CN202111481U - Active equalization system of power lithium ion batteries - Google Patents
Active equalization system of power lithium ion batteries Download PDFInfo
- Publication number
- CN202111481U CN202111481U CN2011201198878U CN201120119887U CN202111481U CN 202111481 U CN202111481 U CN 202111481U CN 2011201198878 U CN2011201198878 U CN 2011201198878U CN 201120119887 U CN201120119887 U CN 201120119887U CN 202111481 U CN202111481 U CN 202111481U
- Authority
- CN
- China
- Prior art keywords
- battery
- module
- cell
- voltage
- balance controller
- 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
The utility model relates to an active equalization system of power lithium ion batteries, which comprises a battery module. The battery module is connected with an input end of an equalization controller through a battery pack voltage sampling module, an optional single battery in the battery module is connected with the input end of the equalization controller through a single battery voltage measuring module, one optional single battery in the battery module is connected with an electric quantity equalization module, and the electric quantity equalization module is connected with an output end of the equalization controller. When the single battery voltage and the average voltage value of each single battery in the battery module correspond to a voltage relation set by the equalization controller, the equalization controller outputs equalization control signals to the electric quantity equalization module so that active equalization of the corresponding single battery in the battery module is performed, and the single battery voltage and the average voltage value of the single battery in the battery module are matched with the voltage relation set by the equalization controller. The active equalization system of the power lithium ion batteries is convenient in operation, fine in adaptability, safe and reliable, and the service lives of the batteries are prolonged.
Description
Technical field
The utility model relates to a kind of active equalizing system, and especially a kind of active equalizing system of power lithium-ion battery belongs to the technical field of power lithium-ion battery.
Background technology
Power lithium-ion battery adopts series system to connect more; Because the aspects such as temperature of each monomer lithium ion battery each monomer lithium ion battery in manufacturing, initial capacity, voltage, internal resistance and lithium ion battery group are all incomplete same, in use, can cause overcharging and the overdischarge phenomenon of certain monomer lithium ion battery; Can cause other lithium ion batteries of Capacity Ratio of indivedual lithium ion batteries all low when serious; In discharge process, its electric weight is in discharge process, and its electric weight has at first been put.For the power lithium-ion battery after the series connection is protected, have to stop the discharge of whole battery group, to entire lithium ion battery service time and capacity causing great injury.In fact the actual capacity of emitting in one group of lithium ion battery is to determine that by that minimum piece lithium ion battery of actual capacity when promptly this capacity of lithium ion battery came to an end, other lithium ion batteries can't work on.
Also be like this in the charging process of lithium ion power.In charging process, at first put the lithium ion battery of electricity, can at first be filled again, the phenomenon that will occur overcharging like this makes the entire lithium ion battery group normally not to be filled.Therefore in the energy-storage battery course of work of mixed power electric car, the lack of uniformity between lithium ion battery is influence one of lithium ion battery work very harmful factors, and it is that ten minutes is necessary that battery pack is carried out that equilibrium control.
Summary of the invention
The purpose of the utility model is to overcome the deficiency that exists in the prior art, and a kind of active equalizing system of power lithium-ion battery is provided, and its use is easy to operate, prolongs the useful life of battery, and adaptability is good, and is safe and reliable.
According to the technical scheme that the utility model provides, the active equalizing system of said power lithium-ion battery comprises the battery module that is composed in series by some cells, and said battery module links to each other with the input of balance controller through the battery voltage sampling module; Any cell links to each other with the input of balance controller through the monomer battery voltage measurement module in the battery module, and any cell all links to each other with the electric weight balance module in the battery module, and the electric weight balance module links to each other with the output of balance controller;
The battery voltage sampling module is input to the voltage sample of battery module in the balance controller, and the monomer battery voltage measurement module is input to corresponding monomer battery voltage in the battery module in the balance controller; Balance controller is according to the average voltage level of cell in the quantity counting cell module of the sample voltage value of battery module and corresponding cell, and all monomer battery voltages in corresponding average voltage level and the battery module are compared; When the voltage relationship of setting with balance controller between the average voltage level of cell in monomer battery voltage, the battery module is corresponding; Balance controller is to electric weight balance module output balanced control signal; Initiatively balanced to corresponding cell in the battery module, the average voltage level of cell in monomer battery voltage, the battery module and the interior voltage relationship of setting of balance controller are complementary.
Said electric weight balance module comprises transformer T1, and the centre cap of said transformer T1 primary coil links to each other with the negative pole end of battery module, the positive terminal ground connection of battery module; The positive and negative measuring switch that extremely is equipped with of any cell in the battery module; The measuring switch at cell two ends is corresponding with the two ends of transformer T1 secondary coil to link to each other; One end of transformer T1 primary coil is through the first equalizer switch ground connection; The other end is through the second equalizer switch ground connection, and the control end of first equalizer switch and second equalizer switch links to each other with the output of balance controller respectively; The control end of cell two ends measuring switch links to each other with the output of balance controller; The monomer battery voltage measurement module comprises operational amplifier, and the in-phase end of said operational amplifier, end of oppisite phase are corresponding with the two ends of transformer T1 secondary coil to link to each other, and the output of operational amplifier links to each other with the input of balance controller.
One end of said transformer T1 secondary coil links to each other with the measuring switch of cell positive terminal in the battery module through positive bus, and the other end of transformer T1 secondary coil links to each other with the measuring switch of cell negative pole end in the battery module through negative bus.
The measuring switch at said cell two ends, first equalizer switch and second equalizer switch all adopt FET; First equalizer switch and the second equalizer switch corresponding drain electrode end are corresponding with the two ends of transformer T1 primary coil to link to each other; The corresponding source terminal ground connection of first equalizer switch and second equalizer switch, the gate terminal of first equalizer switch and second equalizer switch links to each other with the output of balance controller; The corresponding gate terminal of measuring switch all links to each other with balance controller, and link to each other corresponding with cell of drain electrode end that measuring switch is corresponding, the corresponding source terminal of measuring switch links to each other with the secondary coil of transformer T1.
Said balance controller is compared the voltage of cell in the battery module with the average voltage level of cell, when | U
Max-U
Ave| φ | U
Min-U
Ave| the time, through the electric weight balance module the maximum cell of said magnitude of voltage is carried out upper limit equilibrium; When | U
Max-U
Ave| π | U
Min-U
Ave| the time, through the electric weight balance module the minimum cell of said magnitude of voltage is carried out the lower limit equilibrium; U
MaxThe maximum monomer battery voltage of expression magnitude of voltage, U
MinThe minimum monomer battery voltage of expression magnitude of voltage.
The advantage of the utility model: the magnitude of voltage through battery module between the battery voltage sampling module is input in the balance controller, and obtains the average voltage level of cell in the battery module; Balance controller is sampled to the magnitude of voltage of cell through the monomer battery voltage measurement module; Maximum monomer battery voltage value, the monomer battery voltage value of magnitude of voltage minimum and the average voltage level of cell of magnitude of voltage compares between balance controller; Can carry out equilibrium to the cell of maximum electric weight in the cell and the cell of minimum amount of power; Cell electric weight relation is complementary in electric weight relation in battery module between all cells and the balance controller, can prolong the useful life of battery module; The electric weight balance module comprises transformer T1; To the equilibrium of cell electric weight the time; Through the process that converts mutual charge or discharge of electric energy-magnetic energy-electric energy, realized the upper limit or the balanced function of lower limit to the battery cell electric weight, upper limit equilibrium is adapted in the charging process balanced; Prevent that the individual cell monomer from overcharging, can both add to identical state with the energy that guarantees every batteries monomer; The lower limit equilibrium can be avoided putting; The active equalizing system of the utility model to upper and lower limit equilibrium have both, solved the charge balancing and the equalization discharge of battery module simultaneously, kill two birds with one stone; Effect is high, and the loss power consumption is little, need not to adopt cooling provision to improve system balancing simultaneously, prolongs the operating time and the useful life of battery pack.
Description of drawings
Fig. 1 is the theory diagram of the utility model.
Embodiment
Below in conjunction with concrete accompanying drawing and embodiment the utility model is described further.
As shown in Figure 1: the utility model comprises battery module 1, negative bus 2, positive bus 3, battery voltage sampling module 4, balance controller 5, electric weight balance module 6, measuring switch control bus 7 and monomer battery voltage measurement module 8.
As shown in Figure 1: said battery module 1 is composed in series by 2n cell; The positive terminal ground connection of battery module 1; The negative pole end of battery module 1 links to each other with the input of balance controller 5 through battery voltage sampling module 4; The voltage of 4 pairs of battery modules 1 of battery voltage sampling module is sampled, and the magnitude of voltage of battery module 1 is input in the balance controller 5; Said balance controller 5 single-chip microcomputer or other microprocessors for having analog-digital conversion function.The two ends of any cell all are provided with measuring switch in the battery module 1; Measuring switch links to each other with the input of balance controller 5 through monomer battery voltage measurement module 8, and monomer battery voltage measurement module 8 is used for the magnitude of voltage of any cell in the battery module 1 all sampled and is input in the balance controller 5.Said monomer battery voltage measurement module 8 all adopts operational amplifier U1 with battery voltage sampling module 4.In order corresponding cell in the battery module 1 to be carried out equilibrium control, the output of balance controller 5 links to each other with electric weight balance module 6.
Said electric weight balance module 6 comprises transformer T1; The centre cap of said transformer T1 primary coil and the negative pole end of battery module 1 and battery voltage sampling module 4; One end of transformer T1 primary coil is through the first equalizer switch SW1 ground connection; The other end is through the second equalizer switch SW2 ground connection, and the first equalizer switch SW1 links to each other with balance controller 5 respectively with the control end of the second equalizer switch SW2.During practical implementation; The first equalizer switch SW1 and the second equalizer switch SW2 all adopt FET; The gate terminal of said FET all links to each other with the output of balance controller 5, the source terminal ground connection of FET, and the drain electrode end of FET links to each other with the primary coil of transformer T1.One end of transformer T1 secondary coil links to each other with the measuring switch that is positioned at the cell negative pole end through negative bus 2; The other end of transformer T1 secondary coil links to each other with the measuring switch that is positioned at the cell positive terminal through positive bus 3, thereby extremely links to each other cells all in the secondary coil of transformer T1 and the battery module 1 is positive and negative.When the measuring switch at cell two ends is closed, and the measuring switch at all the other cell two ends is when all breaking off, and the secondary coil of transformer T1 can link to each other with corresponding cell; Can realize equilibrium to corresponding cell electric weight.Said measuring switch also adopts FET; The gate terminal of said FET links to each other with the output of balance controller 5 through measuring switch control bus 7; The drain electrode end of FET links to each other with the electrode tip of cell, and the source terminal of FET links to each other with the secondary coil of transformer T1.The in-phase end of the operational amplifier U1 of monomer battery voltage measurement module 8 and end of oppisite phase link to each other with the secondary coil two ends of transformer T1 respectively, thereby have realized the measuring switch at cell positive and negative electrode two ends is linked to each other with operational amplifier U1.
When specifically balanced, when balance controller 5 detects the individual battery cell B of i (when i is odd number)
iMonomer battery voltage U
iAverage voltage level U with cell
AveDiffer maximum, and when satisfying the balanced condition of lower limit, then balance controller 5 makes the first equalizer switch SW1 conducting, makes battery module 1 to transformer T1 charging, breaks off the first equalizer switch SW1 then, the closed corresponding S that measures
i, S
I+1, transformer T1 energy stored is transferred to i battery cell B
iOn; If detect i (when i is even number) battery cell B
iVoltage U
iAverage voltage level U with batteries monomer
AveDiffer maximum, and when satisfying the balanced condition of lower limit, then balance controller 5 makes the second equalizer switch SW2 conducting, makes battery module 1 to transformer T1 charging, breaks off the second equalizer switch SW2 then, closed corresponding measuring switch S
i, S
I+1, transformer T1 energy stored is transferred to i battery cell B
iOn.When balance controller 5 detects the individual battery cell B of i (when i is odd number)
iMonomer battery voltage U
iAverage voltage level U with cell
AveDiffer maximum, and when satisfying the balanced condition of the upper limit, then balance controller 5 closed corresponding measuring switch S
i, S
I+1, make battery cell B
iTo transformer T1 charging, break off measuring switch S then
i, S
I+1, the closed first equalizer switch SW1, the energy of transformer T1 storage is transferred in the battery module 1; When measuring i (when i is even number) battery cell B
iVoltage U
iAverage voltage level U with batteries monomer
AveDiffer maximum, and when satisfying the balanced condition of the upper limit, then balance controller 5 closed corresponding measuring switch S
i, S
I+1, make battery cell B
iTo transformer T1 charging, break off measuring switch S then
i, S
I+1, the closed second equalizer switch SW2, the energy of transformer T1 storage is transferred in the battery module 1.Balance controller 5 compares through the magnitude of voltage to cell, comes the electric weight of cell in the battery module 1 is carried out equilibrium.After cell carries out equilibrium through balance controller 5 and electric weight balance module 6, make the magnitude of voltage U of cell
iAverage voltage level U with cell
AveBetween difference during smaller or equal to 50 μ V, balance controller 5 is accomplished the balancing procedure to cell in the battery module 1.Also set corresponding balance parameters in the balance controller 5, as the magnitude of voltage U of cell according to need of work
iAverage voltage level U with cell
AveBetween difference satisfy corresponding balance parameters after, balance controller 5 is accomplished the equilibrium control to cell.
Balanced in order above-mentioned power lithium-ion battery to be carried out active, the active equalization methods of said power lithium-ion battery comprises the steps:
A, battery module 1 is provided, said battery module 1 is composed in series by 2n cell successively, and n is a positive integer; The positive terminal ground connection of battery module 1, the negative pole end of battery module 1 links to each other with the input of balance controller 5 through battery voltage sampling module 4, and battery voltage sampling module 4 is with the voltage U of battery module 1
SumBe input in the balance controller 5, and obtain the average voltage level U of cell in the battery module 1
AveThe average voltage level U of cell
AveBe arithmetic mean;
B, measuring switch all is set at the two ends of above-mentioned cell; The measuring switch that links to each other with the cell positive terminal links to each other with an end of transformer T1 secondary coil through positive bus 3, and the measuring switch that links to each other with the cell negative pole end links to each other with the other end of transformer T1 secondary coil through negative bus 2; The two ends of transformer T1 secondary coil link to each other with the input of monomer battery voltage measurement module 8, and an end of transformer T1 primary coil is through the first equalizer switch SW1 ground connection, and the other end is through the second equalizer switch SW2 ground connection; The control end of the first equalizer switch SW1, the second equalizer switch SW2 and measuring switch all links to each other with the output of balance controller 5;
C, the disconnection first equalizer switch SW1 and the second equalizer switch SW2; The corresponding measuring switch in closed successively cell two ends; To the measurement that circulates successively of the cell electric weight in the battery module 1, monomer battery voltage inputs in the balance controller 5 through monomer battery voltage measurement module 8;
During to the cell electrical measurement in the battery module 1, break off the first equalizer switch SW1 and the second equalizer switch SW2; Balance controller 5 is the measuring switch S1 and the measuring switch S2 of closed cell B1 both sides earlier, and monomer battery voltage measurement module 8 is input to the voltage of cell B1 in the balance controller 5; Balance controller 5 breaks off measuring switch S1 then; And closed the 3rd measuring switch S3; Monomer battery voltage measurement module 8 is input to the voltage of cell B2 in the balance controller 5; Balance controller 5 is controlled the measuring switch at cell two ends in the battery module 1 successively, all is input in the balance controller 5 until the magnitude of voltage with 2n cell; The closing time of the corresponding measuring switch of balance controller 5 controls is 0.1ms;
The average voltage level U of the cell that d, balance controller 5 obtain step c obtaining among voltage and the step a of cell
AveCompare; Balance controller 5 carries out upper limit equilibrium, the low cell of electric weight is carried out the lower limit equilibrium the high cell of electric weight through transformer T1, the first equalizer switch SW1 and the second equalizer switch SW2;
When the cell equilibrium was controlled in 5 pairs of battery modules of balance controller 1, balance controller 5 was with the average voltage level U of maximum voltage value in the cell and minimum voltage value and cell
AveCompare, when | U
Max-U
Ave| φ | U
Min-U
Ave| the time, the cell maximum to said magnitude of voltage carries out upper limit equilibrium; When | U
Max-U
Ave| π | U
Min-U
Ave| the time, the cell minimum to said magnitude of voltage carries out the lower limit equilibrium; U
MaxThe maximum monomer battery voltage of expression magnitude of voltage, U
MinThe minimum monomer battery voltage of expression magnitude of voltage;
When balance controller 5 detects the individual battery cell B of i (when i is odd number)
iMonomer battery voltage U
iAverage voltage level U with cell
AveDiffer maximum, and when satisfying the balanced condition of lower limit, then balance controller 5 makes the first equalizer switch SW1 conducting, makes battery module 1 to transformer T1 charging, breaks off the first equalizer switch SW1 then, the closed corresponding S that measures
i, S
I+1, transformer T1 energy stored is transferred to i battery cell B
iOn; If detect i (when i is even number) battery cell B
iVoltage U
iAverage voltage level U with batteries monomer
AveDiffer maximum, and when satisfying the balanced condition of lower limit, then balance controller 5 makes the second equalizer switch SW2 conducting, makes battery module 1 to transformer T1 charging, breaks off the second equalizer switch SW2 then, closed corresponding measuring switch S
i, S
I+1, transformer T1 energy stored is transferred to i battery cell B
iOn;
When balance controller 5 detects the individual battery cell B of i (when i is odd number)
iMonomer battery voltage U
iAverage voltage level U with cell
AveDiffer maximum, and when satisfying the balanced condition of the upper limit, then balance controller 5 closed corresponding measuring switch S
i, S
I+1, make battery cell B
iTo transformer T1 charging, break off measuring switch S then
i, S
I+1, closed first equalizer switch (SW1), the energy of transformer T1 storage is transferred in the battery module 1; When measuring i (when i is even number) battery cell B
iVoltage U
iAverage voltage level U with batteries monomer
AveDiffer maximum, and when satisfying the balanced condition of the upper limit, then balance controller 5 closed corresponding measuring switch S
i, S
I+1, make battery cell B
iTo transformer T1 charging, break off measuring switch S then
i, S
I+1, the closed second equalizer switch SW2, the energy of transformer T1 storage is transferred in the battery module 1; In entire cell module 1 electric weight of all cells all with balance controller 5 in balance parameters be complementary.
The utility model is input in the balance controller 5 through the magnitude of voltage of 4 battery modules 1 of battery voltage sampling module, and obtains the average voltage level of cell in the battery module 1; Balance controller 5 is sampled through the magnitude of voltage of 8 pairs of cells of monomer battery voltage measurement module; Maximum monomer battery voltage value, the monomer battery voltage value of magnitude of voltage minimum and the average voltage level of cell of 5 magnitudes of voltage of balance controller compares; Can carry out equilibrium to the cell of maximum electric weight in the cell and the cell of minimum amount of power; Cell electric weight relation is complementary in electric weight relation in battery module 1 between all cells and the balance controller 5, can prolong the useful life of battery module 1; Electric weight balance module 6 comprises transformer T1; To the equilibrium of cell electric weight the time; Through the process that converts mutual charge or discharge of electric energy-magnetic energy-electric energy, realized the upper limit or the balanced function of lower limit to the battery cell electric weight, upper limit equilibrium is adapted in the charging process balanced; Prevent that the individual cell monomer from overcharging, can both add to identical state with the energy that guarantees every batteries monomer; The lower limit equilibrium can be avoided putting; The active equalizing system of the utility model to upper and lower limit equilibrium have both, solved the charge balancing and the equalization discharge of battery module 1 simultaneously, kill two birds with one stone; Effect is high, and the loss power consumption is little, need not to adopt cooling provision to improve system balancing simultaneously, prolongs the operating time and the useful life of battery pack.
Claims (4)
1. the active equalizing system of a power lithium-ion battery; It is characterized in that: comprise the battery module (1) that is composed in series by some cells, said battery module (1) links to each other with the input of balance controller (5) through battery voltage sampling module (4); The measuring switch at any cell two ends links to each other with the input of balance controller (5) through monomer battery voltage measurement module (8) in the battery module (1); Any cell all links to each other with electric weight balance module (6) in the battery module (1), and electric weight balance module (6) links to each other with the output of balance controller (5);
Battery voltage sampling module (4) is input to the voltage sample of battery module (1) in the balance controller (5), and monomer battery voltage measurement module (8) is input to corresponding monomer battery voltage in the battery module (1) in the balance controller (5); Balance controller (5) is according to the average voltage level of the interior cell of quantity counting cell module (1) of the sample voltage value of battery module (1) and corresponding cell, and all monomer battery voltages in corresponding average voltage level and the battery module (1) are compared; When the voltage relationship of setting with balance controller (5) between the average voltage level of cell in monomer battery voltage, the battery module (1) is corresponding; Balance controller (5) is to electric weight balance module (6) output balanced control signal; Initiatively balanced to corresponding cell in the battery module (1), the average voltage level of monomer battery voltage, the interior cell of battery module (1) and the interior voltage relationship of setting of balance controller (5) are complementary.
2. the active equalizing system of power lithium-ion battery according to claim 1; It is characterized in that: said electric weight balance module (6) comprises transformer T1; The centre cap of said transformer T1 primary coil links to each other with the negative pole end of battery module (1), the positive terminal ground connection of battery module (1); The positive and negative measuring switch that extremely is equipped with of any cell in the battery module (1); The measuring switch at cell two ends is corresponding with the two ends of transformer T1 secondary coil to link to each other; One end of transformer T1 primary coil is through first equalizer switch (SW1) ground connection; The other end is through second equalizer switch (SW2) ground connection, and the control end of first equalizer switch (SW1) and second equalizer switch (SW2) links to each other with the output of balance controller (5) respectively; The control end of cell two ends measuring switch links to each other with the output of balance controller (5); Monomer battery voltage measurement module (8) comprises operational amplifier (U1); The in-phase end of said operational amplifier (U1), end of oppisite phase are corresponding with the two ends of transformer T1 secondary coil to link to each other, and the output of operational amplifier (U1) links to each other with the input of balance controller (5).
3. the active equalizing system of power lithium-ion battery according to claim 2; It is characterized in that: an end of said transformer T1 secondary coil links to each other with the measuring switch of the interior cell positive terminal of battery module (1) through positive bus (3), and the other end of transformer T1 secondary coil links to each other with the measuring switch of the interior cell negative pole end of battery module (1) through negative bus (2).
4. the active equalizing system of power lithium-ion battery according to claim 2, it is characterized in that: the measuring switch at said cell two ends, first equalizer switch (SW1) and second equalizer switch (SW2) all adopt FET; First equalizer switch (SW1) and second equalizer switch (SW2) corresponding drain electrode end are corresponding with the two ends of transformer T1 primary coil to link to each other; The corresponding source terminal ground connection of first equalizer switch (SW1) and second equalizer switch (SW2), the gate terminal of first equalizer switch (SW1) and second equalizer switch (SW2) links to each other with the output of balance controller (5); The corresponding gate terminal of measuring switch all links to each other with balance controller (5), and link to each other corresponding with cell of drain electrode end that measuring switch is corresponding, the corresponding source terminal of measuring switch links to each other with the secondary coil of transformer T1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201198878U CN202111481U (en) | 2011-04-21 | 2011-04-21 | Active equalization system of power lithium ion batteries |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201198878U CN202111481U (en) | 2011-04-21 | 2011-04-21 | Active equalization system of power lithium ion batteries |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202111481U true CN202111481U (en) | 2012-01-11 |
Family
ID=45436930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201198878U Expired - Fee Related CN202111481U (en) | 2011-04-21 | 2011-04-21 | Active equalization system of power lithium ion batteries |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202111481U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102170154A (en) * | 2011-04-21 | 2011-08-31 | 无锡市凌翔电气驱动技术有限公司 | An active equalizing system and an equalizing method of power lithium ion battery |
| CN103887569A (en) * | 2014-04-04 | 2014-06-25 | 淄博贝林电子有限公司 | Electric switch type automatic equalization battery module |
| CN107634273A (en) * | 2016-12-26 | 2018-01-26 | 普天新能源车辆技术有限公司 | The equalizing system and method for electrokinetic cell |
| CN110062994A (en) * | 2017-04-17 | 2019-07-26 | 株式会社Lg化学 | Device and method for preventing overcharge |
| CN111049205A (en) * | 2018-10-12 | 2020-04-21 | 宏碁股份有限公司 | Battery management method and power supply system |
| CN112644335A (en) * | 2020-12-23 | 2021-04-13 | 杭州电子科技大学 | Active equalizing charging device and method for power battery |
-
2011
- 2011-04-21 CN CN2011201198878U patent/CN202111481U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102170154A (en) * | 2011-04-21 | 2011-08-31 | 无锡市凌翔电气驱动技术有限公司 | An active equalizing system and an equalizing method of power lithium ion battery |
| CN103887569A (en) * | 2014-04-04 | 2014-06-25 | 淄博贝林电子有限公司 | Electric switch type automatic equalization battery module |
| CN103887569B (en) * | 2014-04-04 | 2016-01-06 | 淄博贝林电子有限公司 | Motor switch formula automatic equalization battery module |
| CN107634273A (en) * | 2016-12-26 | 2018-01-26 | 普天新能源车辆技术有限公司 | The equalizing system and method for electrokinetic cell |
| CN107634273B (en) * | 2016-12-26 | 2020-02-21 | 普天新能源车辆技术有限公司 | Balancing system and method for power battery |
| CN110062994A (en) * | 2017-04-17 | 2019-07-26 | 株式会社Lg化学 | Device and method for preventing overcharge |
| CN110062994B (en) * | 2017-04-17 | 2023-01-06 | 株式会社Lg新能源 | Apparatus and method for preventing overcharge |
| CN111049205A (en) * | 2018-10-12 | 2020-04-21 | 宏碁股份有限公司 | Battery management method and power supply system |
| CN112644335A (en) * | 2020-12-23 | 2021-04-13 | 杭州电子科技大学 | Active equalizing charging device and method for power battery |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102170154A (en) | An active equalizing system and an equalizing method of power lithium ion battery | |
| CN104935045B (en) | Battery pack equalization method for energy storage system adopting nickel-series storage batteries | |
| CN103236732B (en) | Active equalizing system and equalizing method for power lithium ion battery pack | |
| CN101752624B (en) | Equalizing charge method and equalizing charge device for battery | |
| CN104734236B (en) | Battery set charge/discharge device and method | |
| CN202111481U (en) | Active equalization system of power lithium ion batteries | |
| CN102005794B (en) | Battery pack charging management system and method | |
| CN201478865U (en) | Improved charging balanced circuit | |
| CN101931243A (en) | Battery pack management system based on wireless network and control method thereof | |
| CN107658936A (en) | A kind of battery detection and equalizing system and its control method | |
| KR20120077482A (en) | Balance charging apparatus for battery module | |
| CN102231552A (en) | Battery management and lossless equalization system | |
| CN103915875A (en) | Lithium battery charging and discharging control system for novel solar street lamp | |
| CN102324773A (en) | Electric quantity balancing chip of power lithium ion serial battery pack | |
| CN104283276A (en) | Novel lithium battery pack protective plate | |
| CN203326628U (en) | Intelligent management system of cell | |
| CN106671813A (en) | Battery balancing method and battery management system | |
| CN202309118U (en) | Transformer scan chain type storage battery equalizing circuit | |
| CN201854071U (en) | Battery pack charging management system | |
| TWI635691B (en) | Battery pack active balancing system | |
| TWI548179B (en) | Range extension from active discharging balance device and controlling method thereof | |
| CN202206148U (en) | Battery pack management and lossless equalization system | |
| CN202142882U (en) | Power battery charger having discharging function | |
| CN205407296U (en) | Complementary equalizer circuit of group battery | |
| CN204258377U (en) | A kind of lithium battery group intelligent balance recovers charger |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190221 Address after: 214125 No. 59-10 Xiuxi Road, Binhu District, Wuxi City, Jiangsu Province Patentee after: Wuxi Lingbo Electronic Technology Co., Ltd. Address before: 214125 Xiuxi Road, Binhu District, Wuxi City, Jiangsu Province, No. 59 Jiaotong University Creative Park Building 10 Patentee before: Wuxi City Lingxiang Electric Driving Technology Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120111 Termination date: 20200421 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |