CN204559137U - A kind of pure electric vehicle DC charging interlocking control circuit - Google Patents
A kind of pure electric vehicle DC charging interlocking control circuit Download PDFInfo
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- CN204559137U CN204559137U CN201420757598.4U CN201420757598U CN204559137U CN 204559137 U CN204559137 U CN 204559137U CN 201420757598 U CN201420757598 U CN 201420757598U CN 204559137 U CN204559137 U CN 204559137U
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- charged state
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The utility model relates to a kind of pure electric vehicle DC charging interlocking control circuit, belongs to technical field of new energy.The utility model pure electric vehicle DC charging interlocking control circuit comprises charging gun, charging socket, discharge loop and is serially connected with the control of discharge branch road of electric discharge contactor coil, charged state detection branch confirms to hold with the connection of charging socket and is connected, auxiliary relay coil is serially connected with in charged state detection branch, the normally-closed contact of auxiliary relay is serially connected on control of discharge branch road, and the normally opened contact of electric discharge contactor is serially connected in discharge loop.The utility model detects the additional relay contacts on the charged state controlled discharge controlling brancher of vehicle by charged state detection branch, realize controlling discharge loop, discharge loop is disconnected when vehicle is in charged state, thus make to prevent automotive discharge when electric motor car is in charged state, realize discharge and recharge interlocking, to ensure personal safety.
Description
Technical field
The utility model relates to a kind of pure electric vehicle DC charging interlocking control circuit, belongs to technical field of new energy.
Background technology
At present, along with the pure electric coach that market is applied increases gradually, charging infrastructure also gets more and more, but, due to the diversity of charger and vehicle manufacturers, cause the state of charger and vehicle not completely unify.When charging to vehicle, when may occur that certain operations personnel fail to understand vehicle-state, start vehicle, thus cause unknown danger, injury.And may occur some vehicles and charger state inconsistent, mode of operation and the inconsistent accident caused of principle, cause unnecessary property loss, in order to ensure the vehicle being in charged state being perfectly safe to surrounding environment and personnel, need to carry out effective hardware controls to discharge and recharge interlocking.
Utility model content
The purpose of this utility model is to provide a kind of pure electric vehicle DC charging interlocking control circuit, to solve the problem of the person that current vehicle causes due to the inadaptability of misoperation or vehicle and charger when charging, equipment, vehicle injury.
The utility model is for solving the problems of the technologies described above and providing a kind of pure electric vehicle DC charging interlocking control circuit, this interlocking control circuit comprises charging gun, charging socket, charged state detection branch, discharge loop and is serially connected with the control of discharge branch road of electric discharge contactor coil, described charged state detection branch confirms to hold with the connection of charging socket and is connected, auxiliary relay coil is serially connected with in charged state detection branch, the normally-closed contact of auxiliary relay is serially connected on described control of discharge branch road, and the normally opened contact of described electric discharge contactor is serially connected in discharge loop.
Described interlocking control circuit also comprises charge circuit, is serially connected with the normally opened contact of charging contactor in this charge circuit, and described charging contactor is controlled by the low-voltage auxiliary electrical source of battery management system and charging gun.
Described charged state detection branch comprises divider resistance, power supply and testing circuit, and described divider resistance is connected with the CC2 of charging socket with after power series, and the CC2 of described charging socket is connected with testing circuit.
On described charging socket, low pressure accessory power supply anode, low pressure accessory power supply negative terminal, charging communication CAN_H end, charging communication CAN_L end are all connected with battery management system with protective grounding, for being obtained the charge information of charger by charging socket and charging gun.
The beneficial effects of the utility model are: the utility model pure electric vehicle DC charging interlocking control circuit comprises charging gun, charging socket, discharge loop and is serially connected with the control of discharge branch road of electric discharge contactor coil, charged state detection branch confirms to hold with the connection of charging socket and is connected, auxiliary relay coil is serially connected with in charged state detection branch, the normally-closed contact of auxiliary relay is serially connected on control of discharge branch road, and the normally opened contact of electric discharge contactor is serially connected in discharge loop.Detect vehicle by charged state detection branch and whether be in charged state, if be in, then this charged state detection branch conducting, namely the auxiliary relay coil be serially connected on this branch road obtains electric, the normally-closed contact be serially connected on control of discharge branch road is disconnected, thus make the electric discharge contactor coil dead electricity in control of discharge branch road, the normally opened contact of the electric discharge contactor then in discharge loop is in normally open, now, discharge loop is in off-state, thus make to prevent automotive discharge when electric motor car is in charged state, realize discharge and recharge interlocking, to ensure personal safety.
Accompanying drawing explanation
Fig. 1 is the circuit theory diagrams of the utility model pure electric vehicle DC charging interlocking control circuit.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is further described.
Pure electric vehicle DC charging interlocking control circuit provided by the utility model comprises charging gun, charging socket, discharge loop and is serially connected with the control of discharge branch road of electric discharge contactor coil, charged state detection branch confirms to hold with the connection of charging socket and is connected, auxiliary relay coil is serially connected with in charged state detection branch, the normally-closed contact of auxiliary relay is serially connected on control of discharge branch road, and the normally opened contact of electric discharge contactor is serially connected in discharge loop.Detect vehicle by charged state detection branch and whether be in charged state, if be in, then this charged state detection branch conducting, namely the auxiliary relay coil be serially connected on this branch road obtains electric, the normally-closed contact be serially connected on control of discharge branch road is disconnected, thus make the electric discharge contactor coil dead electricity in control of discharge branch road, the normally opened contact of the electric discharge contactor then in discharge loop is in normally open, now, discharge loop is in off-state, thus make to prevent automotive discharge when electric motor car is in charged state, realize discharge and recharge interlocking, to ensure personal safety.
Physical circuit in the present embodiment as shown in Figure 1, comprise charging gun 1, charging socket 2, by divider resistance 3, power supply 4 and testing circuit 5 form charged state detection branch, charge circuit, discharge loop, be serially connected with 9 charging controlling brancher of charging contactor coil and be serially connected with the control of discharge branch road of electric discharge contactor coil 10, divider resistance 3 is connected with the CC2 of power supply 4 with charging socket 2, the CC2 of charging socket is connected with testing circuit 5, the output of testing circuit 5 and auxiliary relay coil 11, the normally-closed contact of auxiliary relay is serially connected in control of discharge branch road, control of discharge props up route electric discharge contactor control signal, normally-closed contact and the electric discharge contactor coil 10 of auxiliary relay are in series, in the normally opened contact serial connection discharge loop of electric discharge contactor, discharge loop is made up of battery 7 and drive system, charging controlling brancher comprises charging contactor coil 9, charging contactor coil 9 one end is born to control to hold with BMS and is connected, the other end is connected with the low pressure accessory power supply anode (A+) of charging gun by charging socket 2, namely low pressure accessory power supply anode (A+) signal controlling of rifle 1 is inserted in the contact that charging contactor touches by battery management system 8 (bearing) and charging, the normally opened contact of charging contactor is serially connected in charge circuit, DC power supply anode (DC+) and the DC power supply negative terminal (DC-) of battery 7 and charging socket 2 connect and compose charge circuit, battery management system 8 inserts the low pressure accessory power supply anode of rifle 1 and charging socket 2 and charger by charging, low pressure accessory power supply negative terminal, charging communication CAN_H end, charging communication CAN_L end is connected with protective grounding, the information of carrying out transmission.
When the plug in rifle 1 that charges is connected with charging socket 2, the CC2 end of the resistance access charging socket 2 of rifle 1 is inserted in charging, whether testing circuit 5 is connected with charging socket 2 by detecting divider resistance 3 and the power supply 4 plug in rifle 1 that judges to charge, as reliable in connected, battery management system 8 detects after battery 7 is in chargeable state and makes BMS negative control signal effective, A+ powers to charging contactor 9 by charging socket 2, charging contactor 9 adhesive, testing circuit 5 will detect 6V voltage signal simultaneously, flash drive singal is exported to auxiliary relay 11 by testing circuit 5, after auxiliary relay 11 coil electricity, normally-closed contact disconnects.If now discharge, contactor 10 is in attracting state, after auxiliary relay 11 normally-closed contact disconnects, electric discharge contactor 10 disconnects, if electric discharge contactor 10 is in off-state, even if electric discharge contactor control signal is effective, electric discharge contactor 10 also can not adhesive, thus realizes avoiding automotive discharge under Vehicular charging state, achieves the interlocking of discharge and recharge.
Claims (4)
1. a pure electric vehicle DC charging interlocking control circuit, it is characterized in that, this interlocking control circuit comprises charging gun, charging socket, charged state detection branch, discharge loop and is serially connected with the control of discharge branch road of electric discharge contactor coil, described charged state detection branch confirms to hold with the connection of charging socket and is connected, auxiliary relay coil is serially connected with in charged state detection branch, the normally-closed contact of auxiliary relay is serially connected on described control of discharge branch road, and the normally opened contact of described electric discharge contactor is serially connected in discharge loop.
2. pure electric vehicle DC charging interlocking control circuit according to claim 1, it is characterized in that, described interlocking control circuit also comprises charge circuit, be serially connected with the normally opened contact of charging contactor in this charge circuit, described charging contactor is controlled by the low-voltage auxiliary electrical source of battery management system and charging gun.
3. pure electric vehicle DC charging interlocking control circuit according to claim 2, it is characterized in that, described charged state detection branch comprises divider resistance, power supply and testing circuit, described divider resistance is connected with the CC2 of charging socket with after power series, and the CC2 of described charging socket is connected with testing circuit.
4. pure electric vehicle DC charging interlocking control circuit according to claim 3; it is characterized in that; on described charging socket, low pressure accessory power supply anode, low pressure accessory power supply negative terminal, charging communication CAN_H end, charging communication CAN_L end are all connected with battery management system with protective grounding, for being obtained the charge information of charger by charging socket and charging gun.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420757598.4U CN204559137U (en) | 2014-12-05 | 2014-12-05 | A kind of pure electric vehicle DC charging interlocking control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420757598.4U CN204559137U (en) | 2014-12-05 | 2014-12-05 | A kind of pure electric vehicle DC charging interlocking control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204559137U true CN204559137U (en) | 2015-08-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420757598.4U Expired - Fee Related CN204559137U (en) | 2014-12-05 | 2014-12-05 | A kind of pure electric vehicle DC charging interlocking control circuit |
Country Status (1)
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| CN (1) | CN204559137U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105235523A (en) * | 2015-09-21 | 2016-01-13 | 郑州宇通客车股份有限公司 | Vehicle charging and travelling interlocking method |
| CN106143194A (en) * | 2016-07-11 | 2016-11-23 | 安庆新景技电子科技有限公司 | A kind of interlock switch loop for electric motor car |
| CN106160111A (en) * | 2016-08-09 | 2016-11-23 | 国网山东省电力公司临沂供电公司 | A kind of from conducting DC charging rifle and method of work thereof |
| CN109638932A (en) * | 2019-02-28 | 2019-04-16 | 郝蕾 | A kind of charge and discharge double interlock control circuit of electric car |
| CN113997827A (en) * | 2021-05-25 | 2022-02-01 | 南京金邦动力科技有限公司 | Charging loop of power battery system of railway vehicle |
-
2014
- 2014-12-05 CN CN201420757598.4U patent/CN204559137U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105235523A (en) * | 2015-09-21 | 2016-01-13 | 郑州宇通客车股份有限公司 | Vehicle charging and travelling interlocking method |
| CN106143194A (en) * | 2016-07-11 | 2016-11-23 | 安庆新景技电子科技有限公司 | A kind of interlock switch loop for electric motor car |
| CN106160111A (en) * | 2016-08-09 | 2016-11-23 | 国网山东省电力公司临沂供电公司 | A kind of from conducting DC charging rifle and method of work thereof |
| CN109638932A (en) * | 2019-02-28 | 2019-04-16 | 郝蕾 | A kind of charge and discharge double interlock control circuit of electric car |
| CN113997827A (en) * | 2021-05-25 | 2022-02-01 | 南京金邦动力科技有限公司 | Charging loop of power battery system of railway vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150812 Termination date: 20201205 |
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| CF01 | Termination of patent right due to non-payment of annual fee |