CN202353273U - Balanced output control circuit for power battery packs - Google Patents
Balanced output control circuit for power battery packs Download PDFInfo
- Publication number
- CN202353273U CN202353273U CN 201120526634 CN201120526634U CN202353273U CN 202353273 U CN202353273 U CN 202353273U CN 201120526634 CN201120526634 CN 201120526634 CN 201120526634 U CN201120526634 U CN 201120526634U CN 202353273 U CN202353273 U CN 202353273U
- Authority
- CN
- China
- Prior art keywords
- battery pack
- power battery
- control circuit
- output control
- capacitor
- 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
Abstract
A balanced output control circuit for power battery packs comprises a plurality of lithium ion cells and a DC/DC (direct-current/direct-current) step-up circuit connected between the lithium ion cells and an external load, all the lithium ion cells are arranged in parallel, and an internal battery pack voltage-balancing circuit is formed between the lithium ion cells. The step-up circuit comprises a switching transistor, a capacitor (C1) and a capacitor (C2), the switching transistor is controlled by an IC (integrated circuit) chip, the capacitor (C1) is connected with the low voltage input end, the capacitor (C2) serves as a high voltage output end, and the on-off of the two capacitors is controlled by the switching transistor. The balanced output control circuit for power battery packs effectively solves the problem that the cells of a lithium ion power battery pack are not consistent, the cost is low, the balancing effect is good, the overall performance of the battery pack is guaranteed, the service life of the battery pack is prolonged, a great deal of cost is saved, and the balanced output control circuit for power battery packs ensures to a certain degree that electric vehicles, energy storage systems and other field can get into the stage of industrialization from the stage of technical research, and provides guarantee for the realization of the globally advocated development concept of energy saving, emission reduction and low-carbon life.
Description
Technical field
The utility model relates to a kind of power battery pack control circuit improvement technology.
Background technology
The electric core of lithium ion power battery that uses in groups at present is difficult to the performance of performance battery pack owing to there is problem of inconsistency, and the life-span also shortens greatly, if change the electric core of inconsistency, cost is higher, is difficult to commercialization.Passing through in the existing mode is passive, initiatively balanced each electric core inconsistency technology is difficult moves battery pack electricity core voltage to balance; The possibility that causes equilibrium to open by mistake when existing treatment circuit unreliable opening; The battery pack overall performance is degenerated, the deterioration of aggravation battery performance.
The utility model content
In view of this, the utility model technical problem that will solve provides the balanced output control circuit of power battery pack that a kind of cost is low, portfolio effect is good.
The utility model adopts following scheme to realize:
The balanced output control circuit of a kind of power battery pack; Comprise a plurality of lithium-ion electric cores and be connected in lithium-ion electric core and external loading between the DC/DC booster circuit; Each lithium-ion electric core forms battery pack builtin voltage balanced loop for being set up in parallel between each lithium-ion electric core.
Wherein, described booster circuit comprises through the switching tube of IC chip controls, connects the capacitor C 1 of low-voltage input and as the capacitor C 2 of high-voltage output terminal, switch controlled two electric capacity break-makes.
The utility model efficiently solves the inconsistent problem of lithium-ion-power cell group electricity core; Cost is low, and good balance effect has guaranteed the overall performance of battery pack; Extend the life-span of battery pack; Save great amount of cost, for fields such as electric motor car, energy-storage system get into industrialization phase from the technical research stage certain guarantee is provided, the idea of development of advocating for energy-saving and emission-reduction, the whole world of low-carbon (LC) life realizes providing assurance.
Description of drawings
Fig. 1 is the utility model embodiment circuit theory diagrams.
Fig. 2 is a present embodiment booster circuit schematic diagram.
Embodiment
Below will combine accompanying drawing and embodiment that the utility model is described in further detail for the ease of it will be appreciated by those skilled in the art that:
Shown in accompanying drawing 1.The balanced output control circuit of the power battery pack of present embodiment design is a kind of solution of power battery pack lithium-ion electric core problem of inconsistency; Make the battery pack whole structure reach optimum state, performance optimum performance; Improve battery pack useful life; Save battery pack and share cost, for power battery pack provides assurance in the strategic industry development of applications such as electric automobile, energy-storage system.
In the present embodiment; The balanced output control circuit of this power battery pack comprise a plurality of lithium-ion electric cores 1 and be connected in lithium-ion electric core 1 and external loading 2 between DC/DC booster circuit 3; And each lithium-ion electric core 1 forms battery pack builtin voltage balanced loop for being set up in parallel; Make whole battery group inside guarantee the balanced consistent of battery pack through the equilibrium of own nature.
Simultaneously; The booster circuit of present embodiment design comprises through the switching tube 32 of IC chip 31 controls, connects the capacitor C 1 of low-voltage input DC1 and as the capacitor C 2 of high-voltage output terminal DC2; Low pressure input DC1 connects battery pack; High-voltage output end DC2 connects load, switching tube 32 controls two electric capacity break-makes.This booster circuit adopts switching tube 32 and utilizes the transient effect that discharges and recharges of two electric capacity to boost and guarantee the high efficiency conversion, can satisfy the high-tension requirement of electric automobile, energy-storage system even load.In detail shown in accompanying drawing 2.
IC chip that present embodiment adopts and switching tube all can adopt existing IC chip and switching tube, do not give unnecessary details at this.
More than be the wherein concrete implementation of the utility model, it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these conspicuous replacement forms all belong to the protection range of the utility model.
Claims (2)
1. the balanced output control circuit of a power battery pack; Comprise a plurality of lithium-ion electric cores (1) and be connected in lithium-ion electric core and external loading (2) between DC/DC booster circuit (3); It is characterized in that: each lithium-ion electric core forms battery pack builtin voltage balanced loop for being set up in parallel between each lithium-ion electric core.
2. the balanced output control circuit of power battery pack according to claim 1; It is characterized in that: described booster circuit comprises switching tube (32) through IC chip (31) control, connect the capacitor C 1 of low-voltage input and as the capacitor C 2 of high-voltage output terminal, switch controlled two electric capacity break-makes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120526634 CN202353273U (en) | 2011-12-16 | 2011-12-16 | Balanced output control circuit for power battery packs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120526634 CN202353273U (en) | 2011-12-16 | 2011-12-16 | Balanced output control circuit for power battery packs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202353273U true CN202353273U (en) | 2012-07-25 |
Family
ID=46542237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120526634 Expired - Fee Related CN202353273U (en) | 2011-12-16 | 2011-12-16 | Balanced output control circuit for power battery packs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202353273U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107839529A (en) * | 2017-11-09 | 2018-03-27 | 威艾能源（惠州）有限公司 | A kind of battery management system and its application |
-
2011
- 2011-12-16 CN CN 201120526634 patent/CN202353273U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107839529A (en) * | 2017-11-09 | 2018-03-27 | 威艾能源（惠州）有限公司 | A kind of battery management system and its application |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101552479B (en) | Direct-current voltage reducing circuit | |
| CN102290856B (en) | Double-power device and power supplying method thereof | |
| CN204304788U (en) | A kind of DC power supply device of city rail vehicle air-conditioning | |
| CN102035265A (en) | Wireless charging system of capacitor storage battery | |
| CN108275012A (en) | Active equalization circuit with balanced power supply | |
| CN101783521B (en) | Charging and discharging dynamic voltage-balancing circuit and power supply using same | |
| CN102983608A (en) | Composite lithium battery and supercapacitor power supply control device for electromobile | |
| CN106208699A (en) | A kind of mixed energy storage system DC converter based on Buck/Boost circuit and control method thereof | |
| CN201369580Y (en) | Super capacitor and battery mixing module | |
| CN102700428A (en) | Control system and control method for electric automobile with lithium battery and super capacitor | |
| CN101944754A (en) | Direct current step-up/step-down circuit | |
| CN202856422U (en) | Bidirectional electrical energy transfer circuit | |
| CN103078537B (en) | Auxiliary converter cabinet circuit applicable to electric storage type subway engineering maintenance vehicle | |
| CN202353273U (en) | Balanced output control circuit for power battery packs | |
| CN105322560A (en) | Novel rapid self-equalization circuit of hybrid energy storage system | |
| CN209088562U (en) | A kind of charge and discharge current limliting battery pack parallel control device of minimal switches | |
| CN103683457B (en) | Hybrid power public transport super capacitor and lithium battery parallel circuit | |
| CN201191766Y (en) | Electric automobile fast charging station | |
| CN205212444U (en) | Mix novel fast from equalizer circuit of energy storage system | |
| CN105811050A (en) | Fuel battery system with supercapacitors and lithium batteries | |
| CN202565002U (en) | Balanced-charging power supply circuit | |
| CN202495796U (en) | Battery pack alternatively charging and discharging control device in photovoltaic power generation system | |
| CN207607367U (en) | A kind of heavy duty electrically propelled traction vehicle battery management system | |
| CN206697972U (en) | A kind of super capacitor charging system based on battery | |
| CN105449815A (en) | Automotive energy starting, stopping and storing system and energy storing method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20191216 |