CN203984015U - A kind of many Vehicular chargers parallel connection is power battery charging circuit - Google Patents
A kind of many Vehicular chargers parallel connection is power battery charging circuit Download PDFInfo
- Publication number
- CN203984015U CN203984015U CN201420016822.4U CN201420016822U CN203984015U CN 203984015 U CN203984015 U CN 203984015U CN 201420016822 U CN201420016822 U CN 201420016822U CN 203984015 U CN203984015 U CN 203984015U
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- contactor
- many vehicular
- chargers
- high voltage
- distribution box
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Abstract
It is power battery charging circuit that the utility model relates to a kind of many Vehicular chargers in parallel, comprise battery management system, battery management system is connected with many Vehicular chargers by CAN, many Vehicular charger output lines are all inputted high voltage distribution box, many Vehicular charger electrode lines connect corresponding contact device one normally opened contact one end, the normally opened contact other end is received positive wire, positive wire output high voltage distribution box and power battery anode line connect, contactor one coil one termination low pressure connector B, the coil other end is connected with battery management system.The beneficial effects of the utility model are: it is larger that the utility model has solved the battery capacity adopting when vehicle, but long problem of charging interval while needing again to adopt Vehicular charger charging; Many charger parallel connections, by battery management system, managed, increased charging current, reduced the charging interval, charger high-voltage output line completes parallel connection in high voltage distribution box, has improved the fail safe of high-pressure system.
Description
Technical field
The utility model relates to pure electric automobile or Development of HEV Technology field, and particularly a kind of many Vehicular chargers parallel connection is power battery charging circuit.
Background technology
Some pure electric commercial vehicle is in order to increase continual mileage at present, and the electrokinetic cell Capacity Ratio of assembling is larger, and what have can reach 300AH.At this moment generally all adopt ground charging station charging, but the infrastructure of charging at present imperfection, and ground charging station price comparison is expensive, some main engine plants and customer requirement must be equipped with Vehicular charger, and the charging interval is made to requirement, the General Requirements charging interval is within 8 hours, and the power of current Vehicular charger is all smaller, larger also with regard to 6KW, the time that is full of like this battery needs of 300AH often needed about 12 hours, efficiency while considering actual charging, battery be subject to the problems such as power, the time of actual needs can be longer.
Utility model content
It is in parallel for power battery charging circuit, to overcome currently available technology above shortcomings that the purpose of this utility model is to provide a kind of many Vehicular chargers.
The purpose of this utility model is to be achieved through the following technical solutions:
A kind of many Vehicular chargers parallel connection is power battery charging circuit, comprise battery management system, many Vehicular chargers, high voltage distribution box and electrokinetic cell, described battery management system is connected with many Vehicular chargers respectively by CAN bus, described many Vehicular charger both positive and negative polarity output lines are all inputted high voltage distribution box, in described high voltage distribution box, comprise the contactor one that quantity is identical with Vehicular charger number of units, the anodal output line of described many Vehicular chargers connects respectively corresponding contactor one normally opened contact one end, the described contactor one normally opened contact other end gathers and is connected to positive wire, positive wire output high voltage distribution box is connected with power battery anode line, described many Vehicular charger negative pole output lines gather and are connected to cathode conductor, cathode conductor output high voltage distribution box is connected with power battery cathode line, described contactor one coil one end is gathered and is connected to low pressure connector B, the described contactor one coil other end is connected with battery management system respectively.
Further, also comprise fuse in described high voltage distribution box, described fuse is connected to positive wire.
Further, in described high voltage distribution box, also comprise contactor two, contactor three, contactor four and resistance R, described contactor two normally opened contact one end are connected to the positive wire between fuse and contactor one normally opened contact aggregation point, the described contactor two normally opened contact other ends connect electrion connector, described contactor three normally opened contact one end connect cathode conductor, the described contactor three normally opened contact other ends connect electrion connector, described contactor four normally opened contact series resistance R, described contactor four normally opened contacts and resistance R are all in parallel with contactor two normally opened contacts, described contactor two coil, one end of contactor three-winding and contactor four coils is gathered and is connected to low pressure connector B, described contactor two coil, contactor three-winding is connected with battery management system respectively with the other end of contactor four coils.
Further, the positive and negative polar curve of described many Vehicular chargers is all by input connector input high voltage distribution box.
Further, described positive wire is all connected with electrokinetic cell by DC bus connector with cathode conductor.
Further, the other end of described contactor coil is all connected with battery management system by low pressure connector A.
Further, in the CAN bus being connected between described battery management system and many Vehicular chargers, be also connected with entire car controller.
Further, described many Vehicular charger inputs are all connected with charging plug
The beneficial effects of the utility model are: it is larger that the utility model has solved the battery capacity adopting when vehicle, but long problem of charging interval while needing again to adopt Vehicular charger charging; Many charger parallel connections, by battery management system, managed, increased charging current, reduced the charging interval, charger high-voltage output line completes parallel connection in high voltage distribution box, has improved the fail safe of high-pressure system.
Accompanying drawing explanation
With reference to the accompanying drawings the utility model is described in further detail below.
Fig. 1 is that many Vehicular charger parallel connections described in the utility model embodiment are the circuit block diagram of power battery charging circuit;
Fig. 2 is that many Vehicular charger parallel connections described in the utility model embodiment are the circuit theory diagrams of power battery charging circuit.
In figure:
1, battery management system; 2, Vehicular charger; 3, high voltage distribution box; 4, electrokinetic cell; 5, contactor one; 6, low pressure connector B; 7, fuse; 8, contactor two; 9, contactor three; 10, contactor four; 11, resistance R; 12, electrion connector; 13, input connector; 14, DC bus connector; 15, low pressure connector A; 16, entire car controller; 17, charging plug.
Embodiment
As shown in Figure 1-2, a kind of many Vehicular chargers parallel connection described in the utility model embodiment is power battery charging circuit, comprise battery management system 1, many Vehicular chargers 2, high voltage distribution box 3 and electrokinetic cell 4, described battery management system 1 is connected with many Vehicular chargers 2 respectively by CAN bus, described many Vehicular chargers 2 both positive and negative polarity output lines are all inputted high voltage distribution box 3, in described high voltage distribution box 3, comprise the contactor 1 that quantity is identical with Vehicular charger 2 number of units, the anodal output line of described many Vehicular chargers 2 connects respectively corresponding contactor one 5 normally opened contact one end, the described contactor one 5 normally opened contact other ends gather and are connected to positive wire, positive wire output high voltage distribution box 3 is connected with electrokinetic cell 4 electrode lines, described many Vehicular chargers 2 negative pole output lines gather and are connected to cathode conductor, cathode conductor output high voltage distribution box 3 is connected with electrokinetic cell 4 negative line, described contactor one 5 coil one end are gathered and are connected to low pressure connector B6, the described contactor one 5 coil other ends are connected with battery management system 1 respectively, in described high voltage distribution box 3, also comprise fuse 7, described fuse 7 is connected to positive wire, in described high voltage distribution box 3, also comprise contactor 28, contactor 39, contactor 4 10 and resistance R 11, described contactor 28 normally opened contact one end are connected to the positive wire between fuse 7 and contactor one 5 normally opened contact aggregation point, the described contactor 28 normally opened contact other ends connect electrion connector 12, described contactor 39 normally opened contact one end connect cathode conductor, the described contactor 39 normally opened contact other ends connect electrion connector 12, described contactor 4 10 normally opened contact series resistance R11, described contactor 4 10 normally opened contacts and resistance R 11 are all in parallel with contactor 28 normally opened contacts, described contactor 28 coils, one end of contactor 39 coils and contactor 4 10 coils is gathered and is connected to low pressure connector B6, described contactor 28 coils, the other end of contactor 39 coils and contactor 4 10 coils is connected with battery management system 1 respectively, the positive and negative polar curve of described many Vehicular chargers 2 is all by input connector 13 input high voltage distribution boxes 3, described positive wire is all connected with electrokinetic cell 4 by DC bus connector 14 with cathode conductor, the other end of described contactor coil is all connected with battery management system 1 by low pressure connector A15, in the CAN bus being connected between described battery management system 1 and many Vehicular chargers 2, be also connected with entire car controller 16, described many Vehicular chargers 2 inputs are all connected with charging plug 17.
During concrete use, first need to determine according to the ideal charging time of the capacity of electrokinetic cell and demand power (these several chargers can be same power can be also different capacity) and the gross power of separate unit charger, select the model of corresponding charger; High voltage distribution box is provided with charger 1 input connector, charger 2 input connectors, charger 3 input connectors, electrokinetic cell DC bus connector, electrion connector, low pressure connector A, low pressure connector B, contactor K1, contactor K2, contactor K3, contactor K4, contactor K5, contactor K6, insurance Fuse, resistance R, the High voltage output cable of 3 chargers completes parallel connection in high voltage distribution box, by electrokinetic cell DC bus connector, is connected to electrokinetic cell; Low pressure connector A is access to battery management system by the control end wire harness of the contactor in high voltage distribution box; Low pressure connector B is access to power supply by the control end wire harness of the contactor in high voltage distribution box; The break-make of contactor K1 management Vehicular charger 1 anodal output high-voltage line; The break-make of contactor K2 management Vehicular charger 2 anodal output high-voltage lines; The break-make of contactor K3 management Vehicular charger 3 anodal output high-voltage lines; The break-make of contactor K4 dynamics of management battery cathode output high-voltage line; The break-make of contactor K5 dynamics of management anode output high-voltage line; The break-make of contactor K6 management precharge high-tension circuit; Contactor K1, contactor K2, contactor K3, contactor K4, contactor K5, contactor K6 are managed by battery management system.
Arrange that each charger is on vehicle, the working strategies of establishment charger.Here the main or national proposed standard of foundation is basis.Battery management system is according to information such as the SOC of current battery, high monomer voltage, battery temperatures, by CAN network, to Vehicular charger 1, Vehicular charger 2, Vehicular charger 3, send instructions, open arbitrary or whole Vehicular charger and comprise the power output of distributing each Vehicular charger, closed corresponding contactor of while, in charging process, state and the power output of each charger of battery management system real-time management are closed each charger and are disconnected corresponding contactor when charging completes.When just starting to charge, all chargers can be operated at full capacity, and can make certain charger quit work when the charging current of needs reduces, and when last battery is full of, all chargers all quit work.
In charging process, each Vehicular charger is offered operating state and output current during by CAN network implementation battery management system, when finding battery management system, find that when abnormal, at once send instructions and closing this charger and disconnect corresponding contactor appears in a certain Vehicular charger; In charging process, when charging current is excessive, insurance Fuse ablation, battery management system is closed each Vehicular charger and is disconnected corresponding contactor; The form that charging plug and charging socket all adopt GB to recommend, the concrete mode connecting can specifically be implemented according to vehicle.
This embodiment has used Vehicular charger, battery management system, entire car controller, high voltage distribution box and the middle cable of 3 3KW to form; The Vehicular charger of three 3KW is in parallel, and Vehicular charger 1,2,3 and battery management system, entire car controller are by car load CAN network communication, output current and the operating state of being distributed 3 chargers by battery management system; Between 3 chargers, without master slave relation, improved the independence of every charger, and the number of units in parallel that can increase and decrease at any time charger meets different vehicle requirement; Vehicular charger 1,2,3 can determine whether work according to the requirement of battery management system, be operated under which power, so just can realize the optimization of charger operating efficiency, avoids energy waste and inefficient work; The high-voltage output line of Vehicular charger completes parallel connection in high voltage distribution box, by high voltage distribution box, exports to electrokinetic cell, has improved the fail safe of high-pressure system.
The utility model proposes a kind of many Vehicular chargers in parallel is the security solution of power battery charging, many low power chargers are together in parallel, between Vehicular charger without master slave relation, every charger is all connected on car load CAN network, by battery management system, manage many Vehicular chargers, increased charging current, reduced the charging interval, the high-voltage output line of every charger completes parallel connection in high voltage distribution box, by high voltage distribution box, export to electrokinetic cell, improved the fail safe of high-pressure system.
The utility model is not limited to above-mentioned preferred forms; anyone can draw other various forms of products under enlightenment of the present utility model; no matter but do any variation in its shape or structure; every have identical with a application or akin technical scheme, within all dropping on protection range of the present utility model.
Claims (8)
1. a many Vehicular chargers parallel connection is power battery charging circuit, comprise battery management system (1), many Vehicular chargers (2), high voltage distribution box (3) and electrokinetic cell (4), it is characterized in that: described battery management system (1) is connected with many Vehicular chargers (2) respectively by CAN bus, described many Vehicular chargers (2) both positive and negative polarity output line is all inputted high voltage distribution box (3), in described high voltage distribution box (3), comprise the contactor one (5) that quantity is identical with Vehicular charger (2) number of units, the anodal output line of described many Vehicular chargers (2) connects respectively corresponding contactor one (5) normally opened contact one end, described contactor one (5) the normally opened contact other end gathers and is connected to positive wire, positive wire output high voltage distribution box (3) is connected with electrokinetic cell (4) electrode line, described many Vehicular chargers (2) negative pole output line gathers and is connected to cathode conductor, cathode conductor output high voltage distribution box (3) is connected with electrokinetic cell (4) negative line, described contactor one (5) coil one end gather be connected to low pressure connector B(6), described contactor one (5) the coil other end is connected with battery management system (1) respectively.
2. many Vehicular chargers parallel connection according to claim 1 is power battery charging circuit, it is characterized in that: in described high voltage distribution box (3), also comprise fuse (7), described fuse (7) is connected to positive wire.
3. many Vehicular chargers parallel connection according to claim 2 is power battery charging circuit, it is characterized in that: in described high voltage distribution box (3), also comprise contactor two (8), contactor three (9), contactor four (10) and resistance R (11), described contactor two (8) normally opened contact one end are connected to the positive wire between fuse (7) and contactor one (5) normally opened contact aggregation point, described contactor two (8) the normally opened contact other ends connect electrion connector (12), described contactor three (9) normally opened contact one end connect cathode conductor, described contactor three (9) the normally opened contact other ends connect electrion connector (12), described contactor four (10) normally opened contact series resistance R(11), described contactor four (10) normally opened contacts and resistance R (11) are all in parallel with contactor two (8) normally opened contacts, described contactor two (8) coils, one end of contactor three (9) coils and contactor four (10) coils gather be connected to low pressure connector B(6), described contactor two (8) coils, the other end of contactor three (9) coils and contactor four (10) coils is connected with battery management system (1) respectively.
4. many Vehicular chargers parallel connection according to claim 3 is power battery charging circuit, it is characterized in that: the positive and negative polar curve of described many Vehicular chargers (2) is all by input connector (13) input high voltage distribution box (3).
5. many Vehicular chargers parallel connection according to claim 4 is power battery charging circuit, it is characterized in that: described positive wire is all connected with electrokinetic cell (4) by DC bus connector (14) with cathode conductor.
6. many Vehicular chargers parallel connection according to claim 5 is power battery charging circuit, it is characterized in that: the other end of described contactor coil is all by low pressure connector A(15) be connected with battery management system (1).
7. according to many Vehicular charger parallel connections described in claim 1 to 6 any one, be power battery charging circuit, it is characterized in that: in the CAN bus being connected between described battery management system (1) and many Vehicular chargers (2), be also connected with entire car controller (16).
8. according to many Vehicular charger parallel connections described in claim 1 to 6 any one, be power battery charging circuit, it is characterized in that: described many Vehicular chargers (2) input is all connected with charging plug (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420016822.4U CN203984015U (en) | 2014-01-11 | 2014-01-11 | A kind of many Vehicular chargers parallel connection is power battery charging circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420016822.4U CN203984015U (en) | 2014-01-11 | 2014-01-11 | A kind of many Vehicular chargers parallel connection is power battery charging circuit |
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| Publication Number | Publication Date |
|---|---|
| CN203984015U true CN203984015U (en) | 2014-12-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420016822.4U Expired - Fee Related CN203984015U (en) | 2014-01-11 | 2014-01-11 | A kind of many Vehicular chargers parallel connection is power battery charging circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203984015U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112636301A (en) * | 2020-11-21 | 2021-04-09 | 中联重科股份有限公司 | Upper-mounted plug-in electric operating system and engineering machinery |
| CN113364104A (en) * | 2021-07-16 | 2021-09-07 | 江苏兆能电子有限公司 | Vehicle-mounted OBC parallel charging system and charging control method thereof |
-
2014
- 2014-01-11 CN CN201420016822.4U patent/CN203984015U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112636301A (en) * | 2020-11-21 | 2021-04-09 | 中联重科股份有限公司 | Upper-mounted plug-in electric operating system and engineering machinery |
| CN112636301B (en) * | 2020-11-21 | 2023-02-24 | 中联重科股份有限公司 | Upper-mounted plug-in electric operating system and engineering machinery |
| CN113364104A (en) * | 2021-07-16 | 2021-09-07 | 江苏兆能电子有限公司 | Vehicle-mounted OBC parallel charging system and charging control method thereof |
| CN113364104B (en) * | 2021-07-16 | 2022-02-18 | 江苏兆能电子有限公司 | Vehicle-mounted OBC parallel charging system and charging control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141203 Termination date: 20210111 |