CN204145008U - A kind of controlled charging circuit used for electric vehicle - Google Patents
A kind of controlled charging circuit used for electric vehicle Download PDFInfo
- Publication number
- CN204145008U CN204145008U CN201420575725.9U CN201420575725U CN204145008U CN 204145008 U CN204145008 U CN 204145008U CN 201420575725 U CN201420575725 U CN 201420575725U CN 204145008 U CN204145008 U CN 204145008U
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- China
- Prior art keywords
- circuit
- charge
- main charging
- contactor
- normally closed
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- Expired - Lifetime
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- 238000007599 discharging Methods 0.000 claims abstract description 20
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The utility model provides a kind of controlled charging circuit used for electric vehicle, and it includes a quick discharging circuit, makes electric capacity C energy repid discharge after charging terminates.Wherein, the normal open switch in main charging contactor and pre-charge contactor is connected in series and described main charging circuit and pre-charge circuit respectively, and normally closed switch is then connected with resistance R2, and forms loop with electric capacity C.The utility model has that structure is simple, fail safe is high, can the advantage such as repid discharge.
Description
Technical field
The utility model relates to a kind of controlled charging circuit used for electric vehicle, especially in regard to quick discharging circuit wherein.
Background technology
Electric vehicle pre-charging road is before charging to battery; spark arcing when can first contact the few contactor of capacitor charging Yi Minus; increase safety; play the effect of protective circuit, then BMS (BATTERYMANAGEMENT SYSTEM) system can disconnect pre-charge-relay, closed charging main contactor.When charging terminates, BMS disconnects main contactor, now protects electric capacity not have loop, and electric discharge slowly.If this time has, people's will is external contacts electric capacity or high tension loop, will cause serious contingency.
Utility model content
The utility model provides that a kind of structure is simple, fail safe is high, can the used for electric vehicle controlled charging circuit of repid discharge.
For solving the problems of the technologies described above, the utility model adopts following technical scheme: a kind of controlled charging circuit used for electric vehicle, include the pre-charge circuit be connected with high voltage source, the main charging circuit in parallel with described pre-charge circuit, the rectification circuit, the electric capacity C in parallel with described rectification circuit that are connected in series with described pre-charge circuit and main charging circuit
It also includes pre-charge contactor, main charging contactor and quick discharging circuit, and described quick discharging circuit and described rectification circuit, electric capacity C are in parallel,
Described pre-charge contactor comprises normal open switch K3 and normally closed switch K1, and described normal open switch K3 is serially connected with described pre-charge circuit,
Described main charging contactor comprises normal open switch K4 and normally closed switch K2, and described normal open switch K4 is serially connected with described main charging circuit,
Described quick discharging circuit includes resistance R2, and in described resistance R2 and described pre-charge contactor, in normally closed switch K1 and described main charging contactor, normally closed switch K2 is connected in series,
During electric vehicle pre-charging, the normal open switch K3 of described pre-charge contactor closes, and normally closed switch K1 opens, and pre-charge circuit is communicated with, and quick discharging circuit disconnects, and starts to charge to electric capacity C;
After precharge terminates, pre-charge contactor resets, and electric automobile starts main charging circuit, and the normal open switch K4 of described main charging contactor closes, and normally closed switch K2 opens, and main charging circuit is communicated with, and quick discharging circuit disconnects, and main charging starts;
After main charging terminates, main charging contactor resets, and now in quick discharging circuit, normally closed switch K1, normally closed switch K2 are closed, form loop with electric capacity C, and electric capacity C becomes power supply and starts electric discharge.
As a kind of preferred version of controlled charging circuit used for electric vehicle described in the utility model, wherein also include battery management system (BMS).
As a kind of preferred version of controlled charging circuit used for electric vehicle described in the utility model, the coil in wherein said pre-charge contactor and described main charging contactor is all connected to described battery management system (BMS).
Compared with prior art, the utility model has following beneficial effect:
One, structure is simple, adopts parts few, easy for installation, is convenient to large-scale promotion.
Two, fail safe is high, can prevent contingency from occurring.
Three, can repid discharge, just start to start electric discharge to electric capacity C in moment that is charged, that disconnect main charging circuit.
Accompanying drawing explanation
Fig. 1 is the circuit theory diagrams of the utility model controlled charging circuit used for electric vehicle.
Embodiment
For setting forth the technological means that the utility model adopts and the technique effect reached further, describe in detail below in conjunction with accompanying drawing and preferred embodiment.
Referring to Fig. 1, controlled charging circuit used for electric vehicle described in the utility model, includes the pre-charge circuit be connected with high voltage source, the main charging circuit in parallel with described pre-charge circuit, the rectification circuit, the electric capacity C in parallel with described rectification circuit, quick discharging circuit, BMS system, pre-charge contactor and the main charging contactor that are connected in series with described pre-charge circuit and main charging circuit.Wherein include a resistance R1 in pre-charge circuit, in quick discharging circuit, include a resistance R2.Pre-charge contactor includes normally closed switch K1, normal open switch K3 and coil S1, and main charging contactor includes normally closed switch K2, normal open switch K4 and coil S2.In described pre-charge contactor, normal open switch K3 is serially connected with described pre-charge circuit, and in described main charging contactor, normal open switch K4 is serially connected with described main charging circuit.Normally closed switch K1 and K2 connects with resistance R2, and forms loop with electric capacity C.Coil S1 and S2 accesses BMS system, monitors in real time battery, carries out the timely adjustment of precharge and main charging.
During electric vehicle pre-charging, the normal open switch K3 of described pre-charge contactor closes, and normally closed switch K1 opens, and pre-charge circuit is communicated with, and quick discharging circuit disconnects, and starts to charge to electric capacity C;
After precharge terminates, pre-charge contactor resets, and electric automobile starts main charging circuit, and the normal open switch K4 of described main charging contactor closes, and normally closed switch K2 opens, and main charging circuit is communicated with, and quick discharging circuit disconnects, and main charging starts;
After main charging terminates, main charging contactor resets, and now in quick discharging circuit quick discharging circuit, K1, K2 are closed, form loop with electric capacity C, and electric capacity C becomes power supply and starts electric discharge.
The enough detailed description with certain particularity is carried out to the utility model above.Belonging to those of ordinary skill in field should be appreciated that, the description in embodiment is only exemplary, make under the prerequisite not departing from true spirit of the present utility model and scope change and all should belong to protection range of the present utility model.The utility model scope required for protection is undertaken limiting by described claims, instead of limited by the foregoing description in embodiment.
Claims (3)
1. a controlled charging circuit used for electric vehicle, include the pre-charge circuit be connected with high voltage source, the main charging circuit in parallel with described pre-charge circuit, the rectification circuit, the electric capacity C in parallel with described rectification circuit that are connected in series with described pre-charge circuit and main charging circuit, it is characterized in that:
Also include pre-charge contactor, main charging contactor and quick discharging circuit, described quick discharging circuit and described rectification circuit, electric capacity C are in parallel,
Described pre-charge contactor comprises normal open switch K3 and normally closed switch K1, and described normal open switch K3 is serially connected with described pre-charge circuit,
Described main charging contactor comprises normal open switch K4 and normally closed switch K2, and described normal open switch K4 is serially connected with described main charging circuit,
Described quick discharging circuit includes resistance R2, and in described resistance R2 and described pre-charge contactor, in normally closed switch K1 and described main charging contactor, normally closed switch K2 is connected in series,
During electric vehicle pre-charging, the normal open switch K3 of described pre-charge contactor closes, and normally closed switch K1 opens, and pre-charge circuit is communicated with, and quick discharging circuit disconnects, and starts to charge to electric capacity C;
After precharge terminates, pre-charge contactor resets, and electric automobile starts main charging circuit, and the normal open switch K4 of described main charging contactor closes, and normally closed switch K2 opens, and main charging circuit is communicated with, and quick discharging circuit disconnects, and main charging starts;
After main charging terminates, main charging contactor resets, and now in quick discharging circuit, normally closed switch K1, normally closed switch K2 are closed, form loop with electric capacity C, and electric capacity C becomes power supply and starts electric discharge.
2. controlled charging circuit used for electric vehicle according to claim 1, it is characterized in that: also include battery management system (BMS), described battery management system is connected with described pre-charge circuit and described main charging circuit.
3. controlled charging circuit used for electric vehicle according to claim 2, is characterized in that: the coil in described pre-charge contactor and described main charging contactor is all connected to described battery management system (BMS).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420575725.9U CN204145008U (en) | 2014-09-30 | 2014-09-30 | A kind of controlled charging circuit used for electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420575725.9U CN204145008U (en) | 2014-09-30 | 2014-09-30 | A kind of controlled charging circuit used for electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204145008U true CN204145008U (en) | 2015-02-04 |
Family
ID=52421673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420575725.9U Expired - Lifetime CN204145008U (en) | 2014-09-30 | 2014-09-30 | A kind of controlled charging circuit used for electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204145008U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106025406A (en) * | 2016-08-02 | 2016-10-12 | 威马中德汽车科技成都有限公司 | Battery switching device and method of multi-battery system |
| CN107791870A (en) * | 2017-10-23 | 2018-03-13 | 宁德时代新能源科技股份有限公司 | High-voltage detection circuit, current sampling unit, detector, battery device, carrier and power supply device |
-
2014
- 2014-09-30 CN CN201420575725.9U patent/CN204145008U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106025406A (en) * | 2016-08-02 | 2016-10-12 | 威马中德汽车科技成都有限公司 | Battery switching device and method of multi-battery system |
| CN107791870A (en) * | 2017-10-23 | 2018-03-13 | 宁德时代新能源科技股份有限公司 | High-voltage detection circuit, current sampling unit, detector, battery device, carrier and power supply device |
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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: 20180207 Address after: 224000 South Road South Road, Yancheng City economic and Technological Development Zone, Jiangsu Province, No. 43 Co-patentee after: Jiangsu Xinxin energy passenger car Co.,Ltd. Patentee after: JIANGSU AOXIN NEW ENERGY AUTOMOBILE Co.,Ltd. Co-patentee after: Jiangsu Green New Energy Vehicle Co.,Ltd. Address before: 224007 South Road South Road, Yancheng City Development Zone, Jiangsu Province, No. 43 Patentee before: JIANGSU AOXIN NEW ENERGY AUTOMOBILE Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191113 Address after: 224000 No. 69, East Ring Road, Yancheng City economic and Technological Development Zone, Jiangsu Co-patentee after: Jiangsu Xinxin energy passenger car Co.,Ltd. Patentee after: New Energy Automobile Research Institute Co.,Ltd. Co-patentee after: JIANGSU AOXIN NEW ENERGY AUTOMOBILE Co.,Ltd. Address before: 224000 South Road South Road, Yancheng City economic and Technological Development Zone, Jiangsu Province, No. 43 Co-patentee before: Jiangsu Xinxin energy passenger car Co.,Ltd. Patentee before: JIANGSU AOXIN NEW ENERGY AUTOMOBILE Co.,Ltd. Co-patentee before: Jiangsu Green New Energy Vehicle Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20150204 |