CN208306388U - A kind of reliable non-on-board charger of high safety - Google Patents
A kind of reliable non-on-board charger of high safety Download PDFInfo
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- CN208306388U CN208306388U CN201820861131.2U CN201820861131U CN208306388U CN 208306388 U CN208306388 U CN 208306388U CN 201820861131 U CN201820861131 U CN 201820861131U CN 208306388 U CN208306388 U CN 208306388U
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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
- 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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Abstract
A kind of reliable non-on-board charger of high safety disclosed in the utility model comprising charging major loop and charge control loop；Charging major loop includes AC energy meter, the AC circuit breaker, A.C. contactor of charging module and the electrical connection of charging module input side, fuse, direct current energy meter and the D.C. contactor of the electrical connection of charging module outlet side；Charge control loop includes controller, output relay connected to the controller and the accessory power supply for charge control loop power supply.Multilevel redundancy protection is realized by the utility model, becomes multi-joint dynamic integrated protection from single isolated protection, improves the charging safety of non-on-board charger.
Description
Technical field
The utility model belongs to electric car charging technique field, in particular to a kind of direct current non-on-board charger.
Background technique
Currently on the market, non-on-board charger generally uses traditional single electic protection, by leakage circuit breakers or
Artificial emergency stop ensures the safe operation of equipment, can not meet the reliable market operation demand of high safety in this way.As shown in Figure 1,
In the prior art, the charging circuit of non-on-board charger mainly includes charging major loop and charge control loop, wherein charging master
The input terminal in circuit is connect by power supply interface with 380V AC power source, and output end is connect by charging interface with electric car.
The major loop that charges mainly includes that AC circuit breaker, charging module, fuse and output contactor K1K2, charge control loop are main
Including controller, accessory power supply and output relay K3K4.At work, non-on-board charger controller (abbreviation controller) is logical
Control K1K2 and K3K4 and the communication between BMS (battery management system) are crossed, realizes charge function.If going out in charging process
Now abnormal, controller issues halt instruction to charging module, orders its shutdown, while can also control K1K2 and K3K4 and disconnect.Out
Existing extreme case, outlet side fuse can fuse, AC circuit breaker can thread off, to protect to total system, but if molten
Disconnected device or purpose of breaker failure will then bring great security risk.In addition, under generic failure, such as over-charging of battery, voltage are different
Often, Abnormal Insulation etc. can not also be protected by fuse or breaker.
Utility model content
To solve the above problems, the utility model provides a kind of reliable non-on-board charger (i.e. DC charging of high safety
Stake), to improve the safety that non-on-board charger uses.
The reliable non-on-board charger of high safety disclosed in the utility model comprising charging major loop and charge control
Circuit；Charging major loop include charging module and charging module input side electrical connection AC energy meter, AC circuit breaker,
A.C. contactor, fuse, direct current energy meter and the D.C. contactor of the electrical connection of charging module outlet side；The AC energy meter
The voltage and current value of detection charging module input side and charging module outlet side is respectively used to direct current energy meter and is sent to control
Device processed；The A.C. contactor and D.C. contactor are respectively used to control charging module input lateral circuit and export the logical of lateral circuit
It is disconnected；Charge control loop includes controller, output relay connected to the controller and powers for charge control loop auxiliary
Power supply is helped, controller is electrically connected with AC energy meter, A.C. contactor, direct current energy meter and D.C. contactor, is filled for controlling
Electric major loop working condition.The controller is according to communicating the charge requirement value of the electric car got with BMS, receive
The voltage and current output valve of the measure voltage & current value and charging module of AC energy meter and direct current energy meter feedback, to control
The working condition of system charging major loop, to guarantee the charging safety of charging major loop.
Preferably, the AC circuit breaker, fuse, A.C. contactor and D.C. contactor all have contact feedback function
Can, its health status can be detected by remote signalling detection function possessed by controller.
Preferably, charging module outlet side further includes insulation detecting circuit and leadage circuit, and the insulation detecting circuit is used
Pile body insulation performance judgement before precharge, after voltage of the leadage circuit for after Insulation monitoring releases and charges
Voltage release.
Preferably, the input terminal of AC energy meter is connect by power supply interface with external ac power source, AC energy meter
Output end is sequentially connected the input terminal of AC circuit breaker, A.C. contactor and charging module；The output end of charging module successively connects
Fuse, leadage circuit, insulation detecting circuit, direct current energy meter and D.C. contactor are connect, the output end of D.C. contactor passes through
Charging interface is connect with electric car.
Preferably, charge control loop further includes the miniature circuit breaker for controlling charge control loop on-off.
Preferably, the miniature circuit breaker has creepage protection function, and leak current fault occurs to detect charge control loop
When, carry out trip protection.
Preferably, the charge control loop further includes the fastp-acting fuse being electrically connected with output relay output end, is used
In obstructing charge control loop and charging major loop when unusual condition occurs, to guarantee the safety of charge control loop.
It preferably, further include control guiding protective circuit connected to the controller.
Preferably, the charging module carries multiple protection functions, including the protection of earth leakage protective, electric voltage exception, overcurrent are protected
Short-circuit protection function before shield and starting.
The utility model has the advantages that the safeguard protection redundancy of non-on-board charger is improved, from list by multilevel redundancy protection mechanism
One isolated protection becomes multi-joint dynamic integrated protection；It solves the drawbacks of single electric security protector in the prior art, drops significantly
The possibility that low security risk occurs；Strengthen completeness, real-time, accuracy and the environmental suitability of electric security protector；
To meet the policy requirements that country is directed to electric car infrastructure operational safety.
Detailed description of the invention
Fig. 1 is the circuit block diagram of non-on-board charger in the prior art；
Fig. 2 is the circuit block diagram of non-on-board charger in embodiment；
Fig. 3 is that multilevel redundancy protects schematic diagram in embodiment.
Specific embodiment
The reliable non-on-board charger of high safety (abbreviation charger) disclosed by the utility model, it is superfluous to construct a kind of multistage
Remaining protection mechanism is not only able to achieve electric security protector, but also the software and hardware communication of combined charge module in electrical component level
And accurate monitoring of the electric energy meter to electric parameter, three's parallel processing ensure the safe and reliable operation of equipment.
As shown in Fig. 2, embodiment discloses a kind of reliable non-on-board charger of the high safety with multilevel redundancy characteristic,
Charge circuit mainly includes charging major loop and charge control loop, wherein the input terminal for the major loop that charges passes through power supply interface
It is connect with 380V AC power source, output end is connect by charging interface with electric car.Existing off-board charging shown in Fig. 1
On the basis of machine, charging major loop in increase Three Phase Alternating-current Electrical Energy Meters, A.C. contactor, leadage circuit, insulation detecting circuit,
Direct current energy meter；Increase miniature circuit breaker, fastp-acting fuse, and control guiding protective circuit in charge control loop.Figure
In, dotted line indicates communication (two-way communication), and thin arrow indicates control, and dotted line+thin arrow then indicates to communicate and control only have touching
The line of point feedback, which does not illustrate, to be come.In addition, further including uplink communication unit and human-computer interaction interface connected to the controller etc.
Common module.
Above-mentioned AC circuit breaker, A.C. contactor, fuse, leadage circuit, D.C. contactor etc. are fed back with contact
Function, corresponding controller have remote signalling detection function.Based on the contact feedback function that each electrical component carries, controller can lead to
The state for crossing remote signalling detection each electrical component of real-time monitoring, judges whether its state (closing or opening) matches preset state or fill
Electricity condition can judge the health degree (being primarily referred to as whether having glutinous) of electrical component to make suitable reactions simultaneously.
The metering units of the AC energy meter of input side and the direct current energy meter of outlet side as charge circuit, three-phase alternating current
Electric energy meter is fed back to control mainly for detection of the three-phase voltage of charging module input side, total current and performance number etc.
Device；Direct current energy meter is fed back to control for detecting ceiling voltage, total current and performance number of charging module outlet side etc.
Device processed.
A.C. contactor and D.C. contactor are respectively used to control charging module input side and export the on-off of lateral circuit.?
When standby operation, charging module power loss is made by the circuit that A.C. contactor disconnects charging module input side, can achieve power saving
Energy-efficient effect.A.C. contactor is also used as a kind of " emergency stop " button, when needing to disconnect or restore input lateral circuit, leads to
Crossing A.C. contactor can be realized, and operation ordinary user can complete operation, and without operating AC circuit breaker, raising makes
With convenience, the workload of operation maintenance personnel is also reduced.In addition, at this moment both may be used when there is unusual condition needs stopping charging
To be powered off by AC circuit breaker, can also be prevented by A.C. contactor emergency stop when AC circuit breaker breaks down, it can not
The security risk for stopping charging further improving the safety of input lateral circuit.
Insulation detecting circuit is mainly used for detecting the insulation values of entire charger.
Leadage circuit is mainly for the protection of cell load and personnel safety.After finishing Insulation monitoring, need to charging mould
Block outlet side voltage is released, and makes Vehicular battery load not by high-voltage impact；When shutting down, it is also desirable to defeated to charging module
Side voltage is released out, to guarantee personnel safety.
In charging major loop, charging module receives controller by communicating the electric car obtained in real time charging with BMS
Demand, and according to charge requirement power calculation voltage and current requirements, it is then forwarded to charging module；Charging module is according to voltage
Current needs value charges, and will be given on its running parameter simultaneously to controller, including voltage and current working value etc..To prevent
Sent on charging module running parameter inaccuracy and bring security risk, the voltage that controller exports the electric energy meter received
The voltage and current working value sent on current detection value and charging module is compared, and on the one hand judges the work shape of charging circuit
State is output normally or there are overcurrent, electric voltage exception, electric leakage or short circuit phenomenon, and electric leakage, short circuit and over-voltage is occurring, or
Halt instruction is issued when person is under-voltage, overcurrent is more than threshold values, control charging module stops working, and controls A.C. contactor or direct current connects
Tentaculum on-off, to guarantee the circuit of charging major loop and the safety of associated electrical components；On the other hand it also will appreciate that charging module
Working condition and correlation performance parameters, including charge efficiency, life situations etc., carry out early warning work in advance.Preferably, it charges
The type of included multiple protective characteristic can be selected in module, including earth leakage protective, electric voltage exception are protected, overcurrent protection and starting are preceding short
Road defencive function etc., and these states can be fed back to the controller for communicating with connection, to realize to non-on-board charger
Multiple protective.In addition, controller can also detect the condition execution instruction (being opened or closed) for judging each electrical component by remote signalling
With own health degree.
It, can be by charging major loop and charge control by miniature circuit breaker connected to the controller in charge control loop
Circuit is separately controlled, for example, can be realized by miniature circuit breaker when needing to power off controller.Accessory power supply is for being
Charge control loop provides 12V power supply.Further, increased fastp-acting fuse is to avoid because of insulation reduction or other designs
Defect, the low pressure of the high pressure and accessory power supply output that lead to charging major loop direct current output, which is shorted together, causes accessory power supply to burn
The safety accidents such as ruin, to protect the safety of charge control loop.
In addition, also increasing control guiding protective in control major loop, being used for real-time detection charging connecting device (charging gun)
With the connection status of electric car.Once detecting that connection is abnormal, controller will control stops output immediately, and records in failure
Send main website.
The working principle of the non-on-board charger described in embodiment is briefly described below:
Standby operation: to respond energy-saving and emission-reduction, A.C. contactor and D.C. contactor are in an off state, and charge major loop
It is not turned on, charging module power loss, in charge control major loop, controller and uplink communication unit are kept powered on, and controller passes through
Uplink communication unit uploads related data information in interlock circuit to main website immediately, main operating status including circuit and some
Unusual condition, for example, the communication of alternating current-direct current electric energy meter, scram button state etc., so that entire stand-by power consumption is in floor level.
Meanwhile controller also can remote signalling detect the health status of electrical component connected to it, once detected that device is glutinous glutinous, will lead to
It crosses human-computer interaction interface connected to it and shows failure at once, and order charger stops charging service, while logical by uplink
Believe unit Shang Song main website, has prevented well as a result, because of the glutinous security risk that may cause of device.
The Insulation monitoring stage: increase Insulation monitoring link before starting is charged.At this point, A.C. contactor and D.C. contactor
It is closed, insulation detecting circuit can detect the insulation values of entire charger, only be all satisfied in the insulation values detected
Standard requirements (GB/T 18487.1-2015 Appendix B) can just allow charger to carry out next step movement, otherwise stop charging immediately
Service.After the completion of Insulation monitoring, Insulation monitoring is separated from forceful electric power circuit in a manner of physics, and put into leadage circuit pair
Charging output voltage is released, and is loaded generation voltge surge to Vehicular battery to avoid the high voltage of Insulation monitoring process, is led
Cell damage is caused even to burn.After Insulation monitoring is complete, D.C. contactor is disconnected.
As a preferred embodiment, after A.C. contactor closure, before Insulation monitoring, to prevent charging major loop from having short circuit
Point exists, and can set charging module and first export small voltage (50V or so), and current anomaly and confirmation fusing is not detected in controller
When device state is normal, it is further lifted voltage, to avoid because starting just big voltage output, in circuit and there are short dot,
Cause directly to puncture fuse, or damages other Important Components, or even the accident that causes casualties.
Pre-charging stage: in pre-charging stage, BMS does not transmit voltage requirements value also, and controller can detect vehicle electrical in advance
Cell voltage, in confirmation Vehicular battery, normally (i.e. confirmation cell voltage is greater than non-on-board charger minimum output voltage and is less than non-
Vehicular charger maximum output voltage) when, charger exports pre-charge pressure, in pre-charge pressure close to vehicle battery voltage detected value
Control D.C. contactor closure afterwards, is connected the DC loop of outlet side, i.e. entirely charging major loop conducting.
Charging stage: controller charges according to the battery charge requirement power adjustment charging module that vehicle BMS is sent in real time
Voltage and charging current, and it is exchanged with each other charged state.Controller will read the measure voltage & current value of direct current energy meter output
It is compared with the voltage and current output valve sent on charging module, to judge charging module output state and communications status, to protect
The safety for demonstrate,proving charging process carries out.In the process, by will be sent on the electrical energy meter electricity volt circuit detected value of reading, charging module
Voltage and current output valve and voltage and current requirements be compared, it is more accurate to be conducive to output data, and realize mistake
The screening of data.
In above process, all process connection status that non-on-board charger is detected by control guiding protective, preset
Three kinds of voltage status (12V, 6V and 4V) in the controller are in real time compared with virtual condition, once abnormal, hard stop is protected
Shield.It is required in national standard it should be noted that these three voltage status compare, details are not described herein again.
Charging terminates: command module shuts down first, when detecting that current value is less than 5A by direct current energy meter, disconnects direct current
Contactor then starts leadage circuit, and the residual voltage released on charging module finally disconnects A.C. contactor.In addition, charging
Machine should in time release to charging output voltage by leadage circuit, avoid causing electric shock to operator.Vent discharge
The parameter selection on road, which should ensure that, drops to 60V DC or less for module output voltage in 1 second after charging connecting device disconnection.With this
Meanwhile controller can by read direct current energy meter parameter, count and save every time charging after release process release the time and
Voltage after releasing, and this data is carried out to analyze and determine the conclusion for obtaining needs, it is wanted for example, whether leadage circuit meets national standard
It asks, can be to have according to the performance for judging leadage circuit, and to the type selecting of subsequent leadage circuit and improvement etc. with this further
There is certain guidance meaning.
As shown in connection with fig. 3, non-on-board charger disclosed in embodiment 1 increases multiple on the basis of traditional protection
Protection, to realize the multilevel redundancy protection of non-on-board charger.In the prior art, it generally (is equivalent to total by AC circuit breaker
Switch) realize earth leakage protective, realize by fuse (being equivalent to fuse) short-circuit protection, but to charging module itself and
The health degree etc. of each electrical component is not protected, and is at most also only shown to overcurrent or input and output over-voltage etc. are abnormal.
The present invention is on this basis: being used by AC energy meter and DC ammeter with hop controller, two kinds of electric energy meters will test
The data feedbacks such as voltage, electric current export to controller, the voltage of controller judgement charging major loop, current situation, such as go out
When phenomena such as existing input side voltage phase shortage, a certain phase voltage exception, outlet side overcurrent, controller can be according to pre-set demand
Threshold values issues halt instruction and cuts off related switch device, and this aspect improves the safety of use, and on the other hand can also mention
The service life of high associated electrical components.The leakage to its own is realized by selecting the charging module with multiple protective characteristic
The detection and protection of the unusual conditions such as electricity, electric voltage exception, overcurrent and short circuit, and controller can be reported to immediately to control non-vehicle
Charger is carried to stop providing charging service.The judgement of complete machine insulation performance is realized by insulation detecting circuit, and passes through leadage circuit
It releases after realizing insulation and shutdown is released.In addition, can also pass through contact feedback function that each electrical component has and controller
Remote signalling detection function monitors the state of each electrical component in real time, avoids bringing because of electrical component itself health status (such as glutinous)
Security risk.And in main control loop, major loop is kept apart with control loop by miniature circuit breaker, by quick
Fuse protects the affected by high that control loop is not exported, and is equipped with control guidance protection.
Thus, it will be seen that being protected from each dimension to charger by the circuit design of embodiment, formed more
Grade redundancy protecting mechanism, greatly promotes the safety of charger and use process, complies fully with GB/T18487.1-2015 to electricity
Electrical automobile conduct charging system requirement, while can also be more accurate judgement equipment running status and more stably execute guarantor
Shield measure, to improve the completeness of electric security protector, real-time, accuracy and environmental suitability.
The preferable specific embodiment of the above, only the application, but the protection scope of the application is not limited thereto,
Within the technical scope of the present application, any changes or substitutions that can be easily thought of by anyone skilled in the art,
Should all it cover within the scope of protection of this application.Therefore, the protection scope of the application should be with scope of protection of the claims
Subject to.
Claims (9)
1. a kind of reliable non-on-board charger of high safety, which is characterized in that including charging major loop and charge control loop；
Charging major loop includes AC energy meter, the AC circuit breaker, friendship of charging module and the electrical connection of charging module input side
Flow contactor, fuse, direct current energy meter and the D.C. contactor of the electrical connection of charging module outlet side；The AC energy meter and
Direct current energy meter is respectively used to the voltage and current value of detection charging module input side and charging module outlet side and is sent to control
Device；The A.C. contactor and D.C. contactor are respectively used to control charging module input lateral circuit and export the logical of lateral circuit
It is disconnected；
Charge control loop includes controller, output relay connected to the controller and powers for charge control loop auxiliary
Power supply is helped, controller is electrically connected with AC energy meter, A.C. contactor, direct current energy meter and D.C. contactor, is filled for controlling
Electric major loop working condition.
2. non-on-board charger as described in claim 1, which is characterized in that the AC circuit breaker, fuse, ac contactor
Device and D.C. contactor all have contact feedback function；The controller has remote signalling detection function, has contact anti-with detection
Present the health status of the electrical component of function.
3. non-on-board charger as described in claim 1, which is characterized in that charging module outlet side further includes Insulation monitoring electricity
Road and leadage circuit, the non-on-board charger insulation performance before the insulation detecting circuit is used to be pre-charged judges, described to release
Voltage after voltage of the circuit for after Insulation monitoring releases and charges is released.
4. non-on-board charger as claimed in claim 3, which is characterized in that the input terminal of AC energy meter passes through power supply interface
It is connect with external ac power source, the output end of AC energy meter is sequentially connected AC circuit breaker, A.C. contactor and charging module
Input terminal；The output end of charging module is sequentially connected fuse, leadage circuit, insulation detecting circuit, direct current energy meter and straight
Contactor is flowed, the output end of D.C. contactor is connect by charging interface with electric car.
5. non-on-board charger as described in claim 1, which is characterized in that charge control loop further includes for controlling charging
The miniature circuit breaker of control loop on-off.
6. non-on-board charger as claimed in claim 5, which is characterized in that the miniature circuit breaker has earth leakage protective function
Can, when leak current fault occurs to detect charge control loop, carry out trip protection.
7. non-on-board charger as described in claim 1, which is characterized in that the charge control loop further include with output after
The fastp-acting fuse of electrical output terminal electrical connection.
8. non-on-board charger as described in claim 1, which is characterized in that further include that control guiding connected to the controller is protected
Protection circuit.
9. the non-on-board charger as described in claim 1 to 8 is any one, which is characterized in that the charging module carries multiple
Short-circuit protection before defencive function, including the protection of earth leakage protective, electric voltage exception, overcurrent protection and starting.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109606153A (en) * | 2019-01-17 | 2019-04-12 | 上海爱驱汽车技术有限公司 | One kind, which is filled, awards electric integrated hybrid power electric car |
| CN109831014A (en) * | 2019-02-21 | 2019-05-31 | 江苏安方电力科技有限公司 | Non-on-board charger charging circuit and its leadage circuit switching sequential control method |
| CN110165737A (en) * | 2019-05-30 | 2019-08-23 | 北京海益同展信息科技有限公司 | Charging unit and charging pile |
| CN111422098A (en) * | 2020-03-10 | 2020-07-17 | 深圳市德塔防爆电动汽车有限公司 | Safety management method and system for explosion-proof automobile battery |
| CN111452665A (en) * | 2020-05-25 | 2020-07-28 | 南京能瑞电力科技有限公司 | Intelligent charging and battery replacing cabinet for electric bicycle |
| CN112477669A (en) * | 2020-12-25 | 2021-03-12 | 深圳市永联科技股份有限公司 | Fault self-recognition protection method for charging module output key device |
| CN112498167A (en) * | 2020-12-10 | 2021-03-16 | 国网智慧能源交通技术创新中心(苏州)有限公司 | Charging method and charging system for battery replacing box |
| CN113625040A (en) * | 2021-07-29 | 2021-11-09 | 科大智能（合肥）科技有限公司 | Direct current fills electric pile output short circuit detection module and fills electric pile |
| CN113765182A (en) * | 2021-08-31 | 2021-12-07 | 长春捷翼汽车零部件有限公司 | Electric shock prevention control method, electric shock prevention control circuit, electric shock prevention control device, medium, charging device and vehicle |
| CN115065119A (en) * | 2022-06-29 | 2022-09-16 | 陕西光德分布式电站技术有限公司 | No-load active main loop power supply cutting-off system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109606153A (en) * | 2019-01-17 | 2019-04-12 | 上海爱驱汽车技术有限公司 | One kind, which is filled, awards electric integrated hybrid power electric car |
| CN109831014A (en) * | 2019-02-21 | 2019-05-31 | 江苏安方电力科技有限公司 | Non-on-board charger charging circuit and its leadage circuit switching sequential control method |
| CN110165737A (en) * | 2019-05-30 | 2019-08-23 | 北京海益同展信息科技有限公司 | Charging unit and charging pile |
| CN111422098A (en) * | 2020-03-10 | 2020-07-17 | 深圳市德塔防爆电动汽车有限公司 | Safety management method and system for explosion-proof automobile battery |
| CN111452665A (en) * | 2020-05-25 | 2020-07-28 | 南京能瑞电力科技有限公司 | Intelligent charging and battery replacing cabinet for electric bicycle |
| CN111452665B (en) * | 2020-05-25 | 2021-09-24 | 南京能瑞电力科技有限公司 | Intelligent charging and battery replacing cabinet for electric bicycle |
| CN112498167A (en) * | 2020-12-10 | 2021-03-16 | 国网智慧能源交通技术创新中心(苏州)有限公司 | Charging method and charging system for battery replacing box |
| CN112477669A (en) * | 2020-12-25 | 2021-03-12 | 深圳市永联科技股份有限公司 | Fault self-recognition protection method for charging module output key device |
| CN112477669B (en) * | 2020-12-25 | 2022-04-26 | 深圳市永联科技股份有限公司 | Fault self-recognition protection method for charging module output key device |
| CN113625040A (en) * | 2021-07-29 | 2021-11-09 | 科大智能（合肥）科技有限公司 | Direct current fills electric pile output short circuit detection module and fills electric pile |
| CN113765182A (en) * | 2021-08-31 | 2021-12-07 | 长春捷翼汽车零部件有限公司 | Electric shock prevention control method, electric shock prevention control circuit, electric shock prevention control device, medium, charging device and vehicle |
| CN115065119A (en) * | 2022-06-29 | 2022-09-16 | 陕西光德分布式电站技术有限公司 | No-load active main loop power supply cutting-off system |
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