CN201383695Y - Electric bicycle charger with functions of serial charging and separate charging - Google Patents
Electric bicycle charger with functions of serial charging and separate charging Download PDFInfo
- Publication number
- CN201383695Y CN201383695Y CN200920036902U CN200920036902U CN201383695Y CN 201383695 Y CN201383695 Y CN 201383695Y CN 200920036902 U CN200920036902 U CN 200920036902U CN 200920036902 U CN200920036902 U CN 200920036902U CN 201383695 Y CN201383695 Y CN 201383695Y
- Authority
- CN
- China
- Prior art keywords
- voltage
- charging
- constant
- charger
- current
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
An electric bicycle charger with the functions of serial charging and separate charging comprises a rectifier filter, a high voltage switch, and a basic circuit of a constant flow constant pressure charge controller, and is characterized in that the charger further comprises N paths of identical 12 V windings wound by the T secondary of a high frequency transformer (when the voltage is 36 V, N is 3; and when the voltage is 48 V, N is 4); the N paths of 12 V windings form a 12 V main eliminatorsupply through rectification, filtration and isolating diodes, and are connected with relevant electrodes of the series storage battery through N plus 1 output lines; N current transformers form N paths of charging current sample circuits through rectification and filtration; and in the N paths of charging sample voltage signals, the strongest signal is selected through a voltage maximum selective circuit to be taken as an only control signal of the constant flow constant pressure charge controller in the basic circuit to jointly fulfill the charging task of the three phases of constant current, constant voltage and trickling. The utility model has the advantages of simple structure, stable and reasonable performance as well as lower cost, is easy to receive by consumers, and facilitates the generalization and application of the charger.
Description
Technical field
The utility model relates to a kind of charger technology, and particularly a kind of have string and fill, divide the charger for electric bicycle that fills double-purpose functional.
Background technology
The electric bike battery group is composed in series by 3 (36V) or four (48V) valve-regulated sealed lead-acid batteries mostly, all adopts the whole batteries serial connection charge pattern of two-wire system at present.There are many disadvantages in this string mode of filling: (1) requires every individual battery characteristic of batteries highly consistent, and this too strict pairing has increased the cost of enterprise; (2) batteries of characteristic unanimity, to the middle and later periods because of characteristic when discrete and inconsistent, can not treat with a certain discrimination, emphasis separately; (3) when batteries there are differences excessive " backwardness " battery, the super-charge super-discharge electrical phenomena very easily occurs, this vicious circle is shortened the life-span of whole batteries comprehensively, causes economic loss to the user.Thus, the harmony charging of series connection batteries is a worldwide technological puzzle.
If can carry out charge independence to every individual battery of series connection batteries, promptly carry out to divide and fill system, then be the optimal path that solves the harmonious charging of series connection batteries, can overcome the above-mentioned defective of serial connection charge.
Summary of the invention
The technical problem that the utility model solves is to have proposed a kind ofly both can carry out serial connection charge to whole batteries to the series connection lead-acid batteries, can carry out independent the branch to every individual battery again and fill the double-purpose functional charger.When the implementation branch fills, can be according to the present situation of every individual battery, respectively situation, treat with a certain discrimination, charging current separately, voltage can be adjusted automatically, every battery can both be full of, and charging phenomenon can not occur overcharging and owing, solve this technical barrier of the harmonious charging of series connection batteries preferably.
The technical solution adopted in the utility model is as follows: a kind of have string and fill, divide the charger for electric bicycle that fills function, the basic circuit that comprises rectifier filter, high-voltage switch gear, constant-current constant-voltage charging controller is characterized in that it also comprises mainly by the identical N of high frequency transformer T level coiling road 12V winding (N=3 during 36V; N=4 during 48V),, forms N road 12V master's rectifier power source, be connected with the related electrode of N+1 bar output line with the series connection batteries through rectification, filtering and isolating diode; Through rectification, filtering, constitute N road charging current sample circuit by N current transformer; N road charging sampled voltage signal is selected circuit through voltage max, and the powerhouse of select-out signal as unique control signal of the constant-current constant-voltage charging controller in the basic circuit, goes to finish the charging task of constant current, constant voltage, trickle three phases jointly.
As a kind of special case of the present utility model, when N=4, described high frequency transformer T's is secondary by identical four the 12V winding N of coiling
A, N
B, N
C, N
DConstitute, respectively through rectifier diode D
7, D
10, D
13, D
16, filter capacitor C
9, C
13, C
15, C
17And isolating diode D
8, D
11, D
14, D
17, head, the tail of each power supply are in series, common four road 12V master's rectifier power sources that constitute mutual series connection.
As a kind of special case of the present utility model, when N=4, use N
1, N
5Two output lines link to each other with the series connection batteries, then have string and fill function; Use N
1, N
2, N
3, N
4, N
5Five output lines are connected with the related electrode of series connection batteries, and then charger has branch and fills function.
As a kind of special case of the present utility model, when N=4, described charging current sample circuit mainly by current transformer A, B, C, D respectively through rectifier diode D
9, D
12, D
15, D
18, filter capacitor C
10, C
14, C
16, C
18And load resistance R
11, R
12, R
13, R
14Constitute.
As a kind of special case of the present utility model, when N=4, described voltage max select circuit by four road voltage signals of current sample through resistance R
15, R
17, R
19, R
21With amplifier A
1-1, A
1-2, A
1-3, A
1-4In-phase input end link to each other, the output of four amplifiers inserts resistance R
16, R
18, R
20, R
22And respectively with isolating diode D
19, D
20, D
21, D
22Positive pole link to each other, its negative pole connects together and inserts capacitor C over the ground
19And resistance R
23, its output voltage V
0One the tunnel feeds back to each amplifier's inverting input, and another road is transported to the A of the constant-current constant-voltage charging controller of basic circuit
2-1In-phase input end and A
2-2Inverting input.
With respect to prior art, the utlity model has following effect: (1) the utility model has designed to have to go here and there and has filled, divided the short cut circuit that fills double-purpose functional structure.Carry out and divide when filling, can be according to the present situation of every storage battery, automatically regulate charging voltage and electric current, every battery enters the three phases of constant current, constant voltage, trickle, have in time successively, charging current, voltage power also have nothing in common with each other, and charging ends, whole batteries can reach harmonious charging, thereby has prolonged the useful life of batteries.Once repeatedly did such test: four batteries that will connect are full of electricity earlier, and wherein two joints are discharged to final voltage, again batteries are carried out 8-10h and divide and fill, and final every batteries all is filled electricity, and do not occur overcharging and owe to fill phenomenon.(2) the utility model output reaches N road 12V power supply, but the former limit and the constant-current constant-voltage charging control system of circuit have only a cover, this simple and direct circuit structure has reduced cost, and every technical indicator all can satisfy the requirement of trade management, the utlity model has very high cost performance, have promotional value.
Description of drawings
Fig. 1 is the electric theory diagram of utility model;
Fig. 2 forms the connection diagram (48V charger) of components and parts and basic circuit for the utility model.
Embodiment
The utility model is to drive single excitation type switch power-supply cooperation four-operational amplifier LM324 three-step charger of field effect transistor as basic circuit with special chip UC3842, mainly comprise electronic circuits such as rectifier filter, high-voltage switch gear, constant-current constant-voltage charging controller, on this basis, set up to have to go here and there and filled, divide the circuit structure that fills function (Fig. 1, Fig. 2 frame of broken lines play part), high frequency transformer T's is secondary by identical four road 12V coil N of coiling
A～N
DFormation, essentially identical four tunnel master's rectification circuits of structure and four tunnel charging current sample circuits, voltage max are selected electronic circuit compositions such as circuit.(when voltage is 36V, N=3; When voltage was 48V, narrated with the charger shown in Fig. 2 (during N=4) below N=4): the high frequency transformer secondary coil was by duplicate four the 12V coil N of coiling
A～N
DConstitute,, constitute four groups of 12V charge independence power supplys through rectification, filtering and isolating diode, it is from beginning to end, be connected with the respective electrode of five output lines with the series connection batteries, then have branch and fill function; If only use N
1, N
5Two lines link to each other with batteries, then have string and fill function, are as good as with common charger.Existing charger is general to adopt a resistance as the charging current sample circuit, and the utility model 48V charger has four tunnel charging currents, and four-way power supply is in series again, can't use this simple current sample mode of resistance.The utility model adopts four identical in structure current transformers respectively through rectification, filtering and load resistance, converts four tunnel charging currents to voltage signal, has solved four groups of these technical barriers of serial connection charge power source charges current sample.Since the shared cover of the former limit of transformer and constant-current constant-voltage charging controller, and charging current has four groups, selects which road charging current signal as control signal, and this is the utility model key of success.Need preferentially charge into more electric energy based on capacity maximum, battery that power shortage is maximum, have only it has been full of, whole battery group just can be filled.Therefore set up voltage max to select circuit, be responsible for from four tunnel charging current sample circuits, picking out power shortage is at most the one tunnel unique control signal as the constant-current constant-voltage charging controller of electric current maximum.Experience constant current, constant voltage, these three charging processes of trickle, when the utility model charges in the branch mode of filling, the individual battery then maximum with power shortage, that electric current is maximum experience this charging process at last, all the other batteries then enter in advance, the branch mold filling formula of this practice of each person having an individual portion of food can make the series connection batteries obtain harmonious charging.
Now narrated with the A road, identical on other B, C, the D road annexation: the secondary winding N of T with the A road
AThe end of a thread as the ground wire of secondary circuit, by output line N
1Link to each other with the negative pole of storage battery A, the line tail is through current transformer A and rectifier diode D
7, filter capacitor C
9And isolating diode D
8Common formation A road 12V master's rectifier power source, D
8Negative pole link to each other with the negative pole of B road power supply, through output line N
2Link to each other with the positive pole of storage battery A, the negative pole of storage battery B, be responsible for the charging task of storage battery A.Coil N
ALine tail place have additional ring current transformer A, turn ratio is about 1: 50, instrument transformer and rectifier diode D
9Positive pole link to each other negative pole and filter capacitor C
10And load resistance R
11Link to each other, the common charging current sample circuit that constitutes storage battery A, with current signal linear change into voltage signal, this voltage signal and its excess-three road signal are through resistance R
15～R
21Amplifier (IC with voltage max selection circuit
2LM324) four in-phase input ends link to each other, and the output of four amplifiers is connected to load resistance R respectively
16～R
22And with isolating diode D
19～D
22Positive pole link to each other, the negative pole of four diodes connects together, and inserts capacitor C over the ground
19And resistance R
23, the output V of this circuit
0One the tunnel feeds back to four amplifier's inverting input, and one the tunnel removes the constant-current constant-voltage charging controller.Each amplifier of this circuit all belongs to voltage follower, owing to insert isolating diode at its output, makes this circuit have the voltage max selection function.Suppose that four road signal a roads are the strongest, i.e. Va＞Vb, Vc, Vd, Va is via amplifier A
1-1And D
19Deng the voltage follower that constitutes, it exports V
0≈ Va, promptly each amplifier's inverting input voltage approximates Va, and this voltage is higher than the in-phase input end voltage of its excess-three amplifier, so its excess-three amplifier is low level (being about 0V) output, diode D
20～D
22All end, four road signal Va～Vd have only the maximum Va to be chosen and send in the constant-current constant-voltage charging controller of basic circuit by this circuit, thereby make the maximum battery of power shortage preferentially obtain more electric energy.In charging process, power shortage is maximum, and the battery of charging current maximum is not unalterable, but the present situation of every battery of foundation is selected automatically.This four road 12V power supplys can carry out the charge independence branch that is mutually related again to 4 batteries and fill system, have overcome the disadvantage of the harmonious difference of serial connection charge.
What need here to state is that the above is a special case of the present utility model, and is not to be used for limiting protection range of the present utility model, and the equivalent variations of being done on the basis of above-mentioned described structure all belongs to the scope that the utility model is protected.
Claims (5)
1, a kind of have string and fill, divide the charger for electric bicycle that fills function, comprise the basic circuit of rectifier filter, high-voltage switch gear, constant-current constant-voltage charging controller, it is characterized in that: it also comprises mainly by the identical N of high frequency transformer T level coiling road 12V winding (N=3 during 36V; N=4 during 48V),, forms N road 12V master's rectifier power source, be connected with the related electrode of N+1 bar output line with the series connection batteries through rectification, filtering and isolating diode; Through rectification, filtering, constitute N road charging current sample circuit by N current transformer; N road charging sampled voltage signal is selected circuit through voltage max, and the powerhouse of select-out signal as unique control signal of the constant-current constant-voltage charging controller in the basic circuit, goes to finish the charging task of constant current, constant voltage, trickle three phases jointly.
2, according to claim 1 have string and fill, divide the charger for electric bicycle that fills function, and it is characterized in that: when N was 4, high frequency transformer T's was secondary by identical four the 12V winding N of coiling
A～N
DConstitute, respectively through rectifier diode D
7, D
10, D
13, D
16, filter capacitor C
9, C
13, C
15, C
17And isolating diode D
8, D
11, D
14, D
17, head, the tail of each power supply are in series, common four road 12V master's rectifier power sources that constitute mutual series connection.
3, according to claim 1 have string and fill, divide the charger for electric bicycle that fills function, it is characterized in that: when N is 4, use N
1, N
5Two output lines link to each other with the series connection batteries, then have string and fill function; Use N
1～N
5Five output lines are connected with the related electrode of series connection batteries, and then charger has branch and fills function.
4, according to claim 1 have string and fill, divide the charger for electric bicycle that fills function, it is characterized in that: when N is 4, described charging current sample circuit mainly by current transformer A, B, C, D respectively through rectifier diode D
9, D
12, D
15, D
18, filter capacitor C
10, C
14, C
16, C
18And load resistance R
11, R
12, R
13, R
14Constitute.
5, according to claim 1 have string and fill, divide the charger for electric bicycle that fills function, it is characterized in that: when N is 4, described voltage max selection circuit by four road voltage signals of current sample through resistance R
15, R
17, R
19, R
21With amplifier A
1-1, A
1-2, A
1-3, A
1-4In-phase input end link to each other, the output of four amplifiers inserts resistance R
16, R
18, R
20, R
22And respectively with isolating diode D
19, D
20, D
21, D
22Positive pole link to each other, its negative pole connects together and inserts capacitor C over the ground
19And resistance R
23, its output voltage V
0One the tunnel feeds back to each amplifier's inverting input, and another road is transported to the A of the constant-current constant-voltage charging controller of basic circuit
2-1In-phase input end and A
2-2Inverting input.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920036902U CN201383695Y (en) | 2009-02-27 | 2009-02-27 | Electric bicycle charger with functions of serial charging and separate charging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920036902U CN201383695Y (en) | 2009-02-27 | 2009-02-27 | Electric bicycle charger with functions of serial charging and separate charging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201383695Y true CN201383695Y (en) | 2010-01-13 |
Family
ID=41527166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920036902U Expired - Fee Related CN201383695Y (en) | 2009-02-27 | 2009-02-27 | Electric bicycle charger with functions of serial charging and separate charging |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201383695Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102738872A (en) * | 2011-04-08 | 2012-10-17 | 郑佩尧 | Separately-charging battery charger |
| CN105337352A (en) * | 2015-10-29 | 2016-02-17 | 邹斌 | New-energy-vehicle-used charging device using negative feedback voltage stabilizing technology |
| CN106160147A (en) * | 2016-08-09 | 2016-11-23 | 天津中科泰平科技发展有限公司 | Battery inductive charge circuit |
| CN106208291A (en) * | 2016-08-31 | 2016-12-07 | 天津中科泰平科技发展有限公司 | Vicarious electric automobile Rapid Circulation charging device |
-
2009
- 2009-02-27 CN CN200920036902U patent/CN201383695Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102738872A (en) * | 2011-04-08 | 2012-10-17 | 郑佩尧 | Separately-charging battery charger |
| CN105337352A (en) * | 2015-10-29 | 2016-02-17 | 邹斌 | New-energy-vehicle-used charging device using negative feedback voltage stabilizing technology |
| CN106160147A (en) * | 2016-08-09 | 2016-11-23 | 天津中科泰平科技发展有限公司 | Battery inductive charge circuit |
| CN106208291A (en) * | 2016-08-31 | 2016-12-07 | 天津中科泰平科技发展有限公司 | Vicarious electric automobile Rapid Circulation charging device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106451669A (en) | Rapid charging control method, device, multi-cell battery and mobile terminal | |
| CN201383695Y (en) | Electric bicycle charger with functions of serial charging and separate charging | |
| CN205004812U (en) | Charging pile for electric vehicle | |
| CN209375210U (en) | Earphone charging circuit and earphone charging box | |
| CN109379019A (en) | A kind of energy mix acquisition and memory system under high voltage overhead lines | |
| CN102089179A (en) | Electric energy supply unit and method for charging batteries of an electrical energy supply unit and electrical light-weight vehicle with electrical energy supply unit | |
| CN205944661U (en) | Double -H groove weld SB quick charge socket | |
| CN203071613U (en) | Rechargeable mobile device | |
| CN204103579U (en) | A kind of Intelligent charging spot with energy storage | |
| CN103904720A (en) | Intelligent equalizing charger | |
| CN107415765B (en) | A kind of batteries of electric automobile charge/discharge balancing system | |
| CN207117203U (en) | A kind of lithium-ion energy storage unit and unit group | |
| CN205029420U (en) | Solar energy commercial power complementation that voltage is adjustable stake of charging | |
| CN202042936U (en) | Voltage boosting type sliding automatic charging device for electric vehicle transformer | |
| CN209150738U (en) | High-voltage intelligent switchs internally-arranged type draw-out power supply device | |
| CN106452027A (en) | Multifunctional power supply adapter | |
| CN202206166U (en) | Multipath output handset charger with commercial power adapter interface | |
| CN214755654U (en) | Novel charging circuit | |
| CN205160169U (en) | Charging and discharging circuit and chargeable IC -card | |
| CN205847496U (en) | A kind of head circuit structure and terminal unit | |
| CN211351799U (en) | Treasured that charges that output voltage range is wide | |
| CN205141996U (en) | Supplementary direct current low voltage supply circuit suitable for switching power supply | |
| CN217427735U (en) | Battery series bidirectional charging and discharging device | |
| CN201038796Y (en) | Voltage regulating device of iron battery output | |
| CN2331088Y (en) | Accumulator float-charged voltage average distributor |
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: 20100113 Termination date: 20120227 |