CN202206174U - Charger - Google Patents
Charger Download PDFInfo
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- CN202206174U CN202206174U CN2011203162495U CN201120316249U CN202206174U CN 202206174 U CN202206174 U CN 202206174U CN 2011203162495 U CN2011203162495 U CN 2011203162495U CN 201120316249 U CN201120316249 U CN 201120316249U CN 202206174 U CN202206174 U CN 202206174U
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Abstract
The utility model relates to a charger which comprises an AC input power supply, rectifier circuits, a power calibration circuit, DC-DC conversion circuits and a control circuit, wherein the output end of the AC input power supply is connected with the input end of one or multiple rectifier circuits; each rectifier circuit comprises at least one output, and the output end of each rectifier circuit is connected with the input end of the power calibration circuit; the output end of the power calibration circuit is connected with the input end of the DC-DC conversion circuits; and the multiple DC-DC conversion circuits are connected in series. By adopting the low-voltage high-current high-power series connection power output mode, the utility model ensures the self current equilibrium of each power supply, greatly improves the working efficiency of the charger and lowers the cost.
Description
Technical field
The utility model relates to a kind of charger, particularly a kind of electric car charger.
Background technology
Along with popularizing of new forms of energy power technology, the novel electric vehicle that utilizes new energy technology invention in countries in the world gradually popularization come.Flourish along with new-energy automobile industry, countries in the world can appearance gradually be similar to present gas station, place------charging station that gas station is the same.In each such small station, all need a kind of conveniently fast charge equipment-----electric car charger.
The most modes that adopt high voltage, little current parallel of conventional electric-powered automobile charger, this mode cause the CURRENT DISTRIBUTION of each parallel connection power supply uneven easily, thereby influence charge efficiency.
Summary of the invention
The utility model main purpose is to address the above problem and is not enough, provides a kind of charge efficiency high, the good charger of current balance property of each road power supply.
For realizing above-mentioned purpose, the technical scheme of the utility model is:
A kind of charger comprises alternating current input power supplying, rectification circuit, power factor correction circuit, DC-DC translation circuit and control circuit; The output of said alternating current input power supplying is connected with the input of one or more said rectification circuit; The said rectification circuit in every road comprises the output of at least one road; Every road output is connected with the input of said power factor correction circuit; The output of said power factor correction circuit is connected with the input of said DC-DC translation circuit, and the said DC-DC translation circuit of multichannel is connected in series.
Further, said alternating current input power supplying is the three-phase four-wire system power supply, and said rectification circuit is corresponding to be made as three the tunnel, and the input of the said rectification circuit in every road connects with every output mutually of said alternating current input power supplying.
Further, said every road rectification circuit is supplied with 2 tunnel said power factor correction circuit and 2 tunnel said DC-DC translation circuits are connected in series.
Further, said DC-DC translation circuit is a full-bridge current DC-DC translation circuit.
Further, said control circuit comprises host computer and is used for the signal that receives is converted into the buffer circuit unit that multichannel isolation voltage signal and multichannel are isolated current signal.
Further, said buffer circuit unit employing optical coupling isolation circuit.
Further, said DC-DC translation circuit through being connected on the current sampling resistor RS in the circuit and being connected in parallel on the voltage sampling resistor RW in the circuit, is realized close-loop feedback control respectively.
Content to sum up, the charger that the utility model provided compared with prior art, has following advantage:
(1) the utility model has adopted the mode of the high-power series connection power supply output of low-voltage and high-current, and the electric current that can guarantee each road power supply is from balanced.And, can use low withstand voltage power device owing to adopted the mode of low-voltage series connection, can reduce cost.
(2) the utility model concussion frequency can reach 100KHz, and single channel voltage is DC30V-60V, and output voltage can be exported maximum current and can reach 100A according to uses of arranging in pairs or groups arbitrarily of user's needs, and efficient is higher.
(3) alternating current input power supplying of employing three-phase four-wire system 380V/50Hz, the three-phase symmetric design guarantees the harmony that three-phase is imported.
(4) control circuit is accomplished by ordinary PC+dedicated control circuit, realizes simply, can change charge parameter at any time according to actual conditions through program interface, adopts excellent optical coupling isolation circuit, isolates undistorted and can carry out linear dimensions adjustment.
(5) the utility model is of many uses, can be used for large-scale energy places such as electric automobile, industrial automation equipment, electroplating industry, cell degradation detection simultaneously.
Description of drawings
Fig. 1 is the circuit structure diagram of the utility model embodiment one;
Fig. 2 is the circuit structure diagram of the utility model embodiment two.
As depicted in figs. 1 and 2, alternating current input power supplying 1, rectification circuit 2, power factor correction circuit 3, DC-DC translation circuit 4, host computer 5, buffer circuit unit 6.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail:
Embodiment one:
As shown in Figure 1, a kind of charger comprises alternating current input power supplying 1, rectification circuit 2, power factor correction circuit 3, DC-DC translation circuit 4 and control circuit.
Alternating current input power supplying 1 adopts the 220V alternating current input power supplying; The output of alternating current input power supplying 1 inserts No. one rectification circuit 2, and rectification circuit 2 is rectified into direct current with the 220V electric main, one or more output of the branch of rectification circuit 2; Divide four tunnel outputs in the present embodiment; Each output is connected with the input of one tunnel power factor correction circuit 3, and the output of power factor correction circuit 3 is connected with the input of DC-DC translation circuit 4 again, and 4 road DC-DC translation circuits 4 are connected in series.DC-DC translation circuit 4 is converted into the voltage that is fit to charging with the direct current that receives, and guarantees the stable of output voltage.
For reducing electromagnetic interference, further increase work efficiency, in the present embodiment, the DC-DC translation circuit 4 preferred full-bridge current DC-DC translation circuits that adopt.
Control circuit comprises host computer 5 and buffer circuit unit 6; Host computer 5 is set working procedure; Buffer circuit unit 6 is used for that the signal that receives from host computer 5 is converted into 4 road constant isolation voltage signals and 4 tunnel and isolates current signal output; Control the output voltage height, charging current size of above-mentioned 4 road DC-DC translation circuits 4, the setup parameters such as time of opening and closing respectively;, just can change charge parameter at any time through the program interface of host computer 5 according to actual conditions, simple to operation.In the present embodiment, buffer circuit unit 6 adopts optical coupling isolation circuits, isolates undistorted and can carry out linear dimensions adjustment.
DC-DC translation circuit 4 to parameters such as host computer 5 feedback sample electric currents and sampling voltages, thereby is realized close-loop feedback control respectively through being connected on the current sampling resistor RS in the circuit and being connected in parallel on the voltage sampling resistor RW in the circuit.
Present embodiment; Its single channel voltage is designed between the DC30V-60V; Because be the series connection of 4 road DC-DC translation circuits 4, the output voltage of this charger can be between 120V-240V according to uses of arranging in pairs or groups arbitrarily of user's needs, export maximum current and can reach 100A; The concussion frequency can reach 100KHz, increases substantially the operating efficiency of charger.Present embodiment has adopted the mode of the high-power series connection power supply output of low-voltage and high-current, and the electric current that can guarantee each road power supply is from balanced.And, can use low withstand voltage power device owing to adopted the mode of low-voltage series connection, can reduce cost.
Embodiment two:
As shown in Figure 2, a kind of charger comprises alternating current input power supplying 1, rectification circuit 2, power factor correction circuit 3, DC-DC translation circuit 4 and control circuit.
Alternating current input power supplying 1 adopts the alternating current input power supplying of three-phase four-wire system 380V/50Hz; Alternating current input power supplying 1 minute A-N, B-N, C-N three-phase are exported, and every phase output terminal inserts No. one rectification circuit 2, has No. 3 rectification circuits 2 altogether; Rectification circuit 2 is rectified into direct current with AC power; 2 tunnel power factor correction circuit 3 supplied with by every road rectification circuit 2 and 2 road DC-DC translation circuits 4 are connected in series, and is provided with 6 road DC-DC translation circuits, 4,6 road DC-DC translation circuits 4 altogether and is connected in series.DC-DC translation circuit 4 is converted into the voltage that is fit to charging with the direct current that receives, and guarantees the stable of output voltage.Present embodiment adopts the three-phase symmetric design, guarantees the harmony of three-phase input.
For reducing electromagnetic interference, further increase work efficiency, in the present embodiment, the DC-DC translation circuit 4 preferred full-bridge current DC-DC translation circuits that adopt.
Control circuit comprises host computer 5 and buffer circuit unit 6; Host computer 5 is set working procedure; Buffer circuit unit 6 is used for that the signal that receives from host computer 5 is converted into 6 road constant isolation voltage signals and 6 tunnel and isolates current signal output; Control the output voltage height, charging current size of above-mentioned 6 road DC-DC translation circuits 4, the setup parameters such as time of opening and closing respectively;, just can change charge parameter at any time through the program interface of host computer 5 according to actual conditions, simple to operation.In the present embodiment, buffer circuit unit 6 adopts optical coupling isolation circuits, isolates undistorted and can carry out linear dimensions adjustment.
DC-DC translation circuit 4 to parameters such as host computer 5 feedback sample electric currents and sampling voltages, thereby is realized close-loop feedback control respectively through being connected on the current sampling resistor RS in the circuit and being connected in parallel on the voltage sampling resistor RW in the circuit.
Present embodiment; Its single channel voltage is designed between the DC30V-60V; Because be the series connection of 6 road DC-DC translation circuits 4, the output voltage of this charger can be between 180V-360V according to uses of arranging in pairs or groups arbitrarily of user's needs, export maximum current and can reach 100A; The concussion frequency can reach 100KHz, increases substantially the operating efficiency of charger.Present embodiment has adopted the mode of the high-power series connection power supply output of low-voltage and high-current, and the electric current that can guarantee each road power supply is from balanced.And, can use low withstand voltage power device owing to adopted the mode of low-voltage series connection, can reduce cost.
As stated, in conjunction with accompanying drawing and the given scheme content of embodiment, can derive the similar techniques scheme.In every case be the content that does not break away from the utility model technical scheme, to any simple modification, equivalent variations and modification that above embodiment did, all still belong in the scope of the utility model technical scheme according to the technical spirit of the utility model.
Claims (7)
1. a charger is characterized in that: comprise alternating current input power supplying, rectification circuit, power factor correction circuit, DC-DC translation circuit and control circuit;
The output of said alternating current input power supplying is connected with the input of one or more said rectification circuit; The said rectification circuit in every road comprises the output of at least one road; Every road output is connected with the input of said power factor correction circuit; The output of said power factor correction circuit is connected with the input of said DC-DC translation circuit, and the said DC-DC translation circuit of multichannel is connected in series.
2. charger according to claim 1 is characterized in that: said alternating current input power supplying is the three-phase four-wire system power supply, and said rectification circuit is corresponding to be made as three the tunnel, and the input of the said rectification circuit in every road connects with every output mutually of said alternating current input power supplying.
3. charger according to claim 1 and 2 is characterized in that: 2 tunnel said power factor correction circuit supplied with by said every road rectification circuit and 2 tunnel said DC-DC translation circuits are connected in series.
4. charger according to claim 1 is characterized in that: said DC-DC translation circuit is a full-bridge current DC-DC translation circuit.
5. charger according to claim 1 is characterized in that: said control circuit comprises host computer and is used for the signal that receives is converted into the buffer circuit unit of multichannel isolation voltage signal and multichannel isolation current signal.
6. charger according to claim 5 is characterized in that: said buffer circuit unit adopts optical coupling isolation circuit.
7. charger according to claim 1 is characterized in that: said DC-DC translation circuit through being connected on the current sampling resistor RS in the circuit and being connected in parallel on the voltage sampling resistor RW in the circuit, is realized close-loop feedback control respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203162495U CN202206174U (en) | 2011-08-27 | 2011-08-27 | Charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203162495U CN202206174U (en) | 2011-08-27 | 2011-08-27 | Charger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202206174U true CN202206174U (en) | 2012-04-25 |
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ID=45970270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203162495U Expired - Lifetime CN202206174U (en) | 2011-08-27 | 2011-08-27 | Charger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202206174U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106183880A (en) * | 2016-09-12 | 2016-12-07 | 山东优赛新能源科技有限公司 | Electric automobile building block system direct-current charging post and application thereof |
-
2011
- 2011-08-27 CN CN2011203162495U patent/CN202206174U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106183880A (en) * | 2016-09-12 | 2016-12-07 | 山东优赛新能源科技有限公司 | Electric automobile building block system direct-current charging post and application thereof |
| CN106183880B (en) * | 2016-09-12 | 2019-03-19 | 山东优赛新能源科技有限公司 | Electric car building block system direct-current charging post and its application |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120425 |