is analog switching circuit schematic diagram provided in an embodiment of the present invention.
Icon：
10- original control guidance circuits；20- negative electricity source generating circuits；30-PWM output circuits；40- feedback circuits；41- hinders
Transformation circuit；42- analog switching circuits；43- comparator circuits；50- cars end.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with accompanying drawing to the present invention
Technical scheme be clearly and completely described, it is clear that described embodiment is a part of embodiment of the invention, rather than
Whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, belongs to the scope of protection of the invention.
At present, problem of the prior art is the low of the negative voltage that current alternating-current charging pile is difficult to reach new national standard requirement
Level, it is 0V to be only capable of output low level, is unfavorable for interacting with automobile to be charged.It is provided in an embodiment of the present invention based on this
Alternating-current charging pile controls the expanded circuit and device of guidance circuit, can pass through on the basis of former control guidance circuit is not changed
The expander board for installing the present invention upgrades to the alternating-current charging pile that control guidance circuit meets newest Standard, without modification
Software changes overall control panel, convenient and swift.
For ease of understanding the present embodiment, the alternating-current charging pile disclosed in the embodiment of the present invention is controlled to guide first
The expanded circuit of circuit describes in detail.
Fig. 1 is that alternating-current charging pile provided in an embodiment of the present invention controls guidance circuit structural representation.
Reference picture 1, alternating-current charging pile controls the expanded circuit of guidance circuit, including：Original control guidance circuit 10, negative supply
Generation circuit 20, pulse width modulation (PWM) output circuit 30 and feedback circuit 40；
Original control guidance circuit 10, be connected respectively with negative electricity source generating circuit 20 and PWM output circuits 30, for
PWM output circuits 30 send the first PMW ripples, and to negative electricity source circuit 20 provide supply voltage, wherein, the first PMW ripples it is low
Voltage is nonnegative value；
Negative electricity source generating circuit 20, is connected with PWM output circuits 30, for according to supply voltage to PWM output circuits
30 provide negative supply voltage；
PWM output circuits 30, are connected with feedback circuit 40 and car end 50 respectively, for according to the first PMW wave direction cars end
50 the 2nd PWM ripples of output, wherein, the low-voltage of the 2nd PWM ripples is negative value；
Feedback circuit 40, is connected with car end 50 and former control guidance circuit 10, for the feedback according to car end 50 respectively
Information controls the output of the first PMW ripples, so that former control guidance circuit 10 knows the real-time status at car end.
Specifically, former to control PWM generations part in guidance circuit 10 to produce high voltage for+Vcc, low-voltage is the first of 0V
PWM ripples, it is+Vcc to produce high voltage by PWM output circuits 30, and low-voltage is-Vcc the 2nd PWM ripples, is exported to car end 50,
Negative electricity source generating circuit 20 control in guidance circuit 10 power unit to produce voltage to bear supply voltage to be supplied to PWM based on former
Output circuit 30.
According to the exemplary embodiment of the present invention, as shown in Fig. 2 feedback information includes level state information, feedback circuit
40 include comparator circuit 43, analog switching circuit 42 and impedance inverter circuit 41；
Comparator circuit 43, is connected with car end and analog switching circuit respectively, for the level shape fed back according to car end
State information is to analog switching circuit transmission level composite signal；
Analog switching circuit 42, is connected with impedance inverter circuit 41, for controlling impedance to become according to level combinations signal
The different resistance of circuit turn-on is changed, to control the voltage status of the first PMW ripples.
Specifically, while being connected in parallel on the difference that output is fed back to the comparator circuit 43 on the circuit of car end 50 according to car end 50
Level state information exports two-way level combinations signal, combines to represent that car end 50 is fed back with the height of two-way level combinations signal
Varying level status, so as to represent Che Duan different conditions.For example, level combinations signal is two-way high level, then generation
Table car end feedback for 12V high level, represent Che Duan charging guns and be not connected with, the two-way level combinations letter that comparator circuit 43 is exported
Number follow-up analog switching circuit 42 is controlled to turn on different resistance, to control the voltage status of the first PWM ripples, so as to inform
The time of day at original control guidance circuit 10 cars on hand end 50, the change of car end state causes the change of the 2nd PWM wave voltages, and
Cause the change of the output level of comparator circuit 43, therefore cause the change of analog switch conductive channel, so as to cause impedance
Change, and then cause the voltage change of the first PWM ripples.
According to the exemplary embodiment of the present invention, level combinations signal includes two-way level signal, believed by two-way level
Number height combination represent the different information of the feedback of car end 50.
According to the exemplary embodiment of the present invention, supply voltage includes positive supply voltage, as shown in figure 3, negative supply is produced
Circuit 20 includes negative electricity source chip U1, resistance R3, resistance R4, resistance R8, electric capacity C1 and electric capacity C4；
Negative electricity source chip U1 2 pin are connected with electric capacity C4 one end, the C4 other end and negative electricity source chip U1 4 pin phases
Connection, negative electricity source chip U1 3 pin ground connection, negative electricity source chip U1 8 pin are connected with positive supply voltage, negative electricity source chip U1's
7 pin are grounded by resistance R4, and negative electricity source chip U1 6 pin are connected with resistance R3 one end and resistance R8 one end respectively, electricity
The resistance R3 other end is connected with positive supply voltage, and resistance R8 other end ground connection, negative electricity source chip U1 5 pin and PWM are exported
Circuit is connected and exports negative supply voltage to PWM output circuits.
Specifically, negative electricity source chip can be, but be not limited to, for example SGM3209, be accessed what is inputted through connector J3
Original control guidance circuit power supply, export-Vcc voltage is to PWM output circuits 30.
According to the exemplary embodiment of the present invention, as shown in figure 4, PWM output circuits 30 include resistance R5, resistance R6, electricity
Hold C5 and photoelectrical coupler T1；
Photoelectrical coupler T1 2 pin are connected with impedance inverter circuit and former control guidance circuit and input first respectively
PMW ripples, photoelectrical coupler T1 3 pin are connected with resistance R6 one end and positive supply voltage respectively, the resistance R6 other end
It is connected with photoelectrical coupler T1 4 pin, photoelectrical coupler T1 5 pin are connected with electric capacity C5 one end and negative supply voltage respectively
Connect, photoelectrical coupler T1 1 pin is connected by resistance R5 with positive supply voltage.
According to the exemplary embodiment of the present invention, as shown in figure 5, comparator circuit 43 includes resistance R9, resistance R11, electricity
Hinder R15, resistance R16, resistance R18, resistance R19, resistance R22, resistance R25, resistance R26, resistance R27, resistance R28, resistance
R29, electric capacity C11, electric capacity C12, electric capacity C13, electric capacity C16, dual operational amplifier, the first diode D4 and the second diode D6；
Resistance R11 one end is connected with PWM output circuits, the resistance R11 other end respectively with resistance R26 and resistance
R16 one end is connected, and the one end of the resistance R16 other end respectively with resistance R28 and resistance R19 is connected, and resistance R19's is another
One end is grounded, resistance R26 other end one end respectively with the first diode D4,3 pin of dual operational amplifier and electric capacity C12
One end is connected, resistance R28 other ends one end respectively with the second diode D6,5 pin of dual operational amplifier and electric capacity C13
One end is connected, the electric capacity C12 other end be connected with the electric capacity C13 other end to be formed common point ground connection, the first diode
The D4 other end is connected with 2 pin of dual operational amplifier and resistance R25 one end respectively, the resistance R25 other end respectively with
Resistance R9 is connected with resistance R15 one end, and the resistance R9 other end is connected with positive supply voltage, and the second diode D6's is another
One end is connected with 6 pin of dual operational amplifier and resistance R29 one end respectively, the resistance R29 other end respectively with resistance R15
The other end be connected with resistance R18 one end, resistance R18 other end ground connection, 4 pin of dual operational amplifier pass through resistance
R27 is grounded, and 8 pin of dual operational amplifier are connected by resistance R22 with positive supply voltage, the 1 pin difference of dual operational amplifier
Be connected with one end of analog switching circuit and electric capacity C11,7 pin of dual operational amplifier respectively with analog switching circuit and electric capacity
C16 one end is connected, and electric capacity C16 and electric capacity the C11 other end are grounded.
Specifically, PWM output circuits 30 produce VOT1, VOT2 by electric resistance partial pressure, by its power supply point with calculated in advance
Standard voltage value REF8V, REF4V that pressure is produced compares, by comparator circuit LM358 (U3A, U3B), according to the 2nd PWM
The difference of wave voltage, exports CH_SEL0 and CH_SEL1 in different combination voltage signals, such as Fig. 5.
According to the exemplary embodiment of the present invention, as shown in fig. 6, analog switching circuit 42 includes analog switch chip, mould
1 pin, 2 pin, 3 pin, 4 pin, 5 pin for intending switch chip are grounded, 6 pin, 7 pin and the 8 pin analogue grounds of analog switch chip, simulation
9 pin and 10 pin of switch chip are connected with 1 pin and 7 pin of double computing comparators of comparator circuit respectively, analog switch core
11 pin, 12 pin, 14 pin and 15 pin of piece are connected with impedance inverter circuit, and 13 pin of analog switch chip are guided with former control
Circuit is connected and inputs the first PMW ripples, and 16 pin of analog switch chip are connected with positive supply voltage.
Specifically, analog switch chip can be, but be not limited to, for example CD4052, according to comparator export it is different
Combination voltage signal CH_SEL0 and CH_SEL1, switch different gating passages, the first PWM ripples are switched into different resistance and born
CH1-, CH2-, CH3-, CH4- is carried to be turned on.
According to the present invention exemplary embodiment, as shown in figure 4, impedance inverter circuit 41 include resistance R10, resistance R12,
Resistance R14, resistance R17 and triode Q3；
Resistance R10 one end is connected with 11 pin of analog switch chip, resistance R12 one end and analog switch chip
14 pin are connected, and resistance R14 one end is connected with 15 pin of analog switch chip, and the 12 of resistance R17 and analog switch chip
It is connected, the base stage of resistance R10, resistance R12, resistance R14 and resistance the R17 other end with triode Q3 is connected, three poles
Pipe Q3 grounded emitter, triode Q3 colelctor electrode is connected with 2 pin of the photoelectrical coupler T1 in PWM output circuits.
Specifically, CH1-, CH2-, CH3-, CH4- control signal are accessed, different impedances and turn-on transistor 9013 is gated
(Q3), combined with analog switching circuit and control the first PWM ripples to corresponding PWM2 voltage status, feed back to former control guiding
CP current detection sections in circuit.It should be noted that the resistance R10 of left-half, resistance R12, resistance R14, resistance in Fig. 4
R17 and triode Q3 is impedance inverter circuit, and other are exported such as resistance R5, resistance R6, electric capacity C5 and photoelectrical coupler T1 for PWM
Circuit.
According to the exemplary embodiment of the present invention, as shown in figure 3, negative electricity source generating circuit 20 also includes resistance R2, electric capacity
C2, electric capacity C3 and light emitting diode；
Electric capacity C2, the electric capacity C3 and resistance R2 one end ground connection, the resistance R2 other end and the anode of light emitting diode
It is connected, the negative electrode of light emitting diode is connected with the electric capacity C2 other ends, the electric capacity C3 other ends and negative supply voltage respectively.
The present invention provides the expanded circuit that alternating-current charging pile controls guidance circuit, including：Original control guidance circuit, negative supply
Generation circuit, PWM output circuits and feedback circuit；Original control guidance circuit is electric with negative electricity source generating circuit and PWM outputs respectively
Road is connected, for sending the first PMW ripples to PWM output circuits and providing supply voltage to negative electricity source circuit；Negative supply produces electricity
Road for being provided according to supply voltage to PWM output circuits with bearing supply voltage；PWM output circuits are connected with feedback circuit, use
According to the 2nd PWM ripples of the first PMW wave direction cars end output；Feedback circuit is connected with car end and former control guidance circuit respectively, uses
In the output that the first PMW ripples are controlled according to car end feedback information.The present invention, which is realized, is not changing the base of former control guidance circuit
Upgrade to the alternating-current charging pile of newest Standard by installing the expander board of the present invention on plinth, without change software or
Overall control panel is changed, it is convenient and swift.
The expanding unit of alternating-current charging pile control guidance circuit includes alternating-current charging pile as described above and controls guidance circuit
Expanded circuit, as shown in figure 3, also including connector, connector is used to input former control guidance circuit to negative electricity source circuit
Supply voltage.Alternating-current charging pile provided in an embodiment of the present invention controls the expanding unit of guidance circuit, is provided with above-described embodiment
Alternating-current charging pile control guidance circuit expanded circuit there is identical technical characteristic, asked so can also solve identical technology
Topic, reaches identical technique effect.
The expanded circuit and the computer journey of device for the alternating-current charging pile control guidance circuit that the embodiment of the present invention is provided
Sequence product, including the computer-readable recording medium of program code is stored, the instruction that described program code includes can be used for holding
Method described in row previous methods embodiment, implements and can be found in embodiment of the method, will not be repeated here.
It is apparent to those skilled in the art that, for convenience and simplicity of description, the system of foregoing description
With the specific work process of device, the corresponding process in preceding method embodiment is may be referred to, be will not be repeated here.
In addition, in the description of the embodiment of the present invention, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
If the function is realized using in the form of SFU software functional unit and is used as independent production marketing or in use, can be with
It is stored in a computer read/write memory medium.Understood based on such, technical scheme is substantially in other words
The part contributed to prior art or the part of the technical scheme can be embodied in the form of software product, the meter
Calculation machine software product is stored in a storage medium, including some instructions are to cause a computer equipment (can be individual
People's computer, server, or network equipment etc.) perform all or part of step of each of the invention embodiment methods described.
And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage (ROM, Read-Only Memory), arbitrary access are deposited
Reservoir (RAM, Random Access Memory), magnetic disc or CD etc. are various can be with the medium of store program codes.In addition,
Term " first ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that indicating or implying relative importance.
Finally it should be noted that：Embodiment described above, is only the embodiment of the present invention, to illustrate the present invention
Technical scheme, rather than its limitations, protection scope of the present invention is not limited thereto, although with reference to the foregoing embodiments to this hair
It is bright to be described in detail, it will be understood by those within the art that：Any one skilled in the art
The invention discloses technical scope in, it can still modify to the technical scheme described in previous embodiment or can be light
Change is readily conceivable that, or equivalent substitution is carried out to which part technical characteristic；And these modifications, change or replacement, do not make
The essence of appropriate technical solution departs from the spirit and scope of technical scheme of the embodiment of the present invention, should all cover the protection in the present invention
Within the scope of.Therefore, protection scope of the present invention described should be defined by scope of the claims.
Claims (10)
1. a kind of alternating-current charging pile controls the expanded circuit of guidance circuit, it is characterised in that including：Original controls guidance circuit, born
Power generation circuit, pulse width modulation (PWM) output circuit and feedback circuit；
The former control guidance circuit, is connected with the negative electricity source generating circuit and the PWM output circuits respectively, for
The PWM output circuits send the first PMW ripples, and provide supply voltage to the negative electricity source circuit, wherein, described first
The low-voltage of PMW ripples is nonnegative value；
The negative electricity source generating circuit, is connected with the PWM output circuits, for according to the supply voltage to the PWM
Output circuit provides negative supply voltage；
The PWM output circuits, are connected with the feedback circuit and car end respectively, for according to the first PMW wave direction institute
State car end and export the 2nd PWM ripples, wherein, the low-voltage of the 2nd PWM ripples is negative value；
The feedback circuit, is connected with the car end and the former control guidance circuit, for according to the car end respectively
Feedback information controls the output of the first PMW ripples, so that the former control guidance circuit knows the real-time status at the car end.
2. alternating-current charging pile according to claim 1 controls the expanded circuit of guidance circuit, it is characterised in that the feedback
Information includes level state information, and feedback circuit includes comparator circuit, analog switching circuit and impedance inverter circuit；
The comparator circuit, is connected with the car end and the analog switching circuit respectively, for anti-according to the car end
The level state information of feedback is to the analog switching circuit transmission level composite signal；
The analog switching circuit, is connected with the impedance inverter circuit, for controlling institute according to the level combinations signal
State impedance inverter circuit and turn on different resistance, to control the voltage status of the first PMW ripples.
3. alternating-current charging pile according to claim 2 controls the expanded circuit of guidance circuit, it is characterised in that the level
Composite signal includes two-way level signal, and the difference that the car end is fed back is represented by the height combination of the two-way level signal
Information.
4. alternating-current charging pile according to claim 1 controls the expanded circuit of guidance circuit, it is characterised in that the power supply
Voltage includes positive supply voltage, and the negative electricity source generating circuit includes negative electricity source chip U1, resistance R3, resistance R4, resistance R8, electricity
Hold C1 and electric capacity C4；
2 pin of the negative electricity source chip U1 are connected with one end of the electric capacity C4, the other end of the C4 and the negative supply
Chip U1 4 pin are connected, the 3 pin ground connection of the negative electricity source chip U1,8 pin of the negative electricity source chip U1 and the positive power supply
Voltage is connected, and 7 pin of the negative electricity source chip U1 are grounded by the resistance R4, the 6 pin difference of the negative electricity source chip U1
It is connected with one end of the resistance R3 and one end of the resistance R8, the other end and the positive supply voltage of the resistance R3
It is connected, the other end ground connection of the resistance R8,5 pin of the negative electricity source chip U1 are connected simultaneously with the PWM output circuits
The negative supply voltage is exported to the PWM output circuits.
5. alternating-current charging pile according to claim 1 controls the expanded circuit of guidance circuit, it is characterised in that the PWM
Output circuit includes resistance R5, resistance R6, electric capacity C5 and photoelectrical coupler T1；
2 pin of the photoelectrical coupler T1 are connected simultaneously with the impedance inverter circuit and the former control guidance circuit respectively
Input the first PMW ripples, 3 pin of photoelectrical coupler T1 one end respectively with the resistance R6 and positive supply voltage phase
Connection, the other end of the resistance R6 is connected with 4 pin of the photoelectrical coupler T1,5 pin point of the photoelectrical coupler T1
It is not connected with one end of the electric capacity C5 and the negative supply voltage, 1 pin of the photoelectrical coupler T1 passes through the resistance
R5 is connected with the positive supply voltage.
6. alternating-current charging pile according to claim 2 controls the expanded circuit of guidance circuit, it is characterised in that the comparison
Device circuit includes resistance R9, resistance R11, resistance R15, resistance R16, resistance R18, resistance R19, resistance R22, resistance R25, resistance
R26, resistance R27, resistance R28, resistance R29, electric capacity C11, electric capacity C12, electric capacity C13, electric capacity C16, dual operational amplifier, first
Diode D4 and the second diode D6；
One end of the resistance R11 is connected with the PWM output circuits, the other end of the resistance R11 respectively with the electricity
Resistance R26 is connected with one end of the resistance R16, the other end of the resistance R16 respectively with the resistance R28 and the resistance
R19 one end is connected, the other end of resistance R19 ground connection, the other end of the resistance R26 respectively with the one or two pole
Pipe D4 one end, 3 pin of the dual operational amplifier are connected with one end of the electric capacity C12, the resistance R28 other ends point
One end not with one end of the second diode D6,5 pin of the dual operational amplifier and the electric capacity C13 is connected, institute
The other end and the other end of the electric capacity C13 for stating electric capacity C12 be connected to be formed common point ground connection, the first diode D4
The other end be connected respectively with 2 pin of the dual operational amplifier and one end of the resistance R25, the resistance R25's is another
The one end of one end respectively with the resistance R9 and the resistance R15 is connected, the other end and positive supply voltage of the resistance R9
It is connected, the other end of the second diode D6 6 pin respectively with the dual operational amplifier and one end of the resistance R29
It is connected, the other end of the resistance R29 is connected with the other end of the resistance R15 and one end of the resistance R18 respectively,
The other end ground connection of the resistance R18,4 pin of the dual operational amplifier are grounded by the resistance R27, and described pair of computing is put
8 pin of big device are connected by the resistance R22 with the positive supply voltage, 1 pin of the dual operational amplifier respectively with institute
One end that analog switching circuit is stated with the electric capacity C11 is connected, and 7 pin of the dual operational amplifier are opened with the simulation respectively
Powered-down road is connected with one end of the electric capacity C16, and the electric capacity C16 and the electric capacity C11 other end are grounded.
7. alternating-current charging pile according to claim 1 controls the expanded circuit of guidance circuit, it is characterised in that the simulation
On-off circuit includes analog switch chip, and 1 pin, 2 pin, 3 pin, 4 pin, 5 pin of the analog switch chip are grounded, the simulation
6 pin, 7 pin and the 8 pin analogue grounds of switch chip, 9 pin and 10 pin of the analog switch chip are electric with the comparator respectively
1 pin and 7 pin of double computing comparators on road are connected, and 11 pin, 12 pin, 14 pin and 15 pin of the analog switch chip are and institute
State impedance inverter circuit to be connected, 13 pin of the analog switch chip are connected with the former control guidance circuit and input institute
The first PMW ripples are stated, 16 pin of the analog switch chip are connected with positive supply voltage.
8. alternating-current charging pile according to claim 1 controls the expanded circuit of guidance circuit, it is characterised in that the impedance
Translation circuit includes resistance R10, resistance R12, resistance R14, resistance R17 and triode Q3；
One end of the resistance R10 is connected with 11 pin of analog switch chip, and one end of the resistance R12 and the simulation are opened
14 pin for closing chip are connected, and one end of the resistance R14 is connected with 15 pin of the analog switch chip, the resistance
R17 is connected with 12 pin of the analog switch chip, the resistance R10, the resistance R12, the resistance R14 and the electricity
Hinder base stage of the R17 other end with the triode Q3 to be connected, the grounded emitter of the triode Q3, the triode
Q3 colelctor electrode is connected with 2 pin of the photoelectrical coupler T1 in the PWM output circuits.
9. alternating-current charging pile according to claim 4 controls the expanded circuit of guidance circuit, it is characterised in that the negative electricity
Source generating circuit also includes resistance R2, electric capacity C2, electric capacity C3 and light emitting diode；
The electric capacity C2, the electric capacity C3 and the resistance R2 one end ground connection, the other end of the resistance R2 light with described
The anode of diode is connected, and the negative electrode of the light emitting diode is another with the electric capacity C2 other ends, the electric capacity C3 respectively
End is connected with the negative supply voltage.
10. a kind of alternating-current charging pile controls the expanding unit of guidance circuit, it is characterised in that will including such as claim 1- rights
The alternating-current charging pile described in 9 is asked to control the expanded circuit of guidance circuit, in addition to connector, the connector is used for negative supply
The supply voltage of the former control guidance circuit of circuit input.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710311175.8A CN107069878B (en) | 2017-05-04 | 2017-05-04 | Expansion circuit and device for controlling guide circuit of alternating-current charging pile |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710311175.8A CN107069878B (en) | 2017-05-04 | 2017-05-04 | Expansion circuit and device for controlling guide circuit of alternating-current charging pile |
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| CN107069878A true CN107069878A (en) | 2017-08-18 |
| CN107069878B CN107069878B (en) | 2020-03-17 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108237945A (en) * | 2018-03-15 | 2018-07-03 | 重庆国翰能源发展有限公司 | A kind of alternating-current charging pile, electric vehicle information interaction system |
| CN108275029A (en) * | 2018-03-15 | 2018-07-13 | 重庆国翰能源发展有限公司 | A kind of alternating-current charging pile of charge information interaction |
| CN108556650A (en) * | 2018-03-15 | 2018-09-21 | 重庆国翰能源发展有限公司 | A kind of charging system of electric powercar of enhancement information interaction |
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| CN102820686A (en) * | 2012-07-31 | 2012-12-12 | 华立仪表集团股份有限公司 | Charging control guidance module for alternating-current charge spot of electric vehicle and guidance method of charging control guidance module |
| CN205681146U (en) * | 2016-05-24 | 2016-11-09 | 南京国高电气自动化有限公司 | Isolated form charging electric vehicle controls guidance circuit |
| JP2017079537A (en) * | 2015-10-20 | 2017-04-27 | トヨタ自動車株式会社 | Conversion adapter |
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| CN102820686A (en) * | 2012-07-31 | 2012-12-12 | 华立仪表集团股份有限公司 | Charging control guidance module for alternating-current charge spot of electric vehicle and guidance method of charging control guidance module |
| JP2017079537A (en) * | 2015-10-20 | 2017-04-27 | トヨタ自動車株式会社 | Conversion adapter |
| CN205681146U (en) * | 2016-05-24 | 2016-11-09 | 南京国高电气自动化有限公司 | Isolated form charging electric vehicle controls guidance circuit |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108237945A (en) * | 2018-03-15 | 2018-07-03 | 重庆国翰能源发展有限公司 | A kind of alternating-current charging pile, electric vehicle information interaction system |
| CN108275029A (en) * | 2018-03-15 | 2018-07-13 | 重庆国翰能源发展有限公司 | A kind of alternating-current charging pile of charge information interaction |
| CN108556650A (en) * | 2018-03-15 | 2018-09-21 | 重庆国翰能源发展有限公司 | A kind of charging system of electric powercar of enhancement information interaction |
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| Publication number | Publication date |
|---|---|
| CN107069878B (en) | 2020-03-17 |
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Address after: No.39 longhui Road, Wujin national high tech Industrial Development Zone, Wujin District, Changzhou City, Jiangsu Province Applicant after: Jiangsu million Bangde and new energy Polytron Technologies Inc Address before: 213100 Jiangsu province Changzhou city Wujin high tech Zone Dragon Road No. 9 Applicant before: JAINGSU WANBANG DEHE NEW ENERGY TECHNOLOGY CO., LTD. |
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Address after: 213000 No.39 longhui Road, Wujin national high tech Industrial Development Zone, Wujin District, Changzhou City, Jiangsu Province Patentee after: Wanbang Digital Energy Co., Ltd Address before: 213000 No.39 longhui Road, Wujin national high tech Industrial Development Zone, Wujin District, Changzhou City, Jiangsu Province Patentee before: JIANGSU WANBANG DEHE NEW ENERGY TECHNOLOGY Co.,Ltd. |