CN204761051U - Electric vehicle charger - Google Patents
Electric vehicle charger Download PDFInfo
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- CN204761051U CN204761051U CN201520288366.3U CN201520288366U CN204761051U CN 204761051 U CN204761051 U CN 204761051U CN 201520288366 U CN201520288366 U CN 201520288366U CN 204761051 U CN204761051 U CN 204761051U
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 19
- 238000001914 filtration Methods 0.000 claims abstract description 15
- 230000005611 electricity Effects 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000001012 protector Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The utility model provides an electric vehicle charger belongs to the electric automobile field of charging. This electric vehicle charger mainly includes rectifier, filter circuit, power conversion circuit, output display circuit, and through adding the harmonic filter circuit that is become by parallelly connected inductor group who has electric capacity of series resistance between single phase alternating current electricity input and the rectifier, the filtering is single -phase and threephase commutate filtering produces harmonic component solves among the prior art electric vehicle charger and has too big the charging of causing of harmonic distortion quick -witted power conversion circuit 0 reduces, the reliability reduces the scheduling problem. The utility model provides an electric vehicle charger has the advantage that harmonic distortion is low, power factor is high, the reliability is high.
Description
Technical field
The utility model relates to charging electric vehicle field, is specifically related to a kind of electric automobile battery charger.
Background technology
The electric energy of electric automobile consumption belongs to secondary energy sources, and the electric energy used now mainly obtains from coal and water energy, but along with the progress of science and technology, by more obtaining from the clean energy resource such as nuclear energy, wind energy, greatly reduces the dependence of automobile to oil.Meanwhile, the Appropriate application of the multiple energy, makes energy resource structure be improved, and decreases the pressure that oil uses.In the face of increasingly serious energy crisis and environmental pollution, the advantage of electric automobile in energy-saving and emission-reduction seems that the use of electric automobile will be more and more universal more obviously with superior.
A large amount of uses of electric automobile, add the demand to electric automobile charging station.Charger is the important component part of electric automobile charging station; it is non-linear very strong load; use charger will produce harmonic wave to charging electric vehicle; reliability, jamming decision steady operation that harmonic wave can increase transmission line electric energy loss, affect power factor (PF), reduces relaying protection, extensive charging station runs and will produce a large amount of harmonic wave and affect operation of power networks.
Utility model content
For overcoming the deficiencies in the prior art, the purpose of this utility model is to provide a kind of electric automobile battery charger, by adding by capacitances in series harmonic filter circuit formed after being parallel with the inductance of resistance between the input and rectifier of each single-phase electricity, the harmonic component that the single-phase and three phase rectifier filtering of filtering produces, solves electric automobile battery charger in prior art and there is the excessive problem such as the reduction of charger power factor (PF), reliability reduction caused of harmonic distortion.
For achieving the above object, the utility model is achieved through the following technical solutions:
The utility model provides a kind of electric automobile battery charger, comprises rectifier, filter circuit, circuit for power conversion, output display circuit, for the harmonic filter circuit of the single-phase humorous wave interference of filtering; Described harmonic filter circuit comprises electric capacity C1, C2, C3, resistance R1, R2, R3 and inductance L 1, L2, L3, described electric capacity C1 and described inductance L 1 is in parallel, described electric capacity C2 and described inductance L 2 is in parallel, described electric capacity C3 and described inductance L 3 in parallel; Described electric capacity C1 is connected with one end of described resistance R1 with the first common port of described inductance L 1, and the other end of described resistance R1 is electrically connected with A cross streams; Described electric capacity C2 is connected with one end of described resistance R2 with the first common port of described inductance L 2, and the other end of described resistance R2 is electrically connected with B cross streams; Described electric capacity C3 is connected with one end of described resistance R3 with the first common port of described inductance L 3, and the other end of described resistance R3 is electrically connected with C cross streams; Described electric capacity C1 is connected with the input of described rectifier with the second common port of described inductance L 3 with the second common port of described inductance L 2, described electric capacity C3 respectively with the second common port of described inductance L 1, described electric capacity C2.
Electric automobile battery charger described in the utility model, described filter circuit comprises electric capacity C4, electric capacity C5, inductance L 4, first output of described rectifier is connected with one end of described electric capacity C4, one end of inductance L 4 respectively, described inductance L 4 other end is connected with one end of described electric capacity C5, the second output of described rectifier, the described electric capacity C4 other end, the described electric capacity C5 other end respectively with reference to hold and be connected; Described inductance L 4 is connected described circuit for power conversion, described output display circuit successively with the common port of described electric capacity C5.
Electric automobile battery charger described in the utility model, also comprises output filter circuit, and described output filter circuit one end is connected with the output of described circuit for power conversion, the other end is connected with the input of described output display circuit.
Electric automobile battery charger described in the utility model, also comprises protecting control circuit, and described protecting control circuit on one side is connected with the common port of described electric capacity C5 with described inductance L 4, the other end is connected with the output of described output display circuit.
Electric automobile battery charger described in the utility model, described protecting control circuit includes but not limited to direct current output overvoltage, current foldback circuit, module over-temperature protection circuit.
Electric automobile battery charger described in the utility model, described output display circuit comprises charge parameter and arranges circuit and charge information display circuit.
Electric automobile battery charger described in the utility model, described charge parameter arrange circuit and described charge information display circuit including, but not limited to arrange and display charge capacity, charging initial time, the charging termination time, charging voltage.
Technique scheme of the present utility model has the following advantages compared to existing technology:
(1) electric automobile battery charger described in the utility model, mainly comprise rectifier, filter circuit, circuit for power conversion, output display circuit, by adding the harmonic filter circuit be made up of resistant series inductance being parallel with electric capacity between single phase alternating current (A.C.) electrical input and rectifier, the harmonic component that the single-phase and three phase rectifier filtering of filtering produces, solve electric automobile battery charger in prior art and there is the excessive charger power factor (PF) reduction caused of harmonic distortion, the problems such as reliability reduction, it is low that the electric automobile battery charger that the utility model provides has harmonic distortion, power factor (PF) is high, the advantage that reliability is high,
(2) electric automobile battery charger described in the utility model, output filter circuit is added between circuit for power conversion and output display circuit, described output filter circuit is used for circuit for power conversion described in filtering to the harmonic component produced in DC high-voltage power conversion process, the power factor (PF) of the humorous wave interference of further filtering, raising electric automobile battery charger;
(3) electric automobile battery charger described in the utility model; protecting control circuit is added between the common port and the output of output display of inductance L 4 and electric capacity C5; described protecting control circuit includes but not limited to direct current output overvoltage, current foldback circuit, module over-temperature protection circuit, makes electric automobile battery charger described in the utility model have the advantages such as direct current output overvoltage, overcurrent protection, module overheat protector.
Accompanying drawing explanation
In order to make content of the present utility model be more likely to be clearly understood, below according to specific embodiment of the utility model also by reference to the accompanying drawings, the utility model is described in further detail, wherein:
Fig. 1 is the schematic block circuit diagram of a kind of electric automobile battery charger that the utility model embodiment 1 provides;
Fig. 2 is the schematic block circuit diagram of a kind of electric automobile battery charger that the utility model embodiment 2 provides;
Fig. 3 is the schematic block circuit diagram of a kind of electric automobile battery charger that the utility model embodiment 3 provides.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearly, below in conjunction with accompanying drawing, execution mode of the present utility model is described in further detail.
Embodiment 1
As shown in Figure 1, the electric automobile battery charger that the utility model provides comprises rectifier 200, filter circuit 300, circuit for power conversion 400, output display circuit 500, and it also comprises the harmonic filter circuit 100 for the single-phase humorous wave interference of filtering.Harmonic filter circuit 100 comprises electric capacity C1, C2, C3, resistance R1, R2, R3 and inductance L 1, L2, L3, electric capacity C1 and inductance L 1 is in parallel, electric capacity C2 and inductance L 2 is in parallel, electric capacity C3 and inductance L 3 in parallel; Electric capacity C1 is connected with one end of resistance R1 with the first common port of inductance L 1, and the other end of resistance R1 is electrically connected with A cross streams; Electric capacity C2 is connected with one end of resistance R2 with the first common port of inductance L 2, and the other end of resistance R2 is electrically connected with B cross streams; Electric capacity C3 is connected with one end of resistance R3 with the first common port of inductance L 3, and the other end of resistance R3 is electrically connected with C cross streams; Second common port, the electric capacity C3 of the second common port of electric capacity C1 and inductance L 1, electric capacity C2 and inductance L 2 are connected with the input of rectifier 200 respectively with the second common port of inductance L 3.Filter circuit 300 comprises electric capacity C4, electric capacity C5, inductance L 4, first output of rectifier 200 is connected with one end of electric capacity C4, one end of inductance L 4 respectively, inductance L 4 other end is connected with one end of electric capacity C5, the second output of rectifier 200, the electric capacity C4 other end, the electric capacity C5 other end respectively with reference to hold and be connected; The common port of inductance L 4 and electric capacity C5, as high direct voltage VH output, connects circuit for power conversion 400, output display circuit 500 successively.
Circuit for power conversion 400 adopts full-bridge phase-shift soft switch technology, is sent to by energy secondary, high direct voltage VH is transformed into the DC voltage value U that charging electric vehicle needs by high frequency transformer isolation
o.
Output display circuit 500 comprises charge parameter and arranges circuit and charge information display circuit, exports the direct current constant current that charging electric vehicle needs; Charge parameter arranges circuit and charge information display circuit includes but not limited to charge capacity, charging initial time, charging termination time, charging voltage for setting and display.
The electric automobile battery charger that the present embodiment provides, by adding the harmonic filter circuit 100 be made up of resistant series inductance being parallel with electric capacity between single phase alternating current (A.C.) electrical input and rectifier 200, the harmonic component that the single-phase and three phase rectifier filtering of filtering produces, solve electric automobile battery charger and there is the excessive problem such as the reduction of charger power factor (PF), reliability reduction caused of harmonic distortion, there is the advantage that harmonic distortion is low, power factor (PF) is high, reliability is high.
Embodiment 2
As shown in Figure 2, the present embodiment provides a kind of electric automobile battery charger, as different from Example 1, the present embodiment comprises output filter circuit 600, and described output filter circuit 600 one end is connected with the output of circuit for power conversion 400, the other end is connected with the input of output display circuit 500.Output filter circuit 600 is added between circuit for power conversion 400 and output display circuit 500, for the harmonic component produced in filtering circuit for power conversion 400 pairs of DC high-voltage power conversion process, there is the humorous wave interference of further filtering, improve the advantage of the power factor (PF) of electric automobile battery charger.
Embodiment 3
As shown in Figure 3; the present embodiment provides a kind of electric automobile battery charger; as different from Example 2, the present embodiment comprises protecting control circuit 700, and described protecting control circuit 700 one end is connected with the common port of electric capacity C5 with inductance L 4, the other end is connected with the output of output display circuit 500.This protecting control circuit 700 includes but not limited to direct current output overvoltage, current foldback circuit, module over-temperature protection circuit, makes the electric automobile battery charger described in the present embodiment have the advantages such as direct current output overvoltage, overcurrent protection, module overheat protector.
Although embodiment of the present utility model is open as above, but it is not restricted to listed in specification and execution mode utilization, it can be applied to various applicable field of the present utility model completely, for those skilled in the art, can easily realize other amendment, therefore do not deviating under the universal that claim and equivalency range limit, the utility model is not limited to specific details and illustrates here and the legend described.
Claims (7)
1. an electric automobile battery charger, comprises rectifier, filter circuit, circuit for power conversion, output display circuit, it is characterized in that: also comprise the harmonic filter circuit for the single-phase humorous wave interference of filtering;
Described harmonic filter circuit comprises electric capacity C1, C2, C3, resistance R1, R2, R3 and inductance L 1, L2, L3, described electric capacity C1 and described inductance L 1 is in parallel, described electric capacity C2 and described inductance L 2 is in parallel, described electric capacity C3 and described inductance L 3 in parallel; Described electric capacity C1 is connected with one end of described resistance R1 with the first common port of described inductance L 1, and the other end of described resistance R1 is electrically connected with A cross streams; Described electric capacity C2 is connected with one end of described resistance R2 with the first common port of described inductance L 2, and the other end of described resistance R2 is electrically connected with B cross streams; Described electric capacity C3 is connected with one end of described resistance R3 with the first common port of described inductance L 3, and the other end of described resistance R3 is electrically connected with C cross streams; Described electric capacity C1 is connected with the input of described rectifier with the second common port of described inductance L 3 with the second common port of described inductance L 2, described electric capacity C3 respectively with the second common port of described inductance L 1, described electric capacity C2.
2. electric automobile battery charger as claimed in claim 1, it is characterized in that, described filter circuit comprises electric capacity C4, electric capacity C5, inductance L 4, first output of described rectifier is connected with one end of described electric capacity C4, one end of inductance L 4 respectively, described inductance L 4 other end is connected with one end of described electric capacity C5, the second output of described rectifier, the described electric capacity C4 other end, the described electric capacity C5 other end respectively with reference to hold and be connected; Described inductance L 4 is connected described circuit for power conversion, described output display circuit successively with the common port of described electric capacity C5.
3. electric automobile battery charger as claimed in claim 2, is characterized in that, also comprise output filter circuit, described output filter circuit one end is connected with the output of described circuit for power conversion, the other end is connected with the input of described output display circuit.
4. electric automobile battery charger as claimed in claim 3; it is characterized in that; also comprise protecting control circuit, described protecting control circuit on one side is connected with the common port of described electric capacity C5 with described inductance L 4, the other end is connected with the output of described output display circuit.
5. electric automobile battery charger as claimed in claim 4, it is characterized in that, described protecting control circuit includes but not limited to direct current output overvoltage, current foldback circuit, module over-temperature protection circuit.
6. the electric automobile battery charger as described in any one of claim 1-5, is characterized in that, described output display circuit comprises charge parameter and arranges circuit and charge information display circuit.
7. electric automobile battery charger as claimed in claim 6, is characterized in that, described charge parameter arrange circuit and described charge information display circuit including, but not limited to arrange and display charge capacity, charging initial time, the charging termination time, charging voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520288366.3U CN204761051U (en) | 2015-05-06 | 2015-05-06 | Electric vehicle charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520288366.3U CN204761051U (en) | 2015-05-06 | 2015-05-06 | Electric vehicle charger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204761051U true CN204761051U (en) | 2015-11-11 |
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ID=54475725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520288366.3U Active CN204761051U (en) | 2015-05-06 | 2015-05-06 | Electric vehicle charger |
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| Country | Link |
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| CN (1) | CN204761051U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106208290A (en) * | 2016-08-31 | 2016-12-07 | 苏州迈力电器有限公司 | Charging circuit for electric motor car |
| CN110228392A (en) * | 2019-06-20 | 2019-09-13 | 哈尔滨理工大学 | A kind of New-type charge system for electric car |
-
2015
- 2015-05-06 CN CN201520288366.3U patent/CN204761051U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106208290A (en) * | 2016-08-31 | 2016-12-07 | 苏州迈力电器有限公司 | Charging circuit for electric motor car |
| CN110228392A (en) * | 2019-06-20 | 2019-09-13 | 哈尔滨理工大学 | A kind of New-type charge system for electric car |
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