CN203813493U - Intelligent charging control device for storage battery of electric vehicle - Google Patents
Intelligent charging control device for storage battery of electric vehicle Download PDFInfo
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- CN203813493U CN203813493U CN201420236752.3U CN201420236752U CN203813493U CN 203813493 U CN203813493 U CN 203813493U CN 201420236752 U CN201420236752 U CN 201420236752U CN 203813493 U CN203813493 U CN 203813493U
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- storage battery
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- charging
- power supply
- electric discharge
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Abstract
The utility model relates to the battery charging technology, in particular to an intelligent charging control device for storage batteries of electric vehicles. The intelligent charging control device comprises an intelligent detection and control unit, which is formed by connecting a control chip with a voltage detection unit, a temperature detection unit and a control switch respectively, the control switch is connected with a storage battery through a reverse-connection preventing parallel-charging serial-discharging circuit, the storage battery is further connected with the voltage detection unit, and the voltage detection unit and the reverse-connection preventing parallel-charging serial-discharging circuit are respectively connected with an external DC charging power supply. The intelligent charging control device can realize parallel charging and serial discharging automatically, can protect the storage battery which fails to add electricity storage liquid timely for repair in time, can prevent the system from being damaged due to the reverse connection or short circuit of the external DC charging power supply; and has the advantages of simple structure, reliable use, and easy popularization and application.
Description
Technical field
The utility model relates to battery boosting technology, particularly a kind of electric vehicle accumulator Intelligent charge control device.
Background technology
At present, electric vehicle power sources is the DC power supply being composed in series by a plurality of storage batterys mostly, normal charge method is that storage battery is connected one by one and charged simultaneously, and it is total voltage determining method that electric weight is full of determination methods, and the total voltage of working as electric vehicle accumulator group reaches charging upper limit value and just stops charging.Because current technology cannot accomplish that each storage battery self internal resistance is in full accord, this internal resistance difference can be extended in discharging and recharging use procedure for a long time for storage battery, yet the electric current of each storage battery of flowing through is identical in serial connection charge situation, like this, the voltage of assigning on the large storage battery of internal resistance is just high, the voltage of assigning on the little storage battery of internal resistance is just low, causes the little storage battery undercharge of internal resistance and phenomenon that the large storage battery of internal resistance overcharges, long-term undercharge and overcharge and all can shorten the storage battery life-span.And serial connection charge also can exist another problem, certain the piece storage battery in series circuit can affect charging normal and working of other several storage batterys while breaking down.Because of electric vehicle motor will be under the state of high voltage low current could high-efficiency operation, if storage battery adopts to be connected in parallel completely and discharges and recharges, cannot provide required high voltage for electric vehicle motor again.In addition, during the charging of existing electric vehicle accumulator, there is no temperature detecting module, if the aging dehydration of storage battery and do not add in time accumulator liquid continues charging and can cause storage battery thermal runaway to cause the permanent damage of storage battery distortion.
Chinese invention patent application prospectus CN1271199A discloses a kind of electric car charger, comprise control module, storage battery, control module is connected with AC power respectively with high-frequency converter is elementary, high-frequency converter is secondary to be connected with the positive pole of two diodes respectively, the negative pole of diode is connected with the positive pole of storage battery and control module, can realize parallel charging and the serial electric discharge of storage battery, but the access of this patent power supply detects and depends on high-frequency converter, cannot use other general 12V battery charger, and for every storage battery, anti-reverse charging circuit is not set, if use other general 12V battery charger and positive and negative connecing instead, will burn circuit.In addition, this patent can not have the storage battery that adds accumulator liquid in time to carry out charge protection to aging dehydration.
Utility model content
The purpose of this utility model is to provide a kind of electric vehicle accumulator Intelligent charge control device.
The purpose of this utility model is achieved through the following channels: a kind of electric vehicle accumulator Intelligent charge control device, it comprises Intelligent Measurement and control unit, this Intelligent Measurement is to be connected respectively voltage detection unit by control chip with control unit, temperature detecting unit and control switch form, the control switch SW0 that described control switch comprises single-pole single-throw(SPST and the control switch SWn of single-pole double throw, control switch SWn is by anti-reverse and fill string electric discharge road and connect storage battery, described storage battery is also connected with voltage detection unit, voltage detection unit and anti-reverse and fill string electric discharge road and connect respectively outside DC charging power supply.
As the further optimization of this programme, described anti-reverse and fill string electric discharge road and comprise diode Dn, described diode Dn positive terminal is connected with outside DC charging power supply positive pole with the interrupteur SW 0 of control unit by being controlled by Intelligent Measurement; Described diode Dn negative pole end and storage battery are anodal to be connected, and B anti-reverse with prime and that fill the interrupteur SW n in string electric discharge road holds and is connected simultaneously; Described storage battery negative pole end is connected with interrupteur SW n common port; The A end of described interrupteur SW n is connected with outside DC charging power supply negative pole, and B end storage battery positive pole anti-reverse with rear one-level and that fill in string electric discharge road is connected; Described interrupteur SW n connects A end or B end is controlled by Intelligent Measurement and control unit.
As the further optimization of this programme, described storage battery is the storage battery group that a plurality of storage batterys are composed in series, each independent storage battery is corresponding connect one anti-reverse and fill string electric discharge road, a plurality of anti-reverse and to fill string electric discharge road in parallel with outside DC charging power supply.
As the further optimization of this programme, described control chip is single-chip microcomputer or ARM or FPGA.
The utility model electric vehicle accumulator Intelligent charge control device, compared with the prior art, its beneficial effect is:
1. indivedual storage battery undercharges that may cause for current electric vehicle accumulator serial charging or overcharge, reduce the problem in whole storage battery group life-span, the utility model proposes a kind of electric vehicle accumulator Intelligent charge control device.When outside DC charging power supply access, anti-reverse and fill string electric discharge road and make internal control circuit enter " charged state walks abreast " by Intelligent Measurement and control unit, automatically with many 12V storage battery parallel join chargings, be equivalent to each storage battery charge independence in electric vehicle accumulator group, all can be full of completely at the appointed time, and can not overcharge; When externally DC charging power supply removes, anti-reverse and fill string electric discharge road and make internal control circuit enter " serial discharge condition " by Intelligent Measurement and control unit, many 12V storage batterys are connected in series to driving motor of electric vehicle, again can serial electric discharge provide motor required high voltage, disconnect being connected of storage battery and external charging interface simultaneously.
2. the temperature detecting unit in Intelligent Measurement and control unit can detect storage battery the temperature inside the box in real time; when a certain or several storage batterys do not have to add in time accumulator liquid because of aging dehydration; in charging process; when battery Temperature is elevated to the exceptional value of setting; the information that Based Intelligent Control core in Intelligent Measurement and control unit provides according to temperature detecting unit; can disconnect charging control switch, thereby protection storage battery can not cause permanent damage because of high temperature deformation.
3. anti-reverse and fill string electric discharge road and also there is the ability of not being afraid of the reversal connection of DC charging power supply both positive and negative polarity simultaneously, even if reversal connection can not damage circuit and electric vehicle system yet, as long as now change normal connection into, charge normal.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in further detail:
Fig. 1 is the utility model circuit box structure schematic diagram;
Fig. 2 is the structural representation of the utility model charged state embodiment;
Fig. 3 is the structural representation of the utility model discharge condition embodiment;
In figure, Intelligent Measurement and control unit 1, control chip 2, temperature detecting unit 3, control switch 4, single-pole single-throw(SPST control switch SW04a, single-pole double throw control switch SWn4b, voltage detection unit 5, outside DC charging power supply 6, anti-reverse and fill string electric discharge road 7, storage battery 8.
Embodiment
The utility model electric vehicle accumulator Intelligent charge control device provides a kind of can protect storage battery and circuit, the device in raising storage battery life-span, its inner Intelligent Measurement is connected with outside DC charging power supply by control switch with control unit, anti-reverse and fill string electric discharge road and be connected with electric vehicle accumulator by control switch, control switch is controlled by Intelligent Measurement and control unit again; DC charging power supply when access externally, anti-reverse and fill string electric discharge road and make internal control circuit enter " parallel charged state " by Intelligent Measurement and control unit, automatically charge with many 12V storage battery parallel joins; When externally DC charging power supply removes, anti-reverse and fill string electric discharge road and make internal control circuit enter " serial discharge condition " by Intelligent Measurement and control unit, automatically many 12V storage batterys are connected in series to driving motor of electric vehicle, disconnect being connected of storage battery group and external charging interface simultaneously, prevent the storage battery short circuit causing because of external conductive object contact charging inlet.Thereby while overcoming existing electric vehicle accumulator serial connection charge, each storage battery monomer may undercharge or the problem that overcharges, can serial electric discharge provide motor required high voltage again.Temperature detecting module in Intelligent Measurement and control unit; can detect the temperature of storage battery in charging; when temperature exceeds set point; Intelligent Measurement and control unit disconnect charging control switch; can protect the storage battery that there is no to add in time accumulator liquid because of aging dehydration, the permanent damage that can not cause high temperature deformation to cause.
As shown in Figure 1, a kind of electric vehicle accumulator Intelligent charge control device, it comprises Intelligent Measurement and control unit 1, this Intelligent Measurement is by control chip 2, to be connected respectively voltage detection unit 5, temperature detecting unit 3 and control switch 3 to form with control unit 1, and described control chip 2 is single-chip microcomputer or ARM or FPGA.The control switch SW04a that described control switch 4 comprises single-pole single-throw(SPST and the control switch SWn4b of single-pole double throw, control switch SWn4b is by anti-reverse and fill string electric discharge road 7 and connect storage batterys 8, described storage battery 8 is also connected with voltage detection unit 5, voltage detection unit 5 and anti-reverse and fill string electric discharge road 7 and connect respectively outside DC charging power supply 6.
As shown in Figure 2 and Figure 3, described anti-reverse and fill string electric discharge road 7, comprise diode Dn, described diode Dn positive terminal is connected with outside DC charging power supply positive pole with the interrupteur SW 04a of control unit 1 by being controlled by Intelligent Measurement; Described diode Dn negative pole end and storage battery are anodal to be connected, and B anti-reverse with prime and that fill the interrupteur SW n4b in string electric discharge road holds and is connected simultaneously; Described storage battery negative pole end is connected with interrupteur SW n4b common port; The A end of described interrupteur SW n4b is connected with outside DC charging power supply negative pole, and B end storage battery positive pole anti-reverse with rear one-level and that fill in string electric discharge road 7 is connected; Described interrupteur SW n4b connects A end or B end is controlled by Intelligent Measurement and control unit 1.
The storage battery group that described storage battery 8 is composed in series for a plurality of storage batterys, each independent storage battery 8 is corresponding connect one anti-reverse and fill string electric discharge road 7, a plurality of anti-reverse and to fill string electric discharge road 7 in parallel with outside DC charging power supply 6.Voltage detection unit 5 is also connected to outside DC charging power supply 6 concurrently; But temperature detecting unit 3 on electric not with storage battery 8 and anti-reverse and fill string electric discharge road 7 and be connected, physically be present in battery jar box, on electric, be connected with control unit 1 with Intelligent Measurement, provide temperature information to cut off charging circuit by SW04a when overtemperature.
Voltage detection unit 5 detects voltage from outside 12V DC charging power supply line and judges whether to have accessed external charging power supply, and preferred scheme is for adopting voltage comparator.Outside 12V DC charging power supply line may have two states: when external charging power supply accesses, have the voltage that is greater than 12V, no-voltage when external charging power supply removes.
Anti-reverse and fill the switch method of remote signal on off state that string electric discharge road provides according to voltage detection unit, preferred scheme is for adopting high-power FET as switching device.Anti-reverse in the present embodiment also fills string electric discharge road and comprises: carry out control switch device and the anti-reverse device of the switching of " and filling " and " string is put " state, described control switch device is connected and is controlled by voltage detection unit output signal with control unit with Intelligent Measurement.
Operation principle of the present utility model is: when the access of outside DC charging power supply, if power positive cathode malunion is true, anti-reverse device Dn can stop electric current to pass through, and prevents from damaging anti-reverse and fills the circuit in string electric discharge road itself or electric motor car.If power positive cathode connects correct, voltage detection unit can detect the access of outside DC charging power supply and controls at different levels and fill string and put interrupteur SW n in control circuit and disconnect and being connected and being connected to outside DC charging power supply negative pole of next stage storage battery positive pole, as shown in Figure 2, and fill string and put control circuit and enter " and filling " state, each storage battery is all received outside DC charging power supply charging with form in parallel, after being full of, enter floating charge state until outside DC charging power supply removes, during charging, electric motor car can not be used.After outside DC charging power supply removes, voltage detection unit can't detect the access of outside DC charging power supply, control at different levels and fill string and put interrupteur SW n in control circuit and disconnect immediately and being connected and being automatically connected with next stage storage battery positive pole of outside DC charging power supply negative pole, as shown in Figure 3, and fill string and put control circuit and enter " string is put " state, each storage battery is connected to driving motor of electric vehicle with series connection form, after removing outside DC charging power supply, can use electric motor car, until there is outside DC charging power supply access, enter next charging cycle.
The above; it is only embodiment of the present utility model; but protection range of the present utility model is not limited to this; any those of ordinary skill in the art are in the disclosed technical scope of the utility model; the variation that can expect without creative work or replacement, within all should being encompassed in protection range of the present utility model.Therefore, protection range of the present utility model should be as the criterion with the protection range that claims were limited.
Claims (4)
1. an electric vehicle accumulator Intelligent charge control device, it is characterized in that: it comprises Intelligent Measurement and control unit (1), this Intelligent Measurement is to be connected respectively voltage detection unit (5) by control chip (2) with control unit (1), temperature detecting unit (3) and control switch (4) form, the control switch SW0(4a that described control switch (4) comprises single-pole single-throw(SPST) and the control switch SWn(4b of single-pole double throw), control switch SWn(4b) by anti-reverse and fill string electric discharge road (7) and connect storage battery (8), described storage battery (8) is also connected with voltage detection unit (5), voltage detection unit (5) and anti-reverse and fill string electric discharge road (7) and connect respectively outside DC charging power supply (6).
2. electric vehicle accumulator Intelligent charge control device as claimed in claim 1, is characterized in that: described anti-reverse and fill string electric discharge road (7) and comprise diode Dn; Described diode Dn positive terminal is by being controlled by the interrupteur SW 0(4a of Intelligent Measurement and control unit (1)) be connected with outside DC charging power supply (6) is anodal; Described diode Dn negative pole end and storage battery are anodal to be connected, simultaneously anti-reverse with prime and fill the interrupteur SW n(4b in string electric discharge road (7)) B hold and be connected; Described storage battery (8) negative pole end and interrupteur SW n(4b) common port is connected; Described interrupteur SW n(4b) A end is connected with outside DC charging power supply (6) negative pole, and B end storage battery positive pole anti-reverse with rear one-level and that fill in string electric discharge road (7) is connected; Described interrupteur SW n(4b) connect A end or B end by Intelligent Measurement and control unit (1) control.
3. electric vehicle accumulator Intelligent charge control device as claimed in claim 1, it is characterized in that: the storage battery group that described storage battery (8) is composed in series for a plurality of storage batterys, each independent storage battery (8) is corresponding connect one anti-reverse and fill string electric discharge road (7), a plurality of anti-reverse and to fill string electric discharge road (7) in parallel with outside DC charging power supply (6).
4. electric vehicle accumulator Intelligent charge control device as claimed in claim 1, is characterized in that: described control chip (2) is single-chip microcomputer or ARM or FPGA.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420236752.3U CN203813493U (en) | 2014-05-10 | 2014-05-10 | Intelligent charging control device for storage battery of electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420236752.3U CN203813493U (en) | 2014-05-10 | 2014-05-10 | Intelligent charging control device for storage battery of electric vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN203813493U true CN203813493U (en) | 2014-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420236752.3U Expired - Fee Related CN203813493U (en) | 2014-05-10 | 2014-05-10 | Intelligent charging control device for storage battery of electric vehicle |
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| CN (1) | CN203813493U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107086559A (en) * | 2017-06-16 | 2017-08-22 | 深圳市华思旭科技有限公司 | A kind of safe connection equipment for external power supply |
| CN107147084A (en) * | 2017-06-19 | 2017-09-08 | 陈爱军 | Protect the method and the battery charging inlet with three proofings function using this method of battery charging inlet |
| CN114274810A (en) * | 2021-12-31 | 2022-04-05 | 四川华体照明科技股份有限公司 | Electric vehicle charging monitoring system with early warning function |
| US11682914B2 (en) | 2016-11-25 | 2023-06-20 | Dyson Technology Limited | Battery system |
-
2014
- 2014-05-10 CN CN201420236752.3U patent/CN203813493U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11682914B2 (en) | 2016-11-25 | 2023-06-20 | Dyson Technology Limited | Battery system |
| CN107086559A (en) * | 2017-06-16 | 2017-08-22 | 深圳市华思旭科技有限公司 | A kind of safe connection equipment for external power supply |
| CN107147084A (en) * | 2017-06-19 | 2017-09-08 | 陈爱军 | Protect the method and the battery charging inlet with three proofings function using this method of battery charging inlet |
| CN114274810A (en) * | 2021-12-31 | 2022-04-05 | 四川华体照明科技股份有限公司 | Electric vehicle charging monitoring system with early warning function |
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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 |
Granted publication date: 20140903 Termination date: 20150510 |
|
| EXPY | Termination of patent right or utility model |