CN202978335U - Charge and discharge controller for lithium iron phosphate power battery - Google Patents
Charge and discharge controller for lithium iron phosphate power battery Download PDFInfo
- Publication number
- CN202978335U CN202978335U CN 201220637834 CN201220637834U CN202978335U CN 202978335 U CN202978335 U CN 202978335U CN 201220637834 CN201220637834 CN 201220637834 CN 201220637834 U CN201220637834 U CN 201220637834U CN 202978335 U CN202978335 U CN 202978335U
- Authority
- CN
- China
- Prior art keywords
- series
- battery
- circuit
- energy
- charge
- 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
Landscapes
- Secondary Cells (AREA)
Abstract
The utility model discloses a charge and discharge controller for a lithium iron phosphate power battery. The charge and discharge controller comprises a controller body and a series battery formed by N power cells which are connected in series, wherein N-1 battery balance management modules are arranged between the controller body and the series battery, the battery balance management module includes two detection circuits and an adjustment circuit, the detection circuit is composed of two switch circuits which are connected in series and each comprises a diode and a switch tube connected in parallel, two ends of the detection circuit is connected with two ends of the power cell respectively, the adjustment circuit is composed of an inductor and an energy transduction capacitor connected in series, and the adjustment circuit is connected in series with the two detection circuits. The beneficial effects of the utility model are that, the electric potentials among the cells are balanced without loss, and the consistency of the monomer cells of the battery is achieved by energy transduction, so that there is no energy loss, the balance effect is good, the balance efficiency is high, and the life of the battery can be effectively prolonged.
Description
Technical field
The utility model relates to the lithium iron phosphate dynamic battery technical field, relates in particular to a kind of charging-discharging controller of lithium iron phosphate dynamic battery group.
Background technology
Along with constantly progressive and development of society, people are to grow with each passing day for the demand of the energy.Be faced with fossil energy and constantly tighten, the cry that substitutes traditional fossil energy with electric energy is more and more higher, and the lithium ion battery group is widely used with its superior performance.
Yet, due to the certain difference that exists between each cell, put because this species diversity can make the cell existence overcharge or cross in discharging and recharging, and then cause the Rapid Damage of whole lithium battery group.Therefore in charge and discharge process, need to carry out balancing energy to the cell in battery pack, thereby extend the life-span of battery pack.
The utility model content
In order to overcome defects, the utility model provides a kind of charging-discharging controller of lithium iron phosphate dynamic battery group that can the energy non-dissipative equalizing.
to achieve these goals, the technical solution of the utility model is: a kind of charging-discharging controller of lithium iron phosphate dynamic battery group, comprise the series battery that controller body and N joint electrokinetic cell is composed in series, be provided with N-1 battery pack equilibrium management module between shown controller body and series battery, described battery pack equilibrium management module comprises two testing circuits and a Circuit tuning, described testing circuit comprises that two are composed in series by the switching circuit that forms after a diode and paralleled power switches, two end points of testing circuit are connected with the electrokinetic cell two-end-point respectively, described Circuit tuning shifts capacitances in series by an inductance and energy and forms, Circuit tuning is connected with two testing circuits.
The beneficial effects of the utility model are: the current potential between lossless balancing battery group by the transfer of energy, reaches the conforming purpose of each cell of battery pack, energy is lossless, portfolio effect is good, and balanced efficient is high, can effectively extend the life-span of battery pack.
Description of drawings
Fig. 1 is circuit theory diagrams of the present utility model.
Embodiment
Below in conjunction with specific embodiment, the utility model is described further.
as shown in Figure 1, a kind of charging-discharging controller of lithium iron phosphate dynamic battery group, comprise the series battery that controller body and 3 joint electrokinetic cells are composed in series, be provided with 2 battery pack equilibrium management modules between shown controller body and series battery, described battery pack equilibrium management module comprises two testing circuits and a Circuit tuning, described testing circuit comprises that two are composed in series by the switching circuit that forms after a diode and paralleled power switches, two end points of testing circuit are connected with the electrokinetic cell two-end-point respectively, described Circuit tuning shifts capacitances in series by an inductance and energy and forms, Circuit tuning is connected with two testing circuits.
Energy non-dissipative equalizing scheme realizes in the following manner: be provided with 2 battery pack non-dissipative equalizing administration modules in figure, by inductance L
-1, energy shifts capacitor C
1, diode D
1, D
2, D
3, D
4Form.Energy between 2 batteries shifts and mainly realizes by electric capacity, and battery in battery pack pressure reduction has determined the shift direction of the energy content of battery.As cell B
1Greater than B
2The time, switching tube Q
1Conducting, B at this moment
1Energy is transferred to B
2In, inductance L
1Play smoothing effect, to C
1Protect.Work as B
1And C
1When voltage equates, turn-off Q
1, open Q
2Energy passes through C
1, L
-1, D
4Transmit.Work as B
2And C
1When voltage equates, turn-off Q
2Said process constantly repeats, until B
1And B
2Voltage equate, thereby realize balanced.Same B
2And B
3According to identical mode balanced management.Repeat said process, after after a while, battery pack reaches balanced management.
The technical solution of the utility model is not limited to the restriction of above-mentioned specific embodiment, and every technology distortion of making according to the technical solution of the utility model is within all falling into protection range of the present utility model.
Claims (1)
1. the charging-discharging controller of a lithium iron phosphate dynamic battery group, comprise the series battery that controller body and N joint electrokinetic cell is composed in series, it is characterized in that: shown in the controller body and series battery between be provided with N-1 battery pack equilibrium management module, described battery pack equilibrium management module comprises two testing circuits and a Circuit tuning, described testing circuit comprises that two are composed in series by the switching circuit that forms after a diode and paralleled power switches, two end points of testing circuit are connected with the electrokinetic cell two-end-point respectively, described Circuit tuning shifts capacitances in series by an inductance and energy and forms, Circuit tuning is connected with two testing circuits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220637834 CN202978335U (en) | 2012-11-28 | 2012-11-28 | Charge and discharge controller for lithium iron phosphate power battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220637834 CN202978335U (en) | 2012-11-28 | 2012-11-28 | Charge and discharge controller for lithium iron phosphate power battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202978335U true CN202978335U (en) | 2013-06-05 |
Family
ID=48519360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220637834 Expired - Fee Related CN202978335U (en) | 2012-11-28 | 2012-11-28 | Charge and discharge controller for lithium iron phosphate power battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202978335U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103762631A (en) * | 2014-01-03 | 2014-04-30 | 洛阳理工学院 | Active voltage balancing device |
| CN108565921A (en) * | 2018-05-03 | 2018-09-21 | 自贡同发荣实业有限公司 | A kind of charging and discharging lithium battery circuit |
-
2012
- 2012-11-28 CN CN 201220637834 patent/CN202978335U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103762631A (en) * | 2014-01-03 | 2014-04-30 | 洛阳理工学院 | Active voltage balancing device |
| CN103762631B (en) * | 2014-01-03 | 2016-03-30 | 洛阳理工学院 | A kind of active voltage balancing device |
| CN108565921A (en) * | 2018-05-03 | 2018-09-21 | 自贡同发荣实业有限公司 | A kind of charging and discharging lithium battery circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102368628B (en) | Intelligent balance device of power batteries of electric vehicle | |
| CN106532852B (en) | Battery pack equalization circuit based on LC series energy storage | |
| CN101740827A (en) | Active equalization system of lithium-ion power battery and equalization method thereof | |
| CN102163854A (en) | Charge-discharge equalizing circuit of multi-monomer tandem dynamic lithium battery | |
| CN201742141U (en) | Charge and discharge balancing device for serially-connected power storage bodies | |
| CN102832653A (en) | Active equalization circuit for multi-monomer series battery | |
| CN112202218B (en) | Equalizing circuit based on bipolar T-shaped double-resonance switch capacitor converter and control method | |
| CN102593893A (en) | System for realizing balanced discharging of battery sets | |
| CN104868532A (en) | Cuk chopper circuit bidirectional arm-based series storage cell pack bidirectional energy equalizer and control method thereof | |
| CN104201731A (en) | Series connection battery pack two-way charging and discharging equalization circuit based on inductor energy storage | |
| CN202435080U (en) | Active equalization circuit of battery pack formed by connecting multiple single batteries in series | |
| CN203104011U (en) | Charge/discharge managing and equalizing system for storage battery or capacitor | |
| CN101764422A (en) | Equalizer circuit for series-connection charge-discharge unit | |
| CN103346605B (en) | A kind of accumulator battery voltage balancer | |
| CN107785957A (en) | Battery equalizing circuit and implementation method based on normal shock and inverse-excitation converting | |
| CN105932346A (en) | Control method for modular echelon utilization energy storage battery | |
| CN202978335U (en) | Charge and discharge controller for lithium iron phosphate power battery | |
| CN203589787U (en) | Equalization circuit for lithium battery pack | |
| CN105529777A (en) | 2n battery pack equalizing circuit easy to expand | |
| CN201752078U (en) | Charging tube management system of energy transfer way of multi lithium ion battery set | |
| CN204947672U (en) | The two-way non-dissipative equalizing circuit of series battery based on inductive energy storage | |
| CN203827031U (en) | Battery group equalization circuit based on multi-secondary transformer | |
| CN204068357U (en) | A kind of 4 joint series battery Bidirectional charging-discharging equalizing circuits | |
| CN204376462U (en) | The efficient equalizer topological circuit of a kind of double-deck brachium pontis series-connected batteries | |
| CN110649336A (en) | Voltage equalization circuit with complete equalization branch and control method |
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: 20130605 Termination date: 20131128 |