CN204538732U - Fully-automatic intelligent charging, reparation all-in-one - Google Patents
Fully-automatic intelligent charging, reparation all-in-one Download PDFInfo
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- CN204538732U CN204538732U CN201520116842.3U CN201520116842U CN204538732U CN 204538732 U CN204538732 U CN 204538732U CN 201520116842 U CN201520116842 U CN 201520116842U CN 204538732 U CN204538732 U CN 204538732U
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Abstract
A kind of fully-automatic intelligent charging, reparation all-in-one, comprise AC/DC change-over circuit, DC/DC change-over circuit, auxiliary power circuit, CPU management system, wherein this AC/DC change-over circuit is connected with multiple DC/DC change-over circuits in parallel, and each DC/DC circuit is connected with battery; The input of this auxiliary power circuit is also connected with AC/DC change-over circuit, and its output is connected with CPU management system, and this CPU management system is by CAN communication control AC/DC change-over circuit, each DC/DC change-over circuit respectively.By technique scheme, this charging, repair all-in-one not only output voltage range is wide, the scope of application is wide, and when multi-section serial battery is charged, effectively can suppress the unbalanced problem under battery pack charging status, improve the charge efficiency of battery, and system integrates charging and repairs, and module volume is little, controllability is strong, safe and reliable, possesses very strong practicality and expansion.
Description
Technical field
The utility model relates to electric automobile battery charger, charging pile, fills the fields such as electrical changing station, be mainly for electric automobile battery charger a kind of novel, integrate charging and the circuit design of repairing.
Background technology
Battery is the important motivity energy of electric motor car, and the performance of charger is good and bad to having a great impact the useful life of battery.Traditional charger adopts transformer Transformer Rectifier, only provides simple directly AC/DC conversion, its efficiency is low, volume is large, cost is high, poor reliability (after charging phase charging current is excessive, be easy to the danger occurring overcharging).Such as, the most high charge deboost of single lithium battery is 3.65V, can cause permanent injury, affect the life-span of battery more than 3.65V charging to battery.
At present, charger is very very ripe to the charging technique of cell.But the voltage of cell and capacity are all limited, be not suitable with the demand in market, usually will be connected into battery pack to use.Supply power voltage needed for Cherry s18 pure electric automobile motor is 336V, needs the battery pack be composed in series by 105 lithium batteries to provide.Serial battery charging structure is simple, easily realize, speed is fast, but is not quite similar due to the physical property of cell self, wants the charged state equilibrium ensureing each battery to be not easy very much.Battery pack is after repeatedly discharge and recharge uses, inconsistency between battery is exaggerated, this can cause Individual cells to overcharge or owe punching, whole battery pack was lost efficacy, have a strong impact on the service life of battery pack, even there will be the danger of blast, is the technical bottleneck that restriction battery charge efficiency improves, ensures charging security.
In view of the problems that above-mentioned charging device exists in security reliability and batteries charging harmony.The present inventor is based on being engaged in this type of research and development of products design rich experiences accumulated for many years and relevant professional knowledge, the method of utilization science, actively in addition research and innovation, final design goes out a kind of charger collecting full intelligent charge, repair one, overcome charging safety problem and the unbalanced problem of the charging voltage existing for multiple batteries serial connection charge, make it have more advance.Through continuous research and design, and through repeatedly having a fling at sample and improvement, finally design the utility model had practical value.
Summary of the invention
The purpose of this utility model is, overcome charging reliability not enough and cause due to battery self performance difference more piece storage battery serial connection charge time the unbalanced problem of voltage that occurs, propose the charging of a kind of fully-automatic intelligent, repair the design on control circuit be integrated in one.Technical problem to be solved is, how to improve quick charge fail safe and balanced each joint charge in batteries voltage, and then improves the charge efficiency of battery.
The purpose of this utility model and solve its technical problem and realize by the following technical solutions.According to a kind of fully-automatic intelligent charging that the utility model proposes, repair all-in-one, comprise AC/DC change-over circuit, DC/DC change-over circuit, auxiliary power circuit, CPU management system, wherein this AC/DC change-over circuit is connected with multiple DC/DC change-over circuits in parallel, and each DC/DC circuit is connected with battery; The input of this auxiliary power circuit is also connected with AC/DC change-over circuit, and its output is connected with CPU management system, and this CPU management system is by CAN communication control AC/DC change-over circuit, each DC/DC change-over circuit respectively.
The purpose of this utility model and solve its technical problem be adopt following technical measures realize further.
Aforesaid charging, reparation all-in-one, wherein said AC/DC change-over circuit comprises soft start and EMI filter circuit, APFC circuit, resonant network circuit for power conversion and AC/DC DC output circuit; The output of this APFC circuit is connected with auxiliary power circuit simultaneously, thus powers to CPU management system; CPU management system controls resonant network circuit for power conversion by CAN communication, thus control AC/DC change-over circuit.
Aforesaid charging, reparation all-in-one, each wherein said DC/DC change-over circuit is built-in with single-chip microcomputer, this single-chip microcomputer is connected with CPU management system by CAN communication line, thus by CAN communication, the cell voltage detected, current information is fed back to CPU management system.
Aforesaid charging, reparation all-in-one, wherein said CPU management system has PWM and PFM two kinds of mode of operations.
The charging of the utility model fully-automatic intelligent, repair all-in-one and has not only taken into account the unbalanced puzzlement of charging existed when polylith serial battery uses, and intelligent charge and reparation are integrated into one machine, substantially increase the useful life of battery.The utility model, compared with prior art, has the following advantages:
1, PWM and PFM two kinds of mode of operations regulate automatically, and output voltage range is wide.
2, intelligent charge and repair system are integrated in one, and reduce the volume of module, realize miniaturized, lightweight.
3, CPU management system, voltage, the electric current of each batteries of monitoring, take into account charging and repair function, extend the life of a cell in real time.
In sum, the utility model is by gathering the electric current and voltage information of battery pack, establish reference signal to compare by the feedback information of battery pack and cpu system, regulate the automatic conversion of PWM and PFM two kinds of mode of operations in real time, meet the voltage requirements that battery pack is different.Simultaneously, by gathering the voltage and current signal of every batteries, gathered voltage, current signal are delivered to CPU management system and interior establish reference signal to compare to amplify process, CPU management system outputs control signals to DC-DC change-over circuit in real time, regulate and control charging voltage and the charging current of every batteries, thus make the voltage of the every batteries of battery pack and charging capacity reach equilibrium state.This circuit structure design not only increases the utilance of battery capacity, extends the life of a cell, and reduces module volume, improves fail safe.The utility model has significant progress technically, has obvious good effect, becomes a new and innovative, progressive, practical new design.
Above-mentioned explanation is only the general introduction of technical solutions of the utility model, in order to technological means of the present utility model can be better understood, and can become apparent to allow above and other object of the present utility model, feature and advantage, below especially exemplified by a preferred embodiment, and coordinate accompanying drawing, be described in detail as follows.
Accompanying drawing explanation
Fig. 1 is the charging of the utility model fully-automatic intelligent, repairs the illustrative view of functional configuration of all-in-one.
Fig. 2 is the charging of the utility model fully-automatic intelligent, repairs the circuit structure diagram of a preferred embodiment of all-in-one.
[main element symbol description]
1:AC/DC change-over circuit
2:DC/DC change-over circuit
3: auxiliary power circuit
4:CPU management system
5:CAN connection
Embodiment
For further setting forth the utility model for the technological means reaching predetermined goal of the invention and take and effect, below in conjunction with accompanying drawing and preferred embodiment, to according to the fully-automatic intelligent charging that the utility model proposes, its embodiment of reparation all-in-one, structure, feature and effect thereof, be described in detail as follows.
Refer to Fig. 1, Fig. 2, Fig. 1 is the charging of the utility model fully-automatic intelligent, repairs the illustrative view of functional configuration of all-in-one, and Fig. 2 is the circuit structure diagram of the utility model one preferred embodiment.
Refer to Fig. 1, a kind of fully-automatic intelligent charging of the utility model, reparation all-in-one, comprise AC/DC change-over circuit 1, DC/DC change-over circuit 2, auxiliary power circuit 3, CPU management system 4.Wherein, this AC/DC change-over circuit 1 is connected with multiple DC/DC change-over circuits 2 of parallel connection respectively, and each DC/DC circuit 2 is connected with battery, thus realizes the power supply to battery.The input of auxiliary power circuit 1 is connected with AC/DC change-over circuit 1, its output is connected with CPU management system 4, thus power to CPU management system 4. this CPU management system 4 is by CAN communication control AC/DC change-over circuit 1, each DC/DC change-over circuit 2 respectively, aforesaid multiple DC/DC change-over circuit 2 is in parallel by CAN communication line 5, thus realizes the reparation of battery.
Refer to Fig. 2, preferably, aforesaid AC/DC change-over circuit 1 comprises soft start and EM I filter circuit 11, APFC (Active Power Factor Correction) circuit 12, resonant network circuit for power conversion 13 and AC/DC DC output circuit 14.Wherein, the output of APFC circuit 12 is connected with auxiliary power circuit 3 simultaneously, after three-phase alternating current rectifying and wave-filtering, powers to CPU management system 4.CPU management system 4 controls resonant network circuit for power conversion 13 by CAN communication, thus control AC/DC change-over circuit 1.
Preferably, each DC/DC change-over circuit 2 aforesaid is built-in with single-chip microcomputer, and this single-chip microcomputer is connected with CPU management system 4 by CAN communication line 5, thus by CAN communication, the cell voltage detected, current information is fed back to CPU management system 4.
Preferably, aforesaid CPU management system can automatically switch PWM and PFM two kinds of mode of operations.
First the effect of each circuit in Fig. 1, Fig. 2 is briefly introduced:
AC/DC change-over circuit 1: the three-phase alternating current (civil power) of input, through the step-down of soft start and EM I filter circuit 11, APFC (Active Power Factor Correction) circuit 12 and resonant network circuit for power conversion 13 medium/high frequency transformer by the supply power voltage of voltage transitions required for DC-DC change-over circuit 2, and then obtain smoothly through the rectifying and wave-filtering of AC/DC DC output circuit 14, galvanic current pressure exports DC-DC change-over circuit 2 to.
DC/DC change-over circuit 2: by the DC direct voltage of input, after high frequency transformer buck or boost, is sent to output and connects single battery group.A single-chip microcomputer is used for CAN communication that each inside modules is built-in and store charge information, to detect that the electric current and voltage information feed back of battery pack is to CPU management system 4 by CAN communication, CPU management system 4 is according to the electric current and voltage delivering charging instruction of feedback simultaneously.The quantity of this DC/DC change-over circuit 2 infinitely can increase according to the battery number of battery pack, and the utility model does not limit this.
Auxiliary power circuit 3: the high-voltage variable after AC/DC change-over circuit 1 rectification is changed into stable, the lower direct voltage needed for each integrated chip IC, power to the core CPU management system 4 of whole charger.
CPU management system 4: be this charging, the core of repairing all-in-one.Charging stage, the charging voltage and current information of battery pack and cell is set in CPU management system 4, AC/DC change-over circuit 1, each DC/DC change-over circuit 2 is sent by CAN communication, after CPU management system 4 compares judgement according to the information of feedack and setting, regulate automatic conversion and the charging instruction of PWM and PFM two kinds of mode of operations in real time.
By above-mentioned technical scheme, a kind of fully-automatic intelligent of the utility model charges, reparation all-in-one realizes intelligent charge, the principle of reparation is as follows:
The work of whole circuit is divided into two stages: batteries charging stage and cell repairing phase.In the charging stage, according to voltage and the capacity information of battery pack, charging voltage in CPU management system 4, current information are set, are sent to AC/DC change-over circuit 1, AC/DC change-over circuit 1 by CAN communication and export corresponding charging voltage and electric current according to system information; Simultaneity factor is sent to the voltage of each batteries, current control information each DC-DC change-over circuit 2, DC-DC change-over circuit 2 and the battery voltage information detected is fed back to CPU management system 4, forms closed-loop control.In addition, CPU management system 4 can regulate the automatic conversion of PWM and PFM two kinds of mode of operations in real time, and output voltage range is wide.When systems axiol-ogy exceedes maximum deboost to the voltage of battery pack, stop AC/DC change-over circuit 1 pair of batteries charging; CPU management system 4 is according to the electric current and voltage information of the cell of DC-DC change-over circuit 2 feedback simultaneously, carries out repair process.In the stage that cell is repaired, when the voltage that battery pack wherein has a batteries voltage to arrange higher than CPU management system 4, CPU management system 4 sends shutdown command, turns off this group DC-DC change-over circuit 2 that current voltage is higher, prevents single battery from overcharging; When the voltage that cell voltage is arranged lower than CPU management system 4, CPU management system 4 continues to send charging instruction, until when the voltage of all single-unit storage batterys is charged to the voltage of CPU management system 4 setting, and charging complete.The output voltage of at this moment all single-unit storage batterys is very consistent, reaches the object of equalizing charge, effectively improves the utilance of battery, extending battery life.
The above, it is only preferred embodiment of the present utility model, not any pro forma restriction is done to the utility model, although the utility model discloses as above with preferred embodiment, but and be not used to limit the utility model, any those skilled in the art are not departing within the scope of technical solutions of the utility model, make a little change when the technology contents of above-mentioned announcement can be utilized or be modified to the Equivalent embodiments of equivalent variations, in every case be the content not departing from technical solutions of the utility model, according to any simple modification that technical spirit of the present utility model is done above embodiment, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
Claims (4)
1. a fully-automatic intelligent charges, repairs all-in-one, comprise AC/DC change-over circuit, DC/DC change-over circuit, auxiliary power circuit, CPU management system, it is characterized in that this AC/DC change-over circuit is connected with multiple DC/DC change-over circuits in parallel, each DC/DC circuit is connected with battery; The input of this auxiliary power circuit is also connected with AC/DC change-over circuit, and its output is connected with CPU management system, and this CPU management system is by CAN communication control AC/DC change-over circuit, each DC/DC change-over circuit respectively.
2. charging according to claim 1, reparation all-in-one, is characterized in that wherein said AC/DC change-over circuit comprises soft start and EMI filter circuit, APFC circuit, resonant network circuit for power conversion and AC/DC DC output circuit; The output of this APFC circuit is connected with auxiliary power circuit simultaneously, thus powers to CPU management system; CPU management system controls resonant network circuit for power conversion by CAN communication, thus control AC/DC change-over circuit.
3. charging according to claim 1, reparation all-in-one, it is characterized in that each wherein said DC/DC change-over circuit is built-in with single-chip microcomputer, this single-chip microcomputer is connected with CPU management system by CAN communication line, thus by CAN communication, the cell voltage detected, current information is fed back to CPU management system.
4. the charging according to claim 1 or 3, reparation all-in-one, is characterized in that wherein said CPU management system has PWM and PFM two kinds of mode of operations.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520116842.3U CN204538732U (en) | 2015-02-26 | 2015-02-26 | Fully-automatic intelligent charging, reparation all-in-one |
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| CN201520116842.3U CN204538732U (en) | 2015-02-26 | 2015-02-26 | Fully-automatic intelligent charging, reparation all-in-one |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105161773A (en) * | 2015-09-11 | 2015-12-16 | 大英德创精工设备有限公司 | Positive and negative pulse lead-acid cell formation device |
| CN112952970A (en) * | 2021-02-05 | 2021-06-11 | 合肥国轩高科动力能源有限公司 | Portable battery equalization repairing device based on isolated power supply |
-
2015
- 2015-02-26 CN CN201520116842.3U patent/CN204538732U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105161773A (en) * | 2015-09-11 | 2015-12-16 | 大英德创精工设备有限公司 | Positive and negative pulse lead-acid cell formation device |
| CN112952970A (en) * | 2021-02-05 | 2021-06-11 | 合肥国轩高科动力能源有限公司 | Portable battery equalization repairing device based on isolated power supply |
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