CN201616689U - Charge-discharge equalization system of battery pack - Google Patents
Charge-discharge equalization system of battery pack Download PDFInfo
- Publication number
- CN201616689U CN201616689U CN2010201032825U CN201020103282U CN201616689U CN 201616689 U CN201616689 U CN 201616689U CN 2010201032825 U CN2010201032825 U CN 2010201032825U CN 201020103282 U CN201020103282 U CN 201020103282U CN 201616689 U CN201616689 U CN 201616689U
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- battery pack
- battery
- charge
- equalizer
- series
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model relates to a charge-discharge equalization system of a battery pack, which comprises the series-connected battery pack, wherein an equalizer is arranged on a circuit of the series-connected battery pack, each battery in the battery pack is provided with a high-speed electronic switch, the batteries are connected with an energy storage device through the high-speed electronic switches, and the high-speed electronic switches are connected with the equalizer and controlled by the equalizer. The charge-discharge equalization system can thoroughly solve the phenomenon of over-discharge or disequilibrium over-charge of a single battery in the series-connected battery pack, the energy is transferred by non-destructive two-way, the new and the old batteries can be matched for use, and no maintenance is needed during the whole service life, thereby eliminating the high cost of replacing the batteries, greatly prolonging the service life of the battery pack, always ensuring the energy equalization of the battery pack during the energy decay process of 100%-80%-60%, and leading the service life to be up to about 10 years.
Description
Technical field
The utility model belongs to a kind of battery pack that has equalizing system, relates in particular to the battery pack that is used for electric motor car.
Background technology
Traditional battery series connection service life on average is no more than 4 years at most, because if having one, to discharge and recharge back performance and other unequal, will cause in the series connection one or several battery performances to descend rapidly, even more renew, in very short time, can occur the different phenomenons of performance again, cause to whole system to have a strong impact on.Though have battery pack that charge and discharge balancing circuit and discharge voltage testing circuit are arranged at present,, still can not solve practical problem because ability of equalization deficiency and testing result can not get handling.
The utility model content
It is unstable and then cause the battery set charge/discharge equalizing system that whole battery group lost efficacy in advance that the purpose of this utility model provides a kind of single battery that can not cause because of battery set charge/discharge is unbalanced.
In order to achieve the above object by the following technical solutions: a kind of battery set charge/discharge equalizing system, comprise series battery, the series battery circuit is provided with equalizer, each battery in the battery pack is provided with high speed electronic switch, battery is connected with accumulator by high speed electronic switch, and high speed electronic switch is connected with equalizer and controlled by equalizer.
Described battery pack comprises two series-connected cells at least.
The utility model has thoroughly solved the series battery single battery and has crossed and put or overcharge unbalanced phenomena, energy is harmless two-way transfer, new used batteries can be arranged in pairs or groups and be selected for use, whole life period does not need any maintenance, exempt the high cost of changing storage battery, the life-span of battery pack is improved greatly, energy is from the 100%-80%-60% attenuation process, all the time guarantee the battery pack power balance, and reach useful life about 10 years.
Description of drawings
Accompanying drawing is the utility model structural representation.
Embodiment
As shown in Figure 1, 2, a kind of battery set charge/discharge equalizing system, comprise serial lithium battery group 1, the series battery circuit is provided with equalizer 2, each battery in the battery pack is provided with high speed electronic switch 3, battery is connected with accumulator 4 by high speed electronic switch, and high speed electronic switch is connected with equalizer and controlled by equalizer.
Described lithium battery group comprises the lithium battery of eight series connection.
The utility model battery set charge/discharge equalizing system guarantees that series battery is in charge and discharge process, if when having certain cell voltage to be higher than the average voltage tendency, this equalizing system will be transferred in the accumulator by the high speed electronic switch energy content of battery that electric energy is higher, make it be in mean state, otherwise, if when having certain cell voltage to be lower than the average voltage tendency, this equalizing system will be transferred to electric energy in the lower battery of electric energy by high speed electronic switch from accumulator, make it be in mean state all the time.
Battery pack also can be the battery pack that other storage batterys are formed, and its number can be 3,4,5,6,10,15 etc.
Claims (2)
1. battery set charge/discharge equalizing system, comprise series battery, the series battery circuit is provided with equalizer, it is characterized in that: each battery in the battery pack is provided with high speed electronic switch, battery is connected with accumulator by high speed electronic switch, and high speed electronic switch is connected with equalizer and controlled by equalizer.
2. battery set charge/discharge equalizing system according to claim 1 is characterized in that: described battery pack comprises two series-connected cells at least.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201032825U CN201616689U (en) | 2010-01-28 | 2010-01-28 | Charge-discharge equalization system of battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201032825U CN201616689U (en) | 2010-01-28 | 2010-01-28 | Charge-discharge equalization system of battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201616689U true CN201616689U (en) | 2010-10-27 |
Family
ID=43003051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201032825U Expired - Fee Related CN201616689U (en) | 2010-01-28 | 2010-01-28 | Charge-discharge equalization system of battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201616689U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102222964A (en) * | 2011-06-28 | 2011-10-19 | 中国科学院广州能源研究所 | Equalizing system and method for energy storage system |
| CN102231555A (en) * | 2011-07-15 | 2011-11-02 | 安徽省高程电子科技有限公司 | Energy recovery management system of electromobile battery pack and management method thereof |
| CN102270862A (en) * | 2011-02-24 | 2011-12-07 | 上海瑞华(集团)有限公司 | Vehicle-mounted battery management system having bidirectional and automatic balance |
-
2010
- 2010-01-28 CN CN2010201032825U patent/CN201616689U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102270862A (en) * | 2011-02-24 | 2011-12-07 | 上海瑞华(集团)有限公司 | Vehicle-mounted battery management system having bidirectional and automatic balance |
| CN102270862B (en) * | 2011-02-24 | 2013-12-25 | 上海瑞华(集团)有限公司 | Vehicle-mounted battery management system having bidirectional and automatic balance |
| CN102222964A (en) * | 2011-06-28 | 2011-10-19 | 中国科学院广州能源研究所 | Equalizing system and method for energy storage system |
| CN102222964B (en) * | 2011-06-28 | 2013-06-19 | 中国科学院广州能源研究所 | Equalizing system and method for energy storage system |
| CN102231555A (en) * | 2011-07-15 | 2011-11-02 | 安徽省高程电子科技有限公司 | Energy recovery management system of electromobile battery pack and management method thereof |
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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: 20101027 Termination date: 20140128 |