CN207819479U - A kind of battery charging and discharging management system - Google Patents
A kind of battery charging and discharging management system Download PDFInfo
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- CN207819479U CN207819479U CN201721754088.1U CN201721754088U CN207819479U CN 207819479 U CN207819479 U CN 207819479U CN 201721754088 U CN201721754088 U CN 201721754088U CN 207819479 U CN207819479 U CN 207819479U
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- battery
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- charging
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Abstract
The utility model discloses a kind of battery charging and dischargings to manage system,Including control unit and battery set charge/discharge unit,Battery set charge/discharge unit includes inverter circuit and several charge and discharge basic units,Each charge and discharge basic unit includes the battery unit formed in single battery group,Transformer,Rectification circuit and charging protecting module,Battery pack charging input end connects to form outer shroud charge circuit with the input side of all transformers respectively after inverter circuit,In each charge and discharge basic unit,The outlet side of transformer successively with rectified current,Charging protecting module,Inner ring charge circuit is formed after battery unit connection,All cell discharge output end series connection outputs,The utility model battery charging and discharging manages system,The charging of each battery unit of battery pack is orthogonal,It does not interfere with each other,Charge balancing,It is not in charge less,The phenomenon that filling insatiable hunger,And battery pack charging input end charging voltage it is relatively low when,It can still charge to each battery unit of battery pack.
Description
Technical field
The utility model is related to power technique fields, particularly relate to a kind of battery charging and discharging management system.
Background technology
Existing battery pack, the interior each battery unit of group, which is substantially, to be used in series.It is defeated by the battery pack of each battery cells in series
Though exportable higher output voltage when going out, both ends also need higher charging voltage when charging.It, can not when charging voltage is relatively low
It charges, causes in the waste of low-voltage electricity in charging process, especially vehicle electric system, automobile inertial to battery pack
Or run slowly down, the electric energy of kinetic energy conversion need to usually be recycled and be stored into battery pack, however, the low-voltage electricity under low speed because
Storage can not be recycled, and the energy is caused to be lost in, this is one of the main reason for existing electric vehicle cruising ability is poor.And to obtain
Booster circuit need to be usually added in charging circuit in higher charging voltage, though booster circuit to a certain extent can be by charging voltage
It improves, but available voltage is also limited by certain boosting multiplying power after boosting, and its charging current substantially reduces after boosting, fills
Electricity speed it is slow, or even will appear because electric current is too low can not charge the case where.Meanwhile each battery cells in series, charging electricity
Road is unique, and electric current is distributed unitedly in circuit, and charging rate is limited, charge less easily occurs, fills the phenomenon that insatiable hunger, that is, causes each battery list
First charge and discharge are unbalanced, influence battery pack service life.
Invention content
The purpose of this utility model is to provide a kind of battery charging and dischargings to manage system.
A kind of battery charging and discharging management system, including control unit and battery set charge/discharge unit, battery set charge/discharge list
Member includes inverter circuit and several charge and discharge basic units, and each charge and discharge basic unit includes one formed in single battery group
A battery unit, transformer, rectification circuit and charging protecting module, battery pack charging input end are filled after inverter circuit with all
The input side of the transformer for basic unit of discharging connects to form outer shroud charge circuit, and current detecting is additionally provided on outer shroud charge circuit
Module and voltage detection module, in each charge and discharge basic unit, the outlet side of transformer successively with rectified current, charge protection
Inner ring charge circuit is formed after module, battery unit connection, the battery unit both ends in each charge and discharge basic unit are also drawn
There are cell discharge output end, the cell discharge output end series connection output of all charge and discharge basic units, battery pack to fill
Control terminal, current detection module and the voltage detection module of the inverter circuit of discharge cell are connect with control unit respectively.
Further, charging protecting module includes charging overcurrent protection module and temperature detection protection module.Existing charging
Protection module only includes usually charging overcurrent protection module or charging overvoltage protection module, can only prevent overcurrent or overvoltage charging
The danger brought, and the danger that cannot prevent other from being brought such as temperature influence, the utility model charging protecting module include not only
Charge overcurrent protection module, and the danger that can prevent overcurrent charge-carrying belt from coming further comprises temperature detection protection module, chargeable process
Medium temperature spends the danger in high band, and various aspects protection improves the safety of charging.
Further, over-current signal output module, over-current signal output module and control are equipped in the overcurrent protection module that charges
Unit connection processed.In this way, the case where whether facilitating control unit that the charging of each battery unit is normal, is sent to alarm modules or aobvious
Show that module carries out alarm or display, informs.
Further, charging protecting module includes that full electricity stops filling protection module, and full electricity stops filling protection module in battery
When the corresponding battery unit electricity of group is full of, the charging to the battery unit is disconnected.In this way, the battery unit is avoided to overcharge, send out
The danger of raw explosion.
Further, each charge and discharge basic unit further includes that the low potential positioned at cell discharge output end front end moves back
Go out discharge module, it includes the control switch on the circuit of cell discharge output end unilateral side that the low potential, which exits discharge module,
Q1, it is connected between the circuit of cell discharge output end both sides and positioned at the control switch Q2 of the rear ends control switch Q1, charge and discharge
When two terminal potential of battery unit in basic unit is normal, corresponding low potential exits control switch Q1 conductings, the control of discharge module
Make switch Q2 cut-offs；When battery unit both ends hypopotenia in charge and discharge basic unit, corresponding low potential exits discharge module
Control switch Q1 cut-off, control switch Q2 is connected.In existing battery charging management system, electric discharge is exited because low potential is not arranged
Module can cause entire battery pack that can not use when single battery unit damages, and the utility model is exited by low potential to be put
The setting of electric module when single battery unit being made to damage hypopotenia, immediately exits from electric discharge application, without influencing entire battery pack
Use.
Further, it further includes low-potential signal output module, low-potential signal output that low potential, which exits in discharge module,
Module is connect with control unit.In this way, the case where control unit is by whether each failure of battery cells is facilitated to be sent to alarm modules
Or display module carries out alarm or display, informs.
Further, control unit is also connect with a display module, and display module is used for presentation of information.It is so convenient to electricity
Coherent signal during the group charge and discharge of pond is shown that the outer shroud that such as current detection module and voltage detection module detect fills
The job information of each battery unit is shown in the case where electric current in electrical circuit, voltage, each battery set charge/discharge unit.
Further, the information that display module is shown includes the work letter of each battery unit in each battery set charge/discharge unit
Breath, the job information of each battery unit on display module in array in showing in each battery set charge/discharge unit.Each battery pack is filled
The job information of each battery unit is shown on display module in array in discharge cell, and being conveniently operated personnel, quickly identification is each
The job information of each battery unit in battery set charge/discharge unit.
Further, the quantity of battery set charge/discharge unit is several, and several battery set charge/discharge units are divided into several groups,
All battery set charge/discharge units series connection in each group, all components Parallel opertation not after a Boost module voltage stabilizings.This reality
It is designed with the novel connection in series-parallel by several battery set charge/discharge units, the total capacity of formed battery is made to expand, it is each to meet
Kind power demand.
The utility model battery charging and discharging manages system, and outer shroud is charged back by the transformer in charge and discharge basic unit
Sense electrical signal in road, so that each inner ring charge circuit is mutually isolated, should be realized respectively to battery in each inner ring charge circuit
Each battery unit of group charges, i.e. the charging of each battery unit of battery pack is orthogonal, does not interfere with each other, a side
Face, since the requirement of single battery unit charging voltage is low；On the other hand, on outer shroud charge circuit in each charge and discharge basic unit
Transformer input side is connected, and the electric current by the transformer in each charge and discharge basic unit is identical easily-controllable, is filled in control battery pack
When charging voltage of the electric signal to meet each battery unit that electrical input provides, outer shroud charge circuit power on signal is with electric current
With reference to, great voltage should be provided as battery pack charging input end, it is required that it is relatively low, as a result, in battery pack charging input end
It when charging voltage is relatively low, can still charge to each battery unit of battery pack, so that low-voltage electricity can be able to effectively
It utilizes, is especially used in electric vehicle, is greatly improved the cruising ability of automobile, the utility model realizes multichannel pair simultaneously
The battery unit of each battery pack charges respectively, and charging rate is fast, and because not interfere with each other when charging, and keeps charging more balanced,
Be not in charge less, fill the phenomenon that insatiable hunger.
Description of the drawings
The specific implementation mode for managing the utility model battery charging and discharging system below in conjunction with the accompanying drawings is described in detail,
Wherein：
Fig. 1 is the company of single battery group charge/discharge unit and control unit in the utility model battery charging and discharging management system
Connect structural schematic diagram；
In Fig. 2 in the utility model battery charging and discharging management system display module display image planes, wherein dot indicates each
The job information of each battery unit in battery set charge/discharge unit；
Fig. 3 is the functional structure with several battery set charge/discharge units in the utility model battery charging and discharging management system
Schematic diagram.
Specific implementation mode
As shown in Figure 1, a kind of battery charging and discharging manages system, including control unit 100 and battery set charge/discharge unit
200, battery set charge/discharge unit 200 includes inverter circuit 1 and several charge and discharge basic units 2, each charge and discharge basic unit 2
Including a battery unit 21, transformer 22, rectification circuit 23 and the charging protecting module 24 in composition single battery group, battery
Group charging input end connects to form outer shroud after inverter circuit 1 with the input side of the transformer 22 of all charge and discharge basic units 2
Charge circuit is additionally provided with current detection module 3 and voltage detection module 4, each charge and discharge basic unit 2 on outer shroud charge circuit
In, the outlet side of transformer 22 forms inner ring after being connect successively with rectified current 23, charging protecting module 24, battery unit 21 and fills
Electrical circuit, 21 both ends of battery unit in each charge and discharge basic unit 2 also lead to cell discharge output end, Suo Youchong
The cell discharge output end series connection output of basic unit of discharging member 2, the inverter circuit 1 of battery set charge/discharge unit 200
Control terminal, current detection module 3 and voltage detection module 4 are connect with control unit 100 respectively.
The utility model battery charging and discharging manages system, preferably, charging protecting module 24 includes charging overcurrent protection mould
Block 241 and temperature detection protection module 242.Existing charging protecting module usually only includes charging overcurrent protection module or charged
Protection module is pressed, the danger that can only prevent overcurrent or over-pressed charge-carrying belt from coming, and cannot prevent other from being influenced bringing such as temperature
Danger, the utility model charging protecting module 24 include not only charging overcurrent protection module 241, can prevent overcurrent charge-carrying belt from coming
Danger further comprises temperature detection protection module 242, and chargeable temperature in the process crosses the danger in high band, and various aspects protection carries
The safety of high charge.
The utility model battery charging and discharging manages system, preferably, being equipped with over-current signal in charging overcurrent protection module 241
Output module 2411, over-current signal output module 2411 are connect with control unit 100.In this way, facilitating control unit 100 by each electricity
The case where whether pool unit 21 charges normal, is sent to alarm modules or display module carries out alarm or display, informs.
The utility model battery charging and discharging manages system, stops filling protection mould preferably, charging protecting module 24 includes full electricity
Block 243, full electricity stop filling protection module 243 for when corresponding 21 electricity of battery unit of battery pack is full of, disconnecting to the battery
The charging of unit 21.In this way, the battery unit 21 is avoided to overcharge, the danger exploded.
The utility model battery charging and discharging manages system, preferably, each charge and discharge basic unit 2 further includes being located at battery
The low potential of cell discharge output end front end exits discharge module 25, and it includes battery unit that the low potential, which exits discharge module 25,
Control switch Q1 on the circuit of electric discharge output end unilateral side, it is connected between the circuit of cell discharge output end both sides and positioned at controlling
The control switch Q2 of the rear ends switch Q1, when 21 liang of terminal potentials of battery unit in charge and discharge basic unit 2 are normal, corresponding low potential
Exit control switch Q1 conductings, the Q1 cut-offs of control switch of discharge module 25；21 liang of battery unit in charge and discharge basic unit 2
When terminal potential is too low, corresponding low potential exits the control switch Q1 cut-offs of discharge module 25, the Q2 conductings of control switch.Existing battery
In charging management system, discharge module is exited because low potential is not arranged, when the single battery unit 21 of battery pack damages, can be led
Cause entire battery pack that can not use, the utility model exits the setting of discharge module 25 by low potential, makes the single of battery pack
When battery unit 21 damages hypopotenia, electric discharge application is immediately exited from, the use without influencing entire battery pack.
The utility model battery charging and discharging manages system, preferably, it further includes low electricity that low potential, which exits in discharge module 25,
Position signal output module 251, low-potential signal output module 251 are connect with control unit 100.In this way, facilitating control unit 100
The case where whether each battery unit 21 is damaged, is sent to alarm modules or display module carries out alarm or display, informs.
The utility model battery charging and discharging manages system, preferably, control unit 100 is also connect with a display module 300,
Display module is used for presentation of information.So convenient to be shown to the coherent signal during battery pack charge and discharge, such as electric current is examined
The case where surveying electric current in the outer shroud charge circuit that module 3 and voltage detection module 4 detect, voltage, each battery set charge/discharge
The job information of each battery unit is shown in unit.
The utility model battery charging and discharging manages system, preferably, the information that display module 300 is shown includes each battery pack
The job information of each battery unit 21 in charge/discharge unit 200, the work of each battery unit 21 in each battery set charge/discharge unit 200
Make information in being shown in array on display module 300, as shown in Figure 2.Each battery unit 21 in each battery set charge/discharge unit 200
Job information show that the personnel that are conveniently operated quickly identify each battery set charge/discharge unit 2 in array on display module 300
In each battery unit 21 job information.
The utility model battery charging and discharging manages system, the direct current that inverter circuit 1 inputs battery pack charging input end
Signal is transformed to ac signal, can be by the telecommunications in outer shroud charge circuit so as to the transformer 22 of each charge and discharge basic unit 2
Number induction is in inner ring charge circuit；Current detection module 3 and voltage detection module 4 detect in outer shroud charge circuit respectively
Electric current and voltage value, and be sent into control unit 100, control unit 100 judges outer shroud according to the electric current and voltage value that detect
Whether the electric signal on charge circuit is normal, and the control terminal by controlling inverter circuit 1, to the electricity in outer shroud charge circuit
Stream and voltage accordingly adjust, and electric current and voltage in outer shroud charge circuit is made to handle normal condition always；Charge and discharge are substantially single
Transformer 22 in member 2 is used for should be in inner ring charge circuit by the sense electrical signal in outer shroud charge circuit；Charge and discharge are substantially single
Rectification circuit 23 in member 2 will incude obtained ac signal by transformer 22 and be rectified into DC signal, so as to postorder pair
Battery unit 21 charges in the charge and discharge basic unit 2；Charging protecting module 24 is to the charge and discharge in charge and discharge basic unit 2
The charging of battery unit 20 plays safeguard protection in electric basic unit 2.
The utility model battery charging and discharging manages system, is filled outer shroud by the transformer 22 in charge and discharge basic unit 2
Sense electrical signal in electrical circuit should be in each inner ring charge circuit, so that each inner ring charge circuit is mutually isolated, it is right respectively to realize
Each battery unit 21 of battery pack charges, i.e. the charging of each battery unit 21 of battery pack is orthogonal, does not do mutually
It disturbs, on the one hand, since the requirement of 21 charging voltage of single battery unit is low；On the other hand, each charge and discharge base on outer shroud charge circuit
22 input side of transformer series connection in this unit 2, it is identical easily by the electric current of the transformer 22 in each charge and discharge basic unit 2
Control, when controlling charging voltage of the electric signal of battery pack charging input end offer to meet each battery unit 21, outer shroud charging
Circuit power on signal is reference with electric current, and great voltage should be provided as battery pack charging input end, it is required that it is relatively low, by
This can still charge to each battery unit 21 of battery pack, when battery pack charging input end charging voltage is relatively low to make
Obtaining low-voltage electricity can be effectively used, and be especially used in electric vehicle, be greatly improved the cruising ability of automobile, this
Utility model realizes that multichannel charges respectively to each battery unit 21 of battery pack simultaneously, and charging rate is fast, and because charging when
It does not interfere with each other, and keeps charging more balanced, be not in charge less, fill the phenomenon that insatiable hunger.
The utility model battery charging and discharging manages system, and the quantity of battery set charge/discharge unit 200 can be one, or
Several；Several 200 output ends of battery set charge/discharge unit can serial or parallel connection, also can be used in combination.As shown in Figure 3,
Several battery set charge/discharge units 200 are divided into several groups, and all battery set charge/discharge units 200 series connection in each group is owned
Organize the Parallel opertation after 400 voltage stabilizing of a Boost modules respectively, wherein Boost modules 400 play pressure regulation, make all groups of outputs
Voltage it is identical, in order to used in parallel, the utility model is designed by the connection in series-parallel of several battery set charge/discharge units 200,
The total capacity of formed battery is set to expand, to meet various power demands.
The utility model battery charging and discharging manage system, inverter circuit 1 can be half-bridge inversion circuit, full bridge inverter or
Push-pull inverter；Rectification circuit 23 can be bridge rectifier, half-wave rectifying circuit or full-wave rectifying circuit；Control switch
Q1, control switch Q1 can be MOS switch pipe, triode or other controllable switches.
Claims (9)
1. a kind of battery charging and discharging manages system, including control unit and battery set charge/discharge unit, it is characterised in that：Battery pack
Charge/discharge unit includes inverter circuit and several charge and discharge basic units, and each charge and discharge basic unit includes composition single battery
A battery unit, transformer, rectification circuit and charging protecting module in group, battery pack charging input end is after inverter circuit
It connects to form outer shroud charge circuit with the input side of the transformer of all charge and discharge basic units, be additionally provided on outer shroud charge circuit
Current detection module and voltage detection module, in each charge and discharge basic unit, the outlet side of transformer successively with rectified current,
Inner ring charge circuit, the battery unit two in each charge and discharge basic unit are formed after charging protecting module, battery unit connection
End also leads to cell discharge output end, and the cell discharge output end series connection of all charge and discharge basic units exports,
Control terminal, current detection module and the voltage detection module of the inverter circuit of battery set charge/discharge unit connect with control unit respectively
It connects.
2. battery charging and discharging according to claim 1 manages system, it is characterised in that：Charging protecting module includes charging
Flow protection module and temperature detection protection module.
3. battery charging and discharging according to claim 2 manages system, it is characterised in that：It is equipped in charging overcurrent protection module
Over-current signal output module, over-current signal output module are connect with control unit.
4. battery charging and discharging according to claim 1 manages system, it is characterised in that：Charging protecting module includes that full electricity stops
Protection module is filled, full electricity stops filling protection module for when the corresponding battery unit electricity of battery pack is full of, disconnecting to the battery
The charging of unit.
5. battery charging and discharging according to claim 1 manages system, it is characterised in that：Each charge and discharge basic unit is also wrapped
It includes the low potential positioned at cell discharge output end front end and exits discharge module, it includes electricity that the low potential, which exits discharge module,
Control switch Q1 on the circuit of pool unit electric discharge output end unilateral side, it is connected between the circuit of cell discharge output end both sides and position
It is corresponding low when two terminal potential of battery unit in the control switch Q2 for controlling the rear ends switch Q1, charge and discharge basic unit is normal
Current potential exits the control switch Q1 conductings of discharge module, the Q2 cut-offs of control switch；Battery unit two in charge and discharge basic unit
When terminal potential is too low, corresponding low potential exits the control switch Q1 cut-offs of discharge module, the Q2 conductings of control switch.
6. battery charging and discharging according to claim 5 manages system, it is characterised in that：Low potential exits in discharge module also
Including low-potential signal output module, low-potential signal output module is connect with control unit.
7. battery charging and discharging according to claim 1 manages system, it is characterised in that：Control unit also with a display module
Connection, display module are used for presentation of information.
8. battery charging and discharging according to claim 7 manages system, it is characterised in that：The information that display module is shown includes
The job information of each battery unit in each battery set charge/discharge unit, the work of each battery unit in each battery set charge/discharge unit
Information on display module in array in showing.
9. battery charging and discharging according to claim 1 manages system, it is characterised in that：The quantity of battery set charge/discharge unit
To be several, several battery set charge/discharge units are divided into several groups, and all battery set charge/discharge units series connection in each group is owned
Organize the Parallel opertation after a Boost module voltage stabilizings respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721754088.1U CN207819479U (en) | 2017-12-15 | 2017-12-15 | A kind of battery charging and discharging management system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721754088.1U CN207819479U (en) | 2017-12-15 | 2017-12-15 | A kind of battery charging and discharging management system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207819479U true CN207819479U (en) | 2018-09-04 |
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ID=63332500
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721754088.1U Active CN207819479U (en) | 2017-12-15 | 2017-12-15 | A kind of battery charging and discharging management system |
Country Status (1)
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| CN (1) | CN207819479U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107785970A (en) * | 2017-12-15 | 2018-03-09 | 维尔纳（福建）电机有限公司 | A kind of battery charging and discharging management system |
-
2017
- 2017-12-15 CN CN201721754088.1U patent/CN207819479U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107785970A (en) * | 2017-12-15 | 2018-03-09 | 维尔纳（福建）电机有限公司 | A kind of battery charging and discharging management system |
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