CN207490054U - A kind of non-vehicle-mounted type battery pack balancing device - Google Patents
A kind of non-vehicle-mounted type battery pack balancing device Download PDFInfo
- Publication number
- CN207490054U CN207490054U CN201721350922.0U CN201721350922U CN207490054U CN 207490054 U CN207490054 U CN 207490054U CN 201721350922 U CN201721350922 U CN 201721350922U CN 207490054 U CN207490054 U CN 207490054U
- Authority
- CN
- China
- Prior art keywords
- module
- battery
- battery pack
- vehicle
- discharge
- 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
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model is related to a kind of non-vehicle-mounted type battery pack balancing devices, including main control module, voltage detection module and battery switching executing module, for being connected with each battery module of battery pack, the other end is connected with the voltage detection module for one end of the battery switching executing module；Charging module and discharge module are further included, the charging module is used to be connected with each battery module of battery pack by battery switching executing module, and the discharge module is used to be connected with each battery module of pond group by battery switching executing module.The utility model to non-vehicle-mounted type, unloaded the battery pack got off and carry out charge and discharge balancing control, so as to which battery balanced module damage may be caused due to radiating condition difference when solving the problems, such as that vehicular battery balanced device is integrated in inside battery management system, reliability and the safety of vehicle are improved.
Description
Technical field
The utility model belongs to cell balancing field, and in particular to a kind of non-vehicle-mounted type battery pack balancing device.
Background technology
The power battery pack of electric vehicle is connected in series by multiple battery modules.Lithium ionic cell module voltage is low,
Obtaining high voltage just needs multiple batteries block coupled in series, and few then more than ten of the quantity of battery module is a at most more than 100.Make
During, due to the initial internal resistance of battery module is inconsistent, initial capacity is inconsistent, operating temperature is inconsistent etc.,
Battery module property difference during the manufacturing and use is very big.Through use after a period of time, each battery mould is caused
The Capacity uniformity of block is deteriorated.The service life of battery pack follows Bucket Principle, i.e. minimum capacity of that batteries module etc.
In the capacity of whole group battery pack；The actual capacity for eventually leading to entire battery pack becomes smaller, and the service life shortens, cost increases, so as to shadow
Ring the actually available capacity of the battery pack.Therefore, it in order to ensure the service life of battery, needs to carry out equilibrium treatment to battery pack.
Common battery balanced module is integrated in inside battery management system more, and equilibrium is opened vehicle-mounted in preceding or balancing procedure
Battery management system can acquire the information of voltage of all battery modules, and being selected using this voltage as foundation needs battery to be equalized
Module carries out balanced.But when battery balanced module is integrated in inside battery management system, radiating condition is poor, may make
It is damaged into equalizing circuit, influences vehicle safety.
Utility model content
The purpose of this utility model is to provide a kind of non-vehicle-mounted type battery pack balancing device, to solve vehicular battery
The problem of vehicle safety is influenced due to radiating condition difference when balancer is integrated in inside battery management system.
In order to solve the above technical problems, the technical solution of the utility model is：
A kind of non-vehicle-mounted type battery pack balancing device of the utility model, including main control module, voltage detection module and electricity
Pond switching executing module, one end of the battery switching executing module with each battery module of battery pack for being connected, the other end
It is connected with the voltage detection module；
Charging module and discharge module are further included, the charging module is used for by battery switching executing module and battery pack
Each battery module be connected, the discharge module is used to be connected with each battery module of pond group by battery switching executing module；
Main control module is connected with voltage detection module, charging module, discharge module communication, and control connects the battery switching
Execution module.
Further, human-computer interaction module is further included, the human-computer interaction module is connected with main control module.
Further, main control module is communicated by LIN and is connected with the voltage detection module.
Further, main control module is connected by CAN bus with charging module, discharge module.
Further, the battery switching executing module includes at least one battery switching relay, each battery switching
For connecting a battery module, the other end is connected with the voltage detection module for one end of relay.
Further, charge and discharge switching executing module, one end of the charge and discharge switching executing module and battery are further included
Switching executing module is connected, and other end switching connects the charging module and discharge module, is filled described in master control module controls connection
Electric discharge switching executing module.
Further, the charge and discharge switching executing module is relay.
Further, the charging module is D.C. regulated power supply.
Further, the discharge module is discharge resistance.
Further, the voltage detection module is voltmeter.
The beneficial effects of the utility model：
The non-vehicle-mounted type battery pack balancing device of the utility model, to non-vehicle-mounted type, unloaded the battery pack got off and carried out
Charge and discharge balancing controls, so as to solve when vehicular battery balanced device is integrated in inside battery management system due to heat sink strip
Part difference and the problem of battery balanced module damage may be caused, improve reliability and the safety of vehicle.
Further, battery voltage is detected using multimeter, battery pack is carried out according to the voltage value of detection
Balance route, with realize it is to non-vehicle-mounted type, unloaded the battery pack got off and carry out charge and discharge balancing control.So as to meet non-vehicle
The demand that load formula battery pack is not high to the requirement of real-time of voltage detecting but acquisition precision is more demanding, can ensure each electricity
The static pressure difference of pond module is controlled in higher range.
Further, the non-vehicle-mounted type battery pack balancing device of the utility model is using a charging module and an electric discharge
Module completes the equilibrium to entire battery pack, saves cost.
Description of the drawings
Fig. 1 is the non-vehicle-mounted type battery pack balancing device structure chart of the utility model；
Fig. 2 is the connection circuit diagram of charge and discharge switching executing module and battery pack；
Fig. 3 is the non-vehicle-mounted type battery pack equilibrium method flow chart of the utility model.
Specific embodiment
To make the purpose of this utility model, technical solution and advantage clearer, with reference to the accompanying drawings and embodiments, to this
Utility model is described in further detail.
The non-vehicle-mounted type battery pack balancing device of the utility model, can realize the equilibrium to battery pack, which is
Unload the battery pack of the battery pack got off rather than vehicular.
It is the non-vehicle-mounted type battery pack balancing device structure chart of the utility model as shown in Figure 1, realizes in the battery pack
Multiple battery modules carry out it is balanced.Including main control module, multimeter and battery switching executing module, battery switching executing module
One end be connected with each battery module of battery pack, the other end is connected with multimeter.Charge and discharge switching executing module is further included, is filled
One end of electric discharge switching executing module is connected with battery switching executing module, other end switching connection charging module, discharge module.
Main control module is connected with multimeter, charging module, discharge module communication, control connection battery switching executing module and charge and discharge cutting
Change execution module.The device further includes human-computer interaction module, and human-computer interaction module is connected with main control module.
Battery module in the embodiment can be a single battery, or several single batteries are connected in series
Baby battery group.
Information processing and control core of the main control module for whole device, by relevant Data acquisition and issuance, to electricity
Pond carries out charge and discharge Balance route, and current equilibrium state is sent to human-computer interaction module.
For multimeter for being acquired detection to battery voltage, which has higher voltage measurement accuracy, can
Up to ± 1mV, the static pressure difference that can ensure each battery module using the battery pack after the device equilibrium can reach within 2mV.And
And with LIN communication functions, the voltage value of measurement can be sent to main control module.
Battery switching executing module is made of multiple batteries switching relay, as shown in Fig. 2, each battery switching relay
Input terminal be connected to a battery module, output terminal connection charge and discharge switching executing module and multimeter.These relays by
Master control module controls.Certainly, a battery switching relay is may also set up, as long as being inputted end switching connects each battery module
.
Charge and discharge switching executing module is also made of multiple charge and discharge switching relay, the input terminal connection of each relay
To the output terminal of a battery switching executing module, output terminal connection charge-discharge modules.These relays are by master control module controls.
Certainly, also can switch relay by a charge and discharge to form.
The output terminal switching connection charging module and discharge module of charge and discharge switching executing module.Charging module utilizes direct current
The regulated power supply battery higher to voltage charges, and has CAN communication function, and by master control module controls, can will be current
Charge balancing state is sent to main control module；Discharge module is discharged using the discharge resistance battery higher to potential, is had
CAN communication function, and by master control module controls, current equalization discharge state can be sent to main control module.
It is charged using D.C. regulated power supply to battery module, avoids and charged by power battery to battery module
When caused by battery pack cross situation about putting and occur.
Human-computer interaction module can set balance parameters, and show current equilibrium state, meanwhile, it is also integrally disposed to have equilibrium
Open button.Wherein, balance parameters include type (including ferric phosphate lithium cell or ternary battery), the total appearance of battery pack of battery
Measure a, equilibrium final voltage V1 and euqalizing current I.
Based on above-mentioned non-vehicle-mounted type battery pack balancing device, following method can be used, balanced, this method is carried out to battery pack
Flow it is as shown in Figure 3.Specific method is as follows：
1) device with required balanced battery pack is connected, and the total capacity of battery pack is set by human-computer interaction module
A, equilibrium final voltage V1 and euqalizing current I.
2) it is no reasonable to judge that above-mentioned parameter is provided that.If battery types are ferric phosphate lithium cell, balanced final voltage
V1 need to be more than 3V and less than 4.2V；If battery types are ternary battery, balanced final voltage V1 need to be more than 3V and be less than
3.65V, euqalizing current I need to be less than 0.05A.
3) judge whether balanced unlatching button activates, only just allow to proceed by equilibrium after push button exciting is opened in equilibrium
Action.
4) by the time of repose of all batteries be set as 0, all battery balanced states be set as not completing, all batteries
Electric discharge end time and charging end time are set to current time.
5) it is unfinished electricity that master control module controls battery switching executing module, which recycles be connected to next group of state in order,
Pond module.
6) it reads the corresponding equilibrium state of present battery module, electric discharge end time or charging end time, and according to working as
The preceding time calculates the time of repose t1 of present battery.
7) equilibrium state of present battery module is judged, if equilibrium state is unfinished, to time of repose t1
Judged, entered step 8)；Otherwise control battery switching executing module recycles be connected to next equilibrium state in order
For unfinished battery module.
8) time of repose t1 is judged, judges whether time of repose t1 is more than 30min：If more than then starting to detect
The voltage value V2 of present battery module, and pressure difference V3 is calculated, it enters step 9)；Otherwise, control battery switching executing module is by suitable
It is unfinished battery module that sequence cycle, which is connected to next equilibrium state,.
9) pressure difference V3 is judged：If pressure difference V3 is more than 1mV, discharge module is accessed, with electric current I to the battery mould
Block discharges, until discharge time t2 is more than 2min, terminates the electric discharge to the battery module, and update present battery module pair
The discharge time answered；Otherwise it enters step 10).
If 10) pressure difference V3 is less than -1mV, if less than -1mV, charging module is accessed, the battery module is carried out with electric current I
Charging until charging time t3 is more than 2min, terminates the charging to the battery module, and updates that present battery module is corresponding to fill
The electric time；Otherwise it enters step 11).
If 11) pressure difference V3 is more than or equal to -1V, less than or equal to 1V, then the equilibrium state for updating present battery module is equilibrium
It completes.
12) it when the equilibrium state of all battery modules is balanced completes, completes to the battery balanced of the battery pack.
Wherein, battery standing is acquired into the current voltage of the battery module again after for a period of time so that the collection result ratio
It is relatively accurate.
Generally, a charging module is contained only inside the present apparatus and a discharge module can be completed to entire battery pack
In all battery modules Balance route, and multiple battery packs can be repaired, can largely save cost.
Moreover, having larger euqalizing current in the device, quickly all battery modules can be carried out balanced.
Although the content of the utility model is discussed in detail by above preferred embodiment, but it should be appreciated that on
The description stated is not considered as the limitation to the utility model.After those skilled in the art have read the above, for
A variety of modifications and substitutions of the utility model all will be apparent.Therefore, the scope of protection of the utility model should be by appended
Claim limit.
Claims (10)
1. a kind of non-vehicle-mounted type battery pack balancing device, which is characterized in that cut including main control module, voltage detection module and battery
Execution module is changed, one end of the battery switching executing module with each battery module of battery pack for being connected, the other end and institute
Voltage detection module is stated to be connected；
Charging module and discharge module are further included, the charging module is by battery switching executing module for each with battery pack
Battery module is connected, and the discharge module is used to be connected with each battery module of pond group by battery switching executing module；
Main control module is connected with voltage detection module, charging module, discharge module communication, and control connects the battery switching and performs
Module.
2. non-vehicle-mounted type battery pack balancing device according to claim 1, which is characterized in that further include human-computer interaction mould
Block, the human-computer interaction module are connected with main control module.
3. non-vehicle-mounted type battery pack balancing device according to claim 1, which is characterized in that main control module is led to by LIN
News are connected with the voltage detection module.
4. non-vehicle-mounted type battery pack balancing device according to claim 1, which is characterized in that main control module is total by CAN
Line is connected with charging module, discharge module.
5. non-vehicle-mounted type battery pack balancing device according to claim 1, which is characterized in that the battery switching performs mould
Block includes at least one battery and switches relay, and one end of each battery switching relay is for connecting a battery module, separately
One end is connected with the voltage detection module.
6. non-vehicle-mounted type battery pack balancing device according to claim 1, which is characterized in that further include charge and discharge switching and hold
Row module, one end of the charge and discharge switching executing module are connected with battery switching executing module, described in other end switching connection
Charging module and discharge module, master control module controls connect the charge and discharge switching executing module.
7. non-vehicle-mounted type battery pack balancing device according to claim 6, which is characterized in that the charge and discharge switching performs
Module is relay.
8. non-vehicle-mounted type battery pack balancing device according to claim 1, which is characterized in that the charging module is direct current
Regulated power supply.
9. non-vehicle-mounted type battery pack balancing device according to claim 1, which is characterized in that the discharge module is electric discharge
Resistance.
10. non-vehicle-mounted type battery pack balancing device according to claim 1, which is characterized in that the voltage detection module
For voltmeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721350922.0U CN207490054U (en) | 2017-10-19 | 2017-10-19 | A kind of non-vehicle-mounted type battery pack balancing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721350922.0U CN207490054U (en) | 2017-10-19 | 2017-10-19 | A kind of non-vehicle-mounted type battery pack balancing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207490054U true CN207490054U (en) | 2018-06-12 |
Family
ID=62480725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721350922.0U Expired - Fee Related CN207490054U (en) | 2017-10-19 | 2017-10-19 | A kind of non-vehicle-mounted type battery pack balancing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207490054U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111435153A (en) * | 2019-01-14 | 2020-07-21 | 河南森源重工有限公司 | Battery pack voltage adjusting device and voltage adjusting control method thereof |
-
2017
- 2017-10-19 CN CN201721350922.0U patent/CN207490054U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111435153A (en) * | 2019-01-14 | 2020-07-21 | 河南森源重工有限公司 | Battery pack voltage adjusting device and voltage adjusting control method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102231546B (en) | Battery management system with balanced charge and discharge functions and control method thereof | |
| CN102445663B (en) | Method for estimating battery health of electric automobile | |
| CN102508165B (en) | Method for evaluating self-discharge consistency of lithium iron phosphate battery | |
| CN103715737B (en) | A kind of charging and discharging lithium battery management system | |
| CN101860056A (en) | Power lithium battery pack balancing and managing system based on Map model | |
| CN109687548B (en) | Supplementary electric formula of storage battery initiative balancing unit | |
| CN107834626A (en) | The equalization methods and equalizing system of a kind of power battery pack | |
| CN104052130A (en) | Iron phosphate lithium battery power supply management system used for service robots and working method | |
| CN105857109A (en) | Electric automobile power management system based on single chip microcomputer | |
| CN111483350B (en) | Balance and micro-short circuit detection method for power battery pack | |
| Aizpuru et al. | Passive balancing design for Li-ion battery packs based on single cell experimental tests for a CCCV charging mode | |
| Lv et al. | Performance of LiFePO4 batteries in parallel based on connection topology | |
| CN103698716A (en) | Attenuation coefficient-based method for evaluating dischargeable electric quantity of series battery pack | |
| CN107618397A (en) | Battery management system | |
| CN104681851B (en) | A kind of vapour vehicle lithium-ion power battery method for group matching | |
| CN107819336A (en) | The equalization methods of lithium battery, device and system | |
| CN103217651A (en) | Method and system for estimating charge state of storage battery | |
| CN111628535A (en) | Battery module balance control method and device | |
| CN105871021A (en) | Battery management system and method for rapidly charging battery pack of electric bicycle | |
| CN203632319U (en) | Lithium battery charging/discharging management system | |
| CN106655301A (en) | Power management system and method suitable for electric fork-lift truck | |
| CN207753126U (en) | A kind of lithium battery management system | |
| CN103872727B (en) | Method for determining largest use current of lithium-ion battery | |
| CN102376979A (en) | Charge-discharge automatically equalized lithium-ion power battery series battery pack | |
| CN208969217U (en) | Lead-acid batteries run detection system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180612 Termination date: 20211019 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |