CN205231779U - A charging system and machine that charges for electric automobile - Google Patents
A charging system and machine that charges for electric automobile Download PDFInfo
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- CN205231779U CN205231779U CN201520958811.2U CN201520958811U CN205231779U CN 205231779 U CN205231779 U CN 205231779U CN 201520958811 U CN201520958811 U CN 201520958811U CN 205231779 U CN205231779 U CN 205231779U
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Abstract
The utility model discloses a charging system and machine that charges for electric automobile, charging system includes: the N module that charges is drawn together to the machine that charges, the press packed bale that charges, N charge the other parallel connection of mould splits to the electric wire netting in order getting the electricity from the electric wire netting respectively, N charges and to carry out the intercommunication through the CAN bus between the module, and the module that charges of giving first place to of the arbitrary module that charges in the individual module that charges of N, the power battery package, the power battery package is including a N cell, the battery management ware is communicated through the CAN bus with the the control unit who leads in the module that charges, and every cell's voltage information is gathered to the battery management ware to acquireing the demand of charging information, and sending it for the control unit, the module charges to the power battery package power that charges of every module that charges of the control unit control so that N charges. This charging system can wrap voltage with power battery and divide into a N voltage stack to avoid the charging boosting of in machine power device and limited is favorable to power battery package voltage lifting optimization.
Description
Technical field
The utility model relates to power battery charging technical field, particularly a kind of charging system for electric automobile and a kind of charger.
Background technology
Along with the development need of society and reaching its maturity of industry technology, electric automobile (comprising hybrid vehicle HEV and pure electric automobile EV) becomes more and more prevailing.Current electric automobile is used for the mode of family's charging as shown in Figure 1, from the direct power taking of electrical network (household socket) to the charger of electric automobile, then become high voltage direct current to car load power battery charging voltage transitions by charger, or be given to the charger of electric automobile by special charging box/stake power taking, charger converts high voltage direct current to car load power battery charging.Wherein, electrokinetic cell bag change in voltage is followed in the output of charger, the lifting of electrokinetic cell bag voltage, and the output of charger and the withstand voltage of internal power device thereof also need to follow lifting.
Although the lifting of electrokinetic cell bag voltage has plurality of advantages to car load, but can withstand voltage and limited under the pressure of the power device in charger such as power diode, metal-oxide-semiconductor or IGBT, thus the battery stages causing each depot to develop majority can, based on 650V power device electric pressure (mainly the withstand voltage of power device is generally 650V at present), make automobile research limited.
Summary of the invention
The utility model is intended to solve one of technical problem in above-mentioned technology at least to a certain extent.For this reason, an object of the present utility model is to propose a kind of charging system for electric automobile, come to charge to electrokinetic cell bag by N number of charging module, when the voltage lifting of electrokinetic cell bag, electrokinetic cell bag voltage can be divided into N number of voltage superposition, thus avoid the voltage of power device in charger raise and limited, be conducive to electrokinetic cell bag voltage lifting optimization.
Another object of the present utility model is to propose a kind of charger.
For achieving the above object, a kind of charging system for electric automobile that the utility model proposes on the one hand, comprise: charger, described charger comprises N number of charging module, described N number of charging module is parallel-connected to electrical network respectively with respectively from described electrical network power taking, is intercomed mutually between described N number of charging module by CAN, and any one the charging module in described N number of charging module is main charging module, wherein, N be greater than 1 integer, electrokinetic cell bag, N number of battery unit drawn together by described electrokinetic cell handbag, battery manager, described battery manager is communicated by CAN with the control unit in described main charging module, described battery manager gathers the information of voltage of each battery unit in described N number of battery unit, and obtain the charge requirement information of described electrokinetic cell bag, and the charge requirement information of the information of voltage of described each battery unit and described electrokinetic cell bag is sent to described control unit, the charge power that described control unit controls each charging module in described N number of charging module according to the charge requirement information of the information of voltage of described each battery unit and described electrokinetic cell bag charges to described electrokinetic cell bag to make described N number of charging module.
According to the charging system for electric automobile that the utility model proposes, charger comprises N number of charging module, N number of charging module is parallel-connected to electrical network respectively with respectively from electrical network power taking, come to charge to electrokinetic cell bag by N number of charging module like this, when the voltage lifting of electrokinetic cell bag, electrokinetic cell bag voltage can be divided into N number of voltage superposition, thus avoid the voltage of power device in charger raise and limited, not only be conducive to charger modular design and exploitation, also help electrokinetic cell bag voltage lifting optimization, also easily to upgrade on existing version, bring convenience to designer.
Wherein, described each charging module includes charging inlet, and is connected with described each battery unit one_to_one corresponding by corresponding charging inlet.
Or the output of described N number of charging module is connected in series to form a charging inlet, described charger is connected with described electrokinetic cell bag by this charging inlet.
Particularly, described each charging module includes PFC module and DC-DC modular converter.
Or described each charging module includes DC-DC modular converter, and the DC-DC modular converter in described each charging module shares a PFC module.
Further, described each charging module is also connected with described electrical network respectively by charging box/stake, with by described charging box/stake from described electrical network power taking.
Particularly, described charger also has inversion mode of operation, and described electrokinetic cell bag is discharged to described electrical network by described charger.
For achieving the above object, a kind of charger that the utility model proposes on the other hand, comprise N number of charging module, described N number of charging module is parallel-connected to electrical network respectively with respectively from described electrical network power taking, intercomed mutually by CAN between described N number of charging module, and any one the charging module in described N number of charging module is main charging module, control unit in described main charging module and battery manager carry out the information of voltage of each battery unit in the charge requirement information that communicates to receive the electrokinetic cell bag that described battery manager sends and described electrokinetic cell bag by CAN, and described electrokinetic cell bag is charged to make described N number of charging module according to the charge power of each charging module in the information of voltage of described each battery unit and the described N number of charging module of charge requirement information control of described electrokinetic cell bag, wherein, N be greater than 1 integer.
According to the charger that the utility model proposes, N number of charging module is parallel-connected to electrical network respectively with respectively from electrical network power taking, come to charge to electrokinetic cell bag by N number of charging module like this, when the voltage lifting of electrokinetic cell bag, electrokinetic cell bag voltage can be divided into N number of voltage superposition, thus avoid the voltage of power device in charger raise and limited, not only be conducive to charger modular design and exploitation, also help electrokinetic cell bag voltage lifting optimization, also easily to upgrade on existing version, bring convenience to designer.
Wherein, N number of battery unit drawn together by described electrokinetic cell handbag, and described each charging module includes charging inlet, and is connected with each battery unit one_to_one corresponding in described N number of battery unit by corresponding charging inlet.
Or the output of described N number of charging module is connected in series to form a charging inlet, be connected with described electrokinetic cell bag by this charging inlet to make described charger.
Particularly, described each charging module includes PFC module and DC-DC modular converter.
Or described each charging module includes DC-DC modular converter, and the DC-DC modular converter in described each charging module shares a PFC module.
Accompanying drawing explanation
Fig. 1 is the block diagram of existing a kind of charging system for electric automobile;
Fig. 2 is the block diagram of the charging system for electric automobile according to the utility model embodiment;
Fig. 3 is the block diagram of the charging system for electric automobile according to another embodiment of the utility model;
Fig. 4 is the structural representation of the charger according to the utility model embodiment;
Fig. 5 is the structural representation of the charger according to another embodiment of the utility model; And
Fig. 6 is the block diagram according to the utility model also charging system for electric automobile of an embodiment.
Embodiment
Be described below in detail embodiment of the present utility model, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the utility model, and can not be interpreted as restriction of the present utility model.
Below with reference to the accompanying drawings charging system for electric automobile and the charger of the proposition of the utility model embodiment are described.
Shown in composition graphs 2 to Fig. 5, the charging system for electric automobile that the utility model embodiment proposes comprises charger 10, electrokinetic cell bag 20 and battery manager 30.
Charger 10 comprise N number of charging module 11,12,13 ..., 1N, N number of charging module 11,12,13 ..., 1N is parallel-connected to electrical network respectively with respectively from electrical network power taking, N number of charging module 11,12,13 ..., intercom mutually between 1N, and N number of charging module 11,12,13 ..., any one charging module such as first charging module 11 in 1N is main charging module, wherein, N be greater than 1 integer.Electrokinetic cell bag 20 comprises N number of battery unit 21, 22, 23, 2N, the control unit 110 that battery manager 30 charges in module 11 with main charging module such as first communicates, battery manager 30 gathers the information of voltage of each battery unit in N number of battery unit, and obtain the charge requirement information of electrokinetic cell bag 20, and the charge requirement information of the information of voltage of each battery unit and electrokinetic cell bag 20 is sent to control unit 110, the charge power that control unit 110 controls each charging module in N number of charging module according to the charge requirement information of the information of voltage of each battery unit and electrokinetic cell bag charges to electrokinetic cell bag 20 to make N number of charging module.
According to an embodiment of the present utility model, each charging module includes charging inlet, and is connected with each battery unit one_to_one corresponding by corresponding charging inlet.Such as shown in Figure 2, charging module is two, i.e. the first charging module 11 and the second charging module 12, the charging inlet of the first charging module 11 is for connecting the first battery unit 21, thus the first charging module 11 charges to the first battery unit 21, the charging inlet of the second charging module 12 is for connecting the second battery unit 22, thus the second charging module 12 charges to the second battery unit 22.Wherein, each charhing unit is in series by multiple battery pack such as M battery pack, and N number of battery cells in series connects to form electrokinetic cell bag, and M is positive integer.
That is, as shown in Figure 2, the voltage of electrokinetic cell bag 20 can be grouped into U=U1+U2, the corresponding U1 of first battery unit 21, the corresponding U2 of second battery unit 22, the first battery unit 21 is charged by the first charging module 11, and the second battery unit 22 is charged by the second charging module 12.First charging module 11 and second charges between module 12 and carries out communicating to carry out data interaction, and the first charging module 11 and the second charging module 12 can use general Vehicular charger module.
Namely say, in the present embodiment, when the voltage lifting of electrokinetic cell bag, the voltage of electrokinetic cell bag can be divided into U=U1+U2+ ... + UN, the input of N number of charging module is in parallel, exports corresponding each battery unit respectively, thus when the voltage lifting of electrokinetic cell bag, in each charging module, the voltage of power device is without the need to lifting, avoid the voltage of power device raise and limited.
According to another embodiment of the present utility model, N number of charging module 11,12,13 ..., 1N output be connected in series to form a charging inlet, charger 10 is connected with electrokinetic cell bag 20 by this charging inlet.Such as shown in Figure 3, charging module is two, i.e. the first charging module 11 and the second charging module 12, the output series connection of the first charging module 11 and the second charging module 12 is to form a charging inlet, be used for connecting electrokinetic cell bag 20, thus the first charging module 11 and the second charging module 12 charge to electrokinetic cell bag jointly.Wherein, each charhing unit is in series by multiple battery pack such as M battery pack, and N number of battery cells in series connects to form electrokinetic cell bag.
Namely say, in the present embodiment, when the voltage lifting of electrokinetic cell bag, the voltage of electrokinetic cell bag can be divided into U=U1+U2+ ... + UN, the input of N number of charging module is in parallel, exports series connection, thus when the voltage lifting of electrokinetic cell bag, in each charging module, the voltage of power device is without the need to lifting, avoid the voltage of power device raise and limited.
In embodiment of the present utility model, intercomed mutually by CAN between N number of charging module, communicated by CAN between battery manager 30 with control unit 110.
According to an embodiment of the present utility model, as shown in Figure 4, each charging module includes PFC(PowerFactorCorrection, power factor correction) module and DC-DC modular converter.
According to another embodiment of the present utility model, as shown in Figure 5, each charging module includes DC-DC modular converter, and the DC-DC modular converter in each charging module shares a PFC module.
Wherein, as shown in Figure 6, each charging module is also connected with electrical network respectively by charging box/stake, to pass through charging box/stake from electrical network power taking.
Specifically, when designing charging module, from electrical network or charging box power taking hypothesis 220V, consider power network fluctuation, through PFC module output voltage 380V, DC-DC module exports considers compatible 600 ~ 650V power device, and the efficiency input and output difference of the module that in addition charges is less then better, and output voltage nominal can select 350V such as U1.Wherein, if the electrokinetic cell bag of nominal 700V, then can be divided into two, if electrokinetic cell bag voltage cannot be the multiple of U1, then can change the output voltage of another charging module, such as design voltage is U2, so electrokinetic cell bag voltage is divided into U=U1+U2, U1 and U2 can be inconsistent, by that analogy.And, when charging to electrokinetic cell bag, battery manager detects the information such as the voltage of each battery pack by each battery pack sampling module, thus collect the information of voltage of each battery unit, if battery manager receives the information that electrokinetic cell bag needs charging, then by carrying out CAN communication the charge requirement information of electrokinetic cell bag to be sent to the control unit in main charging module with the control unit in main charging module, also the information of voltage of each battery unit is sent to the control unit in main charging module simultaneously, control unit in main charging module controls each charging module according to the charge requirement information of the information of voltage of each battery unit and electrokinetic cell bag, realize the charging to electrokinetic cell bag.
Wherein, each charging module also can be designed as energy and two-way circulates, and increases invert function.Namely say, charger 10 also has inversion mode of operation, and electrokinetic cell bag 20 discharges to electrical network by charger 10.
According to the charging system for electric automobile of the utility model embodiment, charger comprises N number of charging module, N number of charging module is parallel-connected to electrical network respectively with respectively from electrical network power taking, come to charge to electrokinetic cell bag by N number of charging module like this, when the voltage lifting of electrokinetic cell bag, electrokinetic cell bag voltage can be divided into N number of voltage superposition, thus avoid the voltage of power device in charger raise and limited, not only be conducive to charger modular design and exploitation, also help electrokinetic cell bag voltage lifting optimization, also easily to upgrade on existing version, bring convenience to designer.
In addition, embodiment of the present utility model also proposed a kind of charger 10, shown in composition graphs 2 to Fig. 5, this charger 10 comprises N number of charging module, N number of charging module is parallel-connected to electrical network respectively with respectively from described electrical network power taking, intercom mutually between described N number of charging module, and any one the charging module in described N number of charging module is main charging module, control unit in described main charging module and battery manager carry out the information of voltage of each battery unit in the charge requirement information that communicates to receive the electrokinetic cell bag that described battery manager sends and described electrokinetic cell bag, and described electrokinetic cell bag is charged to make described N number of charging module according to the charge power of each charging module in the information of voltage of described each battery unit and the described N number of charging module of charge requirement information control of described electrokinetic cell bag, wherein, N be greater than 1 integer.
According to an embodiment of the present utility model, N number of battery unit drawn together by described electrokinetic cell handbag, and described each charging module includes charging inlet, and is connected with each battery unit one_to_one corresponding in described N number of battery unit by corresponding charging inlet.
According to another embodiment of the present utility model, the output of described N number of charging module is connected in series to form a charging inlet, is connected by this charging inlet to make described charger with described electrokinetic cell bag.
According to an embodiment of the present utility model, as shown in Figure 4, each charging module includes PFC module and DC-DC modular converter.
According to another embodiment of the present utility model, as shown in Figure 5, each charging module includes DC-DC modular converter, and the DC-DC modular converter in described each charging module shares a PFC module.
According to the charger of the utility model embodiment, N number of charging module is parallel-connected to electrical network respectively with respectively from electrical network power taking, come to charge to electrokinetic cell bag by N number of charging module like this, when the voltage lifting of electrokinetic cell bag, electrokinetic cell bag voltage can be divided into N number of voltage superposition, thus avoid the voltage of power device in charger raise and limited, not only be conducive to charger modular design and exploitation, also help electrokinetic cell bag voltage lifting optimization, also easily to upgrade on existing version, bring convenience to designer.
In description of the present utility model, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", " counterclockwise ", " axis ", " radial direction ", orientation or the position relationship of the instruction such as " circumference " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise at least one this feature.In description of the present utility model, the implication of " multiple " is at least two, such as two, three etc., unless otherwise expressly limited specifically.
In the utility model, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements, unless otherwise clear and definite restriction.For the ordinary skill in the art, the concrete meaning of above-mentioned term in the utility model can be understood as the case may be.
In the utility model, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary indirect contact.And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " can be fisrt feature immediately below second feature or tiltedly below, or only represent that fisrt feature level height is less than second feature.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present utility model or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this specification or example and different embodiment or example can carry out combining and combining by those skilled in the art.
Although illustrate and described embodiment of the present utility model above, be understandable that, above-described embodiment is exemplary, can not be interpreted as restriction of the present utility model, those of ordinary skill in the art can change above-described embodiment, revises, replace and modification in scope of the present utility model.
Claims (12)
1. for a charging system for electric automobile, it is characterized in that, comprising:
Charger, described charger comprises N number of charging module, described N number of charging module is parallel-connected to electrical network respectively with respectively from described electrical network power taking, intercomed mutually by CAN between described N number of charging module, and any one the charging module in described N number of charging module is main charging module, wherein, N be greater than 1 integer;
Electrokinetic cell bag, N number of battery unit drawn together by described electrokinetic cell handbag;
Battery manager, described battery manager is communicated by CAN with the control unit in described main charging module, described battery manager gathers the information of voltage of each battery unit in described N number of battery unit, and obtain the charge requirement information of described electrokinetic cell bag, and the charge requirement information of the information of voltage of described each battery unit and described electrokinetic cell bag is sent to described control unit, the charge power that described control unit controls each charging module in described N number of charging module according to the charge requirement information of the information of voltage of described each battery unit and described electrokinetic cell bag charges to described electrokinetic cell bag to make described N number of charging module.
2. the charging system for electric automobile according to claim 1, is characterized in that, described each charging module includes charging inlet, and is connected with described each battery unit one_to_one corresponding by corresponding charging inlet.
3. the charging system for electric automobile according to claim 1, is characterized in that, the output of described N number of charging module is connected in series to form a charging inlet, and described charger is connected with described electrokinetic cell bag by this charging inlet.
4. the charging system for electric automobile according to claim 1, is characterized in that, described each charging module includes PFC module and DC-DC modular converter.
5. the charging system for electric automobile according to claim 1, is characterized in that, described each charging module includes DC-DC modular converter, and the DC-DC modular converter in described each charging module shares a PFC module.
6. the charging system for electric automobile according to claim 1, is characterized in that, described each charging module is also connected with described electrical network respectively by charging box/stake, with by described charging box/stake from described electrical network power taking.
7. the charging system for electric automobile according to claim 1, is characterized in that, described charger also has inversion mode of operation, and described electrokinetic cell bag is discharged to described electrical network by described charger.
8. a charger, it is characterized in that, comprise N number of charging module, described N number of charging module is parallel-connected to electrical network respectively with respectively from described electrical network power taking, intercomed mutually by CAN between described N number of charging module, and any one the charging module in described N number of charging module is main charging module, control unit in described main charging module and battery manager carry out the information of voltage of each battery unit in the charge requirement information that communicates to receive the electrokinetic cell bag that described battery manager sends and described electrokinetic cell bag by CAN, and described electrokinetic cell bag is charged to make described N number of charging module according to the charge power of each charging module in the information of voltage of described each battery unit and the described N number of charging module of charge requirement information control of described electrokinetic cell bag, wherein, N be greater than 1 integer.
9. charger according to claim 8, it is characterized in that, N number of battery unit drawn together by described electrokinetic cell handbag, and described each charging module includes charging inlet, and is connected with each battery unit one_to_one corresponding in described N number of battery unit by corresponding charging inlet.
10. charger according to claim 8, is characterized in that, the output of described N number of charging module is connected in series to form a charging inlet, is connected by this charging inlet to make described charger with described electrokinetic cell bag.
11. chargers according to claim 8, is characterized in that, described each charging module includes PFC module and DC-DC modular converter.
12. chargers according to claim 8, is characterized in that, described each charging module includes DC-DC modular converter, and the DC-DC modular converter in described each charging module shares a PFC module.
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Cited By (3)
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CN106856341A (en) * | 2016-12-26 | 2017-06-16 | 浙江万马新能源有限公司 | A kind of charging electric vehicle control method of low equipment loss |
CN107985091A (en) * | 2017-11-14 | 2018-05-04 | 江苏大学 | A kind of the transformation charging unit and control method of the wheel hub motor regenerative braking based on BMS |
CN108312856A (en) * | 2017-01-16 | 2018-07-24 | 华为技术有限公司 | The charging pile system and method for a kind of charging pile and machine |
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2015
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Publication number | Priority date | Publication date | Assignee | Title |
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CN106856341A (en) * | 2016-12-26 | 2017-06-16 | 浙江万马新能源有限公司 | A kind of charging electric vehicle control method of low equipment loss |
CN108312856A (en) * | 2017-01-16 | 2018-07-24 | 华为技术有限公司 | The charging pile system and method for a kind of charging pile and machine |
CN108312856B (en) * | 2017-01-16 | 2021-06-01 | 华为技术有限公司 | Charging pile system and method for parallel operation of charging piles |
US11260763B2 (en) | 2017-01-16 | 2022-03-01 | Huawei Technologies Co., Ltd. | Charging pile system of parallel charging piles and method |
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