CN110481379A - Stable type intelligent charging machine - Google Patents

Stable type intelligent charging machine Download PDF

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Publication number
CN110481379A
CN110481379A CN201910401547.5A CN201910401547A CN110481379A CN 110481379 A CN110481379 A CN 110481379A CN 201910401547 A CN201910401547 A CN 201910401547A CN 110481379 A CN110481379 A CN 110481379A
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CN
China
Prior art keywords
line
power supply
charging
voltage
bus
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CN201910401547.5A
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Chinese (zh)
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CN110481379B (en
Inventor
孙义学
丁剑
乔国锋
袁华明
黄加虎
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SUZHOU INDUSTRIAL PARK HESHUN ELECTRICAL CO LTD
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SUZHOU INDUSTRIAL PARK HESHUN ELECTRICAL CO LTD
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Publication of CN110481379A publication Critical patent/CN110481379A/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION 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
    • B60L3/00Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/0023Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION 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
    • B60L50/00Electric propulsion with power supplied within the vehicle
    • B60L50/40Electric propulsion with power supplied within the vehicle using propulsion power supplied by capacitors
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION 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
    • B60L50/00Electric propulsion with power supplied within the vehicle
    • B60L50/50Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • B60L50/64Constructional details of batteries specially adapted for electric vehicles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION 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
    • B60L53/00Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/60Monitoring or controlling charging stations
    • B60L53/66Data transfer between charging stations and vehicles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION 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
    • B60L58/00Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/12Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/70Energy storage systems for electromobility, e.g. batteries
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10Technologies relating to charging of electric vehicles
    • Y02T90/12Electric charging stations
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10Technologies relating to charging of electric vehicles
    • Y02T90/16Information or communication technologies improving the operation of electric vehicles

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The present invention discloses a kind of stable type intelligent charging machine, including breaker, power supply device, D.C. contactor, for connecting the charging positive terminal and charging negative pole end of charging gun, the A1 line, an AC ammeter is separately installed on B1 line and C1 line, a DC meter is installed in negative bus between the charging negative pole end and D.C. contactor, bridging has a control loop between the A1 line and N1 line, control loop is according to the voltage and current value from voltage sampling unit and current sampling unit, control power supply device, also bridging has a detection device between the positive bus and negative bus, the detection device further comprises power supply, with the concatenated relay of power supply, voltage sample device and control unit, described control unit is according to the voltage value from voltage sample device, control the on-off of relay.The invention avoids the capacitor of power module and automobile batteries direct the case where causing dash current excessive and generating failure in parallel, the safety and stability to automobile charging ensure that.

Description

Stable type intelligent charging machine
Technical field
The present invention relates to a kind of charging device of electric automobile, in particular to a kind of stable type intelligent charging machine belongs to electronic Automobile charging field.
Background technique
Auto industry is to be only second to the second largest industry of petrochemical industry in the world, currently, most of automobile is all with gasoline, bavin Oil is fuel, not only consumes a large amount of petroleum resources, but also nitrogen oxides, hydrocarbons contained in vehicle exhaust, an oxygen Change carbon etc. and causes the serious pollution of atmosphere.In order to keep the sustainable development of national economy, human residential environment and Bao are protected Hinder energy resource supply, countries in the world government puts into the various approach that a large amount of human and material resources are sought to solve these problems one after another.
Since the battery of electric car is voltage source, charger is to provide another voltage to charge the battery, and two-way is not It is generally not directly connected together with voltage source, in order to avoid there is the phenomenon that due to the different appearance short circuit of voltage or overcurrent.
Summary of the invention
It is an object of the present invention to provide a kind of stable type intelligent charging machine, which avoids power module Capacitor and automobile batteries direct the case where causing dash current excessive and generating failure in parallel, ensure that automobile charging Safety and stability.
In order to achieve the above objectives, the technical solution adopted by the present invention is that: a kind of stable type intelligent charging machine, including one end connect It is connected to the breaker of the A line of power grid, B line, C line and N line, power supply device, D.C. contactor, the charging for connecting charging gun just Extreme and charging negative pole end, the other end of the breaker have been correspondingly connected with A1 line, B1 line, C1 line and N1 line, the power supply dress The ac input end set is connected to A1 line, B1 line and C1 line, and the cathode output end and charging positive terminal of this power supply device are by just The cathode output end of the connection of pole bus, the power supply device is connect with charging negative pole end by negative bus, the positive bus With the D.C. contactor is provided in negative bus;
The power supply device includes several power modules in parallel, and the cathode output end and anode of each power module are total Line connection, the cathode output end of each power module are connect with negative bus, this power module further comprises that exchange is defeated Enter module, direct current output module and the AC/DC conversion module between exchange input module, direct current output module, it is described straight It is parallel with a capacitor on stream output module, and it is reversed that one is connected between the positive terminal and positive bus of this direct current output module Diode;
An AC ammeter is separately installed on the A1 line, B1 line and C1 line, between charging negative pole end and the D.C. contactor Negative bus on a DC meter is installed;
Bridging has a control loop between the A1 line and N1 line, and the control terminal connection of this control loop and power supply device is used for Control the timing of start and stop, the charging of power supply device and the size of power supply device output voltage electric current, the positive bus and cathode Bridging has a voltage sampling unit and a current sampling unit between bus, and the control loop is according to from voltage sampling unit With the voltage and current value of current sampling unit, power supply device is controlled;
Also bridging has a detection device between the positive bus and negative bus, this detection device is located at power supply device and direct current Between contactor, the detection device further comprises that power supply and the concatenated relay of power supply, voltage sample device and control are single The control terminal of member, described control unit and relay connects, and for controlling the on-off of relay, the voltage sample device is for adopting Collect the voltage value between positive bus and negative bus, described control unit is according to the voltage value from voltage sample device, control The on-off of relay.
Further improved scheme is as follows in above-mentioned technical proposal:
1. in above scheme, the number of several power modules in parallel is 8.
2. in above scheme, being equipped with a fusible core in the positive bus between the D.C. contactor and charging positive terminal.
3. in above scheme, the AC ammeter is used to use to power supply bureau's charging.
4. in above scheme, the DC meter is for giving charging vehicle analytic accounting expense.
Since above-mentioned technical proposal is used, the present invention has following advantages and effect compared with prior art:
1. stable type intelligent charging machine of the present invention uses several power module parallel connections for the mode of power supply device, realizes confession The classification of voltage is adjustable when electric, is charged with being suitable for different types of automobile;In addition, the positive terminal of its direct current output module with It is connected with a backward dioded between positive bus, the setting of backward dioded can effectively prevent filling or dash current It generates, protects circuit.
2. stable type intelligent charging machine of the present invention, an AC ammeter, institute are separately installed on A1 line, B1 line and C1 line It states and a DC meter is installed in the negative bus between charging negative pole end and D.C. contactor, pass through AC ammeter and direct current The combination settings of table are respectively used to carry out charging to power supply bureau and using the user car owner of charger, ensure that Alternating Current Power Supply end With the precision and accuracy of the respective charging in DC charging end;In addition, bridging has a control loop between its A1 line and N1 line, this control The control terminal of circuit processed and power supply device connection, for controlling the timing and power supply device output of start and stop, the charging of power supply device The size of voltage and current, bridging has a voltage sampling unit and a current sample list between the positive bus and negative bus Member, the control loop control power supply device according to the voltage and current value from voltage sampling unit and current sampling unit, The combination settings of electric current, voltage sampling unit and control loop, so that electric current, voltage that control loop is arrived according to real-time sampling Value adjusts the control to power supply device, guarantees the dynamic monitoring in charging process, to guarantee the safety of charging, stability With the precision of charging.
3. stable type intelligent charging machine of the present invention, also bridging has a detection device between positive bus and negative bus, Between power supply device and D.C. contactor, the detection device further comprises power supply, connects with power supply this detection device Relay, voltage sample device and control unit, the control terminal of described control unit and relay connects, for controlling relay On-off, the voltage sample device is used to acquire voltage value between positive bus and negative bus, described control unit according to Voltage value from voltage sample device, controls the on-off of relay, and the setting of detection device is right when charger is charged Power supply device carries out reverse charging and simultaneously detects its voltage, with this come judge power supply device power module kind backward dioded whether Damage, if damage stops charging and carries out malfunction elimination, the capacitor for avoiding power module is directly in parallel with automobile batteries The case where leading to that dash current is excessive and generating failure, ensure that the safety and stability to automobile charging.
Detailed description of the invention
Attached drawing 1 is stable type intelligent charging machine structural schematic diagram of the present invention;
Attached drawing 2 is power device structure schematic diagram in stable type intelligent charging machine of the present invention.
In the figures above: 1, breaker;2, power supply device;3, D.C. contactor;4, charge positive terminal;5, charge cathode End;6, A1 line;7, B1 line;8, C1 line;9, N1 line;10, positive bus;11, negative bus;12, power module;101, it exchanges defeated Enter module;102, AC/DC conversion module;103, direct current output module;104, capacitor;105, backward dioded;14, alternating current Table;15, DC meter;18, control loop;19, voltage sampling unit;20, current sampling unit;21, detection device;22, electric Source;23, relay;24, voltage sample device;25, control unit.
Specific embodiment
The present invention will be further described below with reference to examples:
Embodiment 1: a kind of stable type intelligent charging machine is connected to the breaker of the A line of power grid, B line, C line and N line including one end 1, power supply device 2, D.C. contactor 3, the charging positive terminal 4 for connecting charging gun and charging negative pole end 5, the breaker 1 The other end be correspondingly connected with A1 line 6, B1 line 7, C1 line 8 and N1 line 9, the ac input end of the power supply device 2 is connected to A1 The cathode output end of line 6, B1 line 7 and C1 line 8, this power supply device 2 is connect with charging positive terminal 4 by positive bus 10, described The cathode output end of power supply device 2 is connect with charging negative pole end 5 by negative bus 11, the positive bus 10 and negative bus The D.C. contactor 3 is provided on 11;
The power supply device 2 includes several power modules 12 in parallel, the cathode output end of each power module 12 with Positive bus 10 connects, and the cathode output end of each power module 12 connect with negative bus 11, this power module 12 into One step include exchange input module 101, direct current output module 103 be located at exchange input module 101, direct current output module 103 Between AC/DC conversion module 102, be parallel with a capacitor 104, and this direct current output mould in the direct current output module 103 A backward dioded 105 is connected between the positive terminal and positive bus 10 of block 103;
An AC ammeter 14 is separately installed on the A1 line 6, B1 line 7 and C1 line 8, the charging negative pole end 5 is contacted with direct current One DC meter 15 is installed in the negative bus 11 between device 3;
Bridging has a control loop 18 between the A1 line 6 and N1 line 9, and the control terminal of this control loop 18 and power supply device 2 connects It connects, the size of the 2 output voltage electric current of timing and power supply device for controlling start and stop, the charging of power supply device 2, the anode is total Bridging has a voltage sampling unit 19 and a current sampling unit 20, the control loop 18 between line 10 and negative bus 11 According to the voltage and current value from voltage sampling unit 19 and current sampling unit 20, power supply device 2 is controlled;
Also bridging has a detection device 21 between the positive bus and negative bus, this detection device 21 is located at power supply device 2 Between D.C. contactor 3, the detection device 21 further comprises power supply 22 and the concatenated relay 23 of power supply 22, voltage Sampler 24 and control unit 25, described control unit 25 are connect with the control terminal of relay 23, for controlling relay 23 On-off, the voltage sample device 24 are used to acquire the voltage value between positive bus 10 and negative bus 11, described control unit 25, according to the voltage value from voltage sample device 24, control the on-off of relay 23.
The number of several above-mentioned power modules 12 in parallel is 8;Above-mentioned D.C. contactor 3 and charging positive terminal 4 it Between positive bus 10 on a fusible core is installed.
Embodiment 2: a kind of stable type intelligent charging machine is connected to the disconnected of the A line of power grid, B line, C line and N line including one end Road device 1, power supply device 2, D.C. contactor 3, the charging positive terminal 4 for connecting charging gun and charging negative pole end 5, the open circuit The other end of device 1 has been correspondingly connected with A1 line 6, B1 line 7, C1 line 8 and N1 line 9, and the ac input end of the power supply device 2 is connected to The cathode output end of A1 line 6, B1 line 7 and C1 line 8, this power supply device 2 is connect with charging positive terminal 4 by positive bus 10, institute The cathode output end for stating power supply device 2 is connect with charging negative pole end 5 by negative bus 11, and the positive bus 10 and cathode are total The D.C. contactor 3 is provided on line 11;
The power supply device 2 includes several power modules 12 in parallel, the cathode output end of each power module 12 with Positive bus 10 connects, and the cathode output end of each power module 12 connect with negative bus 11, this power module 12 into One step include exchange input module 101, direct current output module 103 be located at exchange input module 101, direct current output module 103 Between AC/DC conversion module 102, be parallel with a capacitor 104, and this direct current output mould in the direct current output module 103 A backward dioded 105 is connected between the positive terminal and positive bus 10 of block 103;
An AC ammeter 14 is separately installed on the A1 line 6, B1 line 7 and C1 line 8, the charging negative pole end 5 is contacted with direct current One DC meter 15 is installed in the negative bus 11 between device 3;
Bridging has a control loop 18 between the A1 line 6 and N1 line 9, and the control terminal of this control loop 18 and power supply device 2 connects It connects, the size of the 2 output voltage electric current of timing and power supply device for controlling start and stop, the charging of power supply device 2, the anode is total Bridging has a voltage sampling unit 19 and a current sampling unit 20, the control loop 18 between line 10 and negative bus 11 According to the voltage and current value from voltage sampling unit 19 and current sampling unit 20, power supply device 2 is controlled;
Also bridging has a detection device 21 between the positive bus and negative bus, this detection device 21 is located at power supply device 2 Between D.C. contactor 3, the detection device 21 further comprises power supply 22 and the concatenated relay 23 of power supply 22, voltage Sampler 24 and control unit 25, described control unit 25 are connect with the control terminal of relay 23, for controlling relay 23 On-off, the voltage sample device 24 are used to acquire the voltage value between positive bus 10 and negative bus 11, described control unit 25, according to the voltage value from voltage sample device 24, control the on-off of relay 23.
Above-mentioned AC ammeter 14 is used to use to power supply bureau's charging;Above-mentioned DC meter 15 is for giving charging vehicle analytic accounting expense.
When using aforementioned stable type intelligent charging machine, use several power module parallel connections for the mode of power supply device, it is real The classification of voltage is adjustable when having showed power supply, is charged with being suitable for different types of automobile;In addition, the setting of backward dioded, It can effectively prevent filling or the generation of dash current, protect circuit;
In addition, passing through the combination settings of AC ammeter and DC meter, it is respectively used to power supply bureau and using the user of charger Car owner carries out charging, ensure that the precision and accuracy of the respective charging in Alternating Current Power Supply end and DC charging end;In addition, electric current, electricity The combination settings of sampling unit and control loop are pressed, so that electric current, voltage value that control loop is arrived according to real-time sampling, adjustment pair The control of power supply device guarantees the dynamic monitoring in charging process, to guarantee the essence of the safety of charging, stability and charging Degree;
In addition, the setting of detection device carries out reverse charging to power supply device and detects its electricity when charger is charged Pressure judges whether the power module kind backward dioded of power supply device damages with this, if damage stop charging carrying out therefore Barrier investigation, avoids that the capacitor of power module and automobile batteries are direct in parallel to be caused dash current excessive and generate the feelings of failure Condition ensure that the safety and stability to automobile charging.
The workflow of detection device is as follows:
When charger is charged, detection device enters detection program, firstly, control unit control relay closure, detection The power supply of device charges to the bus of charger power supply device, meanwhile, voltage sample device detects output voltage, when voltage reaches To when voltage is arranged, control unit controls relay and disconnects, at this point, the bus electricity of voltage sample device detection charger power module Pressure shows have capacitor to be reversed charging if busbar voltage is greater than the half of setting voltage, and both backward dioded damaged, and prompts System power supply module breaks down, and otherwise system is normal, can be charged normal.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art Scholar cans understand the content of the present invention and implement it accordingly, and it is not intended to limit the scope of the present invention.It is all according to the present invention Equivalent change or modification made by Spirit Essence, should be covered by the protection scope of the present invention.

Claims (5)

1. a kind of stable type intelligent charging machine, it is characterised in that: be connected to the A line of power grid, B line, C line and N line including one end Breaker (1), power supply device (2), D.C. contactor (3), the charging positive terminal (4) for connecting charging gun and charging negative pole end (5), the other end of the breaker (1) has been correspondingly connected with A1 line (6), B1 line (7), C1 line (8) and N1 line (9), the power supply The ac input end of device (2) is connected to A1 line (6), B1 line (7) and C1 line (8), the cathode output end of this power supply device (2) with Charging positive terminal (4) passes through positive bus (10) and connects, the cathode output end of the power supply device (2) and charging negative pole end (5) It is connected by negative bus (11), is provided with the D.C. contactor in the positive bus (10) and negative bus (11) (3);
The power supply device (2) includes several power modules (12) in parallel, and the anode of each power module (12) is defeated Outlet is connect with positive bus (10), and the cathode output end of each power module (12) is connect with negative bus (11), this Power module (12) further comprise exchange input module (101), direct current output module (103) be located at exchange input module (101), the AC/DC conversion module (102) between direct current output module (103) is parallel on the direct current output module (103) One capacitor (104), and reversed two pole is connected between the positive terminal of this direct current output module (103) and positive bus (10) It manages (105);
It is separately installed with an AC ammeter (14) on the A1 line (6), B1 line (7) and C1 line (8), the charging negative pole end (5) A DC meter (15) are installed in negative bus (11) between D.C. contactor (3);
Bridging has a control loop (18) between the A1 line (6) and N1 line (9), this control loop (18) and power supply device (2) Control terminal connection, for controlling the timing and power supply device (2) output voltage electric current of the start and stop of power supply device (2), charging Size, bridging has a voltage sampling unit (19) and a current sample list between the positive bus (10) and negative bus (11) First (20), the control loop (18) is according to the voltage and current for coming from voltage sampling unit (19) and current sampling unit (20) Value controls power supply device (2);
Also bridging has a detection device (21) between the positive bus and negative bus, this detection device (21) is located at power supply dress It sets between (2) and D.C. contactor (3), the detection device (21) further comprises power supply (22), concatenated with power supply (22) Relay (23), voltage sample device (24) and control unit (25), the control terminal of described control unit (25) and relay (23) Connection, for controlling the on-off of relay (23), the voltage sample device (24) is used to acquire positive bus (10) and cathode is total Voltage value between line (11), described control unit (25) control relay according to the voltage value for coming from voltage sample device (24) (23) on-off.
2. stable type intelligent charging machine according to claim 1, it is characterised in that: several described power modules in parallel (12) number is 8.
3. stable type intelligent charging machine according to claim 1, it is characterised in that: the D.C. contactor (3) and charging A fusible core is installed in positive bus (10) between positive terminal (4).
4. stable type intelligent charging machine according to claim 1, it is characterised in that: the AC ammeter (14) is used for confession Electric office's charging is used.
5. stable type intelligent charging machine according to claim 1, it is characterised in that: the DC meter (15) is for being filled Electric car analytic accounting expense.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114200193A (en) * 2021-10-29 2022-03-18 东风商用车有限公司 Device and method for testing impact current of negative bus of electric automobile

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