CN203387207U - An equalization circuit of a battery set - Google Patents
An equalization circuit of a battery set Download PDFInfo
- Publication number
- CN203387207U CN203387207U CN201320318685.5U CN201320318685U CN203387207U CN 203387207 U CN203387207 U CN 203387207U CN 201320318685 U CN201320318685 U CN 201320318685U CN 203387207 U CN203387207 U CN 203387207U
- Authority
- CN
- China
- Prior art keywords
- circuit
- equalization
- circuits
- acquisition
- battery set
- 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
- 238000012544 monitoring process Methods 0.000 claims description 15
- 230000002457 bidirectional effect Effects 0.000 abstract description 3
- 238000013461 design Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- 239000000178 monomer Substances 0.000 description 6
- 230000008901 benefit Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Images
Landscapes
- Secondary Cells (AREA)
Abstract
The utility model discloses an equalization circuit of a battery set. The equalization circuit of the battery set comprises N acquisition equalization modules, current guiders, bidirectional DC circuits, CAN communication circuits, power supply management circuits, voltage acquisition circuits, and a monitor host machine. The voltage acquisition circuits are in parallel connection with the both ends of the acquisition equalization modules and are used for carrying out voltage acquisition on the acquisition equalization modules. The voltage acquisition circuits send acquired voltage data to the monitor host machine. The monitor host machine sets a threshold value of the acquisition equalization modules in advance, and when the threshold value is surpassed, the acquisition equalization modules will be in conductive connection with the current guiders, the bidirectional DC circuits, the CAN communication circuits, and the power supply management circuits until the preset threshold value is reached. Compared with equalization circuits of battery sets in the prior art, the equalization circuit of the battery set is advantageous in that: the structure is simple in design and low in manufacturing cost; the mode of the equalization circuit of the battery set belongs to lossless equalization modes, so that an integral energy density of the battery set is raised; and according to usage conditions and environments of the battery set, programmable active equalization is carried out, so that the usage life of the battery set can be prolonged.
Description
[technical field]
The utility model relates to the battery management technical field, relates in particular to a kind of equalizing circuit of battery pack.
[background technology]
Cell is because the reasons such as production technology cause the difference of each battery capacity and performance, in the process that battery pack is discharged and recharged, will inevitably enlarge this species diversity, during charging, the battery of the little poor performance of capacity there will be and overcharges phenomenon, during electric discharge, the battery of the little poor performance of capacity had again puts phenomenon, the battery capacity utilance can be more and more lower, and if things go on like this, this vicious circle process will speed up the damage of battery.Therefore, need to adopt equalizing circuit be the common recognition of Chinese scholars and industry with the life-span that extends battery pack to power battery pack.
Existing equalization methods generally can be divided into and diminishes equilibrium and non-dissipative equalizing; Below various balanced way is briefly introduced: 1, shunt resistance equalization in parallel, but the resistance of a break-make in parallel on each cell, he can play the effect of shunting, the voltage of each cell in system acquisition, after wherein having monomer battery voltage to surpass the certain threshold values of average voltage if find, this cell of conducting the resistance connect are shunted.Shortcoming is excessive ability loss, obviously is not suitable for high power capacity, high-tension application scenario.2, the electric capacity equalization that shuttles back and forth, the method comprises cascade electric capacity shuttle back and forth equalization and flying capacitance equalization.Cascade electric capacity shuttle back and forth equalization utilize series capacitance between battery pack back and forth switching realize that electric voltage equalization discharges and recharges, the bidirectional switch switching by single-pole double throw, the battery that each electric capacity can be adjacent with two is connected.The flying capacitance equalization that shuttles back and forth is can be charged to obtain electric weight by the monomer of high electric weight by electric capacity, then, selects the monomer of low electric weight to be charged and reports electric weight.The battery charge balancing method of shuttling back and forth is restricted the balance frequency of circuit owing to introducing electric capacity, and the life and reliability of single-pole double-throw switch (SPDT) is fatal problem simultaneously, and the method needs the support of battery measurement supervisory control system in addition, the system more complicated that becomes.
In view of above drawback, be necessary to provide a kind of equalizing circuit of battery pack to overcome above-mentioned defect in fact.
[utility model content]
The purpose of this utility model is to provide a kind of equalizing circuit of efficient battery pack, and its structural design is simple, and energy that can the loss battery, can use safely.
To achieve these goals, the utility model adopts following technical scheme: a kind of equalizing circuit of battery pack, comprise that N gathers balance module, the conduct current device, two-way DC circuit, the CAN communicating circuit, electric power management circuit, voltage collection circuit and monitoring host computer, wherein, described voltage collection circuit is connected in parallel on the two ends that gather balance module, for to gathering balance module, carrying out voltage acquisition, voltage collection circuit is sent to monitoring host computer by gathered voltage data, monitoring host computer sets in advance a threshold values that gathers balance module, when surpassing this threshold values, gather balance module just can with the conduct current device, two-way DC circuit, CAN communicating circuit and electric power management circuit conducting are until reach predefined threshold values.
A kind of improvement as the equalizing circuit of the utility model battery pack, described collection balance module comprises the cell of n1 series connection, and described cell connection is connected to conduct current device, two-way DC circuit, CAN communicating circuit and electric power management circuit by gating switch K respectively.
As a kind of improvement of the equalizing circuit of the utility model battery pack, described monitoring host computer sets in advance a threshold values that gathers balance module, and this threshold values is for gathering in balance module the scope of the voltage difference between the cell that can allow to exist.
Compared with prior art, the equalizing circuit of the utility model battery pack has following advantage: structural design is simple, low cost of manufacture, belong to the non-dissipative equalizing mode, promoted the integral energy density of battery pack, according to service condition and the environment of battery pack, programmable active equalization, can extend the life-span of battery pack.
[accompanying drawing explanation]
The circuit diagram of the equalizing circuit that Fig. 1 is the utility model battery pack.
[embodiment]
The equalizing circuit of a kind of battery pack of the utility model, comprise that N gathers balance module, the conduct current device, two-way DC circuit, the CAN communicating circuit, electric power management circuit, voltage collection circuit and monitoring host computer, wherein, described voltage collection circuit is connected in parallel on the two ends that gather balance module, for to gathering balance module, carrying out voltage acquisition, voltage collection circuit is sent to monitoring host computer by gathered voltage data, monitoring host computer sets in advance a threshold values that gathers balance module, when surpassing this threshold values, gather balance module just can with the conduct current device, two-way DC circuit, CAN communicating circuit and electric power management circuit conducting are until reach predefined threshold values.
Gather the cell that balance module comprises n1 series connection, described cell connection is connected to conduct current device, two-way DC circuit, CAN communicating circuit and electric power management circuit by gating switch K respectively.
Monitoring host computer sets in advance a threshold values that gathers balance module, and this threshold values is for gathering in balance module the scope of the voltage difference between the cell that can allow to exist.
Please refer to shown in Fig. 1, below the utility model be elaborated as follows with specific embodiment:
Each gathers balance module and includes n1 (BT1, BT2, BT3 ... BT12) individual, amount to 12 cells, these are together monomer series-connected, voltage collection circuit can will be uploaded to monitoring host computer after the real time end voltage acquisition of each monomer voltage, monitoring host computer is sorted, is compared these data, if between the discovery cell, pressure reduction surpasses the threshold values of setting, monitoring host computer sends balanced CAN instruction, has comprised the information such as string number, euqalizing current value, balanced unlatching of balanced acquisition module's address, the balanced cell of needs in the CAN instruction.After the balanced acquisition module is received the CAN instruction, open and specify cell balanced gating switch (K1, K2 ... K13), cell is linked in equalizing circuit, like this, after high-tension cell access equalizing circuit, the two-way DC of programmable master control module controls boosts to 24V according to the electric current constant current of setting, and after low-voltage cell access equalizing circuit, the two-way DC of programmable master control module controls power taking from 24V is input in the low-voltage monomer according to setting the electric current constant current.
The equalizing circuit of a kind of battery pack of the utility model, be not restricted to described in specification and execution mode, therefore can easily realize additional advantage and modification for the personnel of familiar field, therefore, in the situation that do not deviate from the spirit and scope of the universal that claim and equivalency range limit, the utility model is not limited to specific details, representational equipment and illustrates here and the examples shown of describing.
Claims (3)
1. the equalizing circuit of a battery pack, it is characterized in that: comprise that N gathers balance module, the conduct current device, two-way DC circuit, the CAN communicating circuit, electric power management circuit, voltage collection circuit and monitoring host computer, wherein, described voltage collection circuit is connected in parallel on the two ends that gather balance module, for to gathering balance module, carrying out voltage acquisition, voltage collection circuit is sent to monitoring host computer by gathered voltage data, monitoring host computer sets in advance a threshold values that gathers balance module, when surpassing this threshold values, gather balance module just can with the conduct current device, two-way DC circuit, CAN communicating circuit and electric power management circuit conducting are until reach predefined threshold values.
2. the equalizing circuit of battery pack according to claim 1, it is characterized in that: described collection balance module comprises the cell of n1 series connection, and described cell connection is connected to conduct current device, two-way DC circuit, CAN communicating circuit and electric power management circuit by gating switch K respectively.
3. the equalizing circuit of battery pack according to claim 2 is characterized in that: described monitoring host computer sets in advance a threshold values that gathers balance module, and this threshold values is for gathering in balance module the scope of the voltage difference between the cell that can allow to exist.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320318685.5U CN203387207U (en) | 2013-06-04 | 2013-06-04 | An equalization circuit of a battery set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320318685.5U CN203387207U (en) | 2013-06-04 | 2013-06-04 | An equalization circuit of a battery set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203387207U true CN203387207U (en) | 2014-01-08 |
Family
ID=49875656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320318685.5U Expired - Fee Related CN203387207U (en) | 2013-06-04 | 2013-06-04 | An equalization circuit of a battery set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203387207U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105207298A (en) * | 2015-10-10 | 2015-12-30 | 西安特锐德智能充电科技有限公司 | Bus-sharing battery charger system flexible grouping and current sharing method |
| CN108110817A (en) * | 2017-08-15 | 2018-06-01 | 哈尔滨工业大学 | Series connection accumulation power supply multipath balancer and method |
-
2013
- 2013-06-04 CN CN201320318685.5U patent/CN203387207U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105207298A (en) * | 2015-10-10 | 2015-12-30 | 西安特锐德智能充电科技有限公司 | Bus-sharing battery charger system flexible grouping and current sharing method |
| CN108110817A (en) * | 2017-08-15 | 2018-06-01 | 哈尔滨工业大学 | Series connection accumulation power supply multipath balancer and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101752624B (en) | Equalizing charge method and equalizing charge device for battery | |
| CN204179729U (en) | A kind of communication discrete lithium battery back-up source | |
| CN110518667B (en) | Echelon utilization battery parallel system and control method thereof | |
| CN102148408B (en) | Method and circuit for cascade compensation balancing of battery pack | |
| CN202014116U (en) | Battery group automatic balancing circuit | |
| CN103094938B (en) | Battery series-parallel connection self-balancing device | |
| CN101895135B (en) | Balanced management system for series connected battery pack based on auxiliary battery and management method thereof | |
| CN205178565U (en) | Electric automobile power battery system's initiative equalizing system | |
| CN106100038A (en) | A kind of agricultural chemical spraying unmanned plane lithium battery group balance control method and device | |
| CN103107565A (en) | Static balanced method of battery management system of electric vehicle | |
| CN104734260A (en) | Power battery equalizing charge method and system | |
| CN201629586U (en) | Battery equalizing charge device | |
| CN103887836A (en) | Battery management system and method | |
| CN202474128U (en) | Cluster analysis-based battery unit grouping system | |
| CN203387207U (en) | An equalization circuit of a battery set | |
| CN106329640A (en) | Battery charging equalization device and battery charging equalization method | |
| CN203691028U (en) | Battery equalization system used for electric automobile | |
| CN203086217U (en) | Lithium battery management system used for electromobile | |
| CN106329590A (en) | Active equalization circuit system with high safety and reliability | |
| CN103312003A (en) | Intelligent balancing management system for batteries | |
| CN204334038U (en) | The charge/discharge balancing system of power battery pack | |
| CN201789314U (en) | Charging device | |
| CN209356645U (en) | A kind of charge/discharge detection instrument of storage battery | |
| CN205811617U (en) | A kind of agricultural chemical spraying unmanned plane lithium battery group equalising control device | |
| CN204835579U (en) | High safe and reliable's initiative equalizer circuit system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Equalizer circuit of dynamic and energy storage battery pack Effective date of registration: 20141218 Granted publication date: 20140108 Pledgee: Export Import Bank of China Pledgor: Shenzhen Optimum Battery Co.,Ltd.|Zhao Bing Registration number: 2014990001097 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20171025 Granted publication date: 20140108 Pledgee: Export Import Bank of China Pledgor: Shenzhen Optimum Battery Co.,Ltd.|Zhao Bing Registration number: 2014990001097 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20180428 Granted publication date: 20140108 |
|
| PP01 | Preservation of patent right | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20210428 Granted publication date: 20140108 |
|
| PD01 | Discharge of preservation of patent | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20210428 Granted publication date: 20140108 |
|
| PP01 | Preservation of patent right | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20230604 Granted publication date: 20140108 |
|
| PD01 | Discharge of preservation of patent | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140108 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |