CN106340938A - AC charging pile with filtering and protection structure - Google Patents
AC charging pile with filtering and protection structure Download PDFInfo
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- CN106340938A CN106340938A CN201510413931.9A CN201510413931A CN106340938A CN 106340938 A CN106340938 A CN 106340938A CN 201510413931 A CN201510413931 A CN 201510413931A CN 106340938 A CN106340938 A CN 106340938A
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- charging pile
- pole
- filtering
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- 238000001914 filtration Methods 0.000 title claims abstract description 29
- 230000005540 biological transmission Effects 0.000 claims abstract description 25
- 239000003990 capacitor Substances 0.000 claims abstract description 9
- 230000005611 electricity Effects 0.000 claims description 33
- 238000003780 insertion Methods 0.000 claims description 6
- 230000037431 insertion Effects 0.000 claims description 6
- 239000000523 sample Substances 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 4
- 239000000284 extract Substances 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 4
- 206010014357 Electric shock Diseases 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 206010014405 Electrocution Diseases 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Abstract
The invention provides an AC charging pile with filtering and protection structures. The AC charging pile comprises a cabinet body, a charging circuit arranged in the cabinet body, and a power transmission interface used for plugging charged equipment, wherein the charging circuit is of a three-phase five-line structure, each phase line of the three-phase circuit is sequentially connected with a manual AC switch, an AC contactor, an incoming line electric reactor, an outgoing line electric reactor and a first pole of the power transmission interface, an arbitrary point between the incoming line electric reactor and the outgoing line electric reactor on each phase line is connected with one end of a third electric reactor, the other end of each third electric reactor is connected to one end of a capacitor, the other ends of the capacitors are connected with one another, and an arbitrary phase line of three phases of lines are sequentially connected to a controller of the corresponding AC contactor, a temperature switch, an emergency switch and a third pole of the power transmission interface after branching. The AC charging pile has the advantages of being capable of identifying charging capacity which can be provided by the charging pile, realizing a filter function, reducing the pollution of the charging equipment on a power grid, and achieving anti-electric-shock protection of an output end of the charge pile.
Description
[technical field]
The present invention relates to charging technique field, more particularly, to a kind of have filtering and protection for what electric motor car used
The alternating-current charging pile of structure.
[background technology]
Development of Electric Vehicles is swift and violent in recent years, has also driven the popularization and application of its supporting electrically-charging equipment, mesh simultaneously
Before, the vehicle-mounted battery of electric automobile charges and generally uses charging pile as charger.Existing charging pile is divided into friendship
Current charge stake and two kinds of direct-current charging post, user can according to the total capacity of its different automobile types or on-vehicle battery Lai
Select different charging piles.Wherein, alternating-current charging pile provides alternating current for the Vehicular charger of electric automobile,
Vehicular charger is reconverted into direct current and supplies electricity to charging on-vehicle battery.
Although existing alternating-current charging pile and direct-current charging post technology are all highly developed, alternating-current charging pile is big
Part is the single phase ac charging pile that power is below 10kw, is not suitable for high-power benefit charging electric car.If
Realize high-power charging, then need individually to develop ac plug and the socket of bigger through-current capability.
Additionally, existing alternating-current charging pile only provides the switching of alternating current, any process is not done to load current,
In charging process, produced harmonic wave directly can constitute severe contamination to electrical network, especially for utilizing motor
When the reverse rectification function of driver is to realize the scheme to charging electric vehicle, the harmonic wave that it produces is to electrical network
Pollution is bigger.Finally, also have some charging schemes, such as, directly with giving vehicle-mounted dc-dc after rectifier bridge rectification
Input, also can cause very big harmonic pollution to electrical network.After some charging piles supplier recognizes drawbacks described above,
Source filter would generally be added to the input of exchange stake, but the cost of this kind of mode is too high, is not suitable for large quantities of
Amount produces, and is also not easy to promote the use of.
In view of above drawback, be necessary in fact to provide a kind of alternating-current charging pile with filtering and safeguard structure with gram
Take the deficiencies in the prior art.
[content of the invention]
It is an object of the invention to provide a kind of design concept is ingenious, low manufacture cost, have filtering and anti-simultaneously
The alternating-current charging pile of protection structure.
To achieve these goals, the invention provides a kind of have the alternating-current charging pile filtering with safeguard structure,
Using three phase supply, this charging pile includes a cabinet, the interior charging circuit located at cabinet and for slotting quilt
The transmission of electricity interface of charger, wherein, transmission of electricity interface includes the first pole, the second pole and the 3rd pole,
Described charging circuit is Three-phase five-wire structure, and every phase line of wherein three-phase line is connected with manual exchange in turn and opens
Pass, A.C. contactor, the first pole of reactor, outlet reactor and transmission of electricity interface, described every phase
Any point between reactor on circuit and outlet reactor is connected to the one of one the 3rd reactor
End, the other end of this each the 3rd reactor connects to one end of a capacitor, each capacitor another
End is both connected to together, is sequentially connected to the control of A.C. contactor after arbitrary phase line branch of described triple line
Device, the 3rd pole of temperature switch, emergency switch and transmission of electricity interface.
There is a kind of improvement of the alternating-current charging pile of filtering and safeguard structure, described second pole as the present invention
Including two probes, between two probes on be in series with a detection resistance.
There is a kind of improvement of the alternating-current charging pile of filtering and safeguard structure, described Three-phase five-wire as the present invention
The 4th line in structure is zero line, and the 5th line connects to charging pile cabinet.
There is a kind of improvement of the alternating-current charging pile of filtering and safeguard structure, described 3rd pole as the present invention
With the free end of first and second pole not on same horizontal plane, and to be inserted to be electrically charged equipment when,
Three poles are later than other poles and connect and contacted with the conducting strip on the socket being electrically charged equipment.
There is a kind of improvement of the alternating-current charging pile of filtering and safeguard structure as the present invention, when transmission of electricity interface is inserted
Enter that during the socket of setting, first and second pole preferentially makes electrical contact with by fill device, with the increase of insertion depth,
3rd pole is just realized making electrical contact with, when the 3rd pole electrical contact, the controller of A.C. contactor be located
Road turns on, and controller will control three-phase line to turn on and realize charging.
There is a kind of improvement of the alternating-current charging pile of filtering and safeguard structure as the present invention, when transmission of electricity interface pulls out
Go out that during the socket of setting, the 3rd pole preferentially disconnects electrical connection, now, A.C. contactor by fill device
The branch road that controller is located is not turned on, and controller will control three-phase line conducting to realize power-off.
There is a kind of improvement of the alternating-current charging pile of filtering and safeguard structure, described detection resistance as the present invention
Big I according to charging pile allow provide peak load set.
There is a kind of improvement of the alternating-current charging pile of filtering and safeguard structure, described transmission of electricity interface as the present invention
May be designed as cradle or charging gun output.
Compared with prior art, the present invention has filtering and the alternating-current charging pile of safeguard structure has the advantage that
In: 1) by the control signal of its port, charger just can identify that the load that this charging pile can provide is held
Amount；2) pass through to increase l1, l2, l3 and cap1-3, realize filter function, reduce charger to electricity
The pollution of net；3) realize the electrocution-proof protection of charging pile outfan, when not plugging in rifle, the outfan of charging pile
Mouth does not have electricity.
[brief description]
Fig. 1 has the structural representation of the alternating-current charging pile of filtering and safeguard structure for the present invention.
[specific embodiment]
In order that the purpose of the present invention, technical scheme and Advantageous Effects become apparent from understanding, below in conjunction with
The drawings and specific embodiments, the present invention will be described in further detail.It should be appreciated that this explanation
Specific embodiment described in book is used for the purpose of explaining the present invention, is not intended to limit the present invention.
Refer to shown in Fig. 1, the invention provides a kind of alternating-current charging pile with filtering and safeguard structure,
Using three phase supply, this charging pile includes a cabinet (not shown), the interior charging circuit 10 located at cabinet with
And for being electrically charged the transmission of electricity interface 20 of equipment to inserting, wherein, transmission of electricity interface 20 include the first pole 21,
Second pole 22 and the 3rd pole 23, described charging circuit 10 is Three-phase five-wire structure, wherein three-phase line
Every phase line be connected with manual alternating-current switch 11, A.C. contactor 12 in turn, reactor l1, outlet electricity
Anti- device l2 and the first pole 21 of transmission of electricity interface 20, the reactor on described every phase line and outlet electricity
Any point between anti-device is connected to one end of one the 3rd reactor l3, this each the 3rd reactor l3's
Other end connects to one end of a capacitor cap1-3, and the other end of each capacitor is both connected to together,
It is sequentially connected to controller 121, the temperature switch of A.C. contactor after arbitrary phase line branch of described triple line
30th, the 3rd pole 23 of emergency switch 40 and transmission of electricity interface.So aforesaid reactor l1, outlet
Reactor l2, the 3rd reactor l3 and capacitor cap1-3 together constitute a filter circuit.
In the present invention, reactor l1 can isolate other higher hamonic waves in electrical network and enter, outlet electricity
Anti- device l2 is also used for changing the C-V characteristic of load, and the 3rd reactor l3 and electric capacity cap1-3 can shunt
Produced by load 5 times, 7 times and higher hamonic wave.
The present invention has the alternating-current charging pile of filtering and safeguard structure, is not inserted into being electrically charged equipment in transmission of electricity interface
Socket when, manual alternating-current switch, temperature switch and emergency switch are all in normally off, A.C. contactor
Switch be in normally open, now, the control signal of A.C. contactor is not turned on, therefore alternating-current charging pile
No exchange output, so can ensure that its safe handling.
The present invention has filtering and the alternating-current charging pile of safeguard structure is realized in work: when not transmitting electricity
When interface insertion is electrically charged the socket 50 of equipment, the coil of A.C. contactor km1 is off, this
Sample three-phase alternating current disconnects, and filter circuit does not access in electrical network yet, eliminates filter circuit itself under no-load condition
Impact to electrical network.Subsequently, when transmission of electricity interface insertion being electrically charged the socket of equipment (load), load
May determine that charging pile allows the peak load providing by the resistance detecting r1, if the maximum of charger
Load is less than the peak load that charging pile allows to provide, then charging pile works on, i.e. transmission of electricity interface insertion quilt
The socket of setting on fill device, first and second pole preferentially makes electrical contact with, with the increase of insertion depth, the 3rd
Pole is just realized making electrical contact with, and when the 3rd pole electrical contact, the branch road that the controller of A.C. contactor is located is led
Logical, controller will control three-phase line to turn on and realize charging；If the peak load of charger is higher than
Charging pile allows the peak load providing, then charging pile will send alarm signal, staff in time
The transmission of electricity interface of charging pile should be extracted immediately.
At the end of charging, staff should extract transmission of electricity interface from the socket being electrically charged equipment, now,
3rd pole cuts off electric current at first, leads to the coil of A.C. contactor km1 to be off, such three-phase
Circuit will cut off, and staff so can be prevented to be hindered by electric arc when extracting transmission of electricity interface, improve it
Security performance.
The present invention has filtering with the alternating-current charging pile of safeguard structure in charging process, in the event of fault,
Charging pile is led to generate heat, after thermal accumlation to uniform temperature, temperature switch just can disconnect in time, terminates filling
Electricity work, in particular cases, during because urgent, accident occurring, staff can also press tightly by hand
Anxious switch terminates charging work.
The present invention has the alternating-current charging pile of filtering and safeguard structure, is not restricted to description and embodiment party
Described in formula, for the personnel of familiar field, therefore it is easily achieved additional advantage and modification,
Therefore in the case of the spirit and scope of the general concept being limited without departing substantially from claim and equivalency range, this
Invention be not limited to specific details, representational equipment and shown here as with description examples shown.
Claims (8)
1. a kind of have filtering and safeguard structure alternating-current charging pile it is characterised in that: adopt three phase supply,
This charging pile includes a cabinet, the interior charging circuit located at cabinet and for the transmission of electricity inserting the equipment that is electrically charged
Interface, wherein, transmission of electricity interface includes the first pole, the second pole and the 3rd pole, and described charging circuit is
Every phase line of Three-phase five-wire structure, wherein three-phase line is connected with manual alternating-current switch, A.C. contactor in turn,
First pole of reactor, outlet reactor and transmission of electricity interface, the inlet wire reactance on described every phase line
Any point between device and outlet reactor is connected to one end of one the 3rd reactor, this each the 3rd reactance
The other end of device connects to one end of a capacitor, and the other end of each capacitor is both connected to together, institute
It is sequentially connected to the controller of A.C. contactor, temperature switch, urgent after the arbitrary phase line branch stating triple line
Switch and the 3rd pole of transmission of electricity interface.
2. as claimed in claim 1 have filtering and safeguard structure alternating-current charging pile it is characterised in that:
Described second pole includes two probes, between two probes on be in series with a detection resistance.
3. as claimed in claim 1 have filtering and safeguard structure alternating-current charging pile it is characterised in that:
The 4th line in described Three-phase five-wire structure is zero line, and the 5th line connects to charging pile cabinet.
4. as claimed in claim 1 have filtering and safeguard structure alternating-current charging pile it is characterised in that:
The free end of described 3rd pole and first and second pole is not on same horizontal plane, and filled to being inserted to
During electric equipment, the 3rd pole is later than other poles and connects and contacted with the conducting strip on the socket being electrically charged equipment.
5. as claimed in claim 1 have filtering and safeguard structure alternating-current charging pile it is characterised in that:
On interface insertion of transmitting electricity is by fill device during the socket of setting, first and second pole preferentially makes electrical contact with, with slotting
Enter the increase of depth, the 3rd pole is just realized making electrical contact with, when the 3rd pole electrical contact, A.C. contactor
The branch road conducting that controller is located, controller will control three-phase line to turn on and realize charging.
6. as claimed in claim 1 have filtering and safeguard structure alternating-current charging pile it is characterised in that:
When interface of transmitting electricity extracts the socket of setting on by fill device, the 3rd pole preferentially disconnects electrical connection, now,
The branch road that the controller of A.C. contactor is located is not turned on, and it is disconnected that controller will control three-phase line conducting to realize
Electricity.
7. as claimed in claim 1 have filtering and safeguard structure alternating-current charging pile it is characterised in that:
The big I of described detection resistance allows the peak load providing to be set according to charging pile.
8. the arbitrary alternating-current charging pile with filtering and safeguard structure as described in claim 1 to 7, it is special
Levy and be: described transmission of electricity interface may be designed as cradle or charging gun output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510413931.9A CN106340938A (en) | 2015-07-14 | 2015-07-14 | AC charging pile with filtering and protection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510413931.9A CN106340938A (en) | 2015-07-14 | 2015-07-14 | AC charging pile with filtering and protection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106340938A true CN106340938A (en) | 2017-01-18 |
Family
ID=57826347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510413931.9A Pending CN106340938A (en) | 2015-07-14 | 2015-07-14 | AC charging pile with filtering and protection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106340938A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202817688U (en) * | 2012-08-01 | 2013-03-20 | 华立仪表集团股份有限公司 | Power supply protection circuit of electric automobile charging pile and electric automobile charging pile |
| CN103138355A (en) * | 2011-11-24 | 2013-06-05 | 比亚迪股份有限公司 | Charge-discharge control system |
| CN205178605U (en) * | 2015-07-14 | 2016-04-20 | 深圳市沃特玛电池有限公司 | Alternating -current charging stake with filtering and protective structure |
-
2015
- 2015-07-14 CN CN201510413931.9A patent/CN106340938A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103138355A (en) * | 2011-11-24 | 2013-06-05 | 比亚迪股份有限公司 | Charge-discharge control system |
| CN202817688U (en) * | 2012-08-01 | 2013-03-20 | 华立仪表集团股份有限公司 | Power supply protection circuit of electric automobile charging pile and electric automobile charging pile |
| CN205178605U (en) * | 2015-07-14 | 2016-04-20 | 深圳市沃特玛电池有限公司 | Alternating -current charging stake with filtering and protective structure |
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