CN200962536Y - A charging device of lead acid accumulator of the electric vehicle - Google Patents
A charging device of lead acid accumulator of the electric vehicle Download PDFInfo
- Publication number
- CN200962536Y CN200962536Y CN 200620086568 CN200620086568U CN200962536Y CN 200962536 Y CN200962536 Y CN 200962536Y CN 200620086568 CN200620086568 CN 200620086568 CN 200620086568 U CN200620086568 U CN 200620086568U CN 200962536 Y CN200962536 Y CN 200962536Y
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- circuit
- charging
- cell
- electric vehicle
- lead
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Abstract
The utility model discloses a lead-acid accumulator charging device of electromobile, comprising a high-frequency converter, characterized in that the high-frequency converter comprises a power circuit and a plurality of parallel connected charging circuits, a charging battery group, voltage real-time gathering circuits of each monemeric cell, restoration circuits respectively allocated on each monemeric cell which switches in each charging circuit respectively. Each charging circuit, the restoration circuit and the voltage real-time gathering circuits are connected with a main controller. The voltage real-time gathering circuit gathers voltage signal of each cell and transfers the signal to the main controller which controls turn-on time of switch in the charging circuit by judging whether charging has reached the state transition point and judges internal resistance change of the cell according to voltage change of the each cell in the process of being charged so as to decide whether to restore the cell, thereby prevents the occurrence of over-charging and over-restoration of the cells while being charged in series and extends the service life of cells.
Description
Technical field
The utility model relates to a kind of charging device, relates in particular to a kind of device for the lead-acid battery of electric vehicle charging.
Background technology
The lead-acid battery of electric vehicle charger that uses is a kind of traditional three-step charger at present, and same group of many interior batteries are cascaded and carry out the charging of constant current, constant voltage and floating charge three phases, and the negative pulse of battery is safeguarded it also is to be cascaded to carry out.This charging modes that many batteries are cascaded is higher to the performance parameter coherence request of each battery; when charging, occur because the charge characteristic difference of a certain battery causes the phenomenon that overcharges to other batteries through regular meeting; also occur certain battery is carried out negative pulse when safeguarding through regular meeting; negative pulse can cause the phenomenon of excessive maintenance to other battery; sometimes also be difficult for being found with a certain battery charging and discharging decreased performance in the Battery pack, continue the series connection meeting of use and quicken the performance degradation of other batteries on the same group.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of lead-acid battery of electric vehicle charging device, and its Battery pack that can use being cascaded carry out only charging of list, maintenance, when having avoided serial connection charge battery occur overcharging, excessive problem such as reparation.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of lead-acid battery of electric vehicle charging device, comprise that high-frequency converter, high-frequency converter secondary circuit comprise the reparation circuit that power circuit and a plurality of charging circuit, rechargeable battery set, the real-time Acquisition Circuit of each monomer battery voltage, each cell arranged side by side dispose respectively, rechargeable battery set inserts respectively in each charging circuit.
The real-time Acquisition Circuit of above-mentioned each monomer battery voltage and each monomer rechargeable battery set are connected in parallel in the corresponding charging circuit.
The reparation circuit that above-mentioned each cell disposes respectively and each cell are connected in parallel in the corresponding charging circuit, and this reparation circuit comprises current-limiting resistance and switch.
Be provided with resistance and switch in above-mentioned each charging circuit.
The output port of the real-time Acquisition Circuit of above-mentioned each monomer battery voltage links with the A/D of main controller end pin respectively.
Switch in above-mentioned reparation circuit and the charging circuit respectively with main controller in corresponding output pin link.
Three end pin of above-mentioned main controller also connect with power supply indicator, charging indicator light and reparation indicator light respectively by connecting line.
The beneficial effects of the utility model are: because the secondary circuit of high-frequency converter comprises a plurality of charging circuits arranged side by side, every joint rechargeable battery set that series connection is used is separately positioned in each charging circuit, each charging circuit is furnished with the real-time Acquisition Circuit of cell voltage and repairs circuit, the voltage signal that the real-time Acquisition Circuit of voltage is gathered each battery passes to main controller, main controller judges whether charging reaches state transition point, control the service time of switch in the charging circuit, and according to the variation of cell voltage in every battery charging process, the internal resistance of judging battery changes, determine whether battery is repaired, thereby prevented over-charging of battery in the serial connection charge, the excessively generation of problem such as reparation has prolonged useful life of battery.
Description of drawings
Accompanying drawing 1 is a structured flowchart of the present utility model;
Accompanying drawing 2 is an electrical schematic diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing 1,2 the utility model is described in further detail: a kind of lead-acid battery of electric vehicle charging device, comprise high-frequency converter 1, the high-frequency converter secondary circuit comprises power circuit 2 and three charging circuits arranged side by side 3, each cell in the rechargeable battery set 4 inserts respectively in each charging circuit 3, comprise resistance 31 and switch 32 in each charging circuit 3, each charging circuit 3 is furnished with the circuit 5 of reparation, repair circuit 5 and comprise resistance 51 and switch 52, repair circuit 5 and be connected in the battery two ends, also be connected with the real-time Acquisition Circuit 6 of voltage at the two ends of each cell, the real-time Acquisition Circuit of voltage 6 links with the A/D end pin of main controller 7, three end pin of main controller 7 also by connecting line respectively with power supply indicator 8, charging indicator light 9 and reparation indicator light 10 connect.
Operation principle of the present utility model is, with the corresponding respectively two ends that to lay a single battery in the charging circuit of inserting of the tap at three joint cell two ends in the rechargeable battery set, detect the voltage of each tap respectively by main controller 7, can judge relatively that through computing battery inserts or disconnection, thereby definite switch pulsewidth is opened frequency or shutoff.After battery inserted, switch was open-minded with certain pulse duration frequency respectively, and this moment, battery carried out constant current charge respectively; Carry out negative pulse when safeguarding when judge certain the excessive needs of the internal resistance of cell by the change in voltage that detects battery, switch carries out security maintenance with certain pulsewidth negative pulse to this battery in the main controller 7 control reparation circuit 5 corresponding with it, if can safeguard the battery negative pulse respectively during switch while conducting; When detecting certain cell voltage arrival constant voltage charge state transition point, make this battery enter the constant voltage charge state separately by main controller 7 its corresponding charging circuits of control; When detecting certain cell voltage and reach floating charge state point, turn-off its corresponding charging circuits by main controller 7 controls; When detecting all cell voltages and all reach floating charge state, main controller 7 each charging circuit of control enter floating charge state, and keep turn-offing charging circuit after two hours, finish charging.Three different indicator lights of delivery outlet control of main controller 7 show different charged states.
Claims (7)
1, a kind of lead-acid battery of electric vehicle charging device, comprise high-frequency converter, it is characterized in that the high-frequency converter secondary circuit comprises the reparation circuit that power circuit and a plurality of charging circuit, battery pack to be charged, the real-time Acquisition Circuit of each monomer battery voltage, each cell arranged side by side dispose respectively, battery pack to be charged inserts respectively in each charging circuit.
2, lead-acid battery of electric vehicle charging device according to claim 1 is characterized in that the real-time Acquisition Circuit of described each monomer battery voltage and each cell are connected in parallel in the corresponding charging circuit.
3 lead-acid battery of electric vehicle charging devices according to claim 1 and 2 is characterized in that reparation circuit and each cell that described each cell disposes respectively are connected in parallel in the corresponding charging circuit, and this reparation circuit comprises current-limiting resistance and switch.
4, lead-acid battery of electric vehicle charging device according to claim 1 and 2 is characterized in that being provided with resistance and switch in described each charging circuit.
5, lead-acid battery of electric vehicle charging device according to claim 1 and 2 is characterized in that the real-time Acquisition Circuit of described each monomer battery voltage links with the A/D of main controller end pin respectively.
6, lead-acid battery of electric vehicle charging device according to claim 1, it is characterized in that in described reparation circuit and the charging circuit switch respectively with main controller in corresponding output pin link.
7, lead-acid battery of electric vehicle charging device according to claim 5 is characterized in that three end pin of described main controller also connect with power supply indicator, charging indicator light and reparation indicator light respectively by connecting line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620086568 CN200962536Y (en) | 2006-06-29 | 2006-06-29 | A charging device of lead acid accumulator of the electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620086568 CN200962536Y (en) | 2006-06-29 | 2006-06-29 | A charging device of lead acid accumulator of the electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200962536Y true CN200962536Y (en) | 2007-10-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620086568 Expired - Fee Related CN200962536Y (en) | 2006-06-29 | 2006-06-29 | A charging device of lead acid accumulator of the electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200962536Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009111939A1 (en) * | 2008-03-12 | 2009-09-17 | Xing Jiguo | Lead acid storage battery restoration system and restoration method thereof |
| CN102185353A (en) * | 2011-05-11 | 2011-09-14 | 常州市宙纳新能源科技有限公司 | Intelligent repair charging instrument |
-
2006
- 2006-06-29 CN CN 200620086568 patent/CN200962536Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009111939A1 (en) * | 2008-03-12 | 2009-09-17 | Xing Jiguo | Lead acid storage battery restoration system and restoration method thereof |
| CN102185353A (en) * | 2011-05-11 | 2011-09-14 | 常州市宙纳新能源科技有限公司 | Intelligent repair charging instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071017 |