CN205104939U - Stake because charging station dc bus compensation formula direct current charges - Google Patents
Stake because charging station dc bus compensation formula direct current charges Download PDFInfo
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- CN205104939U CN205104939U CN201520855412.3U CN201520855412U CN205104939U CN 205104939 U CN205104939 U CN 205104939U CN 201520855412 U CN201520855412 U CN 201520855412U CN 205104939 U CN205104939 U CN 205104939U
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Abstract
The utility model provides a stake because charging station dc bus compensation formula direct current charges, includes switch circuit, isolation transformer, rectifier diode, direct current voltage transformer, direct current transformer and the rifle that charges, and switch circuit's power supply termination is on the dc bus, and switch circuit's output termination isolation transformer's is elementary, and isolation transformer's secondary and rectifier diode concatenate on the dc bus, rectifier diode's the termination of the being qualified for the next round of competitions rifle that charges, direct current transformer establishes ties on arbitrary dc bus, and the cross -over connection of direct current voltage transformer is between the dc bus. The utility model discloses a stake because charging station dc bus compensation formula direct current charges, because most power that charges provides by joining in marriage the dc bus that the electrical room rectification came out, switch circuit only provides the sub -fraction energy, and consequently, the switch circuit power of the stake of charging is very little, has reduced system loss, and fundamentally has solved radiating problem, and the reliability obtains improving simultaneously, and the cost is greatly reduced also.
Description
Technical field
The utility model relates to a kind of direct-current charging post, especially a kind of based on the compensation direct-current charging post of charging station DC bus.
Background technology
The Main way that electric automobile will be development of automobile from now on, what the development need construction of electric automobile was a large amount of fills electrical changing station.Fill electrical changing station most crucial be exactly charging pile, charging pile divides direct-current charging post and alternating-current charging pile.Conventional direct-current charging post includes control system, charge system, high-power ac-dc switching power, display system etc., its principle is that power distribution room is exported the 380V alternating current of coming, be rectified into the DC power supply adapting to this car and require according to the requirement of electric automobile, provide high-power quick charge to automobile batteries.Direct-current charging post be actually one high-power, and a DC power supply of accurate adjustment can be carried out to output voltage, electric current.
At present, the design of charging pile is all that AC power is carried out rectification, then carries out DC/DC conversion, is charged by charging gun to electric automobile.Whole power needs to be provided by the DC/DC module of charging pile inside.Direct-current charging post needs the power providing dozens or even hundreds of kilowatt, and therefore, the Switching Power Supply design of charging pile inside will be faced with many-sided difficult problems such as efficiency, heat radiation, stabilization, cost, reliability.
Summary of the invention
The purpose of this utility model is just to provide that a kind of system loss, good heat dissipation, cost are low, stable performance based on the compensation direct-current charging post of charging station DC bus.
Of the present utility model based on the compensation direct-current charging post of charging station DC bus, comprise switching circuit, isolating transformer, rectifier diode, DC voltage transformer, DC current transformer and charging gun, it is characterized in that, the power supply of switching circuit terminates on DC bus, the output termination isolating transformer of switching circuit elementary, secondary and the rectifier diode of isolating transformer is serially connected on DC bus, the outlet termination charging gun of rectifier diode; DC current transformer is connected on any DC bus, and switching circuit detects the charging current of DC bus in real time by DC current transformer, and DC voltage transformer is connected across between DC bus, detects charging voltage in real time.
Of the present utility model based on the compensation direct-current charging post of charging station DC bus, the DC power supply busbar voltage picked out due to power distribution room is a little less than the voltage needed for charging electric vehicle, therefore, electric energy is extracted from DC bus by switching circuit, produce a bucking voltage, be added on circuit by rectifier diode again after transformer isolation, charged to the energy-storage battery in automobile by charging gun.Switching circuit detects charging current in real time by DC current transformer, detects charging voltage in real time by DC voltage transformer, compares with the charging curve needed for electric automobile, feeds back to switching circuit and exports to provide best voltage.
Of the present utility model based on the compensation direct-current charging post of charging station DC bus, because most charge power is provided by power distribution room rectification DC bus out, switching circuit only provides sub-fraction energy, therefore, the switching circuit power of charging pile is very little, reduces system loss, fundamentally solves the problem of heat radiation, reliability is improved simultaneously, and cost also reduces greatly.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
1, positive DC bus, 2, negative DC bus, 3, isolating transformer, 4, switching circuit, 5, rectifier diode, 6, DC current transformer, 7, DC voltage transformer, 8, charging gun, 9, battery.
Embodiment
A kind of based on the compensation direct-current charging post of charging station DC bus, comprise switching circuit 4, isolating transformer 3, rectifier diode 5, DC voltage transformer 7, DC current transformer 6 and charging gun 8, it is characterized in that, the power supply of switching circuit 4 terminates on positive DC bus 1, negative DC bus 2, the output termination isolating transformer 3 of switching circuit 4 elementary, secondary and the rectifier diode 5 of isolating transformer 3 is serially connected on positive DC bus 1, the outlet termination charging gun 8 of rectifier diode 5; DC current transformer 6 is connected on any DC bus, and switching circuit 4 detects the charging current of DC bus in real time by DC current transformer, and DC voltage transformer 7 is connected across between positive and negative electrode DC bus, detects charging voltage in real time.
Claims (2)
1. one kind based on the compensation direct-current charging post of charging station DC bus, comprise switching circuit (4), isolating transformer (3), rectifier diode (5), DC voltage transformer (7), DC current transformer (6) and charging gun (8), it is characterized in that: the power supply of switching circuit (4) terminates at positive DC bus (1), on negative DC bus (2), the output termination isolating transformer (3) of switching circuit (4) elementary, secondary and the rectifier diode (5) of isolating transformer (3) is serially connected on positive DC bus (1), the outlet termination charging gun (8) of rectifier diode (5).
2. according to claim 1 based on the compensation direct-current charging post of charging station DC bus, it is characterized in that: DC current transformer (6) is connected on any DC bus, switching circuit (4) detects the charging current of DC bus in real time by DC current transformer (6), DC voltage transformer (7) is connected across between positive and negative electrode DC bus, detects charging voltage in real time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520855412.3U CN205104939U (en) | 2015-11-01 | 2015-11-01 | Stake because charging station dc bus compensation formula direct current charges |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520855412.3U CN205104939U (en) | 2015-11-01 | 2015-11-01 | Stake because charging station dc bus compensation formula direct current charges |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205104939U true CN205104939U (en) | 2016-03-23 |
Family
ID=55520695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520855412.3U Active CN205104939U (en) | 2015-11-01 | 2015-11-01 | Stake because charging station dc bus compensation formula direct current charges |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205104939U (en) |
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2015
- 2015-11-01 CN CN201520855412.3U patent/CN205104939U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230706 Address after: No. 61 Hushan Street, Shibandeng Street, Eastern New District, Chengdu, Sichuan Province, 610000 (self declared) Patentee after: Chengdu Juzi Semiconductor Co.,Ltd. Address before: Room 601, Unit 1, Building 2, Provincial Local Taxation Bureau Dormitory, No. 163, Zhanqian West Road, Nanchang City, Jiangxi Province 330002 Patentee before: Hu Dalin |