CN208452807U - A kind of charge-discharge circuit of integrated bi-directional OBC and two-way DC/DC converter - Google Patents
A kind of charge-discharge circuit of integrated bi-directional OBC and two-way DC/DC converter Download PDFInfo
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- CN208452807U CN208452807U CN201820865084.9U CN201820865084U CN208452807U CN 208452807 U CN208452807 U CN 208452807U CN 201820865084 U CN201820865084 U CN 201820865084U CN 208452807 U CN208452807 U CN 208452807U
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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
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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
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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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
- Y02T10/72—Electric energy management in electromobility
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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
- 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
- Y02T90/14—Plug-in electric vehicles
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses the charge-discharge circuits of a kind of integrated bi-directional OBC and two-way DC/DC converter, for realizing external power supply, the energy storage component of electric vehicle, energy flow between electric vehicle load and electric vehicle energy feedback income end, the charge-discharge circuit includes two-way OBC circuit unit and two-way DC/DC converter circuit unit, the two-way OBC circuit unit is electrically connected with two-way DC/DC converter circuit unit, the OBC circuit unit is for connecting external power supply and electric vehicle energy storage component, the two-way DC/DC converter circuit unit is also electrically connected with electric vehicle load and electric vehicle energy feedback input terminal, the two-way OBC circuit unit is for realizing two-way OBC function, the two-way DC/DC converter circuit unit is for realizing two-way DC/DC converter Function.
Description
Technical field
The utility model relates to electric vehicle engineering fields more particularly to a kind of integrated bi-directional OBC and two-way DC/DC to convert
The control circuit of the charge-discharge circuit of device and the charge-discharge circuit.
Background technique
With advances in technology, electric car has become the developing direction of future automobile, and vehicle electronic device has been in small
Type, integrated, high power density trend, especially vehicle-mounted OBC (Vehicular charger) and vehicle-mounted DC/DC direct current transducer,
As the electric energy Switching Core component of entire electric car, urgent need miniaturization, Highgrade integration.It is currently used vehicle-mounted to fill
Motor and vehicle-mounted DC/DC direct current transducer be all it is discrete, at high cost, occupied space is big, is phased out, is occurred therewith
Be a kind of Vehicular charger and vehicle-mounted DC/DC direct current transducer physical integration scheme, the program saves section structural
With port wiring, but it is still to a large amount of electrical component, it is at high cost, the big integration degree of volume is lower, it is not able to satisfy real multiplicity
The demand of change.
Utility model content
Based on this, to solve the above-mentioned technical problem in traditional technology, spy proposes a kind of integrated bi-directional OBC and two-way
The charge-discharge circuit of DC/DC converter.
A kind of charge-discharge circuit of integrated bi-directional OBC and two-way DC/DC converter, for realizing external power supply, electric vehicle
Energy storage component, the energy flow between electric vehicle load and electric vehicle energy feedback income end, which includes
Two-way OBC circuit unit and two-way DC/DC converter circuit unit, the two-way OBC circuit unit and two-way DC/DC are converted
The electrical connection of device circuit unit, the OBC circuit unit is for connecting external power supply and electric vehicle energy storage component, the two-way DC/
DC converter circuit unit is also electrically connected with electric vehicle load and electric vehicle energy feedback input terminal, the two-way OBC circuit
Unit is for realizing two-way OBC function, and the two-way DC/DC converter circuit unit is for realizing two-way DC/DC converter function
Energy.
Further, the two-way DC/DC converter circuit unit includes DC/DC rectification circuit, the DC/DC rectification
Circuit with the two-way OBC circuit unit is two-way is electrically connected, the DC/DC rectification circuit and electric vehicle load and/or feedback are defeated
Enter and holds two-way electrical connection.
Further, the two-way DC/DC converter circuit unit includes third filter circuit, the DC/DC rectification
Circuit, which is loaded by the third filter circuit with the electric vehicle, and/or feedback input terminal is two-way is electrically connected.
Further, the OBC circuit unit includes DC/DC conversion circuit, the DC/DC conversion circuit with it is described
The two-way electrical connection of DC/DC rectification circuit.
Further, the OBC circuit unit includes rectification/inverter circuit, the second filter circuit, and the DC/DC turns
Change that circuit passes sequentially through the rectification/inverter circuit, the second filter circuit and the electric vehicle energy storage component is two-way is electrically connected.
Further, the OBC circuit unit includes switching circuit, the switching circuit and DC/DC conversion electricity
The two-way electrical connection in road.
Further, the OBC circuit unit includes power factor (PF) calibration circuit, the power factor (PF) calibration circuit electricity
It is connected between external power supply and the switching circuit, for being born when external power supply to electric vehicle energy storage component and/or electric vehicle
When carrying power supply, power factor (PF) calibration is carried out to the power of external power supply output.
Further, the OBC circuit unit further includes the first filter circuit, the first rectification circuit, the external electrical
Road successively with first filter circuit, the first rectification circuit is two-way is electrically connected, when external power supply gives electric vehicle energy storage to described
When component and/or electric vehicle load supplying, first rectification circuit is electrically connected with power factor (PF) calibration circuit, when described
When electric vehicle energy storage component feedback energy gives the external power supply, first rectification circuit is electrically connected with the switching circuit.
Still further aspect, the utility model also proposed a kind of for integrated bi-directional OBC and two-way DC/DC converter
The control circuit of charge-discharge circuit.
A kind of control circuit for the charge-discharge circuit to integrated bi-directional OBC and two-way DC/DC converter, including control
Unit, input signal unit, signal output unit, the input signal unit, signal output unit are and described control unit
Electrical connection, according to the signal that the input signal unit inputs, described control unit exports corresponding control signal to charge and discharge
Circuit realizes the energy between external power supply, the energy storage component of electric vehicle, electric vehicle load and electric vehicle energy feedback income end
Amount flowing.
Further, the input signal unit includes voltage sampling unit and/or current sampling unit, the voltage
Sampling unit, current sampling unit are electrically connected with the control unit.
Implement the utility model embodiment, will have the following beneficial effects:
The utility model proposes the novel integrated bi-directional DC/DC converter and vehicle-mounted bidirectional charger circuit of one kind and its
Control loop, two-way DC/DC converter and two-way Vehicular charger is done electrical integrated, realizes exchange input side power grid and straight
Stream input side determine Two-way energy transfer between power battery and power battery and low-voltage load and feedback electric energy and is born by low pressure
The bi-directional of the energy between interface and power battery is carried, machine volume substantially reduces, and cost is substantially reduced, and function is more reinforced
Greatly, reliability is further promoted.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Wherein:
Fig. 1 is the charging structure block diagram of the electric car of the prior art；
Fig. 2 is the structural block diagram of the Bidirectional charging-discharging circuit of the utility model；
Fig. 3 is the circuit diagram of the two-way charging electricity of the utility model；
Fig. 4 is the structural block diagram of the control circuit of the utility model.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1 is the charging circuit diagram of electric car in the prior art, and alternating current input passes through EMC filter circuit, single-phase rectifier
Circuit, PFC power factor correction circuit, OBC input side switching circuit enter OBC main transformer, then pass through OBC outlet side rectified current
Road, OBC output filter circuit transfer energy to power battery pack, realize that city supplies electricity to the charging of electric automobile power battery group；
Energy is passed to DC/DC main transformer by DC/DC input side EMC filter circuit, DC/DC input side switching circuit by power battery pack
Depressor, and transmitted energy by DC/DC outlet side rectification circuit, DC/DC outlet side filter circuit by DC/DC main transformer
To low-voltage load and low tension battery, to realize that electric automobile power battery charges to low-voltage load.As it can be seen that in the prior art
The charging modes of electric car are single, can only realize external power supply to electric automobile power battery charging, power battery is to electronic
Vehicle load charging.
Fig. 2 is the structural block diagram of the integrated bi-directional OBC of the utility model and the charge-discharge circuit of two-way DC/DC converter,
The charge-discharge circuit includes OBC circuit unit and DC/DC converter circuit unit, OBC circuit unit and DC/DC converter circuit
The two-way electrical connection of unit, external power supply are electrically connected by OBC circuit unit with energy storage component, DC/DC converter circuit unit and
Electric vehicle load and/or feedback input terminal are bi-directionally connected, and DC/DC converter circuit unit includes that the second rectification circuit and third are filtered
Wave circuit, second rectification circuit and third filter circuit electrical connection, third filter circuit and electric vehicle load and/or
Feedback input terminal is bi-directionally connected.OBC circuit unit include the first filter circuit, the first rectification circuit, power factor correction circuit,
Switching circuit, DC/DC converter, rectification/inverter circuit, the second filter circuit, the first filter circuit and the first rectification circuit are double
To connection, the first rectification circuit is electrically connected with power factor correction circuit, and power factor correction circuit is electrically connected with switching circuit,
Switching circuit is electrically connected with DC/DC converter circuit, DC/DC converter circuit with rectification/inverter circuit is two-way is electrically connected, it is whole
Stream/inverter circuit is bi-directionally connected with the second filter circuit, and the second filter circuit is electrically connected with electric vehicle energy storage component, and DC/DC turns
Parallel operation is bi-directionally connected with the second rectification circuit.
Wherein, external power supply is any device that can supply alternating current, such as power grid.
Wherein, first filter circuit is EMC filter circuit, more specifically, can be string mould inductive circuit, common mode electricity
The combination of inductive circuit or both.
Wherein, first rectification circuit is single phase rectifier circuit.
Wherein, the DC/DC converter is DC/DC main transformer.
Wherein, second filter circuit is that can be capacitor filter or LC filter circuit.
Wherein, the second rectification circuit can be DC/DC output rectification circuit.
Wherein, third filter circuit is capacitor filter or LC filter circuit.
Electric vehicle energy storage component is power battery, more specifically, be chargeable secondary cell, such as: lithium battery.
Electric vehicle load is generally the low-voltage load of electric vehicle comprising music player, light dress on electric vehicle
It sets, when feedback input terminal specifically can be brake of electric vehicle, after converting kinetic energy into electric energy, the output end of electric energy.
By the charge-discharge circuit, 4 kinds of energy flow modes may be implemented, respectively external power supply is to energy storage component and electricity
The low-voltage load of motor-car is powered；Two, energy storage component feedback energy is to external power supply；Three, energy storage component gives electric vehicle load supplying；
Four, feedback input terminal charges to energy storage component.The charging in many ways of electric vehicle may be implemented, by the charging circuit convenient for full
The sufficient market demand.
Fig. 3 is the circuit diagram of the charge-discharge circuit of the utility model, which includes transformer T1, the first relay
RLY1, the first metal-oxide-semiconductor Q1, the second metal-oxide-semiconductor Q2, third metal-oxide-semiconductor Q3, the 4th metal-oxide-semiconductor Q4, the 5th metal-oxide-semiconductor Q5, the 6th metal-oxide-semiconductor Q6,
7th metal-oxide-semiconductor Q7, the 8th metal-oxide-semiconductor Q8, the 9th metal-oxide-semiconductor Q9, the tenth metal-oxide-semiconductor Q10, the 11st metal-oxide-semiconductor Q11, the 12nd metal-oxide-semiconductor
Q12, first capacitor C1, the second capacitor C2, third capacitor C3, the 4th capacitor COUT1, the 5th capacitor COUT2, capacitor CIN, first
Inductance L1, the second inductance L2, third inductance L3, transformer T1 include primary side winding and the first vice-side winding and the second breadths around
Group, primary side winding are mains electricity input end, the energy storage component of the first breadths winding output connection electric vehicle, the output of the second breadths winding
The low-voltage load of electric vehicle is connected, the source electrode of the first metal-oxide-semiconductor Q1 is connect with the drain electrode of the second metal-oxide-semiconductor Q2, the leakage of the first metal-oxide-semiconductor Q1
Pole is connect by capacitor CIN with the source electrode of the second metal-oxide-semiconductor Q2, and the drain electrode of the source electrode and the 4th metal-oxide-semiconductor Q4 of third metal-oxide-semiconductor Q3 connects
It connects, the drain electrode of third metal-oxide-semiconductor Q3 is connect with the drain electrode of the 4th metal-oxide-semiconductor Q4, and one end of the transformer T1 primary winding passes sequentially through
First inductance L1, the first relay RLY1 are connect with the source electrode of the first metal-oxide-semiconductor Q1, the other end of the transformer T1 primary winding
It being connect by first capacitor C1 with the drain electrode of the 4th metal-oxide-semiconductor Q4, the source electrode of the 5th metal-oxide-semiconductor Q5 is connect with the 6th MOS drain electrode closed,
The source electrode of 7th metal-oxide-semiconductor Q7 is connect with the drain electrode of the 8th metal-oxide-semiconductor Q8, and one end of the transformer T1 secondary winding passes through the second inductance
L2 is connect with the source electrode of the 5th metal-oxide-semiconductor Q5, and other end is connect by the second capacitor C2 with the source electrode of the 7th metal-oxide-semiconductor Q7, described
The drain electrode of 5th metal-oxide-semiconductor Q5, the drain electrode of the 7th metal-oxide-semiconductor Q7 are connect with the anode of energy storage component, the leakage of the 6th metal-oxide-semiconductor Q6
The drain electrode of pole, the 8th metal-oxide-semiconductor Q8 is connect with the cathode of energy storage component, also parallel connection between the positive electrode and negative electrode of the energy storage component
It is connected with the 4th capacitor COUT1, the source electrode of the 9th metal-oxide-semiconductor Q9 is connect with the drain electrode of the tenth metal-oxide-semiconductor Q10, transformer T1 second
One end of vice-side winding connect by third inductance L3 with the source electrode of the 9th metal-oxide-semiconductor Q9, other end pass through third capacitor C3 and
The source electrode of 11st metal-oxide-semiconductor Q11 connects, and drain electrode, the drain electrode of the 11st metal-oxide-semiconductor Q11 of the 9th metal-oxide-semiconductor Q9 is negative with low pressure
The anode connection of load, the drain electrode of the 9th metal-oxide-semiconductor Q9, the drain electrode of the 11st metal-oxide-semiconductor Q11 connect with the cathode of low-voltage load
It connects, the 4th capacitor COUT2 is also connected in parallel between the positive electrode and negative electrode of the energy storage component.
Wherein, T1 is that Vehicular charger and DC/DC converter electrically integrate, and includes three windings, primary side winding is alternating current
Input side, the output connection automobile power cell group of vice-side winding 2, the output of vice-side winding 3 connect vehicle-mounted low-voltage load, and CIN is mother
The big electrolytic capacitor of line, Cout1 are power battery pack side electrolytic capacitor, and Cout2 is output vehicle-mounted low-voltage load side electrolytic capacitor,
Q1, Q2, Q3, Q4 are that CLLC input side switchs N-type MOSFET, and Q5, Q6, Q7, Q8 are power battery pack side full-bridge rectification N-type of publishing books
MOSFET, Q9, Q10, Q11, Q12 are that output low-voltage load side full-bridge rectification N-type MOSFET, RLY1 are electromagnetic relay；L1 is
Input side resonant inductance, C1 are input side resonant capacitance, and L2 is output power battery pack side resonant inductance, and C2 is output power electricity
Pond group side resonant capacitance.
Fig. 4 is the control circuit of the charge-discharge circuit of the utility model, which includes control unit, signal input list
Member, signal output unit, the signal input unit, signal output unit are electrically connected with the control unit, wherein described
Signal input unit includes voltage sampling unit and current sampling unit, specifically includes input voltage sample circuit, input electricity
Flow sample circuit, power battery voltage sampling circuit, power battery current sampling circuit, low-voltage load voltage sampling circuit, low
Press load current sample circuit.The output unit includes driving circuit, more specifically, including the first driving circuit, the second driving
Circuit, third driving circuit.
As shown, the control circuit includes control unit, the first isolation circuit, the second isolation circuit, third isolation electricity
Road, the 4th isolation circuit, the first driving circuit, the second driving circuit, third driving circuit, input voltage sample circuit, input
Current sampling circuit, power battery voltage sampling circuit, power battery current sampling circuit, low-voltage load voltage sampling circuit,
Low-voltage load current sampling circuit, the input current sample circuit is electrically connected with control unit by third isolation circuit, defeated
Enter voltage sampling circuit to be electrically connected with control unit by the 4th isolation circuit, control unit passes through the second isolation circuit, first
Driving circuit is connect with the input terminal of metal-oxide-semiconductor Q1, Q2, Q3, Q4, the power battery current sampling circuit, power battery voltage
Sample circuit, low-voltage load voltage sampling circuit, low-voltage load current sampling circuit are electrically connected with control unit, control unit
It is connect by the second driving circuit with the input terminal of metal-oxide-semiconductor Q5, Q6, Q7, Q8, control unit passes through third driving circuit and MOS
The input terminal of pipe Q9, Q10, Q11, Q12 connect.Wherein the control unit is MCU.
The control strategy of the control circuit are as follows:
1, when electric car is in charged state:
Relay RLY1 is closed at this time, inputs prime rectification circuit and 220V AC voltage is converted into stablizing by pfc circuit
DC voltage, the primary side winding of main transformer T1 is energy input side, and vice-side winding 2 and vice-side winding 3 are outlet side, Q1,
Q2, Q3, Q4 are that full-bridge is controlled to secondary side biography energy；Q5, Q6, Q7, Q8 are output synchronous rectification control, export Vout1 to power electric
The charging of pond group；Q9, Q10, Q11, Q12 are synchronous rectification control, and output voltage Vout2 powers to vehicle-mounted low-voltage load, by upper
The method of stating realizes Vehicular charger function.
2, power battery pack is powered to low-voltage load
Relay RLY1 is disconnected at this time, and primary side winding 1 be in open-circuit condition, and vice-side winding 2 is energy input side, secondary side around
Group 3 is outlet side, closes Q1, Q2, Q3, Q4 driving, is in primary side and is fully disconnected state；Q5, Q6, Q7, Q8 are input at this time
The switching tube of full-bridge LLC control, automobile power cell group are in discharge condition, and Q9, Q10, Q11, Q12 are exported by synchronous rectification
Stable voltage Vout2 powers to vehicle-mounted low-voltage load, to realize the function of vehicle-mounted DC/DC converter.
3, automobile power cell group energy-feedback power grid
Relay RLY1 is closed at this time, and primary side winding 1 is energy-feedback power grid outlet side, and vice-side winding 2 is power battery
Group energy input side, secondary side are wound on as vehicle-mounted low-voltage load side, and Q5, Q6, Q7, Q8 be the switching tube for inputting full-bridge CLLC and controlling,
Power battery pack is in discharge condition, by energy-feedback power grid；Q1, Q2, Q3, Q4 are full-bridge synchronous rectification control, output control
Export busbar voltage VIN；At this point, Q9, Q10, Q11, Q12 are in an off state, this process is by the energy feedback of power battery pack
Power grid, working condition 1 and working condition 3 realize bidirectional charger function.
4, feedback energy gives automobile power cell group power supply state
Relay RLY1 is disconnected at this time, and primary side winding 1 be in open-circuit condition, and vice-side winding 3 is energy input side, secondary side around
Group 2 is outlet side.Q1, Q2, Q3, Q4 driving are closed, primary side is in and is fully disconnected state, at this point, Q9, Q10, Q11, Q12 are
Input full-bridge LLC control to vice-side winding 2 pass can, the energy generated when by automobile brake is to power battery charging；Q5,Q6,Q7,
Q8 exports stable voltage Vout1 by synchronous rectification, powers to automobile power cell group, and working condition 2 and working condition 4 are real
Two-way DC/DC conversion function is showed.
The utility model proposes the novel integrated bi-directional DC/DC converter and vehicle-mounted bidirectional charger circuit of one kind and its
Control loop, two-way DC/DC converter and two-way Vehicular charger is done electrical integrated, realizes exchange input side power grid and straight
Stream input side determine Two-way energy transfer between power battery and power battery and low-voltage load and feedback electric energy and is born by low pressure
The bi-directional of the energy between interface and power battery is carried, machine volume substantially reduces, and cost is substantially reduced, and function is more reinforced
Greatly, reliability is further promoted.
Above disclosures are merely preferred embodiments of the utility model, the utility model cannot be limited with this certainly
Interest field, therefore equivalent variations made according to the claim of the utility model still fall within the scope of the utility model.
Claims (10)
1. the charge-discharge circuit of a kind of integrated bi-directional OBC and two-way DC/DC converter, for realizing external power supply, electric vehicle
Energy flow between energy storage component, electric vehicle load and electric vehicle energy feedback income end, which includes double
To OBC circuit unit and two-way DC/DC converter circuit unit, the two-way OBC circuit unit and two-way DC/DC converter
Circuit unit electrical connection, the OBC circuit unit is for connecting external power supply and electric vehicle energy storage component, the two-way DC/DC
Converter circuit unit is also electrically connected with electric vehicle load and electric vehicle energy feedback input terminal, the two-way OBC circuit list
Member is for realizing two-way OBC function, and the two-way DC/DC converter circuit unit is for realizing two-way DC/DC converter function.
2. a kind of charge-discharge circuit of integrated bi-directional OBC and two-way DC/DC converter as described in claim 1, feature exist
In: the two-way DC/DC converter circuit unit includes DC/DC rectification circuit, the DC/DC rectification circuit with it is described two-way
The two-way electrical connection of OBC circuit unit, the DC/DC rectification circuit is loaded with electric vehicle and/or feedback input terminal is two-way is electrically connected.
3. a kind of charge-discharge circuit of integrated bi-directional OBC and two-way DC/DC converter as claimed in claim 2, feature exist
In: the two-way DC/DC converter circuit unit includes third filter circuit, and the DC/DC rectification circuit passes through the third
Filter circuit is loaded with the electric vehicle and/or feedback input terminal is two-way is electrically connected.
4. a kind of charge-discharge circuit of integrated bi-directional OBC and two-way DC/DC converter as claimed in claim 2, feature exist
In: the OBC circuit unit includes DC/DC conversion circuit, and the DC/DC conversion circuit and the DC/DC rectification circuit are two-way
Electrical connection.
5. a kind of charge-discharge circuit of integrated bi-directional OBC and two-way DC/DC converter as claimed in claim 4, feature exist
In: the OBC circuit unit includes rectification/inverter circuit, the second filter circuit, and the DC/DC conversion circuit passes sequentially through institute
It states rectification/inverter circuit, the second filter circuit and the electric vehicle energy storage component is two-way is electrically connected.
6. a kind of charge-discharge circuit of integrated bi-directional OBC and two-way DC/DC converter as claimed in claim 5, feature exist
In: the OBC circuit unit includes switching circuit, the switching circuit with the DC/DC conversion circuit is two-way is electrically connected.
7. a kind of charge-discharge circuit of integrated bi-directional OBC and two-way DC/DC converter as claimed in claim 6, feature exist
In: the OBC circuit unit include power factor (PF) calibration circuit, the power factor (PF) calibration circuit be electrically connected to external power supply with
Between the switching circuit, it is used for when external power supply is to electric vehicle energy storage component and/or electric vehicle load supplying, to external electrical
The power of source output carries out power factor (PF) calibration.
8. a kind of charge-discharge circuit of integrated bi-directional OBC and two-way DC/DC converter as claimed in claim 7, feature exist
It further include the first filter circuit, the first rectification circuit in: the OBC circuit unit, the external circuit is successively with described first
Filter circuit, the two-way electrical connection of the first rectification circuit, when external power supply is to described negative to electric vehicle energy storage component and/or electric vehicle
When carrying power supply, first rectification circuit is electrically connected with power factor (PF) calibration circuit, when the electric vehicle energy storage component returns
When energy regenerative amount gives the external power supply, first rectification circuit is electrically connected with the switching circuit.
9. a kind of for a kind of described in any item charge and discharges of integrated bi-directional OBC and two-way DC/DC converter of claim 1-8
The control circuit of circuit, it is characterised in that: the control circuit includes control unit, input signal unit, signal output unit,
The input signal unit, signal output unit are electrically connected with the control unit, and are inputted according to the input signal unit
Signal, described control unit exports the energy storage part that corresponding control signal realizes external power supply, electric vehicle to charge-discharge circuit
Energy flow between part, electric vehicle load and electric vehicle energy feedback income end.
10. the control electricity of the charge-discharge circuit of a kind of integrated bi-directional OBC as claimed in claim 9 and two-way DC/DC converter
Road, it is characterised in that: the input signal unit includes voltage sampling unit and/or current sampling unit, the voltage sample
Unit, current sampling unit are electrically connected with the control unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820865084.9U CN208452807U (en) | 2018-05-29 | 2018-05-29 | A kind of charge-discharge circuit of integrated bi-directional OBC and two-way DC/DC converter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820865084.9U CN208452807U (en) | 2018-05-29 | 2018-05-29 | A kind of charge-discharge circuit of integrated bi-directional OBC and two-way DC/DC converter |
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| CN208452807U true CN208452807U (en) | 2019-02-01 |
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| CN201820865084.9U Active CN208452807U (en) | 2018-05-29 | 2018-05-29 | A kind of charge-discharge circuit of integrated bi-directional OBC and two-way DC/DC converter |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109995253A (en) * | 2019-04-26 | 2019-07-09 | 深圳市首航通信股份有限公司 | A kind of power circuit and new-energy automobile |
| CN110417100A (en) * | 2019-07-31 | 2019-11-05 | 苏州博沃创新能源科技有限公司 | A kind of Vehicular charger functional safety framework control circuit and control method |
| CN112350392A (en) * | 2019-08-09 | 2021-02-09 | 比亚迪股份有限公司 | Electric automobile, vehicle-mounted power supply system and discharge control method thereof |
| CN112737344A (en) * | 2020-12-29 | 2021-04-30 | 联合汽车电子有限公司 | Battery charging circuit |
| CN113071436A (en) * | 2021-04-20 | 2021-07-06 | 西华大学 | Seven-in-one high-voltage integrated system circuit structure of electric automobile and working method thereof |
| WO2021243994A1 (en) * | 2020-06-01 | 2021-12-09 | 深圳威迈斯新能源股份有限公司 | Charging power source circuit and control method therefor |
| CN116231705A (en) * | 2022-12-30 | 2023-06-06 | 苏州博沃创新能源科技有限公司 | 20kW bidirectional single-phase/three-phase compatible electric automobile off-vehicle direct current charging module |
| CN116231703A (en) * | 2022-12-30 | 2023-06-06 | 苏州博沃创新能源科技有限公司 | 11kW bidirectional single-phase/three-phase compatible electric automobile off-vehicle direct current charging module |
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2018
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109995253A (en) * | 2019-04-26 | 2019-07-09 | 深圳市首航通信股份有限公司 | A kind of power circuit and new-energy automobile |
| CN110417100A (en) * | 2019-07-31 | 2019-11-05 | 苏州博沃创新能源科技有限公司 | A kind of Vehicular charger functional safety framework control circuit and control method |
| CN112350392A (en) * | 2019-08-09 | 2021-02-09 | 比亚迪股份有限公司 | Electric automobile, vehicle-mounted power supply system and discharge control method thereof |
| WO2021243994A1 (en) * | 2020-06-01 | 2021-12-09 | 深圳威迈斯新能源股份有限公司 | Charging power source circuit and control method therefor |
| CN112737344A (en) * | 2020-12-29 | 2021-04-30 | 联合汽车电子有限公司 | Battery charging circuit |
| CN113071436A (en) * | 2021-04-20 | 2021-07-06 | 西华大学 | Seven-in-one high-voltage integrated system circuit structure of electric automobile and working method thereof |
| CN113071436B (en) * | 2021-04-20 | 2023-05-09 | 西华大学 | Seven-in-one high-voltage integrated system circuit structure of electric automobile and working method thereof |
| CN116231705A (en) * | 2022-12-30 | 2023-06-06 | 苏州博沃创新能源科技有限公司 | 20kW bidirectional single-phase/three-phase compatible electric automobile off-vehicle direct current charging module |
| CN116231703A (en) * | 2022-12-30 | 2023-06-06 | 苏州博沃创新能源科技有限公司 | 11kW bidirectional single-phase/three-phase compatible electric automobile off-vehicle direct current charging module |
| CN116231705B (en) * | 2022-12-30 | 2024-02-20 | 苏州博沃创新能源科技有限公司 | 20kW bidirectional single-phase/three-phase compatible electric automobile off-vehicle direct current charging module |
| CN116231703B (en) * | 2022-12-30 | 2024-03-01 | 苏州博沃创新能源科技有限公司 | 11kW bidirectional single-phase/three-phase compatible electric automobile off-vehicle direct current charging module |
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