CN206524665U - A kind of auxiliary power supply circuit and electric power system applied to charging pile - Google Patents
A kind of auxiliary power supply circuit and electric power system applied to charging pile Download PDFInfo
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- CN206524665U CN206524665U CN201621213846.4U CN201621213846U CN206524665U CN 206524665 U CN206524665 U CN 206524665U CN 201621213846 U CN201621213846 U CN 201621213846U CN 206524665 U CN206524665 U CN 206524665U
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- power
- charging pile
- auxiliary
- power supply
- direct current
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S30/00—Systems supporting specific end-user applications in the sector of transportation
- Y04S30/10—Systems supporting the interoperability of electric or hybrid vehicles
- Y04S30/12—Remote or cooperative charging
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model provides a kind of auxiliary power supply circuit and electric power system applied to charging pile, the auxiliary power supply circuit includes AC circuit breaker, the main power model of charging pile, K1 direct current main contactors, first micro- disconnected and the second micro- disconnected, the normally opened auxiliary contact of K2 and K2 normally closed auxiliary contact, K1 normally closed auxiliary contacts, K2 power switches relay, power panel motherboard.The power supply circuit uses the scheme of alternating current-direct current redundant power supply, when exchange has electricity, powered separately through exchange to whole charging pile control system, during AC dump, direct current (energy stored using bus capacitor) can be switched at once to power to whole charging pile control system, and continue for some time, then the complete power down of whole control system.The power source design alternating current-direct current redundant power supply, direct current power taking does not work when normal, while can compatible two kinds of BMS voltage class, definitely solve to run into some problems in product practical application.
Description
Technical field
The utility model is related to electric and electronic technical field, more particularly to a kind of auxiliary power supply circuit for charging pile and
Electric power system, for providing a kind of system schema of auxiliary power supply to charging pile.
Background technology
Recently, country has formulated the new national standard of charging pile industry to promote the development of charging electric vehicle facility
(2015), also for unified interface and charging method, it is easy to the healthy and stable development of industry.
At present, charging gun on the market is substantially new national standard, the consideration based on safety, and the charging gun of new national standard is band
There is electronic lock, the locking signal of electronic lock is positive pulse, and unlocking signal is negative pulse.When electric automobile is in charging, power network
Unexpected power down, auxiliary power supply system also can power down, now charging pile control panel can not send the unlocking signal of charging gun electronic lock,
Electric automobile will be connected with charging gun always, it is impossible to be driven away.
Utility model content
In order to overcome above mentioned problem, the utility model provides a kind of auxiliary power supply scheme applied to charging pile, uses
The scheme of alternating current-direct current redundant power supply, when exchange has electricity, powers separately through exchange to whole charging pile control system, AC dump
When, direct current (energy stored using bus capacitor) can be switched at once and is powered to whole charging pile control system, and continues one
Section time, then the complete power down of whole control system.
The utility model provides a kind of auxiliary power supply circuit for charging pile, including AC circuit breaker, the main work(of charging pile
Rate module, K1 direct current main contactors, first is micro- disconnected and second micro- disconnected, and the normally opened auxiliary contact of K2 and K2 normally closed auxiliary contacts, K1 are normal
Close auxiliary contact, K2 power switching relay, power panel motherboard.
When exchanging electric, the coil of K2 power switching relay obtains electric, and K2 normally closed auxiliary contacts disconnect, K2 normally opened contacts
Closure, power panel motherboard measures electricity from exchange.
When exchanging dead electricity, K2 power switches the coil losing electricity of relay, and K2 normally-closed contacts closure, K2 normally opened contacts break
Open, power panel motherboard consumes the energy of the main power model median generatrix electric capacity storage of charging pile to maintain control from DC side power taking
Single board system is powered, and is continued for some time, until the power consumption that bus capacitor is stored is complete.
Wherein power panel motherboard includes exchange input and direct current input, and exchange input passes through first micro- disconnected and normally opened auxiliary of K2
Contact and K2 power switching relay are connected with AC circuit breaker and the main power model of charging pile, and the direct current of power panel motherboard is defeated
Enter by K2 normally closed auxiliary contacts, K1 normally closed auxiliary contacts and the second micro- disconnected and the main power model of charging pile and K1 direct current masters
Contactor is connected.
Wherein when direct current main contactor is closed, whole auxiliary power supply circuit can not be from DC side power taking.
A kind of charging pile auxiliary power supply system including above-mentioned power supply circuit is also provided, direct current can be provided when power network is abnormal
Charging pile is supplied electricity to, and sends the electronic lock that negative pulse unlocks charging pile.
The power source design alternating current-direct current redundant power supply, direct current power taking does not work when normal, while being capable of compatible two kinds of BMS voltages
Grade, definitely solves to run into some problems in product practical application.
Secondary power system of the present utility model possesses alternating current-direct current redundant power supply ability, can have at least following three kinds it is excellent
Gesture：
1) during unusual service condition, it ensure that control system not power down for a period of time.
2) during plant maintenance, a kind of loop that the secondary power system can release as bus capacitor energy, it is ensured that dimension
Shield personnel's personal safety.
3) output of two kinds of BMS power supplies of compatibility 12V and 24V, the adaptation of product and compatibility are stronger.
Brief description of the drawings
Fig. 1 is the system circuit diagram according to embodiment of the present utility model.
Embodiment
The utility model uses a kind of method similar to dual power supply power taking, during nominal situation, exchange individually power supply,
During power network powered-off fault, it is switched to direct current and individually powers.On the one hand, the energy stored by charging module dc-link capacitance come
Control system is maintained to power a period of time.On the other hand, the power consumption of control system load also serves as what bus capacitor energy was released
A kind of passage, it is ensured that the personal safety of attendant.Overcome the defect of some practical applications of existing mainstream technology on the market.
According to an embodiment of the present utility model, a kind of auxiliary power supply circuit applied to charging pile, including：
AC circuit breaker 1, the main power model 2 of charging pile, K1 direct currents main contactor 3, first micro- disconnected 4 and second micro- disconnected 6, K2
Normally opened auxiliary contact 5 and normally closed auxiliary contact 8, K1 normally closed auxiliary contacts 7, K2 power switching relay 9,48V and 24V power supplys
Plate motherboard 10,24V power panels 11,12V power panels 12.
Wherein the exchange input of power panel motherboard switches relay by the micro- disconnected normally opened auxiliary contact 5 of 4 and K2 and K2 power
Device 9 is connected with AC circuit breaker and the main power model of charging pile, and the direct current input of power panel motherboard passes through normally closed auxiliary contact 8,
K1 normally closed auxiliary contacts 7 and micro- disconnected 6 it is connected with the main power model of charging pile and K1 direct currents main contactor 3.
Alternating current-direct current power taking interlock logic circuit：Circuit includes direct current power taking air switch, and power switching relay, wide scope is defeated
The road out-put supply plate motherboards of Ru Qie bis-, hilted broadsword is double to hold switch, 12V power panels, 24V power panels etc..
Charger：Including DC charging module, exchange inputs breaker, direct current output contactor etc..
When exchanging electric, the coil of power switching relay obtains electric, and its normally-closed contact disconnects, normally opened contact closure, because
This power panel motherboard measures electricity from exchange, and the system loss of a part is not reduced yet from direct current power taking during normal work.
When exchanging dead electricity, power switches the coil losing electricity of relay, and its normally-closed contact closure, normally opened contact disconnects, because
This power panel motherboard consumes the energy of the main power model bus capacitor storage of charging pile to maintain to control veneer from DC side power taking
System power supply, and continue for some time, until the power consumption that bus capacitor is stored is complete.
When normal, AC circuit breaker 1 is closed, and power switching relay 9 obtains electric, and its normally-closed contact 8 disconnects, normally opened contact 5
Closure, now there is provided system supplymentary power supply from exchange power taking for power panel motherboard 10.
Power network powered-off fault disconnects AC circuit breaker 1 when safeguarding, power switches the coil losing electricity of relay 9, and its is normal
Closed contact 8 is closed, and normally opened contact 5 disconnects, now power panel is from direct current power taking, and the electric energy stored using dc-link capacitance is carried
For the power supply of system supplymentary power supply, a period of time is maintained until ruing out of the energy of electric capacity storage.Now, control system energy
Enough send negative pulse unblock electronic lock.
In order to prevent situation that K1 direct currents main contactor 3 occurs adhering or even damaged, system power supply plate is always using electronic
The battery of automobile maintains power supply, increases the K1 normally closed auxiliary contacts 7 of K1 direct currents main contactor 3 in direct current power taking loop, works as K1
When direct current main contactor is closed, whole secondary power system can not be from DC side power taking.
Above-mentioned embodiment be only it is exemplary the utility model is shown, be not intended to limit the utility model.It is right in addition
Belong to technology contents well known to those skilled in the art the step of being not described in.For covering in the utility model design
Interior corresponding conversion and change are in the range of the utility model.
Claims (4)
1. a kind of auxiliary power supply circuit for charging pile, it is characterized in that, it includes AC circuit breaker, the main power mould of charging pile
Block, K1 direct current main contactors, first is micro- disconnected and second micro- disconnected, and the normally opened auxiliary contact of K2 and K2 normally closed auxiliary contacts, K1 are normally closed auxiliary
Help contact, K2 power switching relay, power panel motherboard,
Wherein power panel motherboard includes exchange input and direct current input, and exchange input passes through first micro- disconnected and normally opened auxiliary contact of K2
And K2 power switching relay is connected with AC circuit breaker and the main power model of charging pile, the direct current input of power panel motherboard is logical
Cross K2 normally closed auxiliary contacts, K1 normally closed auxiliary contacts and the second micro- disconnected and the main power model of charging pile and K1 direct current main contactors
Connection,
When exchanging electric, the coil of K2 power switching relay obtains electric, and K2 normally closed auxiliary contacts are disconnected, and K2 normally opened contacts are closed
Close, power panel motherboard measures electricity from exchange,
When exchanging dead electricity, K2 power switches the coil losing electricity of relay, and K2 normally-closed contacts closure, K2 normally opened contacts disconnect, electricity
Source plate motherboard consumes the energy of the main power model median generatrix electric capacity storage of charging pile to maintain control veneer system from DC side power taking
System power supply, and continue for some time, until the power consumption that bus capacitor is stored is complete.
2. auxiliary power supply circuit according to claim 1, it is characterized in that, when K1 direct currents main contactor is closed, whole auxiliary is supplied
Circuit can not be from DC side power taking.
3. according to the auxiliary power supply circuit of claim 1 or 2, it is characterized in that, power panel motherboard is 48V and 24V power panel motherboards,
It is connected with 24V power panels and 12V power panels.
4. a kind of charging pile auxiliary power supply system of the auxiliary power supply circuit including claim 1, can be provided when power network is abnormal
Direct current supply sends the electronic lock in negative pulse unblock charging pile to charging pile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621213846.4U CN206524665U (en) | 2016-11-10 | 2016-11-10 | A kind of auxiliary power supply circuit and electric power system applied to charging pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621213846.4U CN206524665U (en) | 2016-11-10 | 2016-11-10 | A kind of auxiliary power supply circuit and electric power system applied to charging pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206524665U true CN206524665U (en) | 2017-09-26 |
Family
ID=59888240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621213846.4U Active CN206524665U (en) | 2016-11-10 | 2016-11-10 | A kind of auxiliary power supply circuit and electric power system applied to charging pile |
Country Status (1)
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| CN (1) | CN206524665U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106385093A (en) * | 2016-11-10 | 2017-02-08 | 深圳市永联科技股份有限公司 | Auxiliary power supply circuit applied on charging pile and auxiliary power supply system with same |
| CN108695972A (en) * | 2018-06-29 | 2018-10-23 | 蔚来汽车有限公司 | Electrical changing station controls switching circuit, system, method and the controller and medium of power supply |
| CN110350648A (en) * | 2019-06-27 | 2019-10-18 | 芜湖康爱而电气有限公司 | Dual power supply uninterruptible power system suitable for energy accumulation current converter |
| CN111082491A (en) * | 2019-12-30 | 2020-04-28 | 数源科技股份有限公司 | Expandable multifunctional electric control interlocking system |
| CN113872259A (en) * | 2020-06-30 | 2021-12-31 | 比亚迪股份有限公司 | Contactor, direct current distribution box and vehicle that charges |
-
2016
- 2016-11-10 CN CN201621213846.4U patent/CN206524665U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106385093A (en) * | 2016-11-10 | 2017-02-08 | 深圳市永联科技股份有限公司 | Auxiliary power supply circuit applied on charging pile and auxiliary power supply system with same |
| CN106385093B (en) * | 2016-11-10 | 2019-02-12 | 深圳市永联科技股份有限公司 | A kind of auxiliary power supply circuit and power-supply system applied to charging pile |
| CN108695972A (en) * | 2018-06-29 | 2018-10-23 | 蔚来汽车有限公司 | Electrical changing station controls switching circuit, system, method and the controller and medium of power supply |
| CN108695972B (en) * | 2018-06-29 | 2022-03-08 | 蔚来控股有限公司 | Switching circuit, system and method for controlling power supply of power changing station, controller and medium |
| CN110350648A (en) * | 2019-06-27 | 2019-10-18 | 芜湖康爱而电气有限公司 | Dual power supply uninterruptible power system suitable for energy accumulation current converter |
| CN111082491A (en) * | 2019-12-30 | 2020-04-28 | 数源科技股份有限公司 | Expandable multifunctional electric control interlocking system |
| CN113872259A (en) * | 2020-06-30 | 2021-12-31 | 比亚迪股份有限公司 | Contactor, direct current distribution box and vehicle that charges |
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