CN108365656A - A kind of automobile charging pile security protection system - Google Patents
A kind of automobile charging pile security protection system Download PDFInfo
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- CN108365656A CN108365656A CN201810228020.2A CN201810228020A CN108365656A CN 108365656 A CN108365656 A CN 108365656A CN 201810228020 A CN201810228020 A CN 201810228020A CN 108365656 A CN108365656 A CN 108365656A
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 30
- 238000012806 monitoring device Methods 0.000 claims abstract description 16
- 238000007602 hot air drying Methods 0.000 claims abstract description 13
- 238000010891 electric arc Methods 0.000 claims abstract description 10
- 238000007664 blowing Methods 0.000 claims abstract description 6
- 238000007605 air drying Methods 0.000 claims abstract description 5
- 238000001514 detection method Methods 0.000 claims description 17
- 230000005611 electricity Effects 0.000 claims description 11
- 230000007613 environmental effect Effects 0.000 claims description 10
- 230000004044 response Effects 0.000 claims description 6
- 230000006870 function Effects 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 claims description 4
- 238000007791 dehumidification Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 10
- 238000004891 communication Methods 0.000 description 8
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Classifications
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- H02J7/0026—
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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
- B60L53/30—Constructional details of charging stations
- B60L53/31—Charging columns specially adapted for electric vehicles
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- H02J7/0021—
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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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a kind of automobile charging pile security protection systems, by charge parameter recording device, charge monitoring devices and the bus R-T unit that processor is arranged in automobile charger and is connected with processor, battery charge controller, the bus R-T unit being connected with battery charge controller, warning device, autopatching device and no-voltage breaker device are set in charging pile；Make the charge parameter used in charge parameter recording device records, when starting to charge up, hot-air drying device carries out heated-air drying dehumidifying to plug, and autopatching device automatically selects required input power and carries out circuit conversion；In the charging process beginning and end stage, the conversion voltage of no-voltage breaker device control circuit is close to zero to prevent electric arc from generating, and automatic arc-extinguishing device carries out air blowing arc extinguishing, to reach accurate match and the electronics switching to charge power supply, and steam, electric arc in charging process are done and utmostly eliminated, avoid the technical purpose of charging accident and security risk.
Description
Technical field
The present invention relates to the charging equipments of electric vehicle, more particularly, to a kind of automobile charging pile security protection system.
Background technology
The charging pile of electric vehicle is located outside more, and the existing DC charging of automobile charging also has AC charging, and has
Different charging voltages and electric current；Normal charge stake needs artificial selection charging used AC and DC type and voltage ginseng when charging
Number, complex steps, being easy to malfunction in turn results in charging safety accident, and is influenced charging process by rainwater and electric leakage, jump easily occurs
The problems such as lock, damage storage battery, carrys out severe compromise to automobile, charging pile and the personal safety belt of surrounding.
For waterproof, anticreep technical problem and theft protection for devices, overcurrent, overload/short circuit, overvoltage/under-voltage
Anticreep, thunder-lightning, anti-plug electric arc (injection arc extinguishing substance), charging permission control --- there are 4 kinds of safety measures
It is available：
(1) it is that locking is carried out by charging pile end, it is necessary to which extraction can be unlocked after obtaining permission by swiping the card；
(2) it is that locking is carried out to cable by vehicle end charging interface, can be extracted after only being unlocked with car key；
(3) it is that charging pile carries charge cable, the two forms one, can not take charge cable away from charging pile；
(4) it is to carry electromagnetic door by charging interface to lock charging plug, charging can not be taken out under lack of competence state and is inserted
Head.
About emergency stop mechanism, anticollision and the matching of charge parameter, the acquisition of charge ratio, the judgement of charging complete and
Automatically power off after the completion, there is electric leakage in charging process, overcurrent, short circuit should power off at once, in general, alternating-current charging pile by pile body,
Power input interface, charging interface, protection circuit, control circuit, safety device are constituted, it may also be necessary to increase metering
Device, reader device, human-computer interaction device, communication interface etc., ' internal organ ' safety of charging pile, charging operations safety of personnel etc.
Lightning protection is required for help, alternating-current charging pile should have perfect.
Most alternating-current charging piles are by pile body, power input interface, charging interface, protection circuit, control circuit, security protection
Device is constituted, some charging piles also add metering device, reader device, human-computer interaction device, communication interface etc..Therefore, it fills
Electric stake needs to enhance namely power input interface, charging interface, communication interface of degree of protection etc..Electric automobile charging pile category
In distribution net side, communication mode often considers with distribution network automated together.Communication is distribution network automated one
Key points and difficulties, region is different, condition is different, and applicable communication mode is also different, specific to electric automobile charging pile, leads to
Letter mode mainly has wired mode and wireless mode, wired mode mainly to have：Wired ethernet (RJ45 lines, optical fiber), industry string
Row bus (RS485, RS232, CAN bus)；Wireless mode mainly uses the mobile data access service of mobile operator, such as：
GRPS, EVDO, CDMA etc..This, which is also meaned that, is also possible to that RJ45 protectiving schemes, Ethernet can be applied in charging pile construction
Protectiving scheme, CAN bus protectiving scheme and GPS protectiving schemes and prevention at radio-frequency port protectiving scheme etc..
Alternating-current charging pile is a kind of utilization standard charging interface, uses conduction pattern for the electronic vapour with Vehicular charger
Vehicle provides the dedicated unit of electric energy.Generally have the function of control, charging, communication and security protection etc., and human-machine operation circle is provided
Face.Using touch LCD screen and whole voice prompt in operation, there is friendly man-machine interface, using contactless IC card and automatically
The charge system of bill printing has diversified charge mode may be selected, and has the personal of hardware and software duplicate protection and sets
The safeguard procedures of standby safety, are to provide the important equipment of electric vehicle charging service business.Can be achieved battery status information show,
Charging process remote monitoring and metering and billing function, way of paying include card, mobile-phone payment etc., and communication modes are total using CAN
Line, RS485 and GPRS etc., which part external product can provide 1/2/4 charging interface.
From the point of view of protecting angle：Charging pile has to have overvoltage/undervoltage protection, lightning protection, output short circuit protection, electric leakage
Protection and the protective devices such as overcurrent protection, and it is interior have earth leakage protective device, charging pile is in standby or charging process as leaked
Electric situation can trip in time, protect client's personal safety.
It can ensure that the people of permission can not open before charging, charging gun cannot be extracted arbitrarily in charging process
Come.
In the evolution of electric automobile charging pile, safety problem is related to every aspect, not only equipment safety
Protection, including uses the personal safety of process to protect, the safeguard protection to electric vehicle, safeguard protection to user and right
The protection of customer information safety.
China Automotive Technology ＆ Research Center principal expert Wang Fang points out that for charging pile there are security risk, one is that interconnection is mutual
Logical problem, one is the safe problem of charging.Interconnect problem, is exactly the disunity of interface standard and voltage standard.It fills
The interface of electric stake, there is Europe superscript, there is day mark, has national standard, also has any different on voltage.According to the portion investigation of Shang Qi groups, three are entirely grown
Angle region, direct-current charging post have 7 kinds of specifications, alternating-current charging pile to have 8 kinds of specifications.
Compatibility is related to the problem of hardware and software, and five current national standards only define the hard of charging interface
Part standard.After the appearance of " hardware " standard, charging pile cannot be still compatible in charge protocol, payment terminals etc. " software ", not
Under compatible charge protocol, the safety problems such as can not charge will be faced in electric vehicle charging.
Safety is that Future New Energy Source automobile charging infrastructure builds the first criterion, and first emphasis of new national standard specifies electronic
The basic of automobile charging system actual, versatility, security requirement.Also link, absolutely to charging temperature monitoring, mechanical lock and electronic lock
Edge detection and leadage circuit etc. are all provided.
Although patent of invention CN104157226《In electric bus charging pile security protection system and its workflow
Application method》, it discloses the application methods in a kind of electric bus charging pile security protection system and its workflow, lead to
Setting warning sign and accumulator are crossed, warning sign front surface is equipped with the warning symbol of LED light composition,；In charging process warning lamp from
Dynamic stroboscopic, prompts safety, accomplishes to the watchful effect of charging pile surrounding people, however how do not refer to prevents vehicle after charging complete
Charge port and the rainwater electrical leakage problems in charging pile connection procedure, and moment discharges strongly when charging terminates, circuit disconnects
The high-voltage arc problem brought.
Such as patent of invention CN106505684《A kind of protective device of charging pile and charging pile》, wherein being identified using magnetic card
Mode automatic identification need the model of charging vehicle, the type of charging interface and the matched connector of automatic push,
Problem is that magnetic card is detached with automobile, can not accomplish accurately to correspond, and is brought to the hidden danger of existence information entanglement
Charge fault and safety accident, and using the elevator and pusher of mechanical transmission formula, structure is cumbersome, and reliability is low, especially
It is prone under cold weather conditions machinery get stuck, joint failure the problem of.
Invention content
In order to overcome the above-mentioned deficiencies of the prior art, the present invention is intended to provide a kind of automobile charging pile security protection system,
Pass through charge parameter recording device, the charge monitoring devices that processor is set in automobile charger and is connected with processor
With bus R-T unit, the interior setting battery charge controller of charging pile, the bus R-T unit being connected with battery charge controller, report
Alarm device, autopatching device and no-voltage breaker device；Charge parameter used in charge parameter recording device records, works as automobile
When charger access charging pile starts to charge up, hot-air drying device carries out heated-air drying dehumidifying to plug, and autopatching device is certainly
Input power needed for dynamic selection and progress circuit conversion；In the charging process beginning and end stage, no-voltage breaker device control
The conversion voltage of circuit processed is close to zero, to utmostly prevent electric arc from generating, and automatic arc-extinguishing device is used for being powered and
The high-voltage arc that power process generates carries out air blowing arc extinguishing, to reach to the accurate match selection of charge power supply and voltage and electronics
Switching, and steam, electric arc in charging process are done and utmostly eliminated, avoid the technology mesh of charging accident and security risk
's.
For this purpose, the technical solution adopted in the present invention is：A kind of automobile charging pile security protection system, including it is set to vapour
Processor in vehicle charger, and the charge parameter recording device, charge monitoring devices and the bus that are connected with processor are received
Transmitting apparatus；Further include the battery charge controller being set in charging pile, the bus R-T unit that is connected with battery charge controller,
Warning device, autopatching device and no-voltage breaker device；Bus R-T unit in the automobile charger and charging pile
Interior bus R-T unit is connected by bus；
Also include hot-air drying device and environmental detection set, automatic arc-extinguishing device, circuit protection device, institute in charging pile
Hot-air drying device is stated respectively to be connected by data line with autopatching device and environmental detection set；Automatic arc-extinguishing device with
No-voltage breaker device is connected by signal wire；Circuit protection device is connected with warning device by signal wire, wherein：
The charge parameter recording device is used to record the charge parameter used in automobile charger；
The charge monitoring devices for detecting electricity and charged state data in automobile charging process in real time；
Hot-air drying device is used to carry out heated-air drying dehumidification process to the plug of automobile charger, only when plug humidity
Subsequent charge process is just carried out less than special value；
Charge parameter of the autopatching device used in automobile charger automatically selects needed for input power and progress
Circuit conversion；
Environmental detection set detects the air themperature and humidity inside charging pile；
No-voltage breaker device was used in the charging process beginning and end stage, and the conversion voltage of control circuit is close to zero
Value, to utmostly prevent electric arc from generating；
Automatic arc-extinguishing device is used to carry out air blowing arc extinguishing to the high-voltage arc being powered and power process generates.
Further, the charge parameter recording device includes microprocessor and being connected with microprocessor
Memory and protocol conversion interface are read, the protocol conversion interface is used to being converted to charge parameter information into the association needed for charging pile
Discuss format.
Further, the charge monitoring devices include computing device and the electricity being connected with computing device sensing
Device, charge status indicating light and battery capacity indication lamp.
More preferably, the charge parameter recording device includes Quick Response Code device, corresponding, and charging pile includes barcode scanning
Device, the barcode scanning device are connected with battery charge controller；The charge parameter of the Quick Response Code device record automobile charger
Information.
More preferably, the charge parameter recording device includes RFID card device, corresponding, and charging pile includes RFID
Reader device, the RFID reader devices are connected with battery charge controller；The RFID card device record automobile charger
Charge parameter information.
Further, the autopatching device includes that the terminal box connect, selector, power array are sequentially connected with conducting wire
And conversion circuit, the selector are connected with battery charge controller；The selector is used to select to connect charging friendship used
Stream and DC power supply type, the conversion circuit is for voltage value needed for conversion electric power voltage to charging.
More preferably, the selector is multichannel low-voltage relay.
More preferably, the selector is multichannel low tension switch.
Further, bus used in the bus R-T unit and bus R-T unit be RS buses, CAN bus,
Any one in ModBus buses and vxi bus.
More preferably, the circuit protection device has to electric leakage, the detection of overcurrent and electric voltage exception, report in charging process
Alert output and turn-off function；Charge monitoring devices in charging process in automobile charger pass through bus R-T unit, Xiang Chong
Battery charge controller in electric stake sends information about power；After charging complete, charge monitoring devices are realized by operation processing device
Automobile side disconnects charge circuit automatically.
The present invention has the advantages that：
First, the present invention by the charge parameter recording device that is arranged in automobile charger and bus R-T unit to charging
Stake transmission charge parameter automatically selects required input power using autopatching device in charging pile and carries out electronics conversion,
System structure is simple, good reliability avoids people to realize automatic power selection and the voltage switching of the charging of different manufacturers automobile
The charge fault and safety accident that work maloperation is brought；
Secondly, the present invention ensures plug without steam at the beginning of charging, using hot-air drying device and environmental detection set
Afterwards, charge circuit could be really connected, to avoid the serious drain hidden danger brought with elimination circuit steam；
Finally, the present invention also includes no-voltage breaker device and automatic arc-extinguishing device, realizes charge circuit connecting and disconnecting
Moment avoids hard arc close to no-voltage, and possible electric arc hidden danger can be eliminated using high pressure blow-gas, reaches to automobile, charging
The utmostly security protection of stake and operating personnel.
Description of the drawings
Fig. 1 is a kind of composed structure schematic diagram of automobile charging pile security protection system,
Fig. 2 is the composed structure schematic diagram of charge parameter recording device,
Fig. 3 is the composed structure schematic diagram of charge monitoring devices,
Fig. 4 is the composed structure schematic diagram of autopatching device,
Fig. 5 is the composed structure schematic diagram of circuit protection device,
Fig. 6 is the composed structure schematic diagram of the second embodiment of charge parameter recording device,
Fig. 7 is the composed structure schematic diagram of the 3rd embodiment of charge parameter recording device,
Fig. 8 is the data structure schematic diagram of charge parameter,
Fig. 9 is the circuit diagram of no-voltage breaker device, wherein：VIN is input terminal voltage, and A, B, C, D are in circuit
Specified point, wherein D points are voltage output end, and T1A and T1B constitute single-end ortho-exciting or single end flyback converter, C1, C2, C3 are
Capacitor, D1, D2, D3 are diode, and L1 is inductor, the switch of Q1B charge circuit break-makes in order to control.
Specific implementation mode
In order to deepen the understanding of the present invention, present invention will be further explained below with reference to the attached drawings and examples, the implementation
Example is only used for explaining the present invention, does not constitute and limits to protection scope of the present invention.
A kind of automobile charging pile security protection system of the present invention, composed structure is as shown in Figure 1, including being set to
Processor 101 in automobile charger 100 and the charge parameter recording device 102 being connected with processor 101, monitoring of charging
Device 104 and bus R-T unit 103, battery charge controller 201 and the battery charge controller 201 being set in charging pile 200
Bus R-T unit 202, warning device 208, autopatching device 203 and the no-voltage breaker device 206 being connected.
The bus R-T unit 202 in bus R-T unit 103 and charging pile 200 in the automobile charger 100 is logical
It crosses bus to be connected, the bus for connection is arbitrary in RS232 buses, CAN bus, ModBus buses and vxi bus
It is a kind of；
Divide comprising hot-air drying device 204 and environmental detection set 205, the hot-air drying device 204 in charging pile 200
It is not connected by data line with autopatching device 203 and environmental detection set 205；
Include automatic arc-extinguishing device 207 in charging pile 200, is connected by signal wire with no-voltage breaker device 206；
Include circuit protection device 209 in charging pile 200, is connected by signal wire with warning device 208.
Embodiment 1
The charge parameter recording device is used to record the charge parameter used in automobile charger, different automobile chargers
With different charge parameters；
The charge monitoring devices are main to wrap for detecting electricity and charged state data in automobile charging process in real time
It includes and currently electricity percentage is completed, just in charging work state and charging complete status information；
Hot-air drying device is used to carry out heated-air drying dehumidification process, the air humidity only near plug to charging plug
Less than special value, subsequent charge process is just carried out；
Environmental detection set detects the air themperature and humidity inside charging pile；
Charge parameter of the autopatching device used in automobile charger automatically selects needed for input power and progress
Circuit conversion；
No-voltage breaker device was used in the charging process beginning and end stage, and the conversion voltage of control circuit is close to zero
Value, to utmostly prevent electric arc from generating；
Automatic arc-extinguishing device is used to carry out air blowing arc extinguishing to the high-voltage arc being powered and power process generates；
Warning device 208 export voice prompt, word, alarm bell and light flash form warning message.
102 further composed structure of the charge parameter recording device as shown in Fig. 2, including microprocessor 1021 with
And the read-only memory 1022 and protocol conversion interface 1023 being connected with microprocessor 1021, the protocol conversion interface are used
In charge parameter information to be converted to the protocol format needed for charging pile.
In this embodiment, charge parameter recording device 102 stores charging in the form of the read-only memory such as ROM, FLASH
Parameter information, and charging pile is transmitted to by microprocessor 1021, protocol conversion interface 1023, bus R-T unit 103
Battery charge controller 201.
104 further composed structure of the charge monitoring devices as shown in figure 3, including computing device 1041 and with meter
Calculate electrical quantity sensor 1042, charge status indicating light 1043 and battery capacity indication lamp 1044 that device 1041 is connected.
The working condition that 1043 display automobile charger of charge status indicating light is charging, battery capacity indication lamp 1044 are shown
Charge volume percentage.Battery capacity indication lamp can also be designed as LED display or one group of light emitting diode.
In the above-described embodiments, the charge parameter data structure of automobile charger is as shown in figure 8, specifically include D1 charging electricity
Stream type, standard charge voltage D2, input voltage range D3 and charging current range D4；The charging current type includes straight
The standard charge voltage of galvanic electricity, two-phase alternating current and three-phase alternating current etc., charger includes AC 220 V, exchanges 380 volts, is straight
48 volts, 36 volts of direct current etc. are flowed, input voltage range refers to the input charging voltage range that charger can be born, charging current range
Refer to the current effective value bound in the charger charging process.
Embodiment 2
The composed structure of another embodiment of the charge parameter recording device 102 is as shown in fig. 6, include Quick Response Code device
1025, corresponding, charging pile 200 includes barcode scanning device 2101, the barcode scanning device 2101 and battery charge controller 201
It is connected；The Quick Response Code device 1025 records the charge parameter information of automobile charger.
Before charging starts, the subsidiary barcode scanning device 2101 of charging pile is manually removed, goes the two dimension of scanning automobile side setting
Code device 1025 is to obtain automobile charge parameter.In the case, bus transmitting-receiving can be removed between automobile charger and charging pile
Device.
Embodiment 3
The composed structure of another embodiment of the charge parameter recording device 102 is as shown in fig. 7, comprises RFID card device
1026, corresponding, charging pile 200 includes RFID reader devices 2102, and the RFID reader devices 2102 are controlled with charging
Device 201 processed is connected；The RFID card device 1026 records the charge parameter information of automobile charger.
Before charging starts, the RFID reader devices 2102 of charging pile are triggered by manual command, and reading automobile side is gone to set
The RFID card device 1026 set is to obtain automobile charge parameter.In the case, can remove between automobile charger and charging pile
Bus R-T unit.
203 further composed structure of the autopatching device is as shown in figure 4, include being sequentially connected connecing of connecing with conducting wire
Wire box 2034, selector 2031, power array 2032 and conversion circuit 2033, the selector 2031 and battery charge controller
201 are connected；The selector is used to select to connect charging exchange used and DC power supply type, and the conversion circuit is used for
Voltage value needed for conversion electric power voltage to charging.
Terminal box 2034 is connected with the charging plug of automobile charger, power array 2032 include at least DC power supply,
Two-phase alternating current source and three-phase alternating-current supply, conversion circuit 2033 can carry out charging voltage transformation.
Battery charge controller 201 includes processor, control selections device, power array and conversion electricity after receiving charge parameter
The switching on road and parameter setting.
The present invention at the beginning of charging, is dehumidified using the continuous blowing hot-air of hot-air drying device, and environmental detection set detection is inserted
Head surrounding air humiture；After only ensuring plug without steam, charge circuit could be really connected, to avoid electric with elimination charging
Contain the serious drain hidden danger that steam is brought in road.
Embodiment 4
The selector 2031 is multichannel low-voltage relay.By controlling multichannel low-voltage relay, only so that power array
That being consistent with the charging current type of automobile charger in 2032 is connected all the way, other roads disconnect.
Embodiment 5
The selector 2031 is multichannel low tension switch.By controlling multichannel low tension switch so that terminal box is with power supply battle array
It is connect all the way with that the charging current type of automobile charger is consistent in row 2032.
The present invention transmits charge parameter by the charge parameter recording device being arranged in automobile charger to charging pile, is filling
Electric stake uses autopatching device, automatically selects required input power and carries out circuit conversion；Compared to mechanical transmission mode, originally
The invention security protection system is simple in structure, good reliability, to realize the automatic power choosing of different manufacturers automobile charging
It selects and is converted with voltage, the charge fault and safety accident for avoiding artificial incorrect operation from bringing.
Embodiment 6
The circuit protection device 209 has defeated to electric leakage, the detection of overcurrent and electric voltage exception, alarm in charging process
Go out and turn-off function.
209 further composed structure of circuit protection device is as shown in figure 5, including earth detector 2091, breaker
2092, overcurrent detecting device 203, electric voltage exception detection device 2094 and air switch 2095, wherein：Earth detector 2091
With breaker 2092 there is conducting wire to connect, air switch 2095 and overcurrent detecting device 203 and electric voltage exception detection device
2094 there is conducting wire to connect；Earth detector 2091, overcurrent detecting device 203 and electric voltage exception detection device 2094 are distinguished
With warning device 208 there is conducting wire to connect.
By above structure, when charging when the abnormal conditions such as electric leakage, overcurrent, short circuit, overvoltage, under-voltage occur,
Charging circuit disconnects, and notice warning device sends out alarm bell, word, light flash and voice prompt alarm immediately.To
Avoid and warn in time the serious scenes such as electric leakage is shocked by electricity, overcurrent is burnt.
Embodiment 7
Charge monitoring devices 104 in charging process in automobile charger 100 pass through bus R-T unit 103, Xiang Chong
Battery charge controller 201 in electric stake 200 sends information about power, to make charging pile find charging progress and charging complete in time
Prompt message；
After charging complete, charge monitoring devices 104 are realized that automobile side disconnects automatically and are filled by operation processing device 101
Electrical circuit.Processor 101 is disconnected by relay, the charge circuit of operation automobile side.
206 further circuit diagram of no-voltage breaker device is as shown in figure 9, its realization is steadily cut close to no-voltage
It changes, more thoroughly the technical principle of absorption switching energy is as follows：
Single-end ortho-exciting or single end flyback converter are constituted by T1A and T1B, C3, D3, L1, C1, Q1B constitute resonant tank, by
C1, C3, Q1B constitute switching tube clamper circuit.
The capacitance of the capacitance C1 is much larger than capacitance C3.
When switching tube Q1B is connected, it is divided into three processes：
1) moment is connected in switching tube Q1B, motivates induced current in single-end transformer pair side T1B, diode D2 is made to connect
Logical, formation includes the circuit of T1B, D2, C3, and capacitance C3 is made to charge.
2) when the terminal voltage of capacitance C3, i.e. D point voltage-to-grounds, after being less than the connection voltage of diode D2, D2 ends.This
When, C3, D3, L1, C1, Q1B form resonant tank, and harmonic period is 2 π * sqrt (L1*C1*C3/ (C1+C3)), wherein sqrt
Indicate extraction of square root.Since C1 is much larger than C3, therefore harmonic period is approximately equal to 2 π * sqrt (L1*C3), in this resonant process, C3
Electric discharge, C1 chargings, discharges after the energy storage of L1 elder generations.Since C1 is larger, the upper voltage changes of C1 are smaller, meanwhile, start in D2 cut-offs, resonance
When C3 initial terminal voltage it is relatively low so that the voltage that the both ends resonant process switching tube Q1B are born is relatively low；And due to C3 electricity
Capacitance is smaller, so that participating in the quantity of electric charge very little of entire resonant process, resonant energy is limited.
3) when it is-VIN that C3, which is discharged to terminal voltage, D2 is connected, and forms the circuit being made of L1, C1, C2, D2, D3, from
And C3 terminal voltages are clamped at-VIN, the upper energy of L1 continues to discharge to C1, and D3 shutdowns are completed in release.
By above-mentioned design, during switching tube is connected, relatively low, the switching tube both ends by switch tube current is made to bear
Voltage is relatively low.
When switching tube Q1B is turned off, by following 2 processes：
1) in Q1B shutdown moments, induced current is motivated in single-end transformer pair side T1B, diode D2 is made to connect, is formed
The circuit being made of T1B, D2, C3 makes capacitance C3 charge.
Since C3 terminal voltages have been clamped to-VIN after switching tube Q1B is connected, after charging complete C3 terminal voltages than
The case where being started to charge up from 0 voltage is much smaller, so can achieve the effect that cut down voltage peak, near zero voltage shutdown.
2) after capacitance C3 terminal voltages are less than the connection voltage of diode D2, D2 cut-offs.At this point, L1, C1, C2, T1B, C3
Circuit, C3 electric discharges are formed with D3, C1 chargings discharge after the energy storage of L1 elder generations.Discharge off, D3 shutdowns.Since C1 is larger, the upper voltages of C1
Variation is smaller, so that the voltage that this process switching tube both ends is born is relatively low always, without peak voltage.
Therefore, the switching tube Q1B can use the lower regular tap pipe of pressure resistance.
The present invention realizes charge circuit connecting and disconnecting moment close to no-voltage, to keep away by no-voltage breaker device
Exempt from hard arc；Using automatic arc-extinguishing device, possible electric arc hidden danger in surrounding air is eliminated using high pressure blow-gas, is reached to vapour
Vehicle, charging pile and the utmostly security protection of operating personnel.
What the embodiment of the present invention was announced is preferred embodiment, and however, it is not limited to this, the ordinary skill people of this field
Member understands the spirit of the present invention easily according to above-described embodiment, and makes different amplification and variation, but as long as not departing from this
The spirit of invention, all within the scope of the present invention.
Claims (10)
1. a kind of automobile charging pile security protection system, which is characterized in that including the processing being set in automobile charger (100)
Device (101), and the charge parameter recording device (102), the charge monitoring devices (104) and total that are connected with processor (101)
Line R-T unit (103)；Further include the battery charge controller (201) being set in charging pile (200), with battery charge controller
(201) bus R-T unit (202), warning device (208), autopatching device (203) and the no-voltage power-off dress being connected
It sets (206)；The bus R-T unit in bus R-T unit (103) and charging pile (200) in the automobile charger (100)
(202) it is connected by bus；
Also include hot-air drying device (204) and environmental detection set (205), automatic arc-extinguishing device in charging pile (200)
(207), circuit protection device (209), the hot-air drying device (204) are examined with autopatching device (203) and environment respectively
Device (205) is surveyed by data line to be connected；Automatic arc-extinguishing device (207) passes through signal wire with no-voltage breaker device (206)
It is connected；Circuit protection device (209) is connected with warning device (208) by signal wire, wherein：
The charge parameter recording device is used to record the charge parameter used in automobile charger；
The charge monitoring devices for detecting electricity and charged state data in automobile charging process in real time；
Hot-air drying device is used to carry out heated-air drying dehumidification process to the plug of automobile charger, only when plug humidity is less than
Special value just carries out subsequent charge process；
Charge parameter of the autopatching device used in automobile charger automatically selects input power and carries out required circuit
Conversion；
Environmental detection set detects the air themperature and humidity inside charging pile；
No-voltage breaker device was used in the charging process beginning and end stage, the conversion voltage of control circuit close to zero, from
And utmostly prevent electric arc from generating；
Automatic arc-extinguishing device is used to carry out air blowing arc extinguishing to the high-voltage arc being powered and power process generates.
2. a kind of automobile charging pile security protection system according to claim 1, which is characterized in that the charge parameter note
Recording device (102) includes microprocessor (1021) and the read-only memory (1022) being connected with microprocessor (1021)
With protocol conversion interface (1023), the protocol conversion interface is used to being converted to charge parameter information into the agreement needed for charging pile
Format.
3. a kind of automobile charging pile security protection system according to claim 1, which is characterized in that the charging monitoring dress
It includes computing device (1041) and the electrical quantity sensor (1042) being connected with computing device (1041), charging shape to set (104)
State indicator light (1043) and battery capacity indication lamp (1044).
4. a kind of automobile charging pile security protection system according to claim 1, which is characterized in that the charge parameter note
Recording device (102) includes Quick Response Code device (1025), corresponding, and charging pile (200) includes barcode scanning device (2101), institute
Barcode scanning device (2101) is stated with battery charge controller (201) to be connected；The Quick Response Code device (1025) records automobile charger
Charge parameter information.
5. a kind of automobile charging pile security protection system according to any one of claims 1-4, which is characterized in that described
Charge parameter recording device (102) includes RFID card device (1026), corresponding, and charging pile (200) includes that RFID is read
Card device (2102), the RFID reader devices (2102) are connected with battery charge controller (201)；The RFID card device
(1026) the charge parameter information of automobile charger is recorded.
6. a kind of automobile charging pile security protection system according to claim 1, which is characterized in that the autopatching dress
It includes that the terminal box (2034) connect, selector (2031), power array (2032) and conversion electricity are sequentially connected with conducting wire to set (203)
Road (2033), the selector (2031) are connected with battery charge controller (201)；The selector connects charging for selecting
Exchange used and DC power supply type, the conversion circuit is for voltage value needed for conversion electric power voltage to charging.
7. a kind of automobile charging pile security protection system according to claim 6, which is characterized in that the selector
(2031) it is multichannel low-voltage relay.
8. a kind of automobile charging pile security protection system according to claim 6, which is characterized in that the selector
(2031) it is multichannel low tension switch.
9. a kind of automobile charging pile security protection system according to claim 1, which is characterized in that the bus transmitting-receiving dress
It is that RS232 buses, CAN bus, ModBus buses and VXI are total to set bus used in (103) and bus R-T unit (204)
Any one in line.
10. a kind of automobile charging pile security protection system according to claim 1, which is characterized in that the circuit protection
Device (209) have in charging process electric leakage, overcurrent and electric voltage exception detection, warning output and turn-off function, filling
Charge monitoring devices (104) in electric process in automobile charger (100) are by bus R-T unit (103), to charging pile
(200) battery charge controller (201) in sends information about power；After charging complete, charge monitoring devices (104) pass through operation
Processor (101) realizes that automobile side disconnects charge circuit automatically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810228020.2A CN108365656A (en) | 2018-03-20 | 2018-03-20 | A kind of automobile charging pile security protection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810228020.2A CN108365656A (en) | 2018-03-20 | 2018-03-20 | A kind of automobile charging pile security protection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108365656A true CN108365656A (en) | 2018-08-03 |
Family
ID=63000556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810228020.2A Pending CN108365656A (en) | 2018-03-20 | 2018-03-20 | A kind of automobile charging pile security protection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108365656A (en) |
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| CN112248851A (en) * | 2020-10-15 | 2021-01-22 | 深圳市嘉兴南电科技有限公司 | Automobile charging pile capable of preventing electric leakage in rain days |
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Effective date of registration: 20190404 Address after: 434000 Xiangyang Third Team, Shashi Farm Yaowan Branch, Shacheng District, Jingzhou City, Hubei Province Applicant after: Ai Xinyuan Applicant after: Meng Zengli Address before: 056000 Xiangyang Courtyard, 2 Building 3 Unit 1, Xinsheng 4th Street, Xuecun Town, Fengfeng Mining Area, Handan City, Hebei Province Applicant before: Meng Zengli |
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