CN201556950U - Device for balancing charging and detecting repair of battery - Google Patents
Device for balancing charging and detecting repair of battery Download PDFInfo
- Publication number
- CN201556950U CN201556950U CN2009201647884U CN200920164788U CN201556950U CN 201556950 U CN201556950 U CN 201556950U CN 2009201647884 U CN2009201647884 U CN 2009201647884U CN 200920164788 U CN200920164788 U CN 200920164788U CN 201556950 U CN201556950 U CN 201556950U
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- battery
- circuit
- electronic switch
- charging
- prosthetic device
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Abstract
The utility model discloses a device for balancing charging and detecting repair of a battery, which comprises a power circuit, an electronic switch circuit, a detection control circuit and a battery unit to be charged/detected; two ends of each battery in the battery unit are respectively connected to at least one electronic switch in the electronic switch circuit; each electronic switch is an NMOS logic circuit which works in opening/closing state, and the logic control end of the NMOS logic circuit is connected to a grid electrode of a corresponding N-type field-effect tube; and the logic control end of each electronic switch connected to the positive electrode of the battery is also provided with a branch circuit connected to a negative power supply by a resistor. The device for balancing charging and detecting repair of the battery can realize automatic adaption of charging, carry out charging balance on any combination of batteries in a battery pack, lead the circuit to be simpler and more reliable by adopting a full N-type field-effect tube, and solve the problems of the safety, precision and virtual earth of measurement and control by adopting linear isolation measurement and multilevel safety isolation. The device can be used as an online tester for the load of a storage battery.
Description
Technical field
The utility model relates to a kind of battery charger, more specifically say so a kind of battery equilibrium charging and detection prosthetic device.
Background technology
Advantages such as valve-control sealed lead acid battery (VRLA) is inexpensive with it, capacity is big, efficient is high, good reliability, the present electrical source of power that still is widely used as electric motor car.In the practical application, often 2 above batteries being together in series, the collaborative power that provides of battery pack is provided.When battery capacity is not enough, by charging device it is charged again, to realize use repeatedly.
For the battery pack of this collaborative work that is together in series, present common battery charger, employing be the tandem type charging circuit, i.e. the positive pole of charger dc output end is received the positive pole of first battery in the series battery; And the negative pole of a series battery end battery links to each other with the negative pole of charger dc output end.Since battery pack dispatch from the factory and use in, can produce property differences such as the internal resistance of each battery and voltage unavoidably, so, though this tandem type charging circuit is simple in structure, but easily the more weak battery of performance in the battery pack is produced when using for a long time and overcharges (show as overheated, swell, distortion etc.), thereby influence useful life of battery.
In addition, the existing storage battery equalization charging circuit, employing be that P type field effect transistor is mixed the electronic switching circuit of forming batteries is carried out equalizing charge control with N type field effect transistor.N type field effect transistor (NMOS) is because more stable than P type field effect transistor, so be usually used in forming in the switching power circuit stable and ripe design, but find: use the electronic switch of the field effect transistor (NMOS) of full N type, often can only be designed in the following batteries charging circuit of 36V as equalization charging circuit through experiment test; After surpassing more than the 36V, when selecting a highest battery of voltage to earth to charge, battery pack self layer adds the high voltage that and is applied to the back loop that forms in the charging circuit, the full N type field effect transistor (NMOS) that usually causes plaing in the circuit switch switching effect oneself also can conducting when there be not control signal (under current state even burn out), makes circuit stability very poor.This phenomenon has more on the NMOS pipe that links with them of the highest battery of present voltage to earth and second battery of connecting with it.The voltage that is recharged the pond stack is high more, and the reverse voltage in the charge circuit is just strong more.Although also occurred adopting the scheme of this loop voltage of special key element separation at present,, adopted the product of this technical scheme also can't popularize in market because these particular components prices are very high.
The utility model content
The purpose of this utility model promptly is to provide a kind of and can solves the battery equilibrium charging of above-mentioned deficiency and detect prosthetic device.This battery equilibrium charging and detection prosthetic device not only are applicable to the batteries of voltage less than 36V, also can carry out the equilibrium charging of combination in any to in-line big voltage battery group (36V/48V/60V etc.).
For achieving the above object, the utility model battery equilibrium charging and detection prosthetic device include continuous successively power circuit, electronic switching circuit, wait to fill/battery unit to be checked, and detect control circuit; Described battery unit includes one or more batteries, and described a plurality of batteries are series connection or part series connection;
Described power circuit comprises providing multichannel controllable charge power supply, and assists and use positive and negative duplicate supply;
Each battery two ends in the described battery unit respectively are connected at least one electronic switch of described electronic switching circuit and the input of described detection control circuit; And the other end of described each electronic switch is decided on the pairing battery polar of this electronic switch, is connected to the charging output or the earth terminal of described power circuit;
Each electronic switch in the described electronic switching circuit is the NMOS logical circuit that works on off state;
The logic control end of described each electronic switch, an end links to each other with the corresponding output of described detection control circuit; The other end is connected to the grid of corresponding N type field effect transistor;
On the logic control end of described each electronic switch that is connected to each anode, also be provided with the branch road that is connected to negative supply by resistance.The parameter of resistance and negative supply in the described branch road is decided according to the positive voltage of circuit power and the charging voltage of actual needs, and negative supply voltage is not less than the voltage that inserts whole group of series-connected cell to be filled.
Electronic switch in the such scheme is a kind of buffer circuit between actual a kind of power supply and the pond to be charged.Further improvement as to above-mentioned battery equilibrium charging and detection prosthetic device also can be provided with the multilayer isolated location between above-mentioned each element circuit; Described each isolated location includes the electronic switch that is arranged on each element circuit input and output.
Described each isolated location include power supply control and isolate, and/or voltage measurement is isolated, and/or control signal is isolated, and/or the driving of electronic switch is isolated, and/or, linear isolation measurement.
As further optimization to above-mentioned battery equilibrium charging and detection prosthetic device, described charge power supply selectively provides at least 2 group charging currents, comprise equalizing charge electric current and fast charging current, the big electric current charge independence of row when being used for selecting to single battery, and/or improve charging rate.
The utility model battery equilibrium charging of detailed description and detect each concrete element circuit in the prosthetic device not adopts the existing routine techniques in this area to get final product hereinbefore.
As from the foregoing, the utility model battery equilibrium charging and detection prosthetic device have following advantage:
1, can adopt full N type field effect transistor, make circuit simple more and reliable.
2, adopt positive and negative accessory power supply (+V ,-V) servo circuit: positive voltage can be strengthened the driving force of N type effect pipe, guarantees field effect transistor conducting fully; But the reverse voltage that the stack of negative voltage balancing battery forms is absorbed loop voltage, has guaranteed the circuit network balance, makes charge and discharge process more reliable and more stable.
The utility model charging circuit exactly because adopted positive and negative accessory power supply, could realize adopting full N type field effect transistor to make electronic switch, and one of them battery of any selection of realization group series-connected cell carries out independence, safe charging.If there is not positive-negative power, the full N type field effect transistor in the charging circuit can be easy to be burnt out.
The multi-level safety isolated locations such as driving isolation of 3, power supply control isolation, voltage measurement isolation, control signal isolation, electronic switch, the system that guaranteed has reliable stand-alone capability in control procedure.
4, linear optical coupling isolation measurement can guarantee that system obtains more accurate (precision 0.1～0.01V) reliable continuous data at observation process.
5, safety is isolated and the linear optical coupling isolation measurement, has also solved the virtual earth problem of measuring and controlling.
6, can realize charging automatic the adaptation: can be according to charging voltage, charging current and other parameter of each independent battery in the real-time detected battery pack, at any time adjust the optimal charge parameter, guarantee that each battery can not overcharge, owe to fill, and guarantees the equilibrium charging of each battery in the battery pack.
For example, can begin charging from the minimum battery of voltage by detecting the break-make of control circuit control respective electronic switch, remaining power then carries out maintenance in the floating charge mode, when each cell voltage is the same by the time, charge simultaneously with same electric current each battery again to series connection.
Again for example, can charge to single battery or a plurality of series battery arbitrarily, in conjunction with correspondent control circuits, according to the concrete charge characteristic that inserts each battery different charge modes is set, as: two, three stage charging modes, positive negative pulse stuffing mode, the control of full voltage slope; The small and weak mode of preferentially filling, supervisors such as independent charging modes separately, thus can be to storage battery, lithium battery, ni-mh, dissimilar rechargeable battery such as NI-G is carried out charging.
7, can carry out the equilibrium charging of combination in any to in-line big voltage battery group (36V/48V/60V etc.).As, do not changing under original storage battery cascaded structure, can realize single battery is charged.
8, adopt the duplicate supply power supply, can select single battery is carried out big electric current charge independence, and/or improve charging rate.Two groups of power supplys are worked simultaneously, can realize the effect of quick charge and big current balance charging simultaneously.
Obviously, the utility model battery equilibrium charging and detection prosthetic device not only can be used for the daily charging of battery, also can be used for the detection reparation of battery, even, also can be used as accumulator load on-line testing device.For example, in the electric motor car driving process, detect the performance quality of each battery in the battery pack etc.
Description of drawings
Fig. 1 is the utility model battery equilibrium charging and the basic principle block diagram that detects prosthetic device.
Fig. 2 is the utility model battery equilibrium charging and the circuit theory diagrams that detect an embodiment of prosthetic device.
Fig. 3 is the circuit diagram of an embodiment of the electronic switch of the utility model battery equilibrium charging and the connection battery cathode that detects prosthetic device.
Fig. 4 is the circuit diagram of an embodiment of the electronic switch of the utility model battery equilibrium charging and the connection anode that detects prosthetic device.
Fig. 5 is the utility model battery equilibrium charging and another enforcement theory diagram that detects prosthetic device.
Fig. 6 is the utility model battery equilibrium charging and the another enforcement theory diagram that detects prosthetic device.
Embodiment
Below in conjunction with accompanying drawing the utility model battery equilibrium charging and detection prosthetic device are further described.
Fig. 1 is the utility model battery equilibrium charging and the theory diagram that detects prosthetic device.As figure, the utility model includes power circuit, and electronic switching circuit detects control circuit, and waits to fill/battery unit to be checked.Power circuit, except the auxilliary power supply of using is provided to this device other parts circuit, also by electronic switching circuit to wait to fill/battery unit to be checked provides multichannel controllable charge power supply; The break-make of each electronic switch in the electronic switching circuit, by detect control circuit according to from wait to fill/testing result that battery unit to be checked obtains judges control.
Fig. 2 is the utility model battery equilibrium charging and the circuit theory diagrams that detect prosthetic device.As figure, power circuit provides multichannel charge power supply V
Fill, and the positive and negative duplicate supply+V/-V of auxilliary usefulness that is used to other element circuit power supply; Wait to fill/battery unit to be checked includes a plurality of series-connected cells.The two ends of each battery all have line to be connected to the input that detects control circuit; The two ends of each battery, (as figure, the negative pole of battery B1 meets K0, and positive pole meets K1 also respectively to be connected with 2 electronic switches; The negative pole of battery B2 meets K2, and positive pole meets K3); The other end of each electronic switch, be connected to the charging output of power circuit or earth terminal (negative side of each battery to inductive switch ground connection, as K0 and K2; The side of the positive electrode of each battery to inductive switch, as K1 and K3, be connected to charge power supply V
Fill); The logic control end of each electronic switch links to each other with the corresponding output that detects control circuit; Be connected to the logic control end of each electronic switch (as K1 and K3) of each anode, also have the branch road that is connected to negative supply-V by resistance R.Negative supply voltage-V is not less than the voltage that inserts whole group of series-connected cell to be filled.
Each electronic switch in the electronic switching circuit works in the NMOS logical circuit of on off state.With N type field effect transistor is the concrete logical circuit that major component is used as electronic switch, and prior art that can reference has many.As shown in Figure 3 be the circuit diagram of an embodiment that connects the electronic switch (as K0 and K2) of battery cathode.As figure, the grid of N type field effect transistor by the signal amplification circuit in its left side, is received the corresponding output that detects control circuit; And the two poles of the earth are leaked in its source, connect the negative pole of battery (corresponding to B1 and B2) and the earth terminal of power circuit respectively.
And Fig. 4 is the circuit diagram of an embodiment that connects the electronic switch (as K1 and K3) of anode.As figure, the grid of N type field effect transistor by the signal transfer circuit in its left side, is received the corresponding output that detects control circuit; And the two poles of the earth are leaked in its source, connect the charge power supply output of anode (corresponding to B1 and B2) and power circuit respectively.Especially, at the grid of N type field effect transistor, also be provided with one and be connected to the branch road of negative supply-V, shown in circular empty frame among the figure by resistance R.
The course of work of the utility model battery equilibrium charging as implied above and detection prosthetic device is: after battery inserts, detect the performance parameters such as quantity, position and real-time voltage electric current that control circuit judges that battery inserts, then by controlling the break-make of each electronic switch, each battery is equipped with the optimal charge parameter discharges and recharges, and in charge and discharge process, monitor at any time and adjust.
As the above analysis, because the both positive and negative polarity of each battery all is furnished with electronic switch, so, the utility model battery equilibrium charging and detection prosthetic device can be to single battery or a plurality of series battery or even different batteries charge arbitrarily, and, can also different charge modes be set according to the concrete charge characteristic that inserts each battery, that is: can realize charging adapts to automatically.
Fig. 5 is the utility model battery equilibrium charging and another enforcement theory diagram that detects prosthetic device.
In the present embodiment, compare with previous embodiment, be provided with the multilayer isolated location between each element circuit, control is isolated as power supply, and voltage measurement is isolated, and control signal is isolated, and the driving of electronic switch is isolated.This isolated location can adopt above-mentioned electronic switch to constitute.
Fig. 6 is the utility model battery equilibrium charging and the another enforcement theory diagram that detects prosthetic device.
In the present embodiment, adopt the duplicate supply power supply so that 2 groups of charging currents to be provided, be equalizing charge electric current and fast charging current, the big electric current charge independence of row in the time of can selecting single battery, and/or raising charging rate, two groups of power supplys are worked simultaneously, can realize the effect of quick charge and big current balance charging simultaneously.
Supplementary notes: the utility model battery equilibrium charging of detailed description and detect each concrete element circuit in the prosthetic device not hereinbefore, as power circuit, detect control circuit, adopt the existing routine techniques in this area to get final product, be not described in detail in this.What particularly point out is that the mode of realization generating positive and negative voltage circuit has a variety of, can change into negative and positive dual power with the single supply dividing potential drop, also can be integrated into the circuit of a part of univoltage conversion generating positive and negative voltage in the application-specific integrated circuit (integrated circuit).
Claims (4)
1. battery equilibrium charging and detection prosthetic device include continuous successively power circuit, electronic switching circuit, wait to fill/battery unit to be checked, and detect control circuit; Described battery unit includes one or more batteries, and described a plurality of batteries are series connection or part series connection; It is characterized in that:
Described power circuit comprises providing multichannel controllable charge power supply, and assists and use positive and negative duplicate supply;
Each battery two ends in the described battery unit respectively are connected at least one electronic switch of described electronic switching circuit and the input of described detection control circuit; And the other end of described each electronic switch is connected to the charging output or the earth terminal of described power circuit;
Each electronic switch in the described electronic switching circuit is the NMOS logical circuit that works on off state;
The logic control end of described each electronic switch, the one end links to each other with the corresponding output of described detection control circuit; The other end is connected to the grid of corresponding N type field effect transistor;
On the logic control end of described each electronic switch that is connected to each anode, also be provided with the branch road that is connected to negative supply by resistance; The negative supply voltage that connects is not less than the voltage that inserts whole group of series-connected cell to be filled.
2. battery equilibrium charging according to claim 1 and detection prosthetic device is characterized in that: between described each element circuit, also be provided with the multilayer isolated location; Described each isolated location includes the electronic switch that is arranged on each element circuit input and output.
3. battery equilibrium charging according to claim 2 and detection prosthetic device is characterized in that: described each isolated location, and include power supply control and isolate, and/or, voltage measurement is isolated, and/or control signal is isolated, and/or, the driving of electronic switch is isolated, and/or, linear isolation measurement.
4. according to described battery equilibrium charging of one of claim 1 to 3 and detection prosthetic device, it is characterized in that: described charge power supply selectively provides at least 2 group charging currents, comprises equalizing charge electric current and fast charging current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201647884U CN201556950U (en) | 2009-11-04 | 2009-11-04 | Device for balancing charging and detecting repair of battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201647884U CN201556950U (en) | 2009-11-04 | 2009-11-04 | Device for balancing charging and detecting repair of battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201556950U true CN201556950U (en) | 2010-08-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201647884U Expired - Fee Related CN201556950U (en) | 2009-11-04 | 2009-11-04 | Device for balancing charging and detecting repair of battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201556950U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101728852B (en) * | 2009-11-04 | 2012-05-02 | 秦永振 | Battery equilibrium charging and detecting and repairing device |
| CN103582823A (en) * | 2011-06-09 | 2014-02-12 | 株式会社辰巳菱机 | Load system |
| CN105978107A (en) * | 2016-07-11 | 2016-09-28 | 电子科技大学中山学院 | Multi-battery-pack automatic charging and maintenance balance diagnosis system for electric automobile |
-
2009
- 2009-11-04 CN CN2009201647884U patent/CN201556950U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101728852B (en) * | 2009-11-04 | 2012-05-02 | 秦永振 | Battery equilibrium charging and detecting and repairing device |
| CN103582823A (en) * | 2011-06-09 | 2014-02-12 | 株式会社辰巳菱机 | Load system |
| US8810200B2 (en) | 2011-06-09 | 2014-08-19 | Tatsumi Corporation | Load system |
| CN103582823B (en) * | 2011-06-09 | 2014-10-08 | 株式会社辰巳菱机 | Load system |
| CN105978107A (en) * | 2016-07-11 | 2016-09-28 | 电子科技大学中山学院 | Multi-battery-pack automatic charging and maintenance balance diagnosis system for electric automobile |
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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: 20100818 Termination date: 20121104 |