CN207433326U - A kind of dynamic lithium battery manages system - Google Patents
A kind of dynamic lithium battery manages system Download PDFInfo
- Publication number
- CN207433326U CN207433326U CN201721571966.6U CN201721571966U CN207433326U CN 207433326 U CN207433326 U CN 207433326U CN 201721571966 U CN201721571966 U CN 201721571966U CN 207433326 U CN207433326 U CN 207433326U
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- Prior art keywords
- lithium battery
- voltage
- management system
- module
- stablizer
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- 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
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
The utility model provides a kind of dynamic lithium battery management system, including:Lithium battery group, by several lithium battery groups into；Sub- management system is electrically connected with the single lithium battery, for monitoring the working condition of lithium battery, including current detecting submodule, voltage detecting submodule, battery voltage-stablizer, broken-circuit controller and temperature adjustment module；Main management system for receiving the detection information of sub- management system, and manages the working condition of lithium battery group, including voltage monitoring module, current detection module；Temperature detecting module and main voltage-stablizer.The utility model management system and the setting of main management system, realize the multi-layer management of single lithium battery and battery pack, the setting of battery voltage-stablizer overcomes the otherness between each lithium battery, main voltage-stablizer makes the output voltage boosting of lithium battery group provide the voltage value stablized and be suitble to for the rated voltage of motor.
Description
Technical field
The utility model is related to technical field of battery management, are specially a kind of dynamic lithium battery management system.
Background technology
Battery management system, cell management system of electric automobile (BMS) are connection vehicle mounted dynamic battery and electric vehicle
Important tie, major function include：Battery physical parameter monitors in real time；Battery status is estimated；Inline diagnosis and early warning；Fill,
Electric discharge is controlled with preliminary filling；Balanced management and heat management etc..
China Patent Publication No. manages circuit and lithium battery for a kind of charging and discharging lithium battery that " CN103928958A " is provided
Management system, including lithium battery, control module, main switch module, current limiting switch module, sampling resistor and short-circuit detecting mould
Block；Wherein, main switch module is connected to the output terminal of capacitive load, the input terminal connection lithium of capacitive load with current limiting switch module altogether
The anode of battery；Main switch module, current limiting switch module and short-circuit detecting module are connected to the first end of sampling resistor altogether, sampling
The cathode of the second end connection lithium battery of resistance；Control module be also connected with main switch module, current limiting switch module, lithium battery and
Short-circuit detecting module is detected or controls.In the prior art, lithium battery management system is chiefly used in lithium battery group, but in lithium
When battery pack is damaged, mostly since single lithium battery short circuit causes series connection group breaking, entire lithium battery group electric discharge is disconnected at this time
Circuit is unnecessary, at the same to electric vehicle be continuing with and later maintenance causes big inconvenience.
China Patent Publication No. manages system for a kind of charging and discharging lithium battery that " CN102916456A " is provided, and lithium battery is
Single lithium battery, the system comprises charging and discharging lithium battery management module, lithium battery voltage Cross prevention module, lithium battery electric discharges
Overcurrent protection module and boost module.The charging and discharging lithium battery management system and method that this application provides, realizes single-lithium-battery
The application management in pond overcomes the series connection of multisection lithium battery in the prior art and causes otherness between each lithium battery.Above-mentioned application
It is also contemplated that battery under different operating temperatures, outputs and inputs power and has certain limitations, meanwhile, electric vehicle institute
The rated voltage and power of the motor used are inconsistent, and single battery boosting output, which differs, surely meets making for motor
With requiring, also need to adjust the boost module in this multiple application, bring certain inconvenience, while each lithium battery is risen
Pressure, increases the loss of energy, reduces the cruising ability of battery pack, a kind of dynamic lithium battery management provided by the utility model
System can manage single lithium battery and battery pack simultaneously.
Utility model content
The purpose of this utility model is to provide a kind of dynamic lithium batteries to manage system, to solve to carry in above-mentioned background technology
The problem of going out.
To achieve the above object, the utility model provides following technical solution：
A kind of dynamic lithium battery manages system, including:
Lithium battery group, by several lithium battery groups into；
Sub- management system is electrically connected with the single lithium battery, for monitoring the working condition of lithium battery, bag
It includes：For detecting the current detecting submodule of lithium battery discharge current size；For detecting the electricity of lithium battery discharge voltage size
Press detection sub-module；For making the battery voltage-stablizer of lithium battery output voltage stabilization；For disconnecting charging and discharging lithium battery circuit
Broken-circuit controller and the temperature adjustment module for adjusting lithium battery operating temperature；
Main management system is electrically connected with sub- management system, for receiving the detection information of sub- management system, and manages
The working condition of lithium battery group, including：
Voltage monitoring module is used to set the minimum discharge voltage threshold value of lithium battery, and is less than in lithium battery discharge voltage
Broken-circuit controller disconnecting circuit is controlled during minimum discharge voltage threshold value, the voltage monitoring module is additionally provided with rated voltage detection mould
Block, the rated voltage detection module is electrically connected with motor, for detecting the rated voltage of the work of motor；
Current detection module is connected with lithium battery group, for detecting lithium battery group discharge current size and setting lithium electricity
Pond highest discharging current threshold, and when lithium battery discharge current is higher than highest discharging current threshold broken-circuit controller is controlled to disconnect
Circuit；
Temperature detecting module is used to detect the temperature inside and outside lithium battery group；And
Main voltage-stablizer is electrically connected with main management system, for the output voltage stabilization of lithium battery group to be made to be motor
Rated voltage.
Preferably, the temperature detecting module includes being arranged on the inside and outside temperature monitor of lithium battery group, described
Temperature adjustment module includes heating module and radiating module, and the heating module uses Electric radiant Heating Film, and the Electric radiant Heating Film is mounted on lithium
Battery lower end, the radiating module use coolant, are equipped with coolant pipe between the lithium battery, the coolant is in coolant
Pipe inner recirculation flow leads to.
Preferably, the lithium battery group is electrically connected with charge relay, and the charge relay is connected with charger, institute
Stating motor and being electrical connected has electric discharge relay.
Preferably, the battery voltage-stablizer uses TPS61230 boost converters, and the main voltage-stablizer is steady using LT8302
Depressor.
Preferably, the current detection module uses Hall current sensor.
Compared with prior art, the beneficial effects of the utility model are：
The utility model management system is managed single lithium battery working condition, main management system to battery pack into
Row management, realizes the multi-layer management of single lithium battery and battery pack, and temperature adjustment module makes battery maintain suitable work
Make temperature, reduce influence of the temperature to battery performance；Current detecting submodule and voltage detecting submodule detection single-lithium-battery
The discharge current and discharge voltage in pond, the electric discharge for disconnecting single lithium battery when discharge current is excessive by broken-circuit controller are returned
Road, it is more convenient to use reliable without disconnecting the discharge loop of entire lithium battery group, when some cell discharge voltage is less than normally
During discharge voltage, by battery voltage-stablizer output voltage is made to reach the voltage value of normal battery operation requirement, overcome each lithium electricity
Otherness between pond.Voltage monitoring module controls main voltage-stablizer according to the rated voltage of the work of the motor detected, main
Voltage-stablizer makes the rated voltage that the output voltage boosting voltage stabilizing of lithium battery group is motor, provides the voltage value stablized and be suitble to.
Description of the drawings
Fig. 1 is the structure diagram of the utility model；
Fig. 2 is the son management system structure diagram of the utility model；
Fig. 3 is main management system's structure diagram of the utility model；
Fig. 4 is the temperature adjustment module structure diagram of the utility model；
Fig. 5 is the main voltage regulator circuit figure of the utility model；
Fig. 6 is the battery voltage regulator circuit figure of the utility model.
In figure：1 lithium battery, 2 coolant pipes and 3 Electric radiant Heating Films.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained shall fall within the protection scope of the present invention.
- 6 are please referred to Fig.1, the utility model provides a kind of technical solution：
A kind of dynamic lithium battery manages system, including lithium battery group, sub- management system and main management system.
Lithium battery group is made of several lithium batteries 1, which uses common 18650 type lithium in electronic product
Ion battery, nominal voltage 3.7V.
Sub- management system is electrically connected with single lithium battery 1, for monitoring the working condition of lithium battery 1.Son management system
System includes current detecting submodule, voltage detecting submodule, battery voltage-stablizer, broken-circuit controller and temperature adjustment module.Electric current
Detection sub-module detects 1 discharge current size of lithium battery with lithium battery 1；Voltage detecting submodule detection lithium in parallel with lithium battery 1
1 discharge voltage size of battery；Battery voltage-stablizer is used to make 1 output voltage stabilization of lithium battery；Broken-circuit controller is electric for disconnecting lithium
1 charging and discharging circuit of pond；Temperature adjustment module is used to adjust 1 operating temperature of lithium battery.
Main management system is electrically connected with sub- management system, for receiving the detection information of sub- management system, and manages
The working condition of lithium battery group, including voltage monitoring module, current detection module, temperature detecting module and main voltage-stablizer.
Voltage monitoring module is set as 3.2V for setting 1 minimum discharge voltage threshold value of lithium battery in the present embodiment, and
1 discharge voltage of lithium battery controls broken-circuit controller disconnecting circuit when being less than minimum discharge voltage threshold value, prevents battery is crossed from putting damage
Battery reduces battery life.Voltage monitoring module is additionally provided with rated voltage detection module, rated voltage detection module and motor
It is electrically connected, for detecting the rated voltage of the work of motor, the motor that is used due to existing electric vehicle is simultaneously differed
It causes, rated voltage detection module examines the rated voltage of motor, transfers data to main voltage-stablizer automatically, and main voltage-stablizer is automatic
Output voltage is adjusted to rated voltage, reduces the time of setting.Current detection module uses Hall current sensor, with lithium
Battery pack is connected, for detecting lithium battery group discharge current size and setting 1 highest discharging current threshold of lithium battery, when detecting
When lithium battery group discharge current is more than highest discharging current threshold, the electric discharge electricity of starting current detection sub-module detection lithium battery 1
Stream detects to control broken-circuit controller disconnecting circuit by sub- management system when some 1 electric current of lithium battery is excessively high, reduces single electricity
Influence of the pond to entire battery pack.
Temperature detecting module, is used to detect the temperature inside and outside lithium battery group, and battery is defeated under different operating temperatures
Enter and had certain limitations with output power, then need to control battery in most suitable operating temperature.Temperature detecting module includes
The inside and outside temperature monitor of lithium battery group is arranged on, as shown in figure 4, temperature adjustment module includes heating module and heat dissipation
Module, heating module use Electric radiant Heating Film 3, and Electric radiant Heating Film is mounted on 1 lower end of lithium battery, can individually adjust the temperature of lithium battery 1.Heat dissipation
Module uses coolant, and coolant pipe 2 is equipped between lithium battery 1, and coolant is led in 2 inner recirculation flow of coolant pipe, reduces lithium electricity
Bulk temperature in pond.
Sub- management system is managed 1 working condition of single lithium battery, and main management system is managed battery pack, real
Showing the multi-layer management of single lithium battery 1 and battery pack, temperature adjustment module makes battery pack maintain suitable operating temperature,
Reduce influence of the temperature to battery performance；Current detecting submodule and voltage detecting submodule detect putting for single lithium battery 1
Electric current and discharge voltage disconnect the discharge loop of single lithium battery 1 when discharge current is excessive by broken-circuit controller, without
The discharge loop of entire lithium battery group is disconnected, it is more convenient to use reliable, when some cell discharge voltage is less than regular picture electricity
During pressure, by battery voltage-stablizer output voltage is made to reach the voltage value of normal battery operation requirement, overcome between each lithium battery
Otherness.Voltage monitoring module controls main voltage-stablizer, main voltage-stablizer according to the rated voltage of the work of the motor detected
The output voltage boosting voltage stabilizing for making lithium battery group is the rated voltage of motor, provides the voltage value stablized and be suitble to.
Lithium battery group is electrically connected with charge relay, and charge relay is connected with charger, and motor, which is electrical connected, to be had
Discharge relay, when voltage monitoring module and current detection module, which detect, to be overcharged or cross the state put, can turn off charging
Relay or electric discharge relay, prevent lithium battery group from damaging when being subject to overcharge and overdischarge.
As shown in Figure 5 and Figure 6, battery voltage-stablizer uses TPS61230 boost converters, with the electric discharge of lithium battery 1, lithium
The voltage of battery 1 also declines therewith, simultaneously because the otherness between lithium battery 1, can cause the electric discharge between lithium battery 1 uneven
Weighing apparatus, 1 minimum discharge voltage threshold value of lithium battery is set as 3.2V in the present embodiment, TPS61230 boost converter energy in the present embodiment
Input voltage 3V~5V is boosted into 5V, meets the discharge curve of lithium battery 1.Main voltage-stablizer uses LT8302 voltage-stablizers, implements
4V~42V can be inputted and is converted to 48V outputs, even if several lithium batteries 1 break down, broken-circuit controller by main voltage-stablizer in example
Its power circuit is disconnected, can also meet electric motor normal working voltage.
While there has been shown and described that the embodiment of the utility model, for the ordinary skill in the art,
It is appreciated that in the case where not departing from the principle of the utility model and spirit can these embodiments be carried out with a variety of variations, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of dynamic lithium battery manages system, which is characterized in that including:
Lithium battery group is made of several lithium batteries (1)；
Sub- management system is electrically connected with the single lithium battery (1), for monitoring the working condition of lithium battery (1), bag
It includes：For detecting the current detecting submodule of lithium battery (1) discharge current size；It is big for detecting lithium battery (1) discharge voltage
Small voltage detecting submodule；For making the battery voltage-stablizer of lithium battery (1) output voltage stabilization；For disconnecting lithium battery (1)
The broken-circuit controller of charging and discharging circuit and the temperature adjustment module for adjusting lithium battery (1) operating temperature；
Main management system is electrically connected with sub- management system, for receiving the detection information of sub- management system, and manages lithium electricity
The working condition of pond group, including：
Voltage monitoring module is used to set the minimum discharge voltage threshold value of lithium battery (1), and low in lithium battery (1) discharge voltage
Broken-circuit controller disconnecting circuit is controlled when minimum discharge voltage threshold value, the voltage monitoring module is additionally provided with rated voltage detection
Module, the rated voltage detection module is electrically connected with motor, for detecting the rated voltage of the work of motor；
Current detection module is connected with lithium battery group, for detecting lithium battery group discharge current size and setting lithium battery (1)
Highest discharging current threshold, and control broken-circuit controller breaks when lithium battery (1) discharge current is higher than highest discharging current threshold
Open circuit；
Temperature detecting module is used to detect the temperature inside and outside lithium battery group；And
Main voltage-stablizer is electrically connected with main management system, for making the volume that the output voltage stabilization of lithium battery group is motor
Constant voltage.
2. a kind of dynamic lithium battery management system according to claim 1, it is characterised in that：The temperature detecting module bag
It includes and is arranged on the inside and outside temperature monitor of lithium battery group, the temperature adjustment module includes heating module and radiating mould
Block, the heating module use Electric radiant Heating Film (3), and the Electric radiant Heating Film is mounted on lithium battery (1) lower end, and the radiating module is using cold
But liquid, coolant pipe (2) is equipped between the lithium battery (1), and the coolant is led in coolant pipe (2) inner recirculation flow.
3. a kind of dynamic lithium battery management system according to claim 1, it is characterised in that：The lithium battery group electrically connects
Charge relay is connected to, the charge relay is connected with charger, and the motor, which is electrical connected, electric discharge relay.
4. a kind of dynamic lithium battery management system according to claim 1, it is characterised in that：The battery voltage-stablizer uses
TPS61230 boost converters, the main voltage-stablizer use LT8302 voltage-stablizers.
5. a kind of dynamic lithium battery management system according to claim 1, it is characterised in that：The current detection module is adopted
Use Hall current sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721571966.6U CN207433326U (en) | 2017-11-22 | 2017-11-22 | A kind of dynamic lithium battery manages system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721571966.6U CN207433326U (en) | 2017-11-22 | 2017-11-22 | A kind of dynamic lithium battery manages system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207433326U true CN207433326U (en) | 2018-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721571966.6U Expired - Fee Related CN207433326U (en) | 2017-11-22 | 2017-11-22 | A kind of dynamic lithium battery manages system |
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| CN (1) | CN207433326U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109742819A (en) * | 2018-12-28 | 2019-05-10 | 国网北京市电力公司 | The power control method and device of local discharge sensor |
-
2017
- 2017-11-22 CN CN201721571966.6U patent/CN207433326U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109742819A (en) * | 2018-12-28 | 2019-05-10 | 国网北京市电力公司 | The power control method and device of local discharge sensor |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| 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: 20180601 Termination date: 20201122 |